Merge branch 'for-4.18/alps' into for-linus

hid-alps driver cleanups wrt. t4_read_write_register() handling
from Christophe Jaillet

100 files changed, 4273 insertions, 2333 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f69e689d609b..00fcf81f2c56 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -29,6 +29,7 @@ config X86_64
 	select HAVE_ARCH_SOFT_DIRTY
 	select MODULES_USE_ELF_RELA
 	select X86_DEV_DMA_OPS
+	select ARCH_HAS_SYSCALL_WRAPPER
 
 #
 # Arch settings
@@ -1296,7 +1297,7 @@ config MICROCODE
 	  the Linux kernel.
 
 	  The preferred method to load microcode from a detached initrd is described
-	  in Documentation/x86/early-microcode.txt. For that you need to enable
+	  in Documentation/x86/microcode.txt. For that you need to enable
 	  CONFIG_BLK_DEV_INITRD in order for the loader to be able to scan the
 	  initrd for microcode blobs.
 
@@ -2008,6 +2009,9 @@ config KEXEC_FILE
 	  for kernel and initramfs as opposed to list of segments as
 	  accepted by previous system call.
 
+config ARCH_HAS_KEXEC_PURGATORY
+	def_bool KEXEC_FILE
+
 config KEXEC_VERIFY_SIG
 	bool "Verify kernel signature during kexec_file_load() syscall"
 	depends on KEXEC_FILE
@@ -2760,11 +2764,9 @@ config OLPC_XO1_RTC
 
 config OLPC_XO1_SCI
 	bool "OLPC XO-1 SCI extras"
-	depends on OLPC && OLPC_XO1_PM
+	depends on OLPC && OLPC_XO1_PM && GPIO_CS5535=y
 	depends on INPUT=y
 	select POWER_SUPPLY
-	select GPIO_CS5535
-	select MFD_CORE
 	---help---
 	  Add support for SCI-based features of the OLPC XO-1 laptop:
 	   - EC-driven system wakeups
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
index 66e42a098d70..a0a50b91ecef 100644
--- a/arch/x86/boot/compressed/kaslr.c
+++ b/arch/x86/boot/compressed/kaslr.c
@@ -54,6 +54,9 @@ unsigned int ptrs_per_p4d __ro_after_init = 1;
 
 extern unsigned long get_cmd_line_ptr(void);
 
+/* Used by PAGE_KERN* macros: */
+pteval_t __default_kernel_pte_mask __read_mostly = ~0;
+
 /* Simplified build-specific string for starting entropy. */
 static const char build_str[] = UTS_RELEASE " (" LINUX_COMPILE_BY "@"
 		LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION;
diff --git a/arch/x86/entry/calling.h b/arch/x86/entry/calling.h
index be63330c5511..352e70cd33e8 100644
--- a/arch/x86/entry/calling.h
+++ b/arch/x86/entry/calling.h
@@ -114,7 +114,9 @@ For 32-bit we have the following conventions - kernel is built with
 	pushq   %rsi		/* pt_regs->si */
 	.endif
 	pushq	\rdx		/* pt_regs->dx */
+	xorl	%edx, %edx	/* nospec   dx */
 	pushq   %rcx		/* pt_regs->cx */
+	xorl	%ecx, %ecx	/* nospec   cx */
 	pushq   \rax		/* pt_regs->ax */
 	pushq   %r8		/* pt_regs->r8 */
 	xorl	%r8d, %r8d	/* nospec   r8 */
diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
index 74f6eee15179..fbf6a6c3fd2d 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -266,14 +266,13 @@ __visible inline void syscall_return_slowpath(struct pt_regs *regs)
 }
 
 #ifdef CONFIG_X86_64
-__visible void do_syscall_64(struct pt_regs *regs)
+__visible void do_syscall_64(unsigned long nr, struct pt_regs *regs)
 {
-	struct thread_info *ti = current_thread_info();
-	unsigned long nr = regs->orig_ax;
+	struct thread_info *ti;
 
 	enter_from_user_mode();
 	local_irq_enable();
-
+	ti = current_thread_info();
 	if (READ_ONCE(ti->flags) & _TIF_WORK_SYSCALL_ENTRY)
 		nr = syscall_trace_enter(regs);
 
@@ -282,11 +281,10 @@ __visible void do_syscall_64(struct pt_regs *regs)
 	 * table.  The only functional difference is the x32 bit in
 	 * regs->orig_ax, which changes the behavior of some syscalls.
 	 */
-	if (likely((nr & __SYSCALL_MASK) < NR_syscalls)) {
-		nr = array_index_nospec(nr & __SYSCALL_MASK, NR_syscalls);
-		regs->ax = sys_call_table[nr](
-			regs->di, regs->si, regs->dx,
-			regs->r10, regs->r8, regs->r9);
+	nr &= __SYSCALL_MASK;
+	if (likely(nr < NR_syscalls)) {
+		nr = array_index_nospec(nr, NR_syscalls);
+		regs->ax = sys_call_table[nr](regs);
 	}
 
 	syscall_return_slowpath(regs);
@@ -321,6 +319,9 @@ static __always_inline void do_syscall_32_irqs_on(struct pt_regs *regs)
 
 	if (likely(nr < IA32_NR_syscalls)) {
 		nr = array_index_nospec(nr, IA32_NR_syscalls);
+#ifdef CONFIG_IA32_EMULATION
+		regs->ax = ia32_sys_call_table[nr](regs);
+#else
 		/*
 		 * It's possible that a 32-bit syscall implementation
 		 * takes a 64-bit parameter but nonetheless assumes that
@@ -331,6 +332,7 @@ static __always_inline void do_syscall_32_irqs_on(struct pt_regs *regs)
 			(unsigned int)regs->bx, (unsigned int)regs->cx,
 			(unsigned int)regs->dx, (unsigned int)regs->si,
 			(unsigned int)regs->di, (unsigned int)regs->bp);
+#endif /* CONFIG_IA32_EMULATION */
 	}
 
 	syscall_return_slowpath(regs);
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index b0a4649e55ce..3166b9674429 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -233,7 +233,8 @@ GLOBAL(entry_SYSCALL_64_after_hwframe)
 	TRACE_IRQS_OFF
 
 	/* IRQs are off. */
-	movq	%rsp, %rdi
+	movq	%rax, %rdi
+	movq	%rsp, %rsi
 	call	do_syscall_64		/* returns with IRQs disabled */
 
 	TRACE_IRQS_IRETQ		/* we're about to change IF */
@@ -913,7 +914,7 @@ ENTRY(\sym)
 	pushq	$-1				/* ORIG_RAX: no syscall to restart */
 	.endif
 
-	.if \paranoid < 2
+	.if \paranoid == 1
 	testb	$3, CS-ORIG_RAX(%rsp)		/* If coming from userspace, switch stacks */
 	jnz	.Lfrom_usermode_switch_stack_\@
 	.endif
@@ -960,7 +961,7 @@ ENTRY(\sym)
 	jmp	error_exit
 	.endif
 
-	.if \paranoid < 2
+	.if \paranoid == 1
 	/*
 	 * Entry from userspace.  Switch stacks and treat it
 	 * as a normal entry.  This means that paranoid handlers
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S
index 08425c42f8b7..9af927e59d49 100644
--- a/arch/x86/entry/entry_64_compat.S
+++ b/arch/x86/entry/entry_64_compat.S
@@ -220,8 +220,11 @@ GLOBAL(entry_SYSCALL_compat_after_hwframe)
 	pushq	%rax			/* pt_regs->orig_ax */
 	pushq	%rdi			/* pt_regs->di */
 	pushq	%rsi			/* pt_regs->si */
+	xorl	%esi, %esi		/* nospec   si */
 	pushq	%rdx			/* pt_regs->dx */
+	xorl	%edx, %edx		/* nospec   dx */
 	pushq	%rbp			/* pt_regs->cx (stashed in bp) */
+	xorl	%ecx, %ecx		/* nospec   cx */
 	pushq	$-ENOSYS		/* pt_regs->ax */
 	pushq   $0			/* pt_regs->r8  = 0 */
 	xorl	%r8d, %r8d		/* nospec   r8 */
@@ -365,8 +368,11 @@ ENTRY(entry_INT80_compat)
 
 	pushq	(%rdi)			/* pt_regs->di */
 	pushq	%rsi			/* pt_regs->si */
+	xorl	%esi, %esi		/* nospec   si */
 	pushq	%rdx			/* pt_regs->dx */
+	xorl	%edx, %edx		/* nospec   dx */
 	pushq	%rcx			/* pt_regs->cx */
+	xorl	%ecx, %ecx		/* nospec   cx */
 	pushq	$-ENOSYS		/* pt_regs->ax */
 	pushq   $0			/* pt_regs->r8  = 0 */
 	xorl	%r8d, %r8d		/* nospec   r8 */
diff --git a/arch/x86/entry/syscall_32.c b/arch/x86/entry/syscall_32.c
index 95c294963612..aa3336a7cb15 100644
--- a/arch/x86/entry/syscall_32.c
+++ b/arch/x86/entry/syscall_32.c
@@ -7,14 +7,23 @@
 #include <asm/asm-offsets.h>
 #include <asm/syscall.h>
 
-#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ;
+#ifdef CONFIG_IA32_EMULATION
+/* On X86_64, we use struct pt_regs * to pass parameters to syscalls */
+#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(const struct pt_regs *);
+
+/* this is a lie, but it does not hurt as sys_ni_syscall just returns -EINVAL */
+extern asmlinkage long sys_ni_syscall(const struct pt_regs *);
+
+#else /* CONFIG_IA32_EMULATION */
+#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
+extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
+#endif /* CONFIG_IA32_EMULATION */
+
 #include <asm/syscalls_32.h>
 #undef __SYSCALL_I386
 
 #define __SYSCALL_I386(nr, sym, qual) [nr] = sym,
 
-extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
-
 __visible const sys_call_ptr_t ia32_sys_call_table[__NR_syscall_compat_max+1] = {
 	/*
 	 * Smells like a compiler bug -- it doesn't work
diff --git a/arch/x86/entry/syscall_64.c b/arch/x86/entry/syscall_64.c
index c176d2fab1da..d5252bc1e380 100644
--- a/arch/x86/entry/syscall_64.c
+++ b/arch/x86/entry/syscall_64.c
@@ -7,14 +7,14 @@
 #include <asm/asm-offsets.h>
 #include <asm/syscall.h>
 
-#define __SYSCALL_64(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
+/* this is a lie, but it does not hurt as sys_ni_syscall just returns -EINVAL */
+extern asmlinkage long sys_ni_syscall(const struct pt_regs *);
+#define __SYSCALL_64(nr, sym, qual) extern asmlinkage long sym(const struct pt_regs *);
 #include <asm/syscalls_64.h>
 #undef __SYSCALL_64
 
 #define __SYSCALL_64(nr, sym, qual) [nr] = sym,
 
-extern long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
-
 asmlinkage const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = {
 	/*
 	 * Smells like a compiler bug -- it doesn't work
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index c58f75b088c5..d6b27dab1b30 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -4,390 +4,395 @@
 # The format is:
 # <number> <abi> <name> <entry point> <compat entry point>
 #
+# The __ia32_sys and __ia32_compat_sys stubs are created on-the-fly for
+# sys_*() system calls and compat_sys_*() compat system calls if
+# IA32_EMULATION is defined, and expect struct pt_regs *regs as their only
+# parameter.
+#
 # The abi is always "i386" for this file.
 #
-0	i386	restart_syscall		sys_restart_syscall
-1	i386	exit			sys_exit
-2	i386	fork			sys_fork
-3	i386	read			sys_read
-4	i386	write			sys_write
-5	i386	open			sys_open			compat_sys_open
-6	i386	close			sys_close
-7	i386	waitpid			sys_waitpid
-8	i386	creat			sys_creat
-9	i386	link			sys_link
-10	i386	unlink			sys_unlink
-11	i386	execve			sys_execve			compat_sys_execve
-12	i386	chdir			sys_chdir
-13	i386	time			sys_time			compat_sys_time
-14	i386	mknod			sys_mknod
-15	i386	chmod			sys_chmod
-16	i386	lchown			sys_lchown16
+0	i386	restart_syscall		sys_restart_syscall		__ia32_sys_restart_syscall
+1	i386	exit			sys_exit			__ia32_sys_exit
+2	i386	fork			sys_fork			__ia32_sys_fork
+3	i386	read			sys_read			__ia32_sys_read
+4	i386	write			sys_write			__ia32_sys_write
+5	i386	open			sys_open			__ia32_compat_sys_open
+6	i386	close			sys_close			__ia32_sys_close
+7	i386	waitpid			sys_waitpid			__ia32_sys_waitpid
+8	i386	creat			sys_creat			__ia32_sys_creat
+9	i386	link			sys_link			__ia32_sys_link
+10	i386	unlink			sys_unlink			__ia32_sys_unlink
+11	i386	execve			sys_execve			__ia32_compat_sys_execve
+12	i386	chdir			sys_chdir			__ia32_sys_chdir
+13	i386	time			sys_time			__ia32_compat_sys_time
+14	i386	mknod			sys_mknod			__ia32_sys_mknod
+15	i386	chmod			sys_chmod			__ia32_sys_chmod
+16	i386	lchown			sys_lchown16			__ia32_sys_lchown16
 17	i386	break
-18	i386	oldstat			sys_stat
-19	i386	lseek			sys_lseek			compat_sys_lseek
-20	i386	getpid			sys_getpid
-21	i386	mount			sys_mount			compat_sys_mount
-22	i386	umount			sys_oldumount
-23	i386	setuid			sys_setuid16
-24	i386	getuid			sys_getuid16
-25	i386	stime			sys_stime			compat_sys_stime
-26	i386	ptrace			sys_ptrace			compat_sys_ptrace
-27	i386	alarm			sys_alarm
-28	i386	oldfstat		sys_fstat
-29	i386	pause			sys_pause
-30	i386	utime			sys_utime			compat_sys_utime
+18	i386	oldstat			sys_stat			__ia32_sys_stat
+19	i386	lseek			sys_lseek			__ia32_compat_sys_lseek
+20	i386	getpid			sys_getpid			__ia32_sys_getpid
+21	i386	mount			sys_mount			__ia32_compat_sys_mount
+22	i386	umount			sys_oldumount			__ia32_sys_oldumount
+23	i386	setuid			sys_setuid16			__ia32_sys_setuid16
+24	i386	getuid			sys_getuid16			__ia32_sys_getuid16
+25	i386	stime			sys_stime			__ia32_compat_sys_stime
+26	i386	ptrace			sys_ptrace			__ia32_compat_sys_ptrace
+27	i386	alarm			sys_alarm			__ia32_sys_alarm
+28	i386	oldfstat		sys_fstat			__ia32_sys_fstat
+29	i386	pause			sys_pause			__ia32_sys_pause
+30	i386	utime			sys_utime			__ia32_compat_sys_utime
 31	i386	stty
 32	i386	gtty
-33	i386	access			sys_access
-34	i386	nice			sys_nice
+33	i386	access			sys_access			__ia32_sys_access
+34	i386	nice			sys_nice			__ia32_sys_nice
 35	i386	ftime
-36	i386	sync			sys_sync
-37	i386	kill			sys_kill
-38	i386	rename			sys_rename
-39	i386	mkdir			sys_mkdir
-40	i386	rmdir			sys_rmdir
-41	i386	dup			sys_dup
-42	i386	pipe			sys_pipe
-43	i386	times			sys_times			compat_sys_times
+36	i386	sync			sys_sync			__ia32_sys_sync
+37	i386	kill			sys_kill			__ia32_sys_kill
+38	i386	rename			sys_rename			__ia32_sys_rename
+39	i386	mkdir			sys_mkdir			__ia32_sys_mkdir
+40	i386	rmdir			sys_rmdir			__ia32_sys_rmdir
+41	i386	dup			sys_dup				__ia32_sys_dup
+42	i386	pipe			sys_pipe			__ia32_sys_pipe
+43	i386	times			sys_times			__ia32_compat_sys_times
 44	i386	prof
-45	i386	brk			sys_brk
-46	i386	setgid			sys_setgid16
-47	i386	getgid			sys_getgid16
-48	i386	signal			sys_signal
-49	i386	geteuid			sys_geteuid16
-50	i386	getegid			sys_getegid16
-51	i386	acct			sys_acct
-52	i386	umount2			sys_umount
+45	i386	brk			sys_brk				__ia32_sys_brk
+46	i386	setgid			sys_setgid16			__ia32_sys_setgid16
+47	i386	getgid			sys_getgid16			__ia32_sys_getgid16
+48	i386	signal			sys_signal			__ia32_sys_signal
+49	i386	geteuid			sys_geteuid16			__ia32_sys_geteuid16
+50	i386	getegid			sys_getegid16			__ia32_sys_getegid16
+51	i386	acct			sys_acct			__ia32_sys_acct
+52	i386	umount2			sys_umount			__ia32_sys_umount
 53	i386	lock
-54	i386	ioctl			sys_ioctl			compat_sys_ioctl
-55	i386	fcntl			sys_fcntl			compat_sys_fcntl64
+54	i386	ioctl			sys_ioctl			__ia32_compat_sys_ioctl
+55	i386	fcntl			sys_fcntl			__ia32_compat_sys_fcntl64
 56	i386	mpx
-57	i386	setpgid			sys_setpgid
+57	i386	setpgid			sys_setpgid			__ia32_sys_setpgid
 58	i386	ulimit
-59	i386	oldolduname		sys_olduname
-60	i386	umask			sys_umask
-61	i386	chroot			sys_chroot
-62	i386	ustat			sys_ustat			compat_sys_ustat
-63	i386	dup2			sys_dup2
-64	i386	getppid			sys_getppid
-65	i386	getpgrp			sys_getpgrp
-66	i386	setsid			sys_setsid
-67	i386	sigaction		sys_sigaction			compat_sys_sigaction
-68	i386	sgetmask		sys_sgetmask
-69	i386	ssetmask		sys_ssetmask
-70	i386	setreuid		sys_setreuid16
-71	i386	setregid		sys_setregid16
-72	i386	sigsuspend		sys_sigsuspend
-73	i386	sigpending		sys_sigpending			compat_sys_sigpending
-74	i386	sethostname		sys_sethostname
-75	i386	setrlimit		sys_setrlimit			compat_sys_setrlimit
-76	i386	getrlimit		sys_old_getrlimit		compat_sys_old_getrlimit
-77	i386	getrusage		sys_getrusage			compat_sys_getrusage
-78	i386	gettimeofday		sys_gettimeofday		compat_sys_gettimeofday
-79	i386	settimeofday		sys_settimeofday		compat_sys_settimeofday
-80	i386	getgroups		sys_getgroups16
-81	i386	setgroups		sys_setgroups16
-82	i386	select			sys_old_select			compat_sys_old_select
-83	i386	symlink			sys_symlink
-84	i386	oldlstat		sys_lstat
-85	i386	readlink		sys_readlink
-86	i386	uselib			sys_uselib
-87	i386	swapon			sys_swapon
-88	i386	reboot			sys_reboot
-89	i386	readdir			sys_old_readdir			compat_sys_old_readdir
-90	i386	mmap			sys_old_mmap			compat_sys_x86_mmap
-91	i386	munmap			sys_munmap
-92	i386	truncate		sys_truncate			compat_sys_truncate
-93	i386	ftruncate		sys_ftruncate			compat_sys_ftruncate
-94	i386	fchmod			sys_fchmod
-95	i386	fchown			sys_fchown16
-96	i386	getpriority		sys_getpriority
-97	i386	setpriority		sys_setpriority
+59	i386	oldolduname		sys_olduname			__ia32_sys_olduname
+60	i386	umask			sys_umask			__ia32_sys_umask
+61	i386	chroot			sys_chroot			__ia32_sys_chroot
+62	i386	ustat			sys_ustat			__ia32_compat_sys_ustat
+63	i386	dup2			sys_dup2			__ia32_sys_dup2
+64	i386	getppid			sys_getppid			__ia32_sys_getppid
+65	i386	getpgrp			sys_getpgrp			__ia32_sys_getpgrp
+66	i386	setsid			sys_setsid			__ia32_sys_setsid
+67	i386	sigaction		sys_sigaction			__ia32_compat_sys_sigaction
+68	i386	sgetmask		sys_sgetmask			__ia32_sys_sgetmask
+69	i386	ssetmask		sys_ssetmask			__ia32_sys_ssetmask
+70	i386	setreuid		sys_setreuid16			__ia32_sys_setreuid16
+71	i386	setregid		sys_setregid16			__ia32_sys_setregid16
+72	i386	sigsuspend		sys_sigsuspend			__ia32_sys_sigsuspend
+73	i386	sigpending		sys_sigpending			__ia32_compat_sys_sigpending
+74	i386	sethostname		sys_sethostname			__ia32_sys_sethostname
+75	i386	setrlimit		sys_setrlimit			__ia32_compat_sys_setrlimit
+76	i386	getrlimit		sys_old_getrlimit		__ia32_compat_sys_old_getrlimit
+77	i386	getrusage		sys_getrusage			__ia32_compat_sys_getrusage
+78	i386	gettimeofday		sys_gettimeofday		__ia32_compat_sys_gettimeofday
+79	i386	settimeofday		sys_settimeofday		__ia32_compat_sys_settimeofday
+80	i386	getgroups		sys_getgroups16			__ia32_sys_getgroups16
+81	i386	setgroups		sys_setgroups16			__ia32_sys_setgroups16
+82	i386	select			sys_old_select			__ia32_compat_sys_old_select
+83	i386	symlink			sys_symlink			__ia32_sys_symlink
+84	i386	oldlstat		sys_lstat			__ia32_sys_lstat
+85	i386	readlink		sys_readlink			__ia32_sys_readlink
+86	i386	uselib			sys_uselib			__ia32_sys_uselib
+87	i386	swapon			sys_swapon			__ia32_sys_swapon
+88	i386	reboot			sys_reboot			__ia32_sys_reboot
+89	i386	readdir			sys_old_readdir			__ia32_compat_sys_old_readdir
+90	i386	mmap			sys_old_mmap			__ia32_compat_sys_x86_mmap
+91	i386	munmap			sys_munmap			__ia32_sys_munmap
+92	i386	truncate		sys_truncate			__ia32_compat_sys_truncate
+93	i386	ftruncate		sys_ftruncate			__ia32_compat_sys_ftruncate
+94	i386	fchmod			sys_fchmod			__ia32_sys_fchmod
+95	i386	fchown			sys_fchown16			__ia32_sys_fchown16
+96	i386	getpriority		sys_getpriority			__ia32_sys_getpriority
+97	i386	setpriority		sys_setpriority			__ia32_sys_setpriority
 98	i386	profil
-99	i386	statfs			sys_statfs			compat_sys_statfs
-100	i386	fstatfs			sys_fstatfs			compat_sys_fstatfs
-101	i386	ioperm			sys_ioperm
-102	i386	socketcall		sys_socketcall			compat_sys_socketcall
-103	i386	syslog			sys_syslog
-104	i386	setitimer		sys_setitimer			compat_sys_setitimer
-105	i386	getitimer		sys_getitimer			compat_sys_getitimer
-106	i386	stat			sys_newstat			compat_sys_newstat
-107	i386	lstat			sys_newlstat			compat_sys_newlstat
-108	i386	fstat			sys_newfstat			compat_sys_newfstat
-109	i386	olduname		sys_uname
-110	i386	iopl			sys_iopl
-111	i386	vhangup			sys_vhangup
+99	i386	statfs			sys_statfs			__ia32_compat_sys_statfs
+100	i386	fstatfs			sys_fstatfs			__ia32_compat_sys_fstatfs
+101	i386	ioperm			sys_ioperm			__ia32_sys_ioperm
+102	i386	socketcall		sys_socketcall			__ia32_compat_sys_socketcall
+103	i386	syslog			sys_syslog			__ia32_sys_syslog
+104	i386	setitimer		sys_setitimer			__ia32_compat_sys_setitimer
+105	i386	getitimer		sys_getitimer			__ia32_compat_sys_getitimer
+106	i386	stat			sys_newstat			__ia32_compat_sys_newstat
+107	i386	lstat			sys_newlstat			__ia32_compat_sys_newlstat
+108	i386	fstat			sys_newfstat			__ia32_compat_sys_newfstat
+109	i386	olduname		sys_uname			__ia32_sys_uname
+110	i386	iopl			sys_iopl			__ia32_sys_iopl
+111	i386	vhangup			sys_vhangup			__ia32_sys_vhangup
 112	i386	idle
 113	i386	vm86old			sys_vm86old			sys_ni_syscall
-114	i386	wait4			sys_wait4			compat_sys_wait4
-115	i386	swapoff			sys_swapoff
-116	i386	sysinfo			sys_sysinfo			compat_sys_sysinfo
-117	i386	ipc			sys_ipc				compat_sys_ipc
-118	i386	fsync			sys_fsync
+114	i386	wait4			sys_wait4			__ia32_compat_sys_wait4
+115	i386	swapoff			sys_swapoff			__ia32_sys_swapoff
+116	i386	sysinfo			sys_sysinfo			__ia32_compat_sys_sysinfo
+117	i386	ipc			sys_ipc				__ia32_compat_sys_ipc
+118	i386	fsync			sys_fsync			__ia32_sys_fsync
 119	i386	sigreturn		sys_sigreturn			sys32_sigreturn
-120	i386	clone			sys_clone			compat_sys_x86_clone
-121	i386	setdomainname		sys_setdomainname
-122	i386	uname			sys_newuname
-123	i386	modify_ldt		sys_modify_ldt
-124	i386	adjtimex		sys_adjtimex			compat_sys_adjtimex
-125	i386	mprotect		sys_mprotect
-126	i386	sigprocmask		sys_sigprocmask			compat_sys_sigprocmask
+120	i386	clone			sys_clone			__ia32_compat_sys_x86_clone
+121	i386	setdomainname		sys_setdomainname		__ia32_sys_setdomainname
+122	i386	uname			sys_newuname			__ia32_sys_newuname
+123	i386	modify_ldt		sys_modify_ldt			__ia32_sys_modify_ldt
+124	i386	adjtimex		sys_adjtimex			__ia32_compat_sys_adjtimex
+125	i386	mprotect		sys_mprotect			__ia32_sys_mprotect
+126	i386	sigprocmask		sys_sigprocmask			__ia32_compat_sys_sigprocmask
 127	i386	create_module
-128	i386	init_module		sys_init_module
-129	i386	delete_module		sys_delete_module
+128	i386	init_module		sys_init_module			__ia32_sys_init_module
+129	i386	delete_module		sys_delete_module		__ia32_sys_delete_module
 130	i386	get_kernel_syms
-131	i386	quotactl		sys_quotactl			compat_sys_quotactl32
-132	i386	getpgid			sys_getpgid
-133	i386	fchdir			sys_fchdir
-134	i386	bdflush			sys_bdflush
-135	i386	sysfs			sys_sysfs
-136	i386	personality		sys_personality
+131	i386	quotactl		sys_quotactl			__ia32_compat_sys_quotactl32
+132	i386	getpgid			sys_getpgid			__ia32_sys_getpgid
+133	i386	fchdir			sys_fchdir			__ia32_sys_fchdir
+134	i386	bdflush			sys_bdflush			__ia32_sys_bdflush
+135	i386	sysfs			sys_sysfs			__ia32_sys_sysfs
+136	i386	personality		sys_personality			__ia32_sys_personality
 137	i386	afs_syscall
-138	i386	setfsuid		sys_setfsuid16
-139	i386	setfsgid		sys_setfsgid16
-140	i386	_llseek			sys_llseek
-141	i386	getdents		sys_getdents			compat_sys_getdents
-142	i386	_newselect		sys_select			compat_sys_select
-143	i386	flock			sys_flock
-144	i386	msync			sys_msync
-145	i386	readv			sys_readv			compat_sys_readv
-146	i386	writev			sys_writev			compat_sys_writev
-147	i386	getsid			sys_getsid
-148	i386	fdatasync		sys_fdatasync
-149	i386	_sysctl			sys_sysctl			compat_sys_sysctl
-150	i386	mlock			sys_mlock
-151	i386	munlock			sys_munlock
-152	i386	mlockall		sys_mlockall
-153	i386	munlockall		sys_munlockall
-154	i386	sched_setparam		sys_sched_setparam
-155	i386	sched_getparam		sys_sched_getparam
-156	i386	sched_setscheduler	sys_sched_setscheduler
-157	i386	sched_getscheduler	sys_sched_getscheduler
-158	i386	sched_yield		sys_sched_yield
-159	i386	sched_get_priority_max	sys_sched_get_priority_max
-160	i386	sched_get_priority_min	sys_sched_get_priority_min
-161	i386	sched_rr_get_interval	sys_sched_rr_get_interval	compat_sys_sched_rr_get_interval
-162	i386	nanosleep		sys_nanosleep			compat_sys_nanosleep
-163	i386	mremap			sys_mremap
-164	i386	setresuid		sys_setresuid16
-165	i386	getresuid		sys_getresuid16
+138	i386	setfsuid		sys_setfsuid16			__ia32_sys_setfsuid16
+139	i386	setfsgid		sys_setfsgid16			__ia32_sys_setfsgid16
+140	i386	_llseek			sys_llseek			__ia32_sys_llseek
+141	i386	getdents		sys_getdents			__ia32_compat_sys_getdents
+142	i386	_newselect		sys_select			__ia32_compat_sys_select
+143	i386	flock			sys_flock			__ia32_sys_flock
+144	i386	msync			sys_msync			__ia32_sys_msync
+145	i386	readv			sys_readv			__ia32_compat_sys_readv
+146	i386	writev			sys_writev			__ia32_compat_sys_writev
+147	i386	getsid			sys_getsid			__ia32_sys_getsid
+148	i386	fdatasync		sys_fdatasync			__ia32_sys_fdatasync
+149	i386	_sysctl			sys_sysctl			__ia32_compat_sys_sysctl
+150	i386	mlock			sys_mlock			__ia32_sys_mlock
+151	i386	munlock			sys_munlock			__ia32_sys_munlock
+152	i386	mlockall		sys_mlockall			__ia32_sys_mlockall
+153	i386	munlockall		sys_munlockall			__ia32_sys_munlockall
+154	i386	sched_setparam		sys_sched_setparam		__ia32_sys_sched_setparam
+155	i386	sched_getparam		sys_sched_getparam		__ia32_sys_sched_getparam
+156	i386	sched_setscheduler	sys_sched_setscheduler		__ia32_sys_sched_setscheduler
+157	i386	sched_getscheduler	sys_sched_getscheduler		__ia32_sys_sched_getscheduler
+158	i386	sched_yield		sys_sched_yield			__ia32_sys_sched_yield
+159	i386	sched_get_priority_max	sys_sched_get_priority_max	__ia32_sys_sched_get_priority_max
+160	i386	sched_get_priority_min	sys_sched_get_priority_min	__ia32_sys_sched_get_priority_min
+161	i386	sched_rr_get_interval	sys_sched_rr_get_interval	__ia32_compat_sys_sched_rr_get_interval
+162	i386	nanosleep		sys_nanosleep			__ia32_compat_sys_nanosleep
+163	i386	mremap			sys_mremap			__ia32_sys_mremap
+164	i386	setresuid		sys_setresuid16			__ia32_sys_setresuid16
+165	i386	getresuid		sys_getresuid16			__ia32_sys_getresuid16
 166	i386	vm86			sys_vm86			sys_ni_syscall
 167	i386	query_module
-168	i386	poll			sys_poll
+168	i386	poll			sys_poll			__ia32_sys_poll
 169	i386	nfsservctl
-170	i386	setresgid		sys_setresgid16
-171	i386	getresgid		sys_getresgid16
-172	i386	prctl			sys_prctl
+170	i386	setresgid		sys_setresgid16			__ia32_sys_setresgid16
+171	i386	getresgid		sys_getresgid16			__ia32_sys_getresgid16
+172	i386	prctl			sys_prctl			__ia32_sys_prctl
 173	i386	rt_sigreturn		sys_rt_sigreturn		sys32_rt_sigreturn
-174	i386	rt_sigaction		sys_rt_sigaction		compat_sys_rt_sigaction
-175	i386	rt_sigprocmask		sys_rt_sigprocmask
-176	i386	rt_sigpending		sys_rt_sigpending		compat_sys_rt_sigpending
-177	i386	rt_sigtimedwait		sys_rt_sigtimedwait		compat_sys_rt_sigtimedwait
-178	i386	rt_sigqueueinfo		sys_rt_sigqueueinfo		compat_sys_rt_sigqueueinfo
-179	i386	rt_sigsuspend		sys_rt_sigsuspend
-180	i386	pread64			sys_pread64			compat_sys_x86_pread
-181	i386	pwrite64		sys_pwrite64			compat_sys_x86_pwrite
-182	i386	chown			sys_chown16
-183	i386	getcwd			sys_getcwd
-184	i386	capget			sys_capget
-185	i386	capset			sys_capset
-186	i386	sigaltstack		sys_sigaltstack			compat_sys_sigaltstack
-187	i386	sendfile		sys_sendfile			compat_sys_sendfile
+174	i386	rt_sigaction		sys_rt_sigaction		__ia32_compat_sys_rt_sigaction
+175	i386	rt_sigprocmask		sys_rt_sigprocmask		__ia32_sys_rt_sigprocmask
+176	i386	rt_sigpending		sys_rt_sigpending		__ia32_compat_sys_rt_sigpending
+177	i386	rt_sigtimedwait		sys_rt_sigtimedwait		__ia32_compat_sys_rt_sigtimedwait
+178	i386	rt_sigqueueinfo		sys_rt_sigqueueinfo		__ia32_compat_sys_rt_sigqueueinfo
+179	i386	rt_sigsuspend		sys_rt_sigsuspend		__ia32_sys_rt_sigsuspend
+180	i386	pread64			sys_pread64			__ia32_compat_sys_x86_pread
+181	i386	pwrite64		sys_pwrite64			__ia32_compat_sys_x86_pwrite
+182	i386	chown			sys_chown16			__ia32_sys_chown16
+183	i386	getcwd			sys_getcwd			__ia32_sys_getcwd
+184	i386	capget			sys_capget			__ia32_sys_capget
+185	i386	capset			sys_capset			__ia32_sys_capset
+186	i386	sigaltstack		sys_sigaltstack			__ia32_compat_sys_sigaltstack
+187	i386	sendfile		sys_sendfile			__ia32_compat_sys_sendfile
 188	i386	getpmsg
 189	i386	putpmsg
-190	i386	vfork			sys_vfork
-191	i386	ugetrlimit		sys_getrlimit			compat_sys_getrlimit
-192	i386	mmap2			sys_mmap_pgoff
-193	i386	truncate64		sys_truncate64			compat_sys_x86_truncate64
-194	i386	ftruncate64		sys_ftruncate64			compat_sys_x86_ftruncate64
-195	i386	stat64			sys_stat64			compat_sys_x86_stat64
-196	i386	lstat64			sys_lstat64			compat_sys_x86_lstat64
-197	i386	fstat64			sys_fstat64			compat_sys_x86_fstat64
-198	i386	lchown32		sys_lchown
-199	i386	getuid32		sys_getuid
-200	i386	getgid32		sys_getgid
-201	i386	geteuid32		sys_geteuid
-202	i386	getegid32		sys_getegid
-203	i386	setreuid32		sys_setreuid
-204	i386	setregid32		sys_setregid
-205	i386	getgroups32		sys_getgroups
-206	i386	setgroups32		sys_setgroups
-207	i386	fchown32		sys_fchown
-208	i386	setresuid32		sys_setresuid
-209	i386	getresuid32		sys_getresuid
-210	i386	setresgid32		sys_setresgid
-211	i386	getresgid32		sys_getresgid
-212	i386	chown32			sys_chown
-213	i386	setuid32		sys_setuid
-214	i386	setgid32		sys_setgid
-215	i386	setfsuid32		sys_setfsuid
-216	i386	setfsgid32		sys_setfsgid
-217	i386	pivot_root		sys_pivot_root
-218	i386	mincore			sys_mincore
-219	i386	madvise			sys_madvise
-220	i386	getdents64		sys_getdents64
-221	i386	fcntl64			sys_fcntl64			compat_sys_fcntl64
+190	i386	vfork			sys_vfork			__ia32_sys_vfork
+191	i386	ugetrlimit		sys_getrlimit			__ia32_compat_sys_getrlimit
+192	i386	mmap2			sys_mmap_pgoff			__ia32_sys_mmap_pgoff
+193	i386	truncate64		sys_truncate64			__ia32_compat_sys_x86_truncate64
+194	i386	ftruncate64		sys_ftruncate64			__ia32_compat_sys_x86_ftruncate64
+195	i386	stat64			sys_stat64			__ia32_compat_sys_x86_stat64
+196	i386	lstat64			sys_lstat64			__ia32_compat_sys_x86_lstat64
+197	i386	fstat64			sys_fstat64			__ia32_compat_sys_x86_fstat64
+198	i386	lchown32		sys_lchown			__ia32_sys_lchown
+199	i386	getuid32		sys_getuid			__ia32_sys_getuid
+200	i386	getgid32		sys_getgid			__ia32_sys_getgid
+201	i386	geteuid32		sys_geteuid			__ia32_sys_geteuid
+202	i386	getegid32		sys_getegid			__ia32_sys_getegid
+203	i386	setreuid32		sys_setreuid			__ia32_sys_setreuid
+204	i386	setregid32		sys_setregid			__ia32_sys_setregid
+205	i386	getgroups32		sys_getgroups			__ia32_sys_getgroups
+206	i386	setgroups32		sys_setgroups			__ia32_sys_setgroups
+207	i386	fchown32		sys_fchown			__ia32_sys_fchown
+208	i386	setresuid32		sys_setresuid			__ia32_sys_setresuid
+209	i386	getresuid32		sys_getresuid			__ia32_sys_getresuid
+210	i386	setresgid32		sys_setresgid			__ia32_sys_setresgid
+211	i386	getresgid32		sys_getresgid			__ia32_sys_getresgid
+212	i386	chown32			sys_chown			__ia32_sys_chown
+213	i386	setuid32		sys_setuid			__ia32_sys_setuid
+214	i386	setgid32		sys_setgid			__ia32_sys_setgid
+215	i386	setfsuid32		sys_setfsuid			__ia32_sys_setfsuid
+216	i386	setfsgid32		sys_setfsgid			__ia32_sys_setfsgid
+217	i386	pivot_root		sys_pivot_root			__ia32_sys_pivot_root
+218	i386	mincore			sys_mincore			__ia32_sys_mincore
+219	i386	madvise			sys_madvise			__ia32_sys_madvise
+220	i386	getdents64		sys_getdents64			__ia32_sys_getdents64
+221	i386	fcntl64			sys_fcntl64			__ia32_compat_sys_fcntl64
 # 222 is unused
 # 223 is unused
-224	i386	gettid			sys_gettid
-225	i386	readahead		sys_readahead			compat_sys_x86_readahead
-226	i386	setxattr		sys_setxattr
-227	i386	lsetxattr		sys_lsetxattr
-228	i386	fsetxattr		sys_fsetxattr
-229	i386	getxattr		sys_getxattr
-230	i386	lgetxattr		sys_lgetxattr
-231	i386	fgetxattr		sys_fgetxattr
-232	i386	listxattr		sys_listxattr
-233	i386	llistxattr		sys_llistxattr
-234	i386	flistxattr		sys_flistxattr
-235	i386	removexattr		sys_removexattr
-236	i386	lremovexattr		sys_lremovexattr
-237	i386	fremovexattr		sys_fremovexattr
-238	i386	tkill			sys_tkill
-239	i386	sendfile64		sys_sendfile64
-240	i386	futex			sys_futex			compat_sys_futex
-241	i386	sched_setaffinity	sys_sched_setaffinity		compat_sys_sched_setaffinity
-242	i386	sched_getaffinity	sys_sched_getaffinity		compat_sys_sched_getaffinity
-243	i386	set_thread_area		sys_set_thread_area
-244	i386	get_thread_area		sys_get_thread_area
-245	i386	io_setup		sys_io_setup			compat_sys_io_setup
-246	i386	io_destroy		sys_io_destroy
-247	i386	io_getevents		sys_io_getevents		compat_sys_io_getevents
-248	i386	io_submit		sys_io_submit			compat_sys_io_submit
-249	i386	io_cancel		sys_io_cancel
-250	i386	fadvise64		sys_fadvise64			compat_sys_x86_fadvise64
+224	i386	gettid			sys_gettid			__ia32_sys_gettid
+225	i386	readahead		sys_readahead			__ia32_compat_sys_x86_readahead
+226	i386	setxattr		sys_setxattr			__ia32_sys_setxattr
+227	i386	lsetxattr		sys_lsetxattr			__ia32_sys_lsetxattr
+228	i386	fsetxattr		sys_fsetxattr			__ia32_sys_fsetxattr
+229	i386	getxattr		sys_getxattr			__ia32_sys_getxattr
+230	i386	lgetxattr		sys_lgetxattr			__ia32_sys_lgetxattr
+231	i386	fgetxattr		sys_fgetxattr			__ia32_sys_fgetxattr
+232	i386	listxattr		sys_listxattr			__ia32_sys_listxattr
+233	i386	llistxattr		sys_llistxattr			__ia32_sys_llistxattr
+234	i386	flistxattr		sys_flistxattr			__ia32_sys_flistxattr
+235	i386	removexattr		sys_removexattr			__ia32_sys_removexattr
+236	i386	lremovexattr		sys_lremovexattr		__ia32_sys_lremovexattr
+237	i386	fremovexattr		sys_fremovexattr		__ia32_sys_fremovexattr
+238	i386	tkill			sys_tkill			__ia32_sys_tkill
+239	i386	sendfile64		sys_sendfile64			__ia32_sys_sendfile64
+240	i386	futex			sys_futex			__ia32_compat_sys_futex
+241	i386	sched_setaffinity	sys_sched_setaffinity		__ia32_compat_sys_sched_setaffinity
+242	i386	sched_getaffinity	sys_sched_getaffinity		__ia32_compat_sys_sched_getaffinity
+243	i386	set_thread_area		sys_set_thread_area		__ia32_sys_set_thread_area
+244	i386	get_thread_area		sys_get_thread_area		__ia32_sys_get_thread_area
+245	i386	io_setup		sys_io_setup			__ia32_compat_sys_io_setup
+246	i386	io_destroy		sys_io_destroy			__ia32_sys_io_destroy
+247	i386	io_getevents		sys_io_getevents		__ia32_compat_sys_io_getevents
+248	i386	io_submit		sys_io_submit			__ia32_compat_sys_io_submit
+249	i386	io_cancel		sys_io_cancel			__ia32_sys_io_cancel
+250	i386	fadvise64		sys_fadvise64			__ia32_compat_sys_x86_fadvise64
 # 251 is available for reuse (was briefly sys_set_zone_reclaim)
-252	i386	exit_group		sys_exit_group
-253	i386	lookup_dcookie		sys_lookup_dcookie		compat_sys_lookup_dcookie
-254	i386	epoll_create		sys_epoll_create
-255	i386	epoll_ctl		sys_epoll_ctl
-256	i386	epoll_wait		sys_epoll_wait
-257	i386	remap_file_pages	sys_remap_file_pages
-258	i386	set_tid_address		sys_set_tid_address
-259	i386	timer_create		sys_timer_create		compat_sys_timer_create
-260	i386	timer_settime		sys_timer_settime		compat_sys_timer_settime
-261	i386	timer_gettime		sys_timer_gettime		compat_sys_timer_gettime
-262	i386	timer_getoverrun	sys_timer_getoverrun
-263	i386	timer_delete		sys_timer_delete
-264	i386	clock_settime		sys_clock_settime		compat_sys_clock_settime
-265	i386	clock_gettime		sys_clock_gettime		compat_sys_clock_gettime
-266	i386	clock_getres		sys_clock_getres		compat_sys_clock_getres
-267	i386	clock_nanosleep		sys_clock_nanosleep		compat_sys_clock_nanosleep
-268	i386	statfs64		sys_statfs64			compat_sys_statfs64
-269	i386	fstatfs64		sys_fstatfs64			compat_sys_fstatfs64
-270	i386	tgkill			sys_tgkill
-271	i386	utimes			sys_utimes			compat_sys_utimes
-272	i386	fadvise64_64		sys_fadvise64_64		compat_sys_x86_fadvise64_64
+252	i386	exit_group		sys_exit_group			__ia32_sys_exit_group
+253	i386	lookup_dcookie		sys_lookup_dcookie		__ia32_compat_sys_lookup_dcookie
+254	i386	epoll_create		sys_epoll_create		__ia32_sys_epoll_create
+255	i386	epoll_ctl		sys_epoll_ctl			__ia32_sys_epoll_ctl
+256	i386	epoll_wait		sys_epoll_wait			__ia32_sys_epoll_wait
+257	i386	remap_file_pages	sys_remap_file_pages		__ia32_sys_remap_file_pages
+258	i386	set_tid_address		sys_set_tid_address		__ia32_sys_set_tid_address
+259	i386	timer_create		sys_timer_create		__ia32_compat_sys_timer_create
+260	i386	timer_settime		sys_timer_settime		__ia32_compat_sys_timer_settime
+261	i386	timer_gettime		sys_timer_gettime		__ia32_compat_sys_timer_gettime
+262	i386	timer_getoverrun	sys_timer_getoverrun		__ia32_sys_timer_getoverrun
+263	i386	timer_delete		sys_timer_delete		__ia32_sys_timer_delete
+264	i386	clock_settime		sys_clock_settime		__ia32_compat_sys_clock_settime
+265	i386	clock_gettime		sys_clock_gettime		__ia32_compat_sys_clock_gettime
+266	i386	clock_getres		sys_clock_getres		__ia32_compat_sys_clock_getres
+267	i386	clock_nanosleep		sys_clock_nanosleep		__ia32_compat_sys_clock_nanosleep
+268	i386	statfs64		sys_statfs64			__ia32_compat_sys_statfs64
+269	i386	fstatfs64		sys_fstatfs64			__ia32_compat_sys_fstatfs64
+270	i386	tgkill			sys_tgkill			__ia32_sys_tgkill
+271	i386	utimes			sys_utimes			__ia32_compat_sys_utimes
+272	i386	fadvise64_64		sys_fadvise64_64		__ia32_compat_sys_x86_fadvise64_64
 273	i386	vserver
-274	i386	mbind			sys_mbind
-275	i386	get_mempolicy		sys_get_mempolicy		compat_sys_get_mempolicy
-276	i386	set_mempolicy		sys_set_mempolicy
-277	i386	mq_open			sys_mq_open			compat_sys_mq_open
-278	i386	mq_unlink		sys_mq_unlink
-279	i386	mq_timedsend		sys_mq_timedsend		compat_sys_mq_timedsend
-280	i386	mq_timedreceive		sys_mq_timedreceive		compat_sys_mq_timedreceive
-281	i386	mq_notify		sys_mq_notify			compat_sys_mq_notify
-282	i386	mq_getsetattr		sys_mq_getsetattr		compat_sys_mq_getsetattr
-283	i386	kexec_load		sys_kexec_load			compat_sys_kexec_load
-284	i386	waitid			sys_waitid			compat_sys_waitid
+274	i386	mbind			sys_mbind			__ia32_sys_mbind
+275	i386	get_mempolicy		sys_get_mempolicy		__ia32_compat_sys_get_mempolicy
+276	i386	set_mempolicy		sys_set_mempolicy		__ia32_sys_set_mempolicy
+277	i386	mq_open			sys_mq_open			__ia32_compat_sys_mq_open
+278	i386	mq_unlink		sys_mq_unlink			__ia32_sys_mq_unlink
+279	i386	mq_timedsend		sys_mq_timedsend		__ia32_compat_sys_mq_timedsend
+280	i386	mq_timedreceive		sys_mq_timedreceive		__ia32_compat_sys_mq_timedreceive
+281	i386	mq_notify		sys_mq_notify			__ia32_compat_sys_mq_notify
+282	i386	mq_getsetattr		sys_mq_getsetattr		__ia32_compat_sys_mq_getsetattr
+283	i386	kexec_load		sys_kexec_load			__ia32_compat_sys_kexec_load
+284	i386	waitid			sys_waitid			__ia32_compat_sys_waitid
 # 285 sys_setaltroot
-286	i386	add_key			sys_add_key
-287	i386	request_key		sys_request_key
-288	i386	keyctl			sys_keyctl			compat_sys_keyctl
-289	i386	ioprio_set		sys_ioprio_set
-290	i386	ioprio_get		sys_ioprio_get
-291	i386	inotify_init		sys_inotify_init
-292	i386	inotify_add_watch	sys_inotify_add_watch
-293	i386	inotify_rm_watch	sys_inotify_rm_watch
-294	i386	migrate_pages		sys_migrate_pages
-295	i386	openat			sys_openat			compat_sys_openat
-296	i386	mkdirat			sys_mkdirat
-297	i386	mknodat			sys_mknodat
-298	i386	fchownat		sys_fchownat
-299	i386	futimesat		sys_futimesat			compat_sys_futimesat
-300	i386	fstatat64		sys_fstatat64			compat_sys_x86_fstatat
-301	i386	unlinkat		sys_unlinkat
-302	i386	renameat		sys_renameat
-303	i386	linkat			sys_linkat
-304	i386	symlinkat		sys_symlinkat
-305	i386	readlinkat		sys_readlinkat
-306	i386	fchmodat		sys_fchmodat
-307	i386	faccessat		sys_faccessat
-308	i386	pselect6		sys_pselect6			compat_sys_pselect6
-309	i386	ppoll			sys_ppoll			compat_sys_ppoll
-310	i386	unshare			sys_unshare
-311	i386	set_robust_list		sys_set_robust_list		compat_sys_set_robust_list
-312	i386	get_robust_list		sys_get_robust_list		compat_sys_get_robust_list
-313	i386	splice			sys_splice
-314	i386	sync_file_range		sys_sync_file_range		compat_sys_x86_sync_file_range
-315	i386	tee			sys_tee
-316	i386	vmsplice		sys_vmsplice			compat_sys_vmsplice
-317	i386	move_pages		sys_move_pages			compat_sys_move_pages
-318	i386	getcpu			sys_getcpu
-319	i386	epoll_pwait		sys_epoll_pwait
-320	i386	utimensat		sys_utimensat			compat_sys_utimensat
-321	i386	signalfd		sys_signalfd			compat_sys_signalfd
-322	i386	timerfd_create		sys_timerfd_create
-323	i386	eventfd			sys_eventfd
-324	i386	fallocate		sys_fallocate			compat_sys_x86_fallocate
-325	i386	timerfd_settime		sys_timerfd_settime		compat_sys_timerfd_settime
-326	i386	timerfd_gettime		sys_timerfd_gettime		compat_sys_timerfd_gettime
-327	i386	signalfd4		sys_signalfd4			compat_sys_signalfd4
-328	i386	eventfd2		sys_eventfd2
-329	i386	epoll_create1		sys_epoll_create1
-330	i386	dup3			sys_dup3
-331	i386	pipe2			sys_pipe2
-332	i386	inotify_init1		sys_inotify_init1
-333	i386	preadv			sys_preadv			compat_sys_preadv
-334	i386	pwritev			sys_pwritev			compat_sys_pwritev
-335	i386	rt_tgsigqueueinfo	sys_rt_tgsigqueueinfo		compat_sys_rt_tgsigqueueinfo
-336	i386	perf_event_open		sys_perf_event_open
-337	i386	recvmmsg		sys_recvmmsg			compat_sys_recvmmsg
-338	i386	fanotify_init		sys_fanotify_init
-339	i386	fanotify_mark		sys_fanotify_mark		compat_sys_fanotify_mark
-340	i386	prlimit64		sys_prlimit64
-341	i386	name_to_handle_at	sys_name_to_handle_at
-342	i386	open_by_handle_at	sys_open_by_handle_at		compat_sys_open_by_handle_at
-343	i386	clock_adjtime		sys_clock_adjtime		compat_sys_clock_adjtime
-344	i386	syncfs			sys_syncfs
-345	i386	sendmmsg		sys_sendmmsg			compat_sys_sendmmsg
-346	i386	setns			sys_setns
-347	i386	process_vm_readv	sys_process_vm_readv		compat_sys_process_vm_readv
-348	i386	process_vm_writev	sys_process_vm_writev		compat_sys_process_vm_writev
-349	i386	kcmp			sys_kcmp
-350	i386	finit_module		sys_finit_module
-351	i386	sched_setattr		sys_sched_setattr
-352	i386	sched_getattr		sys_sched_getattr
-353	i386	renameat2		sys_renameat2
-354	i386	seccomp			sys_seccomp
-355	i386	getrandom		sys_getrandom
-356	i386	memfd_create		sys_memfd_create
-357	i386	bpf			sys_bpf
-358	i386	execveat		sys_execveat			compat_sys_execveat
-359	i386	socket			sys_socket
-360	i386	socketpair		sys_socketpair
-361	i386	bind			sys_bind
-362	i386	connect			sys_connect
-363	i386	listen			sys_listen
-364	i386	accept4			sys_accept4
-365	i386	getsockopt		sys_getsockopt			compat_sys_getsockopt
-366	i386	setsockopt		sys_setsockopt			compat_sys_setsockopt
-367	i386	getsockname		sys_getsockname
-368	i386	getpeername		sys_getpeername
-369	i386	sendto			sys_sendto
-370	i386	sendmsg			sys_sendmsg			compat_sys_sendmsg
-371	i386	recvfrom		sys_recvfrom			compat_sys_recvfrom
-372	i386	recvmsg			sys_recvmsg			compat_sys_recvmsg
-373	i386	shutdown		sys_shutdown
-374	i386	userfaultfd		sys_userfaultfd
-375	i386	membarrier		sys_membarrier
-376	i386	mlock2			sys_mlock2
-377	i386	copy_file_range		sys_copy_file_range
-378	i386	preadv2			sys_preadv2			compat_sys_preadv2
-379	i386	pwritev2		sys_pwritev2			compat_sys_pwritev2
-380	i386	pkey_mprotect		sys_pkey_mprotect
-381	i386	pkey_alloc		sys_pkey_alloc
-382	i386	pkey_free		sys_pkey_free
-383	i386	statx			sys_statx
-384	i386	arch_prctl		sys_arch_prctl			compat_sys_arch_prctl
+286	i386	add_key			sys_add_key			__ia32_sys_add_key
+287	i386	request_key		sys_request_key			__ia32_sys_request_key
+288	i386	keyctl			sys_keyctl			__ia32_compat_sys_keyctl
+289	i386	ioprio_set		sys_ioprio_set			__ia32_sys_ioprio_set
+290	i386	ioprio_get		sys_ioprio_get			__ia32_sys_ioprio_get
+291	i386	inotify_init		sys_inotify_init		__ia32_sys_inotify_init
+292	i386	inotify_add_watch	sys_inotify_add_watch		__ia32_sys_inotify_add_watch
+293	i386	inotify_rm_watch	sys_inotify_rm_watch		__ia32_sys_inotify_rm_watch
+294	i386	migrate_pages		sys_migrate_pages		__ia32_sys_migrate_pages
+295	i386	openat			sys_openat			__ia32_compat_sys_openat
+296	i386	mkdirat			sys_mkdirat			__ia32_sys_mkdirat
+297	i386	mknodat			sys_mknodat			__ia32_sys_mknodat
+298	i386	fchownat		sys_fchownat			__ia32_sys_fchownat
+299	i386	futimesat		sys_futimesat			__ia32_compat_sys_futimesat
+300	i386	fstatat64		sys_fstatat64			__ia32_compat_sys_x86_fstatat
+301	i386	unlinkat		sys_unlinkat			__ia32_sys_unlinkat
+302	i386	renameat		sys_renameat			__ia32_sys_renameat
+303	i386	linkat			sys_linkat			__ia32_sys_linkat
+304	i386	symlinkat		sys_symlinkat			__ia32_sys_symlinkat
+305	i386	readlinkat		sys_readlinkat			__ia32_sys_readlinkat
+306	i386	fchmodat		sys_fchmodat			__ia32_sys_fchmodat
+307	i386	faccessat		sys_faccessat			__ia32_sys_faccessat
+308	i386	pselect6		sys_pselect6			__ia32_compat_sys_pselect6
+309	i386	ppoll			sys_ppoll			__ia32_compat_sys_ppoll
+310	i386	unshare			sys_unshare			__ia32_sys_unshare
+311	i386	set_robust_list		sys_set_robust_list		__ia32_compat_sys_set_robust_list
+312	i386	get_robust_list		sys_get_robust_list		__ia32_compat_sys_get_robust_list
+313	i386	splice			sys_splice			__ia32_sys_splice
+314	i386	sync_file_range		sys_sync_file_range		__ia32_compat_sys_x86_sync_file_range
+315	i386	tee			sys_tee				__ia32_sys_tee
+316	i386	vmsplice		sys_vmsplice			__ia32_compat_sys_vmsplice
+317	i386	move_pages		sys_move_pages			__ia32_compat_sys_move_pages
+318	i386	getcpu			sys_getcpu			__ia32_sys_getcpu
+319	i386	epoll_pwait		sys_epoll_pwait			__ia32_sys_epoll_pwait
+320	i386	utimensat		sys_utimensat			__ia32_compat_sys_utimensat
+321	i386	signalfd		sys_signalfd			__ia32_compat_sys_signalfd
+322	i386	timerfd_create		sys_timerfd_create		__ia32_sys_timerfd_create
+323	i386	eventfd			sys_eventfd			__ia32_sys_eventfd
+324	i386	fallocate		sys_fallocate			__ia32_compat_sys_x86_fallocate
+325	i386	timerfd_settime		sys_timerfd_settime		__ia32_compat_sys_timerfd_settime
+326	i386	timerfd_gettime		sys_timerfd_gettime		__ia32_compat_sys_timerfd_gettime
+327	i386	signalfd4		sys_signalfd4			__ia32_compat_sys_signalfd4
+328	i386	eventfd2		sys_eventfd2			__ia32_sys_eventfd2
+329	i386	epoll_create1		sys_epoll_create1		__ia32_sys_epoll_create1
+330	i386	dup3			sys_dup3			__ia32_sys_dup3
+331	i386	pipe2			sys_pipe2			__ia32_sys_pipe2
+332	i386	inotify_init1		sys_inotify_init1		__ia32_sys_inotify_init1
+333	i386	preadv			sys_preadv			__ia32_compat_sys_preadv
+334	i386	pwritev			sys_pwritev			__ia32_compat_sys_pwritev
+335	i386	rt_tgsigqueueinfo	sys_rt_tgsigqueueinfo		__ia32_compat_sys_rt_tgsigqueueinfo
+336	i386	perf_event_open		sys_perf_event_open		__ia32_sys_perf_event_open
+337	i386	recvmmsg		sys_recvmmsg			__ia32_compat_sys_recvmmsg
+338	i386	fanotify_init		sys_fanotify_init		__ia32_sys_fanotify_init
+339	i386	fanotify_mark		sys_fanotify_mark		__ia32_compat_sys_fanotify_mark
+340	i386	prlimit64		sys_prlimit64			__ia32_sys_prlimit64
+341	i386	name_to_handle_at	sys_name_to_handle_at		__ia32_sys_name_to_handle_at
+342	i386	open_by_handle_at	sys_open_by_handle_at		__ia32_compat_sys_open_by_handle_at
+343	i386	clock_adjtime		sys_clock_adjtime		__ia32_compat_sys_clock_adjtime
+344	i386	syncfs			sys_syncfs			__ia32_sys_syncfs
+345	i386	sendmmsg		sys_sendmmsg			__ia32_compat_sys_sendmmsg
+346	i386	setns			sys_setns			__ia32_sys_setns
+347	i386	process_vm_readv	sys_process_vm_readv		__ia32_compat_sys_process_vm_readv
+348	i386	process_vm_writev	sys_process_vm_writev		__ia32_compat_sys_process_vm_writev
+349	i386	kcmp			sys_kcmp			__ia32_sys_kcmp
+350	i386	finit_module		sys_finit_module		__ia32_sys_finit_module
+351	i386	sched_setattr		sys_sched_setattr		__ia32_sys_sched_setattr
+352	i386	sched_getattr		sys_sched_getattr		__ia32_sys_sched_getattr
+353	i386	renameat2		sys_renameat2			__ia32_sys_renameat2
+354	i386	seccomp			sys_seccomp			__ia32_sys_seccomp
+355	i386	getrandom		sys_getrandom			__ia32_sys_getrandom
+356	i386	memfd_create		sys_memfd_create		__ia32_sys_memfd_create
+357	i386	bpf			sys_bpf				__ia32_sys_bpf
+358	i386	execveat		sys_execveat			__ia32_compat_sys_execveat
+359	i386	socket			sys_socket			__ia32_sys_socket
+360	i386	socketpair		sys_socketpair			__ia32_sys_socketpair
+361	i386	bind			sys_bind			__ia32_sys_bind
+362	i386	connect			sys_connect			__ia32_sys_connect
+363	i386	listen			sys_listen			__ia32_sys_listen
+364	i386	accept4			sys_accept4			__ia32_sys_accept4
+365	i386	getsockopt		sys_getsockopt			__ia32_compat_sys_getsockopt
+366	i386	setsockopt		sys_setsockopt			__ia32_compat_sys_setsockopt
+367	i386	getsockname		sys_getsockname			__ia32_sys_getsockname
+368	i386	getpeername		sys_getpeername			__ia32_sys_getpeername
+369	i386	sendto			sys_sendto			__ia32_sys_sendto
+370	i386	sendmsg			sys_sendmsg			__ia32_compat_sys_sendmsg
+371	i386	recvfrom		sys_recvfrom			__ia32_compat_sys_recvfrom
+372	i386	recvmsg			sys_recvmsg			__ia32_compat_sys_recvmsg
+373	i386	shutdown		sys_shutdown			__ia32_sys_shutdown
+374	i386	userfaultfd		sys_userfaultfd			__ia32_sys_userfaultfd
+375	i386	membarrier		sys_membarrier			__ia32_sys_membarrier
+376	i386	mlock2			sys_mlock2			__ia32_sys_mlock2
+377	i386	copy_file_range		sys_copy_file_range		__ia32_sys_copy_file_range
+378	i386	preadv2			sys_preadv2			__ia32_compat_sys_preadv2
+379	i386	pwritev2		sys_pwritev2			__ia32_compat_sys_pwritev2
+380	i386	pkey_mprotect		sys_pkey_mprotect		__ia32_sys_pkey_mprotect
+381	i386	pkey_alloc		sys_pkey_alloc			__ia32_sys_pkey_alloc
+382	i386	pkey_free		sys_pkey_free			__ia32_sys_pkey_free
+383	i386	statx			sys_statx			__ia32_sys_statx
+384	i386	arch_prctl		sys_arch_prctl			__ia32_compat_sys_arch_prctl
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 5aef183e2f85..4dfe42666d0c 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -4,379 +4,383 @@
 # The format is:
 # <number> <abi> <name> <entry point>
 #
+# The __x64_sys_*() stubs are created on-the-fly for sys_*() system calls
+#
 # The abi is "common", "64" or "x32" for this file.
 #
-0	common	read			sys_read
-1	common	write			sys_write
-2	common	open			sys_open
-3	common	close			sys_close
-4	common	stat			sys_newstat
-5	common	fstat			sys_newfstat
-6	common	lstat			sys_newlstat
-7	common	poll			sys_poll
-8	common	lseek			sys_lseek
-9	common	mmap			sys_mmap
-10	common	mprotect		sys_mprotect
-11	common	munmap			sys_munmap
-12	common	brk			sys_brk
-13	64	rt_sigaction		sys_rt_sigaction
-14	common	rt_sigprocmask		sys_rt_sigprocmask
-15	64	rt_sigreturn		sys_rt_sigreturn/ptregs
-16	64	ioctl			sys_ioctl
-17	common	pread64			sys_pread64
-18	common	pwrite64		sys_pwrite64
-19	64	readv			sys_readv
-20	64	writev			sys_writev
-21	common	access			sys_access
-22	common	pipe			sys_pipe
-23	common	select			sys_select
-24	common	sched_yield		sys_sched_yield
-25	common	mremap			sys_mremap
-26	common	msync			sys_msync
-27	common	mincore			sys_mincore
-28	common	madvise			sys_madvise
-29	common	shmget			sys_shmget
-30	common	shmat			sys_shmat
-31	common	shmctl			sys_shmctl
-32	common	dup			sys_dup
-33	common	dup2			sys_dup2
-34	common	pause			sys_pause
-35	common	nanosleep		sys_nanosleep
-36	common	getitimer		sys_getitimer
-37	common	alarm			sys_alarm
-38	common	setitimer		sys_setitimer
-39	common	getpid			sys_getpid
-40	common	sendfile		sys_sendfile64
-41	common	socket			sys_socket
-42	common	connect			sys_connect
-43	common	accept			sys_accept
-44	common	sendto			sys_sendto
-45	64	recvfrom		sys_recvfrom
-46	64	sendmsg			sys_sendmsg
-47	64	recvmsg			sys_recvmsg
-48	common	shutdown		sys_shutdown
-49	common	bind			sys_bind
-50	common	listen			sys_listen
-51	common	getsockname		sys_getsockname
-52	common	getpeername		sys_getpeername
-53	common	socketpair		sys_socketpair
-54	64	setsockopt		sys_setsockopt
-55	64	getsockopt		sys_getsockopt
-56	common	clone			sys_clone/ptregs
-57	common	fork			sys_fork/ptregs
-58	common	vfork			sys_vfork/ptregs
-59	64	execve			sys_execve/ptregs
-60	common	exit			sys_exit
-61	common	wait4			sys_wait4
-62	common	kill			sys_kill
-63	common	uname			sys_newuname
-64	common	semget			sys_semget
-65	common	semop			sys_semop
-66	common	semctl			sys_semctl
-67	common	shmdt			sys_shmdt
-68	common	msgget			sys_msgget
-69	common	msgsnd			sys_msgsnd
-70	common	msgrcv			sys_msgrcv
-71	common	msgctl			sys_msgctl
-72	common	fcntl			sys_fcntl
-73	common	flock			sys_flock
-74	common	fsync			sys_fsync
-75	common	fdatasync		sys_fdatasync
-76	common	truncate		sys_truncate
-77	common	ftruncate		sys_ftruncate
-78	common	getdents		sys_getdents
-79	common	getcwd			sys_getcwd
-80	common	chdir			sys_chdir
-81	common	fchdir			sys_fchdir
-82	common	rename			sys_rename
-83	common	mkdir			sys_mkdir
-84	common	rmdir			sys_rmdir
-85	common	creat			sys_creat
-86	common	link			sys_link
-87	common	unlink			sys_unlink
-88	common	symlink			sys_symlink
-89	common	readlink		sys_readlink
-90	common	chmod			sys_chmod
-91	common	fchmod			sys_fchmod
-92	common	chown			sys_chown
-93	common	fchown			sys_fchown
-94	common	lchown			sys_lchown
-95	common	umask			sys_umask
-96	common	gettimeofday		sys_gettimeofday
-97	common	getrlimit		sys_getrlimit
-98	common	getrusage		sys_getrusage
-99	common	sysinfo			sys_sysinfo
-100	common	times			sys_times
-101	64	ptrace			sys_ptrace
-102	common	getuid			sys_getuid
-103	common	syslog			sys_syslog
-104	common	getgid			sys_getgid
-105	common	setuid			sys_setuid
-106	common	setgid			sys_setgid
-107	common	geteuid			sys_geteuid
-108	common	getegid			sys_getegid
-109	common	setpgid			sys_setpgid
-110	common	getppid			sys_getppid
-111	common	getpgrp			sys_getpgrp
-112	common	setsid			sys_setsid
-113	common	setreuid		sys_setreuid
-114	common	setregid		sys_setregid
-115	common	getgroups		sys_getgroups
-116	common	setgroups		sys_setgroups
-117	common	setresuid		sys_setresuid
-118	common	getresuid		sys_getresuid
-119	common	setresgid		sys_setresgid
-120	common	getresgid		sys_getresgid
-121	common	getpgid			sys_getpgid
-122	common	setfsuid		sys_setfsuid
-123	common	setfsgid		sys_setfsgid
-124	common	getsid			sys_getsid
-125	common	capget			sys_capget
-126	common	capset			sys_capset
-127	64	rt_sigpending		sys_rt_sigpending
-128	64	rt_sigtimedwait		sys_rt_sigtimedwait
-129	64	rt_sigqueueinfo		sys_rt_sigqueueinfo
-130	common	rt_sigsuspend		sys_rt_sigsuspend
-131	64	sigaltstack		sys_sigaltstack
-132	common	utime			sys_utime
-133	common	mknod			sys_mknod
+0	common	read			__x64_sys_read
+1	common	write			__x64_sys_write
+2	common	open			__x64_sys_open
+3	common	close			__x64_sys_close
+4	common	stat			__x64_sys_newstat
+5	common	fstat			__x64_sys_newfstat
+6	common	lstat			__x64_sys_newlstat
+7	common	poll			__x64_sys_poll
+8	common	lseek			__x64_sys_lseek
+9	common	mmap			__x64_sys_mmap
+10	common	mprotect		__x64_sys_mprotect
+11	common	munmap			__x64_sys_munmap
+12	common	brk			__x64_sys_brk
+13	64	rt_sigaction		__x64_sys_rt_sigaction
+14	common	rt_sigprocmask		__x64_sys_rt_sigprocmask
+15	64	rt_sigreturn		__x64_sys_rt_sigreturn/ptregs
+16	64	ioctl			__x64_sys_ioctl
+17	common	pread64			__x64_sys_pread64
+18	common	pwrite64		__x64_sys_pwrite64
+19	64	readv			__x64_sys_readv
+20	64	writev			__x64_sys_writev
+21	common	access			__x64_sys_access
+22	common	pipe			__x64_sys_pipe
+23	common	select			__x64_sys_select
+24	common	sched_yield		__x64_sys_sched_yield
+25	common	mremap			__x64_sys_mremap
+26	common	msync			__x64_sys_msync
+27	common	mincore			__x64_sys_mincore
+28	common	madvise			__x64_sys_madvise
+29	common	shmget			__x64_sys_shmget
+30	common	shmat			__x64_sys_shmat
+31	common	shmctl			__x64_sys_shmctl
+32	common	dup			__x64_sys_dup
+33	common	dup2			__x64_sys_dup2
+34	common	pause			__x64_sys_pause
+35	common	nanosleep		__x64_sys_nanosleep
+36	common	getitimer		__x64_sys_getitimer
+37	common	alarm			__x64_sys_alarm
+38	common	setitimer		__x64_sys_setitimer
+39	common	getpid			__x64_sys_getpid
+40	common	sendfile		__x64_sys_sendfile64
+41	common	socket			__x64_sys_socket
+42	common	connect			__x64_sys_connect
+43	common	accept			__x64_sys_accept
+44	common	sendto			__x64_sys_sendto
+45	64	recvfrom		__x64_sys_recvfrom
+46	64	sendmsg			__x64_sys_sendmsg
+47	64	recvmsg			__x64_sys_recvmsg
+48	common	shutdown		__x64_sys_shutdown
+49	common	bind			__x64_sys_bind
+50	common	listen			__x64_sys_listen
+51	common	getsockname		__x64_sys_getsockname
+52	common	getpeername		__x64_sys_getpeername
+53	common	socketpair		__x64_sys_socketpair
+54	64	setsockopt		__x64_sys_setsockopt
+55	64	getsockopt		__x64_sys_getsockopt
+56	common	clone			__x64_sys_clone/ptregs
+57	common	fork			__x64_sys_fork/ptregs
+58	common	vfork			__x64_sys_vfork/ptregs
+59	64	execve			__x64_sys_execve/ptregs
+60	common	exit			__x64_sys_exit
+61	common	wait4			__x64_sys_wait4
+62	common	kill			__x64_sys_kill
+63	common	uname			__x64_sys_newuname
+64	common	semget			__x64_sys_semget
+65	common	semop			__x64_sys_semop
+66	common	semctl			__x64_sys_semctl
+67	common	shmdt			__x64_sys_shmdt
+68	common	msgget			__x64_sys_msgget
+69	common	msgsnd			__x64_sys_msgsnd
+70	common	msgrcv			__x64_sys_msgrcv
+71	common	msgctl			__x64_sys_msgctl
+72	common	fcntl			__x64_sys_fcntl
+73	common	flock			__x64_sys_flock
+74	common	fsync			__x64_sys_fsync
+75	common	fdatasync		__x64_sys_fdatasync
+76	common	truncate		__x64_sys_truncate
+77	common	ftruncate		__x64_sys_ftruncate
+78	common	getdents		__x64_sys_getdents
+79	common	getcwd			__x64_sys_getcwd
+80	common	chdir			__x64_sys_chdir
+81	common	fchdir			__x64_sys_fchdir
+82	common	rename			__x64_sys_rename
+83	common	mkdir			__x64_sys_mkdir
+84	common	rmdir			__x64_sys_rmdir
+85	common	creat			__x64_sys_creat
+86	common	link			__x64_sys_link
+87	common	unlink			__x64_sys_unlink
+88	common	symlink			__x64_sys_symlink
+89	common	readlink		__x64_sys_readlink
+90	common	chmod			__x64_sys_chmod
+91	common	fchmod			__x64_sys_fchmod
+92	common	chown			__x64_sys_chown
+93	common	fchown			__x64_sys_fchown
+94	common	lchown			__x64_sys_lchown
+95	common	umask			__x64_sys_umask
+96	common	gettimeofday		__x64_sys_gettimeofday
+97	common	getrlimit		__x64_sys_getrlimit
+98	common	getrusage		__x64_sys_getrusage
+99	common	sysinfo			__x64_sys_sysinfo
+100	common	times			__x64_sys_times
+101	64	ptrace			__x64_sys_ptrace
+102	common	getuid			__x64_sys_getuid
+103	common	syslog			__x64_sys_syslog
+104	common	getgid			__x64_sys_getgid
+105	common	setuid			__x64_sys_setuid
+106	common	setgid			__x64_sys_setgid
+107	common	geteuid			__x64_sys_geteuid
+108	common	getegid			__x64_sys_getegid
+109	common	setpgid			__x64_sys_setpgid
+110	common	getppid			__x64_sys_getppid
+111	common	getpgrp			__x64_sys_getpgrp
+112	common	setsid			__x64_sys_setsid
+113	common	setreuid		__x64_sys_setreuid
+114	common	setregid		__x64_sys_setregid
+115	common	getgroups		__x64_sys_getgroups
+116	common	setgroups		__x64_sys_setgroups
+117	common	setresuid		__x64_sys_setresuid
+118	common	getresuid		__x64_sys_getresuid
+119	common	setresgid		__x64_sys_setresgid
+120	common	getresgid		__x64_sys_getresgid
+121	common	getpgid			__x64_sys_getpgid
+122	common	setfsuid		__x64_sys_setfsuid
+123	common	setfsgid		__x64_sys_setfsgid
+124	common	getsid			__x64_sys_getsid
+125	common	capget			__x64_sys_capget
+126	common	capset			__x64_sys_capset
+127	64	rt_sigpending		__x64_sys_rt_sigpending
+128	64	rt_sigtimedwait		__x64_sys_rt_sigtimedwait
+129	64	rt_sigqueueinfo		__x64_sys_rt_sigqueueinfo
+130	common	rt_sigsuspend		__x64_sys_rt_sigsuspend
+131	64	sigaltstack		__x64_sys_sigaltstack
+132	common	utime			__x64_sys_utime
+133	common	mknod			__x64_sys_mknod
 134	64	uselib
-135	common	personality		sys_personality
-136	common	ustat			sys_ustat
-137	common	statfs			sys_statfs
-138	common	fstatfs			sys_fstatfs
-139	common	sysfs			sys_sysfs
-140	common	getpriority		sys_getpriority
-141	common	setpriority		sys_setpriority
-142	common	sched_setparam		sys_sched_setparam
-143	common	sched_getparam		sys_sched_getparam
-144	common	sched_setscheduler	sys_sched_setscheduler
-145	common	sched_getscheduler	sys_sched_getscheduler
-146	common	sched_get_priority_max	sys_sched_get_priority_max
-147	common	sched_get_priority_min	sys_sched_get_priority_min
-148	common	sched_rr_get_interval	sys_sched_rr_get_interval
-149	common	mlock			sys_mlock
-150	common	munlock			sys_munlock
-151	common	mlockall		sys_mlockall
-152	common	munlockall		sys_munlockall
-153	common	vhangup			sys_vhangup
-154	common	modify_ldt		sys_modify_ldt
-155	common	pivot_root		sys_pivot_root
-156	64	_sysctl			sys_sysctl
-157	common	prctl			sys_prctl
-158	common	arch_prctl		sys_arch_prctl
-159	common	adjtimex		sys_adjtimex
-160	common	setrlimit		sys_setrlimit
-161	common	chroot			sys_chroot
-162	common	sync			sys_sync
-163	common	acct			sys_acct
-164	common	settimeofday		sys_settimeofday
-165	common	mount			sys_mount
-166	common	umount2			sys_umount
-167	common	swapon			sys_swapon
-168	common	swapoff			sys_swapoff
-169	common	reboot			sys_reboot
-170	common	sethostname		sys_sethostname
-171	common	setdomainname		sys_setdomainname
-172	common	iopl			sys_iopl/ptregs
-173	common	ioperm			sys_ioperm
+135	common	personality		__x64_sys_personality
+136	common	ustat			__x64_sys_ustat
+137	common	statfs			__x64_sys_statfs
+138	common	fstatfs			__x64_sys_fstatfs
+139	common	sysfs			__x64_sys_sysfs
+140	common	getpriority		__x64_sys_getpriority
+141	common	setpriority		__x64_sys_setpriority
+142	common	sched_setparam		__x64_sys_sched_setparam
+143	common	sched_getparam		__x64_sys_sched_getparam
+144	common	sched_setscheduler	__x64_sys_sched_setscheduler
+145	common	sched_getscheduler	__x64_sys_sched_getscheduler
+146	common	sched_get_priority_max	__x64_sys_sched_get_priority_max
+147	common	sched_get_priority_min	__x64_sys_sched_get_priority_min
+148	common	sched_rr_get_interval	__x64_sys_sched_rr_get_interval
+149	common	mlock			__x64_sys_mlock
+150	common	munlock			__x64_sys_munlock
+151	common	mlockall		__x64_sys_mlockall
+152	common	munlockall		__x64_sys_munlockall
+153	common	vhangup			__x64_sys_vhangup
+154	common	modify_ldt		__x64_sys_modify_ldt
+155	common	pivot_root		__x64_sys_pivot_root
+156	64	_sysctl			__x64_sys_sysctl
+157	common	prctl			__x64_sys_prctl
+158	common	arch_prctl		__x64_sys_arch_prctl
+159	common	adjtimex		__x64_sys_adjtimex
+160	common	setrlimit		__x64_sys_setrlimit
+161	common	chroot			__x64_sys_chroot
+162	common	sync			__x64_sys_sync
+163	common	acct			__x64_sys_acct
+164	common	settimeofday		__x64_sys_settimeofday
+165	common	mount			__x64_sys_mount
+166	common	umount2			__x64_sys_umount
+167	common	swapon			__x64_sys_swapon
+168	common	swapoff			__x64_sys_swapoff
+169	common	reboot			__x64_sys_reboot
+170	common	sethostname		__x64_sys_sethostname
+171	common	setdomainname		__x64_sys_setdomainname
+172	common	iopl			__x64_sys_iopl/ptregs
+173	common	ioperm			__x64_sys_ioperm
 174	64	create_module
-175	common	init_module		sys_init_module
-176	common	delete_module		sys_delete_module
+175	common	init_module		__x64_sys_init_module
+176	common	delete_module		__x64_sys_delete_module
 177	64	get_kernel_syms
 178	64	query_module
-179	common	quotactl		sys_quotactl
+179	common	quotactl		__x64_sys_quotactl
 180	64	nfsservctl
 181	common	getpmsg
 182	common	putpmsg
 183	common	afs_syscall
 184	common	tuxcall
 185	common	security
-186	common	gettid			sys_gettid
-187	common	readahead		sys_readahead
-188	common	setxattr		sys_setxattr
-189	common	lsetxattr		sys_lsetxattr
-190	common	fsetxattr		sys_fsetxattr
-191	common	getxattr		sys_getxattr
-192	common	lgetxattr		sys_lgetxattr
-193	common	fgetxattr		sys_fgetxattr
-194	common	listxattr		sys_listxattr
-195	common	llistxattr		sys_llistxattr
-196	common	flistxattr		sys_flistxattr
-197	common	removexattr		sys_removexattr
-198	common	lremovexattr		sys_lremovexattr
-199	common	fremovexattr		sys_fremovexattr
-200	common	tkill			sys_tkill
-201	common	time			sys_time
-202	common	futex			sys_futex
-203	common	sched_setaffinity	sys_sched_setaffinity
-204	common	sched_getaffinity	sys_sched_getaffinity
+186	common	gettid			__x64_sys_gettid
+187	common	readahead		__x64_sys_readahead
+188	common	setxattr		__x64_sys_setxattr
+189	common	lsetxattr		__x64_sys_lsetxattr
+190	common	fsetxattr		__x64_sys_fsetxattr
+191	common	getxattr		__x64_sys_getxattr
+192	common	lgetxattr		__x64_sys_lgetxattr
+193	common	fgetxattr		__x64_sys_fgetxattr
+194	common	listxattr		__x64_sys_listxattr
+195	common	llistxattr		__x64_sys_llistxattr
+196	common	flistxattr		__x64_sys_flistxattr
+197	common	removexattr		__x64_sys_removexattr
+198	common	lremovexattr		__x64_sys_lremovexattr
+199	common	fremovexattr		__x64_sys_fremovexattr
+200	common	tkill			__x64_sys_tkill
+201	common	time			__x64_sys_time
+202	common	futex			__x64_sys_futex
+203	common	sched_setaffinity	__x64_sys_sched_setaffinity
+204	common	sched_getaffinity	__x64_sys_sched_getaffinity
 205	64	set_thread_area
-206	64	io_setup		sys_io_setup
-207	common	io_destroy		sys_io_destroy
-208	common	io_getevents		sys_io_getevents
-209	64	io_submit		sys_io_submit
-210	common	io_cancel		sys_io_cancel
+206	64	io_setup		__x64_sys_io_setup
+207	common	io_destroy		__x64_sys_io_destroy
+208	common	io_getevents		__x64_sys_io_getevents
+209	64	io_submit		__x64_sys_io_submit
+210	common	io_cancel		__x64_sys_io_cancel
 211	64	get_thread_area
-212	common	lookup_dcookie		sys_lookup_dcookie
-213	common	epoll_create		sys_epoll_create
+212	common	lookup_dcookie		__x64_sys_lookup_dcookie
+213	common	epoll_create		__x64_sys_epoll_create
 214	64	epoll_ctl_old
 215	64	epoll_wait_old
-216	common	remap_file_pages	sys_remap_file_pages
-217	common	getdents64		sys_getdents64
-218	common	set_tid_address		sys_set_tid_address
-219	common	restart_syscall		sys_restart_syscall
-220	common	semtimedop		sys_semtimedop
-221	common	fadvise64		sys_fadvise64
-222	64	timer_create		sys_timer_create
-223	common	timer_settime		sys_timer_settime
-224	common	timer_gettime		sys_timer_gettime
-225	common	timer_getoverrun	sys_timer_getoverrun
-226	common	timer_delete		sys_timer_delete
-227	common	clock_settime		sys_clock_settime
-228	common	clock_gettime		sys_clock_gettime
-229	common	clock_getres		sys_clock_getres
-230	common	clock_nanosleep		sys_clock_nanosleep
-231	common	exit_group		sys_exit_group
-232	common	epoll_wait		sys_epoll_wait
-233	common	epoll_ctl		sys_epoll_ctl
-234	common	tgkill			sys_tgkill
-235	common	utimes			sys_utimes
+216	common	remap_file_pages	__x64_sys_remap_file_pages
+217	common	getdents64		__x64_sys_getdents64
+218	common	set_tid_address		__x64_sys_set_tid_address
+219	common	restart_syscall		__x64_sys_restart_syscall
+220	common	semtimedop		__x64_sys_semtimedop
+221	common	fadvise64		__x64_sys_fadvise64
+222	64	timer_create		__x64_sys_timer_create
+223	common	timer_settime		__x64_sys_timer_settime
+224	common	timer_gettime		__x64_sys_timer_gettime
+225	common	timer_getoverrun	__x64_sys_timer_getoverrun
+226	common	timer_delete		__x64_sys_timer_delete
+227	common	clock_settime		__x64_sys_clock_settime
+228	common	clock_gettime		__x64_sys_clock_gettime
+229	common	clock_getres		__x64_sys_clock_getres
+230	common	clock_nanosleep		__x64_sys_clock_nanosleep
+231	common	exit_group		__x64_sys_exit_group
+232	common	epoll_wait		__x64_sys_epoll_wait
+233	common	epoll_ctl		__x64_sys_epoll_ctl
+234	common	tgkill			__x64_sys_tgkill
+235	common	utimes			__x64_sys_utimes
 236	64	vserver
-237	common	mbind			sys_mbind
-238	common	set_mempolicy		sys_set_mempolicy
-239	common	get_mempolicy		sys_get_mempolicy
-240	common	mq_open			sys_mq_open
-241	common	mq_unlink		sys_mq_unlink
-242	common	mq_timedsend		sys_mq_timedsend
-243	common	mq_timedreceive		sys_mq_timedreceive
-244	64	mq_notify		sys_mq_notify
-245	common	mq_getsetattr		sys_mq_getsetattr
-246	64	kexec_load		sys_kexec_load
-247	64	waitid			sys_waitid
-248	common	add_key			sys_add_key
-249	common	request_key		sys_request_key
-250	common	keyctl			sys_keyctl
-251	common	ioprio_set		sys_ioprio_set
-252	common	ioprio_get		sys_ioprio_get
-253	common	inotify_init		sys_inotify_init
-254	common	inotify_add_watch	sys_inotify_add_watch
-255	common	inotify_rm_watch	sys_inotify_rm_watch
-256	common	migrate_pages		sys_migrate_pages
-257	common	openat			sys_openat
-258	common	mkdirat			sys_mkdirat
-259	common	mknodat			sys_mknodat
-260	common	fchownat		sys_fchownat
-261	common	futimesat		sys_futimesat
-262	common	newfstatat		sys_newfstatat
-263	common	unlinkat		sys_unlinkat
-264	common	renameat		sys_renameat
-265	common	linkat			sys_linkat
-266	common	symlinkat		sys_symlinkat
-267	common	readlinkat		sys_readlinkat
-268	common	fchmodat		sys_fchmodat
-269	common	faccessat		sys_faccessat
-270	common	pselect6		sys_pselect6
-271	common	ppoll			sys_ppoll
-272	common	unshare			sys_unshare
-273	64	set_robust_list		sys_set_robust_list
-274	64	get_robust_list		sys_get_robust_list
-275	common	splice			sys_splice
-276	common	tee			sys_tee
-277	common	sync_file_range		sys_sync_file_range
-278	64	vmsplice		sys_vmsplice
-279	64	move_pages		sys_move_pages
-280	common	utimensat		sys_utimensat
-281	common	epoll_pwait		sys_epoll_pwait
-282	common	signalfd		sys_signalfd
-283	common	timerfd_create		sys_timerfd_create
-284	common	eventfd			sys_eventfd
-285	common	fallocate		sys_fallocate
-286	common	timerfd_settime		sys_timerfd_settime
-287	common	timerfd_gettime		sys_timerfd_gettime
-288	common	accept4			sys_accept4
-289	common	signalfd4		sys_signalfd4
-290	common	eventfd2		sys_eventfd2
-291	common	epoll_create1		sys_epoll_create1
-292	common	dup3			sys_dup3
-293	common	pipe2			sys_pipe2
-294	common	inotify_init1		sys_inotify_init1
-295	64	preadv			sys_preadv
-296	64	pwritev			sys_pwritev
-297	64	rt_tgsigqueueinfo	sys_rt_tgsigqueueinfo
-298	common	perf_event_open		sys_perf_event_open
-299	64	recvmmsg		sys_recvmmsg
-300	common	fanotify_init		sys_fanotify_init
-301	common	fanotify_mark		sys_fanotify_mark
-302	common	prlimit64		sys_prlimit64
-303	common	name_to_handle_at	sys_name_to_handle_at
-304	common	open_by_handle_at	sys_open_by_handle_at
-305	common	clock_adjtime		sys_clock_adjtime
-306	common	syncfs			sys_syncfs
-307	64	sendmmsg		sys_sendmmsg
-308	common	setns			sys_setns
-309	common	getcpu			sys_getcpu
-310	64	process_vm_readv	sys_process_vm_readv
-311	64	process_vm_writev	sys_process_vm_writev
-312	common	kcmp			sys_kcmp
-313	common	finit_module		sys_finit_module
-314	common	sched_setattr		sys_sched_setattr
-315	common	sched_getattr		sys_sched_getattr
-316	common	renameat2		sys_renameat2
-317	common	seccomp			sys_seccomp
-318	common	getrandom		sys_getrandom
-319	common	memfd_create		sys_memfd_create
-320	common	kexec_file_load		sys_kexec_file_load
-321	common	bpf			sys_bpf
-322	64	execveat		sys_execveat/ptregs
-323	common	userfaultfd		sys_userfaultfd
-324	common	membarrier		sys_membarrier
-325	common	mlock2			sys_mlock2
-326	common	copy_file_range		sys_copy_file_range
-327	64	preadv2			sys_preadv2
-328	64	pwritev2		sys_pwritev2
-329	common	pkey_mprotect		sys_pkey_mprotect
-330	common	pkey_alloc		sys_pkey_alloc
-331	common	pkey_free		sys_pkey_free
-332	common	statx			sys_statx
+237	common	mbind			__x64_sys_mbind
+238	common	set_mempolicy		__x64_sys_set_mempolicy
+239	common	get_mempolicy		__x64_sys_get_mempolicy
+240	common	mq_open			__x64_sys_mq_open
+241	common	mq_unlink		__x64_sys_mq_unlink
+242	common	mq_timedsend		__x64_sys_mq_timedsend
+243	common	mq_timedreceive		__x64_sys_mq_timedreceive
+244	64	mq_notify		__x64_sys_mq_notify
+245	common	mq_getsetattr		__x64_sys_mq_getsetattr
+246	64	kexec_load		__x64_sys_kexec_load
+247	64	waitid			__x64_sys_waitid
+248	common	add_key			__x64_sys_add_key
+249	common	request_key		__x64_sys_request_key
+250	common	keyctl			__x64_sys_keyctl
+251	common	ioprio_set		__x64_sys_ioprio_set
+252	common	ioprio_get		__x64_sys_ioprio_get
+253	common	inotify_init		__x64_sys_inotify_init
+254	common	inotify_add_watch	__x64_sys_inotify_add_watch
+255	common	inotify_rm_watch	__x64_sys_inotify_rm_watch
+256	common	migrate_pages		__x64_sys_migrate_pages
+257	common	openat			__x64_sys_openat
+258	common	mkdirat			__x64_sys_mkdirat
+259	common	mknodat			__x64_sys_mknodat
+260	common	fchownat		__x64_sys_fchownat
+261	common	futimesat		__x64_sys_futimesat
+262	common	newfstatat		__x64_sys_newfstatat
+263	common	unlinkat		__x64_sys_unlinkat
+264	common	renameat		__x64_sys_renameat
+265	common	linkat			__x64_sys_linkat
+266	common	symlinkat		__x64_sys_symlinkat
+267	common	readlinkat		__x64_sys_readlinkat
+268	common	fchmodat		__x64_sys_fchmodat
+269	common	faccessat		__x64_sys_faccessat
+270	common	pselect6		__x64_sys_pselect6
+271	common	ppoll			__x64_sys_ppoll
+272	common	unshare			__x64_sys_unshare
+273	64	set_robust_list		__x64_sys_set_robust_list
+274	64	get_robust_list		__x64_sys_get_robust_list
+275	common	splice			__x64_sys_splice
+276	common	tee			__x64_sys_tee
+277	common	sync_file_range		__x64_sys_sync_file_range
+278	64	vmsplice		__x64_sys_vmsplice
+279	64	move_pages		__x64_sys_move_pages
+280	common	utimensat		__x64_sys_utimensat
+281	common	epoll_pwait		__x64_sys_epoll_pwait
+282	common	signalfd		__x64_sys_signalfd
+283	common	timerfd_create		__x64_sys_timerfd_create
+284	common	eventfd			__x64_sys_eventfd
+285	common	fallocate		__x64_sys_fallocate
+286	common	timerfd_settime		__x64_sys_timerfd_settime
+287	common	timerfd_gettime		__x64_sys_timerfd_gettime
+288	common	accept4			__x64_sys_accept4
+289	common	signalfd4		__x64_sys_signalfd4
+290	common	eventfd2		__x64_sys_eventfd2
+291	common	epoll_create1		__x64_sys_epoll_create1
+292	common	dup3			__x64_sys_dup3
+293	common	pipe2			__x64_sys_pipe2
+294	common	inotify_init1		__x64_sys_inotify_init1
+295	64	preadv			__x64_sys_preadv
+296	64	pwritev			__x64_sys_pwritev
+297	64	rt_tgsigqueueinfo	__x64_sys_rt_tgsigqueueinfo
+298	common	perf_event_open		__x64_sys_perf_event_open
+299	64	recvmmsg		__x64_sys_recvmmsg
+300	common	fanotify_init		__x64_sys_fanotify_init
+301	common	fanotify_mark		__x64_sys_fanotify_mark
+302	common	prlimit64		__x64_sys_prlimit64
+303	common	name_to_handle_at	__x64_sys_name_to_handle_at
+304	common	open_by_handle_at	__x64_sys_open_by_handle_at
+305	common	clock_adjtime		__x64_sys_clock_adjtime
+306	common	syncfs			__x64_sys_syncfs
+307	64	sendmmsg		__x64_sys_sendmmsg
+308	common	setns			__x64_sys_setns
+309	common	getcpu			__x64_sys_getcpu
+310	64	process_vm_readv	__x64_sys_process_vm_readv
+311	64	process_vm_writev	__x64_sys_process_vm_writev
+312	common	kcmp			__x64_sys_kcmp
+313	common	finit_module		__x64_sys_finit_module
+314	common	sched_setattr		__x64_sys_sched_setattr
+315	common	sched_getattr		__x64_sys_sched_getattr
+316	common	renameat2		__x64_sys_renameat2
+317	common	seccomp			__x64_sys_seccomp
+318	common	getrandom		__x64_sys_getrandom
+319	common	memfd_create		__x64_sys_memfd_create
+320	common	kexec_file_load		__x64_sys_kexec_file_load
+321	common	bpf			__x64_sys_bpf
+322	64	execveat		__x64_sys_execveat/ptregs
+323	common	userfaultfd		__x64_sys_userfaultfd
+324	common	membarrier		__x64_sys_membarrier
+325	common	mlock2			__x64_sys_mlock2
+326	common	copy_file_range		__x64_sys_copy_file_range
+327	64	preadv2			__x64_sys_preadv2
+328	64	pwritev2		__x64_sys_pwritev2
+329	common	pkey_mprotect		__x64_sys_pkey_mprotect
+330	common	pkey_alloc		__x64_sys_pkey_alloc
+331	common	pkey_free		__x64_sys_pkey_free
+332	common	statx			__x64_sys_statx
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact
-# for native 64-bit operation.
+# for native 64-bit operation. The __x32_compat_sys stubs are created
+# on-the-fly for compat_sys_*() compatibility system calls if X86_X32
+# is defined.
 #
-512	x32	rt_sigaction		compat_sys_rt_sigaction
+512	x32	rt_sigaction		__x32_compat_sys_rt_sigaction
 513	x32	rt_sigreturn		sys32_x32_rt_sigreturn
-514	x32	ioctl			compat_sys_ioctl
-515	x32	readv			compat_sys_readv
-516	x32	writev			compat_sys_writev
-517	x32	recvfrom		compat_sys_recvfrom
-518	x32	sendmsg			compat_sys_sendmsg
-519	x32	recvmsg			compat_sys_recvmsg
-520	x32	execve			compat_sys_execve/ptregs
-521	x32	ptrace			compat_sys_ptrace
-522	x32	rt_sigpending		compat_sys_rt_sigpending
-523	x32	rt_sigtimedwait		compat_sys_rt_sigtimedwait
-524	x32	rt_sigqueueinfo		compat_sys_rt_sigqueueinfo
-525	x32	sigaltstack		compat_sys_sigaltstack
-526	x32	timer_create		compat_sys_timer_create
-527	x32	mq_notify		compat_sys_mq_notify
-528	x32	kexec_load		compat_sys_kexec_load
-529	x32	waitid			compat_sys_waitid
-530	x32	set_robust_list		compat_sys_set_robust_list
-531	x32	get_robust_list		compat_sys_get_robust_list
-532	x32	vmsplice		compat_sys_vmsplice
-533	x32	move_pages		compat_sys_move_pages
-534	x32	preadv			compat_sys_preadv64
-535	x32	pwritev			compat_sys_pwritev64
-536	x32	rt_tgsigqueueinfo	compat_sys_rt_tgsigqueueinfo
-537	x32	recvmmsg		compat_sys_recvmmsg
-538	x32	sendmmsg		compat_sys_sendmmsg
-539	x32	process_vm_readv	compat_sys_process_vm_readv
-540	x32	process_vm_writev	compat_sys_process_vm_writev
-541	x32	setsockopt		compat_sys_setsockopt
-542	x32	getsockopt		compat_sys_getsockopt
-543	x32	io_setup		compat_sys_io_setup
-544	x32	io_submit		compat_sys_io_submit
-545	x32	execveat		compat_sys_execveat/ptregs
-546	x32	preadv2			compat_sys_preadv64v2
-547	x32	pwritev2		compat_sys_pwritev64v2
+514	x32	ioctl			__x32_compat_sys_ioctl
+515	x32	readv			__x32_compat_sys_readv
+516	x32	writev			__x32_compat_sys_writev
+517	x32	recvfrom		__x32_compat_sys_recvfrom
+518	x32	sendmsg			__x32_compat_sys_sendmsg
+519	x32	recvmsg			__x32_compat_sys_recvmsg
+520	x32	execve			__x32_compat_sys_execve/ptregs
+521	x32	ptrace			__x32_compat_sys_ptrace
+522	x32	rt_sigpending		__x32_compat_sys_rt_sigpending
+523	x32	rt_sigtimedwait		__x32_compat_sys_rt_sigtimedwait
+524	x32	rt_sigqueueinfo		__x32_compat_sys_rt_sigqueueinfo
+525	x32	sigaltstack		__x32_compat_sys_sigaltstack
+526	x32	timer_create		__x32_compat_sys_timer_create
+527	x32	mq_notify		__x32_compat_sys_mq_notify
+528	x32	kexec_load		__x32_compat_sys_kexec_load
+529	x32	waitid			__x32_compat_sys_waitid
+530	x32	set_robust_list		__x32_compat_sys_set_robust_list
+531	x32	get_robust_list		__x32_compat_sys_get_robust_list
+532	x32	vmsplice		__x32_compat_sys_vmsplice
+533	x32	move_pages		__x32_compat_sys_move_pages
+534	x32	preadv			__x32_compat_sys_preadv64
+535	x32	pwritev			__x32_compat_sys_pwritev64
+536	x32	rt_tgsigqueueinfo	__x32_compat_sys_rt_tgsigqueueinfo
+537	x32	recvmmsg		__x32_compat_sys_recvmmsg
+538	x32	sendmmsg		__x32_compat_sys_sendmmsg
+539	x32	process_vm_readv	__x32_compat_sys_process_vm_readv
+540	x32	process_vm_writev	__x32_compat_sys_process_vm_writev
+541	x32	setsockopt		__x32_compat_sys_setsockopt
+542	x32	getsockopt		__x32_compat_sys_getsockopt
+543	x32	io_setup		__x32_compat_sys_io_setup
+544	x32	io_submit		__x32_compat_sys_io_submit
+545	x32	execveat		__x32_compat_sys_execveat/ptregs
+546	x32	preadv2			__x32_compat_sys_preadv64v2
+547	x32	pwritev2		__x32_compat_sys_pwritev64v2
diff --git a/arch/x86/entry/syscalls/syscalltbl.sh b/arch/x86/entry/syscalls/syscalltbl.sh
index d71ef4bd3615..94fcd1951aca 100644
--- a/arch/x86/entry/syscalls/syscalltbl.sh
+++ b/arch/x86/entry/syscalls/syscalltbl.sh
@@ -25,15 +25,27 @@ emit() {
     nr="$2"
     entry="$3"
     compat="$4"
+    umlentry=""
 
     if [ "$abi" = "64" -a -n "$compat" ]; then
 	echo "a compat entry for a 64-bit syscall makes no sense" >&2
 	exit 1
     fi
 
+    # For CONFIG_UML, we need to strip the __x64_sys prefix
+    if [ "$abi" = "64" -a "${entry}" != "${entry#__x64_sys}" ]; then
+	    umlentry="sys${entry#__x64_sys}"
+    fi
+
     if [ -z "$compat" ]; then
-	if [ -n "$entry" ]; then
+	if [ -n "$entry" -a -z "$umlentry" ]; then
 	    syscall_macro "$abi" "$nr" "$entry"
+	elif [ -n "$umlentry" ]; then # implies -n "$entry"
+	    echo "#ifdef CONFIG_X86"
+	    syscall_macro "$abi" "$nr" "$entry"
+	    echo "#else /* CONFIG_UML */"
+	    syscall_macro "$abi" "$nr" "$umlentry"
+	    echo "#endif"
 	fi
     else
 	echo "#ifdef CONFIG_X86_32"
diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
index 1943aebadede..d998a487c9b1 100644
--- a/arch/x86/entry/vdso/Makefile
+++ b/arch/x86/entry/vdso/Makefile
@@ -42,9 +42,7 @@ vdso_img_cfiles := $(vdso_img-y:%=vdso-image-%.c)
 vdso_img_sodbg := $(vdso_img-y:%=vdso%.so.dbg)
 obj-y += $(vdso_img_objs)
 targets += $(vdso_img_cfiles)
-targets += $(vdso_img_sodbg)
-.SECONDARY: $(vdso_img-y:%=$(obj)/vdso-image-%.c) \
-	$(vdso_img-y:%=$(obj)/vdso%.so)
+targets += $(vdso_img_sodbg) $(vdso_img-y:%=vdso%.so)
 
 export CPPFLAGS_vdso.lds += -P -C
 
diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c
index 317be365bce3..70b7845434cb 100644
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -127,6 +127,7 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
 	int vsyscall_nr, syscall_nr, tmp;
 	int prev_sig_on_uaccess_err;
 	long ret;
+	unsigned long orig_dx;
 
 	/*
 	 * No point in checking CS -- the only way to get here is a user mode
@@ -227,19 +228,22 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
 	ret = -EFAULT;
 	switch (vsyscall_nr) {
 	case 0:
-		ret = sys_gettimeofday(
-			(struct timeval __user *)regs->di,
-			(struct timezone __user *)regs->si);
+		/* this decodes regs->di and regs->si on its own */
+		ret = __x64_sys_gettimeofday(regs);
 		break;
 
 	case 1:
-		ret = sys_time((time_t __user *)regs->di);
+		/* this decodes regs->di on its own */
+		ret = __x64_sys_time(regs);
 		break;
 
 	case 2:
-		ret = sys_getcpu((unsigned __user *)regs->di,
-				 (unsigned __user *)regs->si,
-				 NULL);
+		/* while we could clobber regs->dx, we didn't in the past... */
+		orig_dx = regs->dx;
+		regs->dx = 0;
+		/* this decodes regs->di, regs->si and regs->dx on its own */
+		ret = __x64_sys_getcpu(regs);
+		regs->dx = orig_dx;
 		break;
 	}
 
diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c
index da6780122786..8a10a045b57b 100644
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -1153,7 +1153,6 @@ static void setup_pebs_sample_data(struct perf_event *event,
 	if (pebs == NULL)
 		return;
 
-	regs->flags &= ~PERF_EFLAGS_EXACT;
 	sample_type = event->attr.sample_type;
 	dsrc = sample_type & PERF_SAMPLE_DATA_SRC;
 
@@ -1197,7 +1196,13 @@ static void setup_pebs_sample_data(struct perf_event *event,
 	 * and PMI.
 	 */
 	*regs = *iregs;
-	regs->flags = pebs->flags;
+
+	/*
+	 * Initialize regs_>flags from PEBS,
+	 * Clear exact bit (which uses x86 EFLAGS Reserved bit 3),
+	 * i.e., do not rely on it being zero:
+	 */
+	regs->flags = pebs->flags & ~PERF_EFLAGS_EXACT;
 
 	if (sample_type & PERF_SAMPLE_REGS_INTR) {
 		regs->ax = pebs->ax;
@@ -1217,10 +1222,6 @@ static void setup_pebs_sample_data(struct perf_event *event,
 			regs->sp = pebs->sp;
 		}
 
-		/*
-		 * Preserve PERF_EFLAGS_VM from set_linear_ip().
-		 */
-		regs->flags = pebs->flags | (regs->flags & PERF_EFLAGS_VM);
 #ifndef CONFIG_X86_32
 		regs->r8 = pebs->r8;
 		regs->r9 = pebs->r9;
@@ -1234,20 +1235,33 @@ static void setup_pebs_sample_data(struct perf_event *event,
 	}
 
 	if (event->attr.precise_ip > 1) {
-		/* Haswell and later have the eventing IP, so use it: */
+		/*
+		 * Haswell and later processors have an 'eventing IP'
+		 * (real IP) which fixes the off-by-1 skid in hardware.
+		 * Use it when precise_ip >= 2 :
+		 */
 		if (x86_pmu.intel_cap.pebs_format >= 2) {
 			set_linear_ip(regs, pebs->real_ip);
 			regs->flags |= PERF_EFLAGS_EXACT;
 		} else {
-			/* Otherwise use PEBS off-by-1 IP: */
+			/* Otherwise, use PEBS off-by-1 IP: */
 			set_linear_ip(regs, pebs->ip);
 
-			/* ... and try to fix it up using the LBR entries: */
+			/*
+			 * With precise_ip >= 2, try to fix up the off-by-1 IP
+			 * using the LBR. If successful, the fixup function
+			 * corrects regs->ip and calls set_linear_ip() on regs:
+			 */
 			if (intel_pmu_pebs_fixup_ip(regs))
 				regs->flags |= PERF_EFLAGS_EXACT;
 		}
-	} else
+	} else {
+		/*
+		 * When precise_ip == 1, return the PEBS off-by-1 IP,
+		 * no fixup attempted:
+		 */
 		set_linear_ip(regs, pebs->ip);
+	}
 
 
 	if ((sample_type & (PERF_SAMPLE_ADDR | PERF_SAMPLE_PHYS_ADDR)) &&
diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c
index 2edc49e7409b..cfecc2272f2d 100644
--- a/arch/x86/hyperv/hv_init.c
+++ b/arch/x86/hyperv/hv_init.c
@@ -21,7 +21,7 @@
 #include <asm/apic.h>
 #include <asm/desc.h>
 #include <asm/hypervisor.h>
-#include <asm/hyperv.h>
+#include <asm/hyperv-tlfs.h>
 #include <asm/mshyperv.h>
 #include <linux/version.h>
 #include <linux/vmalloc.h>
@@ -88,11 +88,15 @@ EXPORT_SYMBOL_GPL(hyperv_cs);
 u32 *hv_vp_index;
 EXPORT_SYMBOL_GPL(hv_vp_index);
 
+struct hv_vp_assist_page **hv_vp_assist_page;
+EXPORT_SYMBOL_GPL(hv_vp_assist_page);
+
 u32 hv_max_vp_index;
 
 static int hv_cpu_init(unsigned int cpu)
 {
 	u64 msr_vp_index;
+	struct hv_vp_assist_page **hvp = &hv_vp_assist_page[smp_processor_id()];
 
 	hv_get_vp_index(msr_vp_index);
 
@@ -101,6 +105,22 @@ static int hv_cpu_init(unsigned int cpu)
 	if (msr_vp_index > hv_max_vp_index)
 		hv_max_vp_index = msr_vp_index;
 
+	if (!hv_vp_assist_page)
+		return 0;
+
+	if (!*hvp)
+		*hvp = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL);
+
+	if (*hvp) {
+		u64 val;
+
+		val = vmalloc_to_pfn(*hvp);
+		val = (val << HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT) |
+			HV_X64_MSR_VP_ASSIST_PAGE_ENABLE;
+
+		wrmsrl(HV_X64_MSR_VP_ASSIST_PAGE, val);
+	}
+
 	return 0;
 }
 
@@ -198,6 +218,9 @@ static int hv_cpu_die(unsigned int cpu)
 	struct hv_reenlightenment_control re_ctrl;
 	unsigned int new_cpu;
 
+	if (hv_vp_assist_page && hv_vp_assist_page[cpu])
+		wrmsrl(HV_X64_MSR_VP_ASSIST_PAGE, 0);
+
 	if (hv_reenlightenment_cb == NULL)
 		return 0;
 
@@ -224,6 +247,7 @@ void hyperv_init(void)
 {
 	u64 guest_id, required_msrs;
 	union hv_x64_msr_hypercall_contents hypercall_msr;
+	int cpuhp;
 
 	if (x86_hyper_type != X86_HYPER_MS_HYPERV)
 		return;
@@ -241,9 +265,17 @@ void hyperv_init(void)
 	if (!hv_vp_index)
 		return;
 
-	if (cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "x86/hyperv_init:online",
-			      hv_cpu_init, hv_cpu_die) < 0)
+	hv_vp_assist_page = kcalloc(num_possible_cpus(),
+				    sizeof(*hv_vp_assist_page), GFP_KERNEL);
+	if (!hv_vp_assist_page) {
+		ms_hyperv.hints &= ~HV_X64_ENLIGHTENED_VMCS_RECOMMENDED;
 		goto free_vp_index;
+	}
+
+	cpuhp = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "x86/hyperv_init:online",
+				  hv_cpu_init, hv_cpu_die);
+	if (cpuhp < 0)
+		goto free_vp_assist_page;
 
 	/*
 	 * Setup the hypercall page and enable hypercalls.
@@ -256,7 +288,7 @@ void hyperv_init(void)
 	hv_hypercall_pg  = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_RX);
 	if (hv_hypercall_pg == NULL) {
 		wrmsrl(HV_X64_MSR_GUEST_OS_ID, 0);
-		goto free_vp_index;
+		goto remove_cpuhp_state;
 	}
 
 	rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
@@ -304,6 +336,11 @@ register_msr_cs:
 
 	return;
 
+remove_cpuhp_state:
+	cpuhp_remove_state(cpuhp);
+free_vp_assist_page:
+	kfree(hv_vp_assist_page);
+	hv_vp_assist_page = NULL;
 free_vp_index:
 	kfree(hv_vp_index);
 	hv_vp_index = NULL;
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 40a3d3642f3a..08acd954f00e 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -313,7 +313,7 @@ struct apic {
 	/* Probe, setup and smpboot functions */
 	int	(*probe)(void);
 	int	(*acpi_madt_oem_check)(char *oem_id, char *oem_table_id);
-	int	(*apic_id_valid)(int apicid);
+	int	(*apic_id_valid)(u32 apicid);
 	int	(*apic_id_registered)(void);
 
 	bool	(*check_apicid_used)(physid_mask_t *map, int apicid);
@@ -486,7 +486,7 @@ static inline unsigned int read_apic_id(void)
 	return apic->get_apic_id(reg);
 }
 
-extern int default_apic_id_valid(int apicid);
+extern int default_apic_id_valid(u32 apicid);
 extern int default_acpi_madt_oem_check(char *, char *);
 extern void default_setup_apic_routing(void);
 
diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
index 46e1ef17d92d..92212bf0484f 100644
--- a/arch/x86/include/asm/atomic64_32.h
+++ b/arch/x86/include/asm/atomic64_32.h
@@ -123,7 +123,7 @@ static inline long long arch_atomic64_read(const atomic64_t *v)
 	long long r;
 	alternative_atomic64(read, "=&A" (r), "c" (v) : "memory");
 	return r;
- }
+}
 
 /**
  * arch_atomic64_add_return - add and return
diff --git a/arch/x86/include/uapi/asm/hyperv.h b/arch/x86/include/asm/hyperv-tlfs.h
index 6c0c3a3b631c..416cb0e0c496 100644
--- a/arch/x86/include/uapi/asm/hyperv.h
+++ b/arch/x86/include/asm/hyperv-tlfs.h
@@ -1,6 +1,13 @@
 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_X86_HYPERV_H
-#define _ASM_X86_HYPERV_H
+
+/*
+ * This file contains definitions from Hyper-V Hypervisor Top-Level Functional
+ * Specification (TLFS):
+ * https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/tlfs
+ */
+
+#ifndef _ASM_X86_HYPERV_TLFS_H
+#define _ASM_X86_HYPERV_TLFS_H
 
 #include <linux/types.h>
 
@@ -14,6 +21,7 @@
 #define HYPERV_CPUID_FEATURES			0x40000003
 #define HYPERV_CPUID_ENLIGHTMENT_INFO		0x40000004
 #define HYPERV_CPUID_IMPLEMENT_LIMITS		0x40000005
+#define HYPERV_CPUID_NESTED_FEATURES		0x4000000A
 
 #define HYPERV_HYPERVISOR_PRESENT_BIT		0x80000000
 #define HYPERV_CPUID_MIN			0x40000005
@@ -159,6 +167,9 @@
 /* Recommend using the newer ExProcessorMasks interface */
 #define HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED	(1 << 11)
 
+/* Recommend using enlightened VMCS */
+#define HV_X64_ENLIGHTENED_VMCS_RECOMMENDED    (1 << 14)
+
 /*
  * Crash notification flag.
  */
@@ -192,7 +203,7 @@
 #define HV_X64_MSR_EOI				0x40000070
 #define HV_X64_MSR_ICR				0x40000071
 #define HV_X64_MSR_TPR				0x40000072
-#define HV_X64_MSR_APIC_ASSIST_PAGE		0x40000073
+#define HV_X64_MSR_VP_ASSIST_PAGE		0x40000073
 
 /* Define synthetic interrupt controller model specific registers. */
 #define HV_X64_MSR_SCONTROL			0x40000080
@@ -240,6 +251,55 @@
 #define HV_X64_MSR_CRASH_PARAMS		\
 		(1 + (HV_X64_MSR_CRASH_P4 - HV_X64_MSR_CRASH_P0))
 
+/*
+ * Declare the MSR used to setup pages used to communicate with the hypervisor.
+ */
+union hv_x64_msr_hypercall_contents {
+	u64 as_uint64;
+	struct {
+		u64 enable:1;
+		u64 reserved:11;
+		u64 guest_physical_address:52;
+	};
+};
+
+/*
+ * TSC page layout.
+ */
+struct ms_hyperv_tsc_page {
+	volatile u32 tsc_sequence;
+	u32 reserved1;
+	volatile u64 tsc_scale;
+	volatile s64 tsc_offset;
+	u64 reserved2[509];
+};
+
+/*
+ * The guest OS needs to register the guest ID with the hypervisor.
+ * The guest ID is a 64 bit entity and the structure of this ID is
+ * specified in the Hyper-V specification:
+ *
+ * msdn.microsoft.com/en-us/library/windows/hardware/ff542653%28v=vs.85%29.aspx
+ *
+ * While the current guideline does not specify how Linux guest ID(s)
+ * need to be generated, our plan is to publish the guidelines for
+ * Linux and other guest operating systems that currently are hosted
+ * on Hyper-V. The implementation here conforms to this yet
+ * unpublished guidelines.
+ *
+ *
+ * Bit(s)
+ * 63 - Indicates if the OS is Open Source or not; 1 is Open Source
+ * 62:56 - Os Type; Linux is 0x100
+ * 55:48 - Distro specific identification
+ * 47:16 - Linux kernel version number
+ * 15:0  - Distro specific identification
+ *
+ *
+ */
+
+#define HV_LINUX_VENDOR_ID              0x8100
+
 /* TSC emulation after migration */
 #define HV_X64_MSR_REENLIGHTENMENT_CONTROL	0x40000106
 
@@ -278,10 +338,13 @@ struct hv_tsc_emulation_status {
 #define HVCALL_POST_MESSAGE			0x005c
 #define HVCALL_SIGNAL_EVENT			0x005d
 
-#define HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE		0x00000001
-#define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT	12
-#define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_MASK	\
-		(~((1ull << HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT) - 1))
+#define HV_X64_MSR_VP_ASSIST_PAGE_ENABLE	0x00000001
+#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT	12
+#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK	\
+		(~((1ull << HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT) - 1))
+
+/* Hyper-V Enlightened VMCS version mask in nested features CPUID */
+#define HV_X64_ENLIGHTENED_VMCS_VERSION		0xff
 
 #define HV_X64_MSR_TSC_REFERENCE_ENABLE		0x00000001
 #define HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT	12
@@ -301,12 +364,22 @@ enum HV_GENERIC_SET_FORMAT {
 	HV_GENERIC_SET_ALL,
 };
 
+#define HV_HYPERCALL_RESULT_MASK	GENMASK_ULL(15, 0)
+#define HV_HYPERCALL_FAST_BIT		BIT(16)
+#define HV_HYPERCALL_VARHEAD_OFFSET	17
+#define HV_HYPERCALL_REP_COMP_OFFSET	32
+#define HV_HYPERCALL_REP_COMP_MASK	GENMASK_ULL(43, 32)
+#define HV_HYPERCALL_REP_START_OFFSET	48
+#define HV_HYPERCALL_REP_START_MASK	GENMASK_ULL(59, 48)
+
 /* hypercall status code */
 #define HV_STATUS_SUCCESS			0
 #define HV_STATUS_INVALID_HYPERCALL_CODE	2
 #define HV_STATUS_INVALID_HYPERCALL_INPUT	3
 #define HV_STATUS_INVALID_ALIGNMENT		4
+#define HV_STATUS_INVALID_PARAMETER		5
 #define HV_STATUS_INSUFFICIENT_MEMORY		11
+#define HV_STATUS_INVALID_PORT_ID		17
 #define HV_STATUS_INVALID_CONNECTION_ID		18
 #define HV_STATUS_INSUFFICIENT_BUFFERS		19
 
@@ -321,6 +394,8 @@ typedef struct _HV_REFERENCE_TSC_PAGE {
 #define HV_SYNIC_SINT_COUNT		(16)
 /* Define the expected SynIC version. */
 #define HV_SYNIC_VERSION_1		(0x1)
+/* Valid SynIC vectors are 16-255. */
+#define HV_SYNIC_FIRST_VALID_VECTOR	(16)
 
 #define HV_SYNIC_CONTROL_ENABLE		(1ULL << 0)
 #define HV_SYNIC_SIMP_ENABLE		(1ULL << 0)
@@ -415,6 +490,216 @@ struct hv_timer_message_payload {
 	__u64 delivery_time;	/* When the message was delivered */
 };
 
+/* Define virtual processor assist page structure. */
+struct hv_vp_assist_page {
+	__u32 apic_assist;
+	__u32 reserved;
+	__u64 vtl_control[2];
+	__u64 nested_enlightenments_control[2];
+	__u32 enlighten_vmentry;
+	__u64 current_nested_vmcs;
+};
+
+struct hv_enlightened_vmcs {
+	u32 revision_id;
+	u32 abort;
+
+	u16 host_es_selector;
+	u16 host_cs_selector;
+	u16 host_ss_selector;
+	u16 host_ds_selector;
+	u16 host_fs_selector;
+	u16 host_gs_selector;
+	u16 host_tr_selector;
+
+	u64 host_ia32_pat;
+	u64 host_ia32_efer;
+
+	u64 host_cr0;
+	u64 host_cr3;
+	u64 host_cr4;
+
+	u64 host_ia32_sysenter_esp;
+	u64 host_ia32_sysenter_eip;
+	u64 host_rip;
+	u32 host_ia32_sysenter_cs;
+
+	u32 pin_based_vm_exec_control;
+	u32 vm_exit_controls;
+	u32 secondary_vm_exec_control;
+
+	u64 io_bitmap_a;
+	u64 io_bitmap_b;
+	u64 msr_bitmap;
+
+	u16 guest_es_selector;
+	u16 guest_cs_selector;
+	u16 guest_ss_selector;
+	u16 guest_ds_selector;
+	u16 guest_fs_selector;
+	u16 guest_gs_selector;
+	u16 guest_ldtr_selector;
+	u16 guest_tr_selector;
+
+	u32 guest_es_limit;
+	u32 guest_cs_limit;
+	u32 guest_ss_limit;
+	u32 guest_ds_limit;
+	u32 guest_fs_limit;
+	u32 guest_gs_limit;
+	u32 guest_ldtr_limit;
+	u32 guest_tr_limit;
+	u32 guest_gdtr_limit;
+	u32 guest_idtr_limit;
+
+	u32 guest_es_ar_bytes;
+	u32 guest_cs_ar_bytes;
+	u32 guest_ss_ar_bytes;
+	u32 guest_ds_ar_bytes;
+	u32 guest_fs_ar_bytes;
+	u32 guest_gs_ar_bytes;
+	u32 guest_ldtr_ar_bytes;
+	u32 guest_tr_ar_bytes;
+
+	u64 guest_es_base;
+	u64 guest_cs_base;
+	u64 guest_ss_base;
+	u64 guest_ds_base;
+	u64 guest_fs_base;
+	u64 guest_gs_base;
+	u64 guest_ldtr_base;
+	u64 guest_tr_base;
+	u64 guest_gdtr_base;
+	u64 guest_idtr_base;
+
+	u64 padding64_1[3];
+
+	u64 vm_exit_msr_store_addr;
+	u64 vm_exit_msr_load_addr;
+	u64 vm_entry_msr_load_addr;
+
+	u64 cr3_target_value0;
+	u64 cr3_target_value1;
+	u64 cr3_target_value2;
+	u64 cr3_target_value3;
+
+	u32 page_fault_error_code_mask;
+	u32 page_fault_error_code_match;
+
+	u32 cr3_target_count;
+	u32 vm_exit_msr_store_count;
+	u32 vm_exit_msr_load_count;
+	u32 vm_entry_msr_load_count;
+
+	u64 tsc_offset;
+	u64 virtual_apic_page_addr;
+	u64 vmcs_link_pointer;
+
+	u64 guest_ia32_debugctl;
+	u64 guest_ia32_pat;
+	u64 guest_ia32_efer;
+
+	u64 guest_pdptr0;
+	u64 guest_pdptr1;
+	u64 guest_pdptr2;
+	u64 guest_pdptr3;
+
+	u64 guest_pending_dbg_exceptions;
+	u64 guest_sysenter_esp;
+	u64 guest_sysenter_eip;
+
+	u32 guest_activity_state;
+	u32 guest_sysenter_cs;
+
+	u64 cr0_guest_host_mask;
+	u64 cr4_guest_host_mask;
+	u64 cr0_read_shadow;
+	u64 cr4_read_shadow;
+	u64 guest_cr0;
+	u64 guest_cr3;
+	u64 guest_cr4;
+	u64 guest_dr7;
+
+	u64 host_fs_base;
+	u64 host_gs_base;
+	u64 host_tr_base;
+	u64 host_gdtr_base;
+	u64 host_idtr_base;
+	u64 host_rsp;
+
+	u64 ept_pointer;
+
+	u16 virtual_processor_id;
+	u16 padding16[3];
+
+	u64 padding64_2[5];
+	u64 guest_physical_address;
+
+	u32 vm_instruction_error;
+	u32 vm_exit_reason;
+	u32 vm_exit_intr_info;
+	u32 vm_exit_intr_error_code;
+	u32 idt_vectoring_info_field;
+	u32 idt_vectoring_error_code;
+	u32 vm_exit_instruction_len;
+	u32 vmx_instruction_info;
+
+	u64 exit_qualification;
+	u64 exit_io_instruction_ecx;
+	u64 exit_io_instruction_esi;
+	u64 exit_io_instruction_edi;
+	u64 exit_io_instruction_eip;
+
+	u64 guest_linear_address;
+	u64 guest_rsp;
+	u64 guest_rflags;
+
+	u32 guest_interruptibility_info;
+	u32 cpu_based_vm_exec_control;
+	u32 exception_bitmap;
+	u32 vm_entry_controls;
+	u32 vm_entry_intr_info_field;
+	u32 vm_entry_exception_error_code;
+	u32 vm_entry_instruction_len;
+	u32 tpr_threshold;
+
+	u64 guest_rip;
+
+	u32 hv_clean_fields;
+	u32 hv_padding_32;
+	u32 hv_synthetic_controls;
+	u32 hv_enlightenments_control;
+	u32 hv_vp_id;
+
+	u64 hv_vm_id;
+	u64 partition_assist_page;
+	u64 padding64_4[4];
+	u64 guest_bndcfgs;
+	u64 padding64_5[7];
+	u64 xss_exit_bitmap;
+	u64 padding64_6[7];
+};
+
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE			0
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP		BIT(0)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP		BIT(1)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2		BIT(2)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1		BIT(3)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_PROC		BIT(4)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT		BIT(5)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_ENTRY		BIT(6)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EXCPN		BIT(7)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR			BIT(8)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT		BIT(9)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC		BIT(10)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1		BIT(11)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2		BIT(12)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER		BIT(13)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1		BIT(14)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_ENLIGHTENMENTSCONTROL	BIT(15)
+
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL			0xFFFF
+
 #define HV_STIMER_ENABLE		(1ULL << 0)
 #define HV_STIMER_PERIODIC		(1ULL << 1)
 #define HV_STIMER_LAZY			(1ULL << 2)
diff --git a/arch/x86/include/asm/kexec-bzimage64.h b/arch/x86/include/asm/kexec-bzimage64.h
index 9f07cff43705..df89ee7d3e9e 100644
--- a/arch/x86/include/asm/kexec-bzimage64.h
+++ b/arch/x86/include/asm/kexec-bzimage64.h
@@ -2,6 +2,6 @@
 #ifndef _ASM_KEXEC_BZIMAGE64_H
 #define _ASM_KEXEC_BZIMAGE64_H
 
-extern struct kexec_file_ops kexec_bzImage64_ops;
+extern const struct kexec_file_ops kexec_bzImage64_ops;
 
 #endif  /* _ASM_KEXE_BZIMAGE64_H */
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index b605a5b6a30c..c25775fad4ed 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -34,6 +34,7 @@
 #include <asm/msr-index.h>
 #include <asm/asm.h>
 #include <asm/kvm_page_track.h>
+#include <asm/hyperv-tlfs.h>
 
 #define KVM_MAX_VCPUS 288
 #define KVM_SOFT_MAX_VCPUS 240
@@ -73,6 +74,7 @@
 #define KVM_REQ_HV_RESET		KVM_ARCH_REQ(20)
 #define KVM_REQ_HV_EXIT			KVM_ARCH_REQ(21)
 #define KVM_REQ_HV_STIMER		KVM_ARCH_REQ(22)
+#define KVM_REQ_LOAD_EOI_EXITMAP	KVM_ARCH_REQ(23)
 
 #define CR0_RESERVED_BITS                                               \
 	(~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \
@@ -498,6 +500,7 @@ struct kvm_vcpu_arch {
 	u64 apic_base;
 	struct kvm_lapic *apic;    /* kernel irqchip context */
 	bool apicv_active;
+	bool load_eoi_exitmap_pending;
 	DECLARE_BITMAP(ioapic_handled_vectors, 256);
 	unsigned long apic_attention;
 	int32_t apic_arb_prio;
@@ -571,7 +574,7 @@ struct kvm_vcpu_arch {
 	} exception;
 
 	struct kvm_queued_interrupt {
-		bool pending;
+		bool injected;
 		bool soft;
 		u8 nr;
 	} interrupt;
@@ -754,6 +757,12 @@ struct kvm_hv {
 	u64 hv_crash_ctl;
 
 	HV_REFERENCE_TSC_PAGE tsc_ref;
+
+	struct idr conn_to_evt;
+
+	u64 hv_reenlightenment_control;
+	u64 hv_tsc_emulation_control;
+	u64 hv_tsc_emulation_status;
 };
 
 enum kvm_irqchip_mode {
@@ -762,15 +771,6 @@ enum kvm_irqchip_mode {
 	KVM_IRQCHIP_SPLIT,        /* created with KVM_CAP_SPLIT_IRQCHIP */
 };
 
-struct kvm_sev_info {
-	bool active;		/* SEV enabled guest */
-	unsigned int asid;	/* ASID used for this guest */
-	unsigned int handle;	/* SEV firmware handle */
-	int fd;			/* SEV device fd */
-	unsigned long pages_locked; /* Number of pages locked */
-	struct list_head regions_list;  /* List of registered regions */
-};
-
 struct kvm_arch {
 	unsigned int n_used_mmu_pages;
 	unsigned int n_requested_mmu_pages;
@@ -800,13 +800,13 @@ struct kvm_arch {
 	struct mutex apic_map_lock;
 	struct kvm_apic_map *apic_map;
 
-	unsigned int tss_addr;
 	bool apic_access_page_done;
 
 	gpa_t wall_clock;
 
-	bool ept_identity_pagetable_done;
-	gpa_t ept_identity_map_addr;
+	bool mwait_in_guest;
+	bool hlt_in_guest;
+	bool pause_in_guest;
 
 	unsigned long irq_sources_bitmap;
 	s64 kvmclock_offset;
@@ -849,17 +849,8 @@ struct kvm_arch {
 
 	bool disabled_lapic_found;
 
-	/* Struct members for AVIC */
-	u32 avic_vm_id;
-	u32 ldr_mode;
-	struct page *avic_logical_id_table_page;
-	struct page *avic_physical_id_table_page;
-	struct hlist_node hnode;
-
 	bool x2apic_format;
 	bool x2apic_broadcast_quirk_disabled;
-
-	struct kvm_sev_info sev_info;
 };
 
 struct kvm_vm_stat {
@@ -936,6 +927,8 @@ struct kvm_x86_ops {
 	bool (*cpu_has_high_real_mode_segbase)(void);
 	void (*cpuid_update)(struct kvm_vcpu *vcpu);
 
+	struct kvm *(*vm_alloc)(void);
+	void (*vm_free)(struct kvm *);
 	int (*vm_init)(struct kvm *kvm);
 	void (*vm_destroy)(struct kvm *kvm);
 
@@ -1007,6 +1000,7 @@ struct kvm_x86_ops {
 	void (*deliver_posted_interrupt)(struct kvm_vcpu *vcpu, int vector);
 	int (*sync_pir_to_irr)(struct kvm_vcpu *vcpu);
 	int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
+	int (*set_identity_map_addr)(struct kvm *kvm, u64 ident_addr);
 	int (*get_tdp_level)(struct kvm_vcpu *vcpu);
 	u64 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio);
 	int (*get_lpage_level)(void);
@@ -1019,6 +1013,7 @@ struct kvm_x86_ops {
 
 	bool (*has_wbinvd_exit)(void);
 
+	u64 (*read_l1_tsc_offset)(struct kvm_vcpu *vcpu);
 	void (*write_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset);
 
 	void (*get_exit_info)(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2);
@@ -1109,6 +1104,17 @@ struct kvm_arch_async_pf {
 
 extern struct kvm_x86_ops *kvm_x86_ops;
 
+#define __KVM_HAVE_ARCH_VM_ALLOC
+static inline struct kvm *kvm_arch_alloc_vm(void)
+{
+	return kvm_x86_ops->vm_alloc();
+}
+
+static inline void kvm_arch_free_vm(struct kvm *kvm)
+{
+	return kvm_x86_ops->vm_free(kvm);
+}
+
 int kvm_mmu_module_init(void);
 void kvm_mmu_module_exit(void);
 
@@ -1187,6 +1193,8 @@ enum emulation_result {
 #define EMULTYPE_SKIP		    (1 << 2)
 #define EMULTYPE_RETRY		    (1 << 3)
 #define EMULTYPE_NO_REEXECUTE	    (1 << 4)
+#define EMULTYPE_NO_UD_ON_FAIL	    (1 << 5)
+#define EMULTYPE_VMWARE		    (1 << 6)
 int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2,
 			    int emulation_type, void *insn, int insn_len);
 
@@ -1204,8 +1212,7 @@ int kvm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr);
 
 struct x86_emulate_ctxt;
 
-int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size, unsigned short port);
-int kvm_fast_pio_in(struct kvm_vcpu *vcpu, int size, unsigned short port);
+int kvm_fast_pio(struct kvm_vcpu *vcpu, int size, unsigned short port, int in);
 int kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
 int kvm_emulate_halt(struct kvm_vcpu *vcpu);
 int kvm_vcpu_halt(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index 7b407dda2bd7..3aea2658323a 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -88,6 +88,7 @@ static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
 #ifdef CONFIG_KVM_GUEST
 bool kvm_para_available(void);
 unsigned int kvm_arch_para_features(void);
+unsigned int kvm_arch_para_hints(void);
 void kvm_async_pf_task_wait(u32 token, int interrupt_kernel);
 void kvm_async_pf_task_wake(u32 token);
 u32 kvm_read_and_reset_pf_reason(void);
@@ -115,6 +116,11 @@ static inline unsigned int kvm_arch_para_features(void)
 	return 0;
 }
 
+static inline unsigned int kvm_arch_para_hints(void)
+{
+	return 0;
+}
+
 static inline u32 kvm_read_and_reset_pf_reason(void)
 {
 	return 0;
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h
index e73c4d0c06ad..b90e79610cf7 100644
--- a/arch/x86/include/asm/mshyperv.h
+++ b/arch/x86/include/asm/mshyperv.h
@@ -6,90 +6,23 @@
 #include <linux/atomic.h>
 #include <linux/nmi.h>
 #include <asm/io.h>
-#include <asm/hyperv.h>
+#include <asm/hyperv-tlfs.h>
 #include <asm/nospec-branch.h>
 
-/*
- * The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent
- * is set by CPUID(HVCPUID_VERSION_FEATURES).
- */
-enum hv_cpuid_function {
-	HVCPUID_VERSION_FEATURES		= 0x00000001,
-	HVCPUID_VENDOR_MAXFUNCTION		= 0x40000000,
-	HVCPUID_INTERFACE			= 0x40000001,
-
-	/*
-	 * The remaining functions depend on the value of
-	 * HVCPUID_INTERFACE
-	 */
-	HVCPUID_VERSION				= 0x40000002,
-	HVCPUID_FEATURES			= 0x40000003,
-	HVCPUID_ENLIGHTENMENT_INFO		= 0x40000004,
-	HVCPUID_IMPLEMENTATION_LIMITS		= 0x40000005,
-};
-
 struct ms_hyperv_info {
 	u32 features;
 	u32 misc_features;
 	u32 hints;
+	u32 nested_features;
 	u32 max_vp_index;
 	u32 max_lp_index;
 };
 
 extern struct ms_hyperv_info ms_hyperv;
 
-/*
- * Declare the MSR used to setup pages used to communicate with the hypervisor.
- */
-union hv_x64_msr_hypercall_contents {
-	u64 as_uint64;
-	struct {
-		u64 enable:1;
-		u64 reserved:11;
-		u64 guest_physical_address:52;
-	};
-};
 
 /*
- * TSC page layout.
- */
-
-struct ms_hyperv_tsc_page {
-	volatile u32 tsc_sequence;
-	u32 reserved1;
-	volatile u64 tsc_scale;
-	volatile s64 tsc_offset;
-	u64 reserved2[509];
-};
-
-/*
- * The guest OS needs to register the guest ID with the hypervisor.
- * The guest ID is a 64 bit entity and the structure of this ID is
- * specified in the Hyper-V specification:
- *
- * msdn.microsoft.com/en-us/library/windows/hardware/ff542653%28v=vs.85%29.aspx
- *
- * While the current guideline does not specify how Linux guest ID(s)
- * need to be generated, our plan is to publish the guidelines for
- * Linux and other guest operating systems that currently are hosted
- * on Hyper-V. The implementation here conforms to this yet
- * unpublished guidelines.
- *
- *
- * Bit(s)
- * 63 - Indicates if the OS is Open Source or not; 1 is Open Source
- * 62:56 - Os Type; Linux is 0x100
- * 55:48 - Distro specific identification
- * 47:16 - Linux kernel version number
- * 15:0  - Distro specific identification
- *
- *
- */
-
-#define HV_LINUX_VENDOR_ID              0x8100
-
-/*
- * Generate the guest ID based on the guideline described above.
+ * Generate the guest ID.
  */
 
 static inline  __u64 generate_guest_id(__u64 d_info1, __u64 kernel_version,
@@ -228,14 +161,6 @@ static inline u64 hv_do_hypercall(u64 control, void *input, void *output)
 	return hv_status;
 }
 
-#define HV_HYPERCALL_RESULT_MASK	GENMASK_ULL(15, 0)
-#define HV_HYPERCALL_FAST_BIT		BIT(16)
-#define HV_HYPERCALL_VARHEAD_OFFSET	17
-#define HV_HYPERCALL_REP_COMP_OFFSET	32
-#define HV_HYPERCALL_REP_COMP_MASK	GENMASK_ULL(43, 32)
-#define HV_HYPERCALL_REP_START_OFFSET	48
-#define HV_HYPERCALL_REP_START_MASK	GENMASK_ULL(59, 48)
-
 /* Fast hypercall with 8 bytes of input and no output */
 static inline u64 hv_do_fast_hypercall8(u16 code, u64 input1)
 {
@@ -307,6 +232,15 @@ static inline u64 hv_do_rep_hypercall(u16 code, u16 rep_count, u16 varhead_size,
  */
 extern u32 *hv_vp_index;
 extern u32 hv_max_vp_index;
+extern struct hv_vp_assist_page **hv_vp_assist_page;
+
+static inline struct hv_vp_assist_page *hv_get_vp_assist_page(unsigned int cpu)
+{
+	if (!hv_vp_assist_page)
+		return NULL;
+
+	return hv_vp_assist_page[cpu];
+}
 
 /**
  * hv_cpu_number_to_vp_number() - Map CPU to VP.
@@ -343,6 +277,10 @@ static inline void hyperv_setup_mmu_ops(void) {}
 static inline void set_hv_tscchange_cb(void (*cb)(void)) {}
 static inline void clear_hv_tscchange_cb(void) {}
 static inline void hyperv_stop_tsc_emulation(void) {};
+static inline struct hv_vp_assist_page *hv_get_vp_assist_page(unsigned int cpu)
+{
+	return NULL;
+}
 #endif /* CONFIG_HYPERV */
 
 #ifdef CONFIG_HYPERV_TSCPAGE
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index c9084dedfcfa..53d5b1b9255e 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -353,7 +353,21 @@
 
 /* Fam 15h MSRs */
 #define MSR_F15H_PERF_CTL		0xc0010200
+#define MSR_F15H_PERF_CTL0		MSR_F15H_PERF_CTL
+#define MSR_F15H_PERF_CTL1		(MSR_F15H_PERF_CTL + 2)
+#define MSR_F15H_PERF_CTL2		(MSR_F15H_PERF_CTL + 4)
+#define MSR_F15H_PERF_CTL3		(MSR_F15H_PERF_CTL + 6)
+#define MSR_F15H_PERF_CTL4		(MSR_F15H_PERF_CTL + 8)
+#define MSR_F15H_PERF_CTL5		(MSR_F15H_PERF_CTL + 10)
+
 #define MSR_F15H_PERF_CTR		0xc0010201
+#define MSR_F15H_PERF_CTR0		MSR_F15H_PERF_CTR
+#define MSR_F15H_PERF_CTR1		(MSR_F15H_PERF_CTR + 2)
+#define MSR_F15H_PERF_CTR2		(MSR_F15H_PERF_CTR + 4)
+#define MSR_F15H_PERF_CTR3		(MSR_F15H_PERF_CTR + 6)
+#define MSR_F15H_PERF_CTR4		(MSR_F15H_PERF_CTR + 8)
+#define MSR_F15H_PERF_CTR5		(MSR_F15H_PERF_CTR + 10)
+
 #define MSR_F15H_NB_PERF_CTL		0xc0010240
 #define MSR_F15H_NB_PERF_CTR		0xc0010241
 #define MSR_F15H_PTSC			0xc0010280
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 89d5c8886c85..5f49b4ff0c24 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -526,22 +526,39 @@ static inline pgprotval_t massage_pgprot(pgprot_t pgprot)
 	return protval;
 }
 
+static inline pgprotval_t check_pgprot(pgprot_t pgprot)
+{
+	pgprotval_t massaged_val = massage_pgprot(pgprot);
+
+	/* mmdebug.h can not be included here because of dependencies */
+#ifdef CONFIG_DEBUG_VM
+	WARN_ONCE(pgprot_val(pgprot) != massaged_val,
+		  "attempted to set unsupported pgprot: %016llx "
+		  "bits: %016llx supported: %016llx\n",
+		  (u64)pgprot_val(pgprot),
+		  (u64)pgprot_val(pgprot) ^ massaged_val,
+		  (u64)__supported_pte_mask);
+#endif
+
+	return massaged_val;
+}
+
 static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
 {
 	return __pte(((phys_addr_t)page_nr << PAGE_SHIFT) |
-		     massage_pgprot(pgprot));
+		     check_pgprot(pgprot));
 }
 
 static inline pmd_t pfn_pmd(unsigned long page_nr, pgprot_t pgprot)
 {
 	return __pmd(((phys_addr_t)page_nr << PAGE_SHIFT) |
-		     massage_pgprot(pgprot));
+		     check_pgprot(pgprot));
 }
 
 static inline pud_t pfn_pud(unsigned long page_nr, pgprot_t pgprot)
 {
 	return __pud(((phys_addr_t)page_nr << PAGE_SHIFT) |
-		     massage_pgprot(pgprot));
+		     check_pgprot(pgprot));
 }
 
 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
@@ -553,7 +570,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 	 * the newprot (if present):
 	 */
 	val &= _PAGE_CHG_MASK;
-	val |= massage_pgprot(newprot) & ~_PAGE_CHG_MASK;
+	val |= check_pgprot(newprot) & ~_PAGE_CHG_MASK;
 
 	return __pte(val);
 }
@@ -563,7 +580,7 @@ static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
 	pmdval_t val = pmd_val(pmd);
 
 	val &= _HPAGE_CHG_MASK;
-	val |= massage_pgprot(newprot) & ~_HPAGE_CHG_MASK;
+	val |= check_pgprot(newprot) & ~_HPAGE_CHG_MASK;
 
 	return __pmd(val);
 }
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index acfe755562a6..1e5a40673953 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -196,19 +196,21 @@ enum page_cache_mode {
 #define __PAGE_KERNEL_NOENC	(__PAGE_KERNEL)
 #define __PAGE_KERNEL_NOENC_WP	(__PAGE_KERNEL_WP)
 
-#define PAGE_KERNEL		__pgprot(__PAGE_KERNEL | _PAGE_ENC)
-#define PAGE_KERNEL_NOENC	__pgprot(__PAGE_KERNEL)
-#define PAGE_KERNEL_RO		__pgprot(__PAGE_KERNEL_RO | _PAGE_ENC)
-#define PAGE_KERNEL_EXEC	__pgprot(__PAGE_KERNEL_EXEC | _PAGE_ENC)
-#define PAGE_KERNEL_EXEC_NOENC	__pgprot(__PAGE_KERNEL_EXEC)
-#define PAGE_KERNEL_RX		__pgprot(__PAGE_KERNEL_RX | _PAGE_ENC)
-#define PAGE_KERNEL_NOCACHE	__pgprot(__PAGE_KERNEL_NOCACHE | _PAGE_ENC)
-#define PAGE_KERNEL_LARGE	__pgprot(__PAGE_KERNEL_LARGE | _PAGE_ENC)
-#define PAGE_KERNEL_LARGE_EXEC	__pgprot(__PAGE_KERNEL_LARGE_EXEC | _PAGE_ENC)
-#define PAGE_KERNEL_VVAR	__pgprot(__PAGE_KERNEL_VVAR | _PAGE_ENC)
-
-#define PAGE_KERNEL_IO		__pgprot(__PAGE_KERNEL_IO)
-#define PAGE_KERNEL_IO_NOCACHE	__pgprot(__PAGE_KERNEL_IO_NOCACHE)
+#define default_pgprot(x)	__pgprot((x) & __default_kernel_pte_mask)
+
+#define PAGE_KERNEL		default_pgprot(__PAGE_KERNEL | _PAGE_ENC)
+#define PAGE_KERNEL_NOENC	default_pgprot(__PAGE_KERNEL)
+#define PAGE_KERNEL_RO		default_pgprot(__PAGE_KERNEL_RO | _PAGE_ENC)
+#define PAGE_KERNEL_EXEC	default_pgprot(__PAGE_KERNEL_EXEC | _PAGE_ENC)
+#define PAGE_KERNEL_EXEC_NOENC	default_pgprot(__PAGE_KERNEL_EXEC)
+#define PAGE_KERNEL_RX		default_pgprot(__PAGE_KERNEL_RX | _PAGE_ENC)
+#define PAGE_KERNEL_NOCACHE	default_pgprot(__PAGE_KERNEL_NOCACHE | _PAGE_ENC)
+#define PAGE_KERNEL_LARGE	default_pgprot(__PAGE_KERNEL_LARGE | _PAGE_ENC)
+#define PAGE_KERNEL_LARGE_EXEC	default_pgprot(__PAGE_KERNEL_LARGE_EXEC | _PAGE_ENC)
+#define PAGE_KERNEL_VVAR	default_pgprot(__PAGE_KERNEL_VVAR | _PAGE_ENC)
+
+#define PAGE_KERNEL_IO		default_pgprot(__PAGE_KERNEL_IO)
+#define PAGE_KERNEL_IO_NOCACHE	default_pgprot(__PAGE_KERNEL_IO_NOCACHE)
 
 #endif	/* __ASSEMBLY__ */
 
@@ -483,6 +485,7 @@ static inline pgprot_t pgprot_large_2_4k(pgprot_t pgprot)
 typedef struct page *pgtable_t;
 
 extern pteval_t __supported_pte_mask;
+extern pteval_t __default_kernel_pte_mask;
 extern void set_nx(void);
 extern int nx_enabled;
 
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index b0ccd4847a58..4fa4206029e3 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -407,9 +407,19 @@ union irq_stack_union {
 DECLARE_PER_CPU_FIRST(union irq_stack_union, irq_stack_union) __visible;
 DECLARE_INIT_PER_CPU(irq_stack_union);
 
+static inline unsigned long cpu_kernelmode_gs_base(int cpu)
+{
+	return (unsigned long)per_cpu(irq_stack_union.gs_base, cpu);
+}
+
 DECLARE_PER_CPU(char *, irq_stack_ptr);
 DECLARE_PER_CPU(unsigned int, irq_count);
 extern asmlinkage void ignore_sysret(void);
+
+#if IS_ENABLED(CONFIG_KVM)
+/* Save actual FS/GS selectors and bases to current->thread */
+void save_fsgs_for_kvm(void);
+#endif
 #else	/* X86_64 */
 #ifdef CONFIG_CC_STACKPROTECTOR
 /*
diff --git a/arch/x86/include/asm/pti.h b/arch/x86/include/asm/pti.h
index 0b5ef05b2d2d..38a17f1d5c9d 100644
--- a/arch/x86/include/asm/pti.h
+++ b/arch/x86/include/asm/pti.h
@@ -6,8 +6,10 @@
 #ifdef CONFIG_PAGE_TABLE_ISOLATION
 extern void pti_init(void);
 extern void pti_check_boottime_disable(void);
+extern void pti_clone_kernel_text(void);
 #else
 static inline void pti_check_boottime_disable(void) { }
+static inline void pti_clone_kernel_text(void) { }
 #endif
 
 #endif /* __ASSEMBLY__ */
diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h
index 0487ac054870..93b462e48067 100644
--- a/arch/x86/include/asm/svm.h
+++ b/arch/x86/include/asm/svm.h
@@ -60,7 +60,8 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
 	u32 intercept_dr;
 	u32 intercept_exceptions;
 	u64 intercept;
-	u8 reserved_1[42];
+	u8 reserved_1[40];
+	u16 pause_filter_thresh;
 	u16 pause_filter_count;
 	u64 iopm_base_pa;
 	u64 msrpm_base_pa;
diff --git a/arch/x86/include/asm/syscall.h b/arch/x86/include/asm/syscall.h
index 03eedc21246d..d653139857af 100644
--- a/arch/x86/include/asm/syscall.h
+++ b/arch/x86/include/asm/syscall.h
@@ -20,9 +20,13 @@
 #include <asm/thread_info.h>	/* for TS_COMPAT */
 #include <asm/unistd.h>
 
+#ifdef CONFIG_X86_64
+typedef asmlinkage long (*sys_call_ptr_t)(const struct pt_regs *);
+#else
 typedef asmlinkage long (*sys_call_ptr_t)(unsigned long, unsigned long,
 					  unsigned long, unsigned long,
 					  unsigned long, unsigned long);
+#endif /* CONFIG_X86_64 */
 extern const sys_call_ptr_t sys_call_table[];
 
 #if defined(CONFIG_X86_32)
diff --git a/arch/x86/include/asm/syscall_wrapper.h b/arch/x86/include/asm/syscall_wrapper.h
new file mode 100644
index 000000000000..e046a405743d
--- /dev/null
+++ b/arch/x86/include/asm/syscall_wrapper.h
@@ -0,0 +1,209 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * syscall_wrapper.h - x86 specific wrappers to syscall definitions
+ */
+
+#ifndef _ASM_X86_SYSCALL_WRAPPER_H
+#define _ASM_X86_SYSCALL_WRAPPER_H
+
+/* Mapping of registers to parameters for syscalls on x86-64 and x32 */
+#define SC_X86_64_REGS_TO_ARGS(x, ...)					\
+	__MAP(x,__SC_ARGS						\
+		,,regs->di,,regs->si,,regs->dx				\
+		,,regs->r10,,regs->r8,,regs->r9)			\
+
+/* Mapping of registers to parameters for syscalls on i386 */
+#define SC_IA32_REGS_TO_ARGS(x, ...)					\
+	__MAP(x,__SC_ARGS						\
+	      ,,(unsigned int)regs->bx,,(unsigned int)regs->cx		\
+	      ,,(unsigned int)regs->dx,,(unsigned int)regs->si		\
+	      ,,(unsigned int)regs->di,,(unsigned int)regs->bp)
+
+#ifdef CONFIG_IA32_EMULATION
+/*
+ * For IA32 emulation, we need to handle "compat" syscalls *and* create
+ * additional wrappers (aptly named __ia32_sys_xyzzy) which decode the
+ * ia32 regs in the proper order for shared or "common" syscalls. As some
+ * syscalls may not be implemented, we need to expand COND_SYSCALL in
+ * kernel/sys_ni.c and SYS_NI in kernel/time/posix-stubs.c to cover this
+ * case as well.
+ */
+#define __IA32_COMPAT_SYS_STUBx(x, name, ...)				\
+	asmlinkage long __ia32_compat_sys##name(const struct pt_regs *regs);\
+	ALLOW_ERROR_INJECTION(__ia32_compat_sys##name, ERRNO);		\
+	asmlinkage long __ia32_compat_sys##name(const struct pt_regs *regs)\
+	{								\
+		return __se_compat_sys##name(SC_IA32_REGS_TO_ARGS(x,__VA_ARGS__));\
+	}								\
+
+#define __IA32_SYS_STUBx(x, name, ...)					\
+	asmlinkage long __ia32_sys##name(const struct pt_regs *regs);	\
+	ALLOW_ERROR_INJECTION(__ia32_sys##name, ERRNO);			\
+	asmlinkage long __ia32_sys##name(const struct pt_regs *regs)	\
+	{								\
+		return __se_sys##name(SC_IA32_REGS_TO_ARGS(x,__VA_ARGS__));\
+	}
+
+/*
+ * To keep the naming coherent, re-define SYSCALL_DEFINE0 to create an alias
+ * named __ia32_sys_*()
+ */
+#define SYSCALL_DEFINE0(sname)					\
+	SYSCALL_METADATA(_##sname, 0);				\
+	asmlinkage long __x64_sys_##sname(void);		\
+	ALLOW_ERROR_INJECTION(__x64_sys_##sname, ERRNO);	\
+	SYSCALL_ALIAS(__ia32_sys_##sname, __x64_sys_##sname);	\
+	asmlinkage long __x64_sys_##sname(void)
+
+#define COND_SYSCALL(name)						\
+	cond_syscall(__x64_sys_##name);					\
+	cond_syscall(__ia32_sys_##name)
+
+#define SYS_NI(name)							\
+	SYSCALL_ALIAS(__x64_sys_##name, sys_ni_posix_timers);		\
+	SYSCALL_ALIAS(__ia32_sys_##name, sys_ni_posix_timers)
+
+#else /* CONFIG_IA32_EMULATION */
+#define __IA32_COMPAT_SYS_STUBx(x, name, ...)
+#define __IA32_SYS_STUBx(x, fullname, name, ...)
+#endif /* CONFIG_IA32_EMULATION */
+
+
+#ifdef CONFIG_X86_X32
+/*
+ * For the x32 ABI, we need to create a stub for compat_sys_*() which is aware
+ * of the x86-64-style parameter ordering of x32 syscalls. The syscalls common
+ * with x86_64 obviously do not need such care.
+ */
+#define __X32_COMPAT_SYS_STUBx(x, name, ...)				\
+	asmlinkage long __x32_compat_sys##name(const struct pt_regs *regs);\
+	ALLOW_ERROR_INJECTION(__x32_compat_sys##name, ERRNO);		\
+	asmlinkage long __x32_compat_sys##name(const struct pt_regs *regs)\
+	{								\
+		return __se_compat_sys##name(SC_X86_64_REGS_TO_ARGS(x,__VA_ARGS__));\
+	}								\
+
+#else /* CONFIG_X86_X32 */
+#define __X32_COMPAT_SYS_STUBx(x, name, ...)
+#endif /* CONFIG_X86_X32 */
+
+
+#ifdef CONFIG_COMPAT
+/*
+ * Compat means IA32_EMULATION and/or X86_X32. As they use a different
+ * mapping of registers to parameters, we need to generate stubs for each
+ * of them.
+ */
+#define COMPAT_SYSCALL_DEFINEx(x, name, ...)					\
+	static long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__));	\
+	static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
+	__IA32_COMPAT_SYS_STUBx(x, name, __VA_ARGS__)				\
+	__X32_COMPAT_SYS_STUBx(x, name, __VA_ARGS__)				\
+	static long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
+	{									\
+		return __do_compat_sys##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__));\
+	}									\
+	static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
+
+/*
+ * As some compat syscalls may not be implemented, we need to expand
+ * COND_SYSCALL_COMPAT in kernel/sys_ni.c and COMPAT_SYS_NI in
+ * kernel/time/posix-stubs.c to cover this case as well.
+ */
+#define COND_SYSCALL_COMPAT(name) 					\
+	cond_syscall(__ia32_compat_sys_##name);				\
+	cond_syscall(__x32_compat_sys_##name)
+
+#define COMPAT_SYS_NI(name)						\
+	SYSCALL_ALIAS(__ia32_compat_sys_##name, sys_ni_posix_timers);	\
+	SYSCALL_ALIAS(__x32_compat_sys_##name, sys_ni_posix_timers)
+
+#endif /* CONFIG_COMPAT */
+
+
+/*
+ * Instead of the generic __SYSCALL_DEFINEx() definition, this macro takes
+ * struct pt_regs *regs as the only argument of the syscall stub named
+ * __x64_sys_*(). It decodes just the registers it needs and passes them on to
+ * the __se_sys_*() wrapper performing sign extension and then to the
+ * __do_sys_*() function doing the actual job. These wrappers and functions
+ * are inlined (at least in very most cases), meaning that the assembly looks
+ * as follows (slightly re-ordered for better readability):
+ *
+ * <__x64_sys_recv>:		<-- syscall with 4 parameters
+ *	callq	<__fentry__>
+ *
+ *	mov	0x70(%rdi),%rdi	<-- decode regs->di
+ *	mov	0x68(%rdi),%rsi	<-- decode regs->si
+ *	mov	0x60(%rdi),%rdx	<-- decode regs->dx
+ *	mov	0x38(%rdi),%rcx	<-- decode regs->r10
+ *
+ *	xor	%r9d,%r9d	<-- clear %r9
+ *	xor	%r8d,%r8d	<-- clear %r8
+ *
+ *	callq	__sys_recvfrom	<-- do the actual work in __sys_recvfrom()
+ *				    which takes 6 arguments
+ *
+ *	cltq			<-- extend return value to 64-bit
+ *	retq			<-- return
+ *
+ * This approach avoids leaking random user-provided register content down
+ * the call chain.
+ *
+ * If IA32_EMULATION is enabled, this macro generates an additional wrapper
+ * named __ia32_sys_*() which decodes the struct pt_regs *regs according
+ * to the i386 calling convention (bx, cx, dx, si, di, bp).
+ */
+#define __SYSCALL_DEFINEx(x, name, ...)					\
+	asmlinkage long __x64_sys##name(const struct pt_regs *regs);	\
+	ALLOW_ERROR_INJECTION(__x64_sys##name, ERRNO);			\
+	static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__));	\
+	static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
+	asmlinkage long __x64_sys##name(const struct pt_regs *regs)	\
+	{								\
+		return __se_sys##name(SC_X86_64_REGS_TO_ARGS(x,__VA_ARGS__));\
+	}								\
+	__IA32_SYS_STUBx(x, name, __VA_ARGS__)				\
+	static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
+	{								\
+		long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
+		__MAP(x,__SC_TEST,__VA_ARGS__);				\
+		__PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__));	\
+		return ret;						\
+	}								\
+	static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
+
+/*
+ * As the generic SYSCALL_DEFINE0() macro does not decode any parameters for
+ * obvious reasons, and passing struct pt_regs *regs to it in %rdi does not
+ * hurt, we only need to re-define it here to keep the naming congruent to
+ * SYSCALL_DEFINEx() -- which is essential for the COND_SYSCALL() and SYS_NI()
+ * macros to work correctly.
+ */
+#ifndef SYSCALL_DEFINE0
+#define SYSCALL_DEFINE0(sname)					\
+	SYSCALL_METADATA(_##sname, 0);				\
+	asmlinkage long __x64_sys_##sname(void);		\
+	ALLOW_ERROR_INJECTION(__x64_sys_##sname, ERRNO);	\
+	asmlinkage long __x64_sys_##sname(void)
+#endif
+
+#ifndef COND_SYSCALL
+#define COND_SYSCALL(name) cond_syscall(__x64_sys_##name)
+#endif
+
+#ifndef SYS_NI
+#define SYS_NI(name) SYSCALL_ALIAS(__x64_sys_##name, sys_ni_posix_timers);
+#endif
+
+
+/*
+ * For VSYSCALLS, we need to declare these three syscalls with the new
+ * pt_regs-based calling convention for in-kernel use.
+ */
+struct pt_regs;
+asmlinkage long __x64_sys_getcpu(const struct pt_regs *regs);
+asmlinkage long __x64_sys_gettimeofday(const struct pt_regs *regs);
+asmlinkage long __x64_sys_time(const struct pt_regs *regs);
+
+#endif /* _ASM_X86_SYSCALL_WRAPPER_H */
diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h
index ae6e05fdc24b..9fa979dd0d9d 100644
--- a/arch/x86/include/asm/syscalls.h
+++ b/arch/x86/include/asm/syscalls.h
@@ -18,6 +18,12 @@
 /* Common in X86_32 and X86_64 */
 /* kernel/ioport.c */
 long ksys_ioperm(unsigned long from, unsigned long num, int turn_on);
+
+#ifdef CONFIG_X86_32
+/*
+ * These definitions are only valid on pure 32-bit systems; x86-64 uses a
+ * different syscall calling convention
+ */
 asmlinkage long sys_ioperm(unsigned long, unsigned long, int);
 asmlinkage long sys_iopl(unsigned int);
 
@@ -32,7 +38,6 @@ asmlinkage long sys_set_thread_area(struct user_desc __user *);
 asmlinkage long sys_get_thread_area(struct user_desc __user *);
 
 /* X86_32 only */
-#ifdef CONFIG_X86_32
 
 /* kernel/signal.c */
 asmlinkage long sys_sigreturn(void);
@@ -42,15 +47,5 @@ struct vm86_struct;
 asmlinkage long sys_vm86old(struct vm86_struct __user *);
 asmlinkage long sys_vm86(unsigned long, unsigned long);
 
-#else /* CONFIG_X86_32 */
-
-/* X86_64 only */
-/* kernel/process_64.c */
-asmlinkage long sys_arch_prctl(int, unsigned long);
-
-/* kernel/sys_x86_64.c */
-asmlinkage long sys_mmap(unsigned long, unsigned long, unsigned long,
-			 unsigned long, unsigned long, unsigned long);
-
 #endif /* CONFIG_X86_32 */
 #endif /* _ASM_X86_SYSCALLS_H */
diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
index 84137c22fdfa..6690cd3fc8b1 100644
--- a/arch/x86/include/asm/tlbflush.h
+++ b/arch/x86/include/asm/tlbflush.h
@@ -131,7 +131,12 @@ static inline unsigned long build_cr3(pgd_t *pgd, u16 asid)
 static inline unsigned long build_cr3_noflush(pgd_t *pgd, u16 asid)
 {
 	VM_WARN_ON_ONCE(asid > MAX_ASID_AVAILABLE);
-	VM_WARN_ON_ONCE(!this_cpu_has(X86_FEATURE_PCID));
+	/*
+	 * Use boot_cpu_has() instead of this_cpu_has() as this function
+	 * might be called during early boot. This should work even after
+	 * boot because all CPU's the have same capabilities:
+	 */
+	VM_WARN_ON_ONCE(!boot_cpu_has(X86_FEATURE_PCID));
 	return __sme_pa(pgd) | kern_pcid(asid) | CR3_NOFLUSH;
 }
 
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 199e15bd3ec5..ce8b4da07e35 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -122,12 +122,14 @@ struct x86_init_pci {
  * @guest_late_init:		guest late init
  * @x2apic_available:		X2APIC detection
  * @init_mem_mapping:		setup early mappings during init_mem_mapping()
+ * @init_after_bootmem:		guest init after boot allocator is finished
  */
 struct x86_hyper_init {
 	void (*init_platform)(void);
 	void (*guest_late_init)(void);
 	bool (*x2apic_available)(void);
 	void (*init_mem_mapping)(void);
+	void (*init_after_bootmem)(void);
 };
 
 /**
diff --git a/arch/x86/include/uapi/asm/bootparam.h b/arch/x86/include/uapi/asm/bootparam.h
index aebf60357758..a06cbf019744 100644
--- a/arch/x86/include/uapi/asm/bootparam.h
+++ b/arch/x86/include/uapi/asm/bootparam.h
@@ -137,15 +137,15 @@ struct boot_e820_entry {
  * setup data structure.
  */
 struct jailhouse_setup_data {
-	u16	version;
-	u16	compatible_version;
-	u16	pm_timer_address;
-	u16	num_cpus;
-	u64	pci_mmconfig_base;
-	u32	tsc_khz;
-	u32	apic_khz;
-	u8	standard_ioapic;
-	u8	cpu_ids[255];
+	__u16	version;
+	__u16	compatible_version;
+	__u16	pm_timer_address;
+	__u16	num_cpus;
+	__u64	pci_mmconfig_base;
+	__u32	tsc_khz;
+	__u32	apic_khz;
+	__u8	standard_ioapic;
+	__u8	cpu_ids[255];
 } __attribute__((packed));
 
 /* The so-called "zeropage" */
diff --git a/arch/x86/include/uapi/asm/kvm.h b/arch/x86/include/uapi/asm/kvm.h
index f3a960488eae..c535c2fdea13 100644
--- a/arch/x86/include/uapi/asm/kvm.h
+++ b/arch/x86/include/uapi/asm/kvm.h
@@ -354,8 +354,25 @@ struct kvm_xcrs {
 	__u64 padding[16];
 };
 
-/* definition of registers in kvm_run */
+#define KVM_SYNC_X86_REGS      (1UL << 0)
+#define KVM_SYNC_X86_SREGS     (1UL << 1)
+#define KVM_SYNC_X86_EVENTS    (1UL << 2)
+
+#define KVM_SYNC_X86_VALID_FIELDS \
+	(KVM_SYNC_X86_REGS| \
+	 KVM_SYNC_X86_SREGS| \
+	 KVM_SYNC_X86_EVENTS)
+
+/* kvm_sync_regs struct included by kvm_run struct */
 struct kvm_sync_regs {
+	/* Members of this structure are potentially malicious.
+	 * Care must be taken by code reading, esp. interpreting,
+	 * data fields from them inside KVM to prevent TOCTOU and
+	 * double-fetch types of vulnerabilities.
+	 */
+	struct kvm_regs regs;
+	struct kvm_sregs sregs;
+	struct kvm_vcpu_events events;
 };
 
 #define KVM_X86_QUIRK_LINT0_REENABLED	(1 << 0)
diff --git a/arch/x86/include/uapi/asm/kvm_para.h b/arch/x86/include/uapi/asm/kvm_para.h
index 6cfa9c8cb7d6..4c851ebb3ceb 100644
--- a/arch/x86/include/uapi/asm/kvm_para.h
+++ b/arch/x86/include/uapi/asm/kvm_para.h
@@ -3,15 +3,16 @@
 #define _UAPI_ASM_X86_KVM_PARA_H
 
 #include <linux/types.h>
-#include <asm/hyperv.h>
 
 /* This CPUID returns the signature 'KVMKVMKVM' in ebx, ecx, and edx.  It
  * should be used to determine that a VM is running under KVM.
  */
 #define KVM_CPUID_SIGNATURE	0x40000000
 
-/* This CPUID returns a feature bitmap in eax.  Before enabling a particular
- * paravirtualization, the appropriate feature bit should be checked.
+/* This CPUID returns two feature bitmaps in eax, edx. Before enabling
+ * a particular paravirtualization, the appropriate feature bit should
+ * be checked in eax. The performance hint feature bit should be checked
+ * in edx.
  */
 #define KVM_CPUID_FEATURES	0x40000001
 #define KVM_FEATURE_CLOCKSOURCE		0
@@ -28,6 +29,8 @@
 #define KVM_FEATURE_PV_TLB_FLUSH	9
 #define KVM_FEATURE_ASYNC_PF_VMEXIT	10
 
+#define KVM_HINTS_DEDICATED      0
+
 /* The last 8 bits are used to indicate how to interpret the flags field
  * in pvclock structure. If no bits are set, all flags are ignored.
  */
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 7a37d9357bc4..dde444f932c1 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -200,7 +200,7 @@ acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end)
 {
 	struct acpi_madt_local_x2apic *processor = NULL;
 #ifdef CONFIG_X86_X2APIC
-	int apic_id;
+	u32 apic_id;
 	u8 enabled;
 #endif
 
@@ -222,10 +222,13 @@ acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end)
 	 * to not preallocating memory for all NR_CPUS
 	 * when we use CPU hotplug.
 	 */
-	if (!apic->apic_id_valid(apic_id) && enabled)
-		printk(KERN_WARNING PREFIX "x2apic entry ignored\n");
-	else
-		acpi_register_lapic(apic_id, processor->uid, enabled);
+	if (!apic->apic_id_valid(apic_id)) {
+		if (enabled)
+			pr_warn(PREFIX "x2apic entry ignored\n");
+		return 0;
+	}
+
+	acpi_register_lapic(apic_id, processor->uid, enabled);
 #else
 	printk(KERN_WARNING PREFIX "x2apic entry ignored\n");
 #endif
diff --git a/arch/x86/kernel/apic/apic_common.c b/arch/x86/kernel/apic/apic_common.c
index a360801779ae..02b4839478b1 100644
--- a/arch/x86/kernel/apic/apic_common.c
+++ b/arch/x86/kernel/apic/apic_common.c
@@ -40,7 +40,7 @@ int default_check_phys_apicid_present(int phys_apicid)
 	return physid_isset(phys_apicid, phys_cpu_present_map);
 }
 
-int default_apic_id_valid(int apicid)
+int default_apic_id_valid(u32 apicid)
 {
 	return (apicid < 255);
 }
diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c
index 134e04506ab4..78778b54f904 100644
--- a/arch/x86/kernel/apic/apic_numachip.c
+++ b/arch/x86/kernel/apic/apic_numachip.c
@@ -56,7 +56,7 @@ static u32 numachip2_set_apic_id(unsigned int id)
 	return id << 24;
 }
 
-static int numachip_apic_id_valid(int apicid)
+static int numachip_apic_id_valid(u32 apicid)
 {
 	/* Trust what bootloader passes in MADT */
 	return 1;
diff --git a/arch/x86/kernel/apic/x2apic.h b/arch/x86/kernel/apic/x2apic.h
index b107de381cb5..a49b3604027f 100644
--- a/arch/x86/kernel/apic/x2apic.h
+++ b/arch/x86/kernel/apic/x2apic.h
@@ -1,6 +1,6 @@
 /* Common bits for X2APIC cluster/physical modes. */
 
-int x2apic_apic_id_valid(int apicid);
+int x2apic_apic_id_valid(u32 apicid);
 int x2apic_apic_id_registered(void);
 void __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest);
 unsigned int x2apic_get_apic_id(unsigned long id);
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index e2829bf40e4a..b5cf9e7b3830 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -101,7 +101,7 @@ static int x2apic_phys_probe(void)
 }
 
 /* Common x2apic functions, also used by x2apic_cluster */
-int x2apic_apic_id_valid(int apicid)
+int x2apic_apic_id_valid(u32 apicid)
 {
 	return 1;
 }
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index f11910b44638..efaf2d4f9c3c 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -557,7 +557,7 @@ static void uv_send_IPI_all(int vector)
 	uv_send_IPI_mask(cpu_online_mask, vector);
 }
 
-static int uv_apic_id_valid(int apicid)
+static int uv_apic_id_valid(u32 apicid)
 {
 	return 1;
 }
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 348cf4821240..8a5b185735e1 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -487,7 +487,7 @@ void load_percpu_segment(int cpu)
 	loadsegment(fs, __KERNEL_PERCPU);
 #else
 	__loadsegment_simple(gs, 0);
-	wrmsrl(MSR_GS_BASE, (unsigned long)per_cpu(irq_stack_union.gs_base, cpu));
+	wrmsrl(MSR_GS_BASE, cpu_kernelmode_gs_base(cpu));
 #endif
 	load_stack_canary_segment();
 }
@@ -848,18 +848,6 @@ void get_cpu_cap(struct cpuinfo_x86 *c)
 		c->x86_power = edx;
 	}
 
-	if (c->extended_cpuid_level >= 0x80000008) {
-		cpuid(0x80000008, &eax, &ebx, &ecx, &edx);
-
-		c->x86_virt_bits = (eax >> 8) & 0xff;
-		c->x86_phys_bits = eax & 0xff;
-		c->x86_capability[CPUID_8000_0008_EBX] = ebx;
-	}
-#ifdef CONFIG_X86_32
-	else if (cpu_has(c, X86_FEATURE_PAE) || cpu_has(c, X86_FEATURE_PSE36))
-		c->x86_phys_bits = 36;
-#endif
-
 	if (c->extended_cpuid_level >= 0x8000000a)
 		c->x86_capability[CPUID_8000_000A_EDX] = cpuid_edx(0x8000000a);
 
@@ -874,6 +862,23 @@ void get_cpu_cap(struct cpuinfo_x86 *c)
 	apply_forced_caps(c);
 }
 
+static void get_cpu_address_sizes(struct cpuinfo_x86 *c)
+{
+	u32 eax, ebx, ecx, edx;
+
+	if (c->extended_cpuid_level >= 0x80000008) {
+		cpuid(0x80000008, &eax, &ebx, &ecx, &edx);
+
+		c->x86_virt_bits = (eax >> 8) & 0xff;
+		c->x86_phys_bits = eax & 0xff;
+		c->x86_capability[CPUID_8000_0008_EBX] = ebx;
+	}
+#ifdef CONFIG_X86_32
+	else if (cpu_has(c, X86_FEATURE_PAE) || cpu_has(c, X86_FEATURE_PSE36))
+		c->x86_phys_bits = 36;
+#endif
+}
+
 static void identify_cpu_without_cpuid(struct cpuinfo_x86 *c)
 {
 #ifdef CONFIG_X86_32
@@ -965,6 +970,7 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c)
 		cpu_detect(c);
 		get_cpu_vendor(c);
 		get_cpu_cap(c);
+		get_cpu_address_sizes(c);
 		setup_force_cpu_cap(X86_FEATURE_CPUID);
 
 		if (this_cpu->c_early_init)
@@ -1097,6 +1103,8 @@ static void generic_identify(struct cpuinfo_x86 *c)
 
 	get_cpu_cap(c);
 
+	get_cpu_address_sizes(c);
+
 	if (c->cpuid_level >= 0x00000001) {
 		c->initial_apicid = (cpuid_ebx(1) >> 24) & 0xFF;
 #ifdef CONFIG_X86_32
@@ -1398,6 +1406,7 @@ __setup("clearcpuid=", setup_clearcpuid);
 #ifdef CONFIG_X86_64
 DEFINE_PER_CPU_FIRST(union irq_stack_union,
 		     irq_stack_union) __aligned(PAGE_SIZE) __visible;
+EXPORT_PER_CPU_SYMBOL_GPL(irq_stack_union);
 
 /*
  * The following percpu variables are hot.  Align current_task to
diff --git a/arch/x86/kernel/cpu/cpuid-deps.c b/arch/x86/kernel/cpu/cpuid-deps.c
index 904b0a3c4e53..2c0bd38a44ab 100644
--- a/arch/x86/kernel/cpu/cpuid-deps.c
+++ b/arch/x86/kernel/cpu/cpuid-deps.c
@@ -19,7 +19,7 @@ struct cpuid_dep {
  * called from cpu hotplug. It shouldn't do anything in this case,
  * but it's difficult to tell that to the init reference checker.
  */
-const static struct cpuid_dep cpuid_deps[] = {
+static const struct cpuid_dep cpuid_deps[] = {
 	{ X86_FEATURE_XSAVEOPT,		X86_FEATURE_XSAVE     },
 	{ X86_FEATURE_XSAVEC,		X86_FEATURE_XSAVE     },
 	{ X86_FEATURE_XSAVES,		X86_FEATURE_XSAVE     },
diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index 48179928ff38..0624957aa068 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -58,7 +58,7 @@ static u8 amd_ucode_patch[PATCH_MAX_SIZE];
 
 /*
  * Microcode patch container file is prepended to the initrd in cpio
- * format. See Documentation/x86/early-microcode.txt
+ * format. See Documentation/x86/microcode.txt
  */
 static const char
 ucode_path[] __maybe_unused = "kernel/x86/microcode/AuthenticAMD.bin";
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 4488cf0dd499..031082c96db8 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -22,7 +22,7 @@
 #include <linux/kexec.h>
 #include <asm/processor.h>
 #include <asm/hypervisor.h>
-#include <asm/hyperv.h>
+#include <asm/hyperv-tlfs.h>
 #include <asm/mshyperv.h>
 #include <asm/desc.h>
 #include <asm/irq_regs.h>
@@ -216,8 +216,8 @@ static void __init ms_hyperv_init_platform(void)
 	pr_info("Hyper-V: features 0x%x, hints 0x%x\n",
 		ms_hyperv.features, ms_hyperv.hints);
 
-	ms_hyperv.max_vp_index = cpuid_eax(HVCPUID_IMPLEMENTATION_LIMITS);
-	ms_hyperv.max_lp_index = cpuid_ebx(HVCPUID_IMPLEMENTATION_LIMITS);
+	ms_hyperv.max_vp_index = cpuid_eax(HYPERV_CPUID_IMPLEMENT_LIMITS);
+	ms_hyperv.max_lp_index = cpuid_ebx(HYPERV_CPUID_IMPLEMENT_LIMITS);
 
 	pr_debug("Hyper-V: max %u virtual processors, %u logical processors\n",
 		 ms_hyperv.max_vp_index, ms_hyperv.max_lp_index);
@@ -225,11 +225,12 @@ static void __init ms_hyperv_init_platform(void)
 	/*
 	 * Extract host information.
 	 */
-	if (cpuid_eax(HVCPUID_VENDOR_MAXFUNCTION) >= HVCPUID_VERSION) {
-		hv_host_info_eax = cpuid_eax(HVCPUID_VERSION);
-		hv_host_info_ebx = cpuid_ebx(HVCPUID_VERSION);
-		hv_host_info_ecx = cpuid_ecx(HVCPUID_VERSION);
-		hv_host_info_edx = cpuid_edx(HVCPUID_VERSION);
+	if (cpuid_eax(HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS) >=
+	    HYPERV_CPUID_VERSION) {
+		hv_host_info_eax = cpuid_eax(HYPERV_CPUID_VERSION);
+		hv_host_info_ebx = cpuid_ebx(HYPERV_CPUID_VERSION);
+		hv_host_info_ecx = cpuid_ecx(HYPERV_CPUID_VERSION);
+		hv_host_info_edx = cpuid_edx(HYPERV_CPUID_VERSION);
 
 		pr_info("Hyper-V Host Build:%d-%d.%d-%d-%d.%d\n",
 			hv_host_info_eax, hv_host_info_ebx >> 16,
@@ -243,6 +244,11 @@ static void __init ms_hyperv_init_platform(void)
 		x86_platform.calibrate_cpu = hv_get_tsc_khz;
 	}
 
+	if (ms_hyperv.hints & HV_X64_ENLIGHTENED_VMCS_RECOMMENDED) {
+		ms_hyperv.nested_features =
+			cpuid_eax(HYPERV_CPUID_NESTED_FEATURES);
+	}
+
 #ifdef CONFIG_X86_LOCAL_APIC
 	if (ms_hyperv.features & HV_X64_ACCESS_FREQUENCY_MSRS &&
 	    ms_hyperv.misc_features & HV_FEATURE_FREQUENCY_MSRS_AVAILABLE) {
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 1f6680427ff0..f631a3f15587 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -38,37 +38,6 @@
 #include <asm/virtext.h>
 #include <asm/intel_pt.h>
 
-/* Alignment required for elf header segment */
-#define ELF_CORE_HEADER_ALIGN   4096
-
-/* This primarily represents number of split ranges due to exclusion */
-#define CRASH_MAX_RANGES	16
-
-struct crash_mem_range {
-	u64 start, end;
-};
-
-struct crash_mem {
-	unsigned int nr_ranges;
-	struct crash_mem_range ranges[CRASH_MAX_RANGES];
-};
-
-/* Misc data about ram ranges needed to prepare elf headers */
-struct crash_elf_data {
-	struct kimage *image;
-	/*
-	 * Total number of ram ranges we have after various adjustments for
-	 * crash reserved region, etc.
-	 */
-	unsigned int max_nr_ranges;
-
-	/* Pointer to elf header */
-	void *ehdr;
-	/* Pointer to next phdr */
-	void *bufp;
-	struct crash_mem mem;
-};
-
 /* Used while preparing memory map entries for second kernel */
 struct crash_memmap_data {
 	struct boot_params *params;
@@ -218,124 +187,49 @@ static int get_nr_ram_ranges_callback(struct resource *res, void *arg)
 	return 0;
 }
 
-
 /* Gather all the required information to prepare elf headers for ram regions */
-static void fill_up_crash_elf_data(struct crash_elf_data *ced,
-				   struct kimage *image)
+static struct crash_mem *fill_up_crash_elf_data(void)
 {
 	unsigned int nr_ranges = 0;
-
-	ced->image = image;
+	struct crash_mem *cmem;
 
 	walk_system_ram_res(0, -1, &nr_ranges,
 				get_nr_ram_ranges_callback);
+	if (!nr_ranges)
+		return NULL;
 
-	ced->max_nr_ranges = nr_ranges;
-
-	/* Exclusion of crash region could split memory ranges */
-	ced->max_nr_ranges++;
-
-	/* If crashk_low_res is not 0, another range split possible */
-	if (crashk_low_res.end)
-		ced->max_nr_ranges++;
-}
-
-static int exclude_mem_range(struct crash_mem *mem,
-		unsigned long long mstart, unsigned long long mend)
-{
-	int i, j;
-	unsigned long long start, end;
-	struct crash_mem_range temp_range = {0, 0};
-
-	for (i = 0; i < mem->nr_ranges; i++) {
-		start = mem->ranges[i].start;
-		end = mem->ranges[i].end;
-
-		if (mstart > end || mend < start)
-			continue;
-
-		/* Truncate any area outside of range */
-		if (mstart < start)
-			mstart = start;
-		if (mend > end)
-			mend = end;
-
-		/* Found completely overlapping range */
-		if (mstart == start && mend == end) {
-			mem->ranges[i].start = 0;
-			mem->ranges[i].end = 0;
-			if (i < mem->nr_ranges - 1) {
-				/* Shift rest of the ranges to left */
-				for (j = i; j < mem->nr_ranges - 1; j++) {
-					mem->ranges[j].start =
-						mem->ranges[j+1].start;
-					mem->ranges[j].end =
-							mem->ranges[j+1].end;
-				}
-			}
-			mem->nr_ranges--;
-			return 0;
-		}
-
-		if (mstart > start && mend < end) {
-			/* Split original range */
-			mem->ranges[i].end = mstart - 1;
-			temp_range.start = mend + 1;
-			temp_range.end = end;
-		} else if (mstart != start)
-			mem->ranges[i].end = mstart - 1;
-		else
-			mem->ranges[i].start = mend + 1;
-		break;
-	}
+	/*
+	 * Exclusion of crash region and/or crashk_low_res may cause
+	 * another range split. So add extra two slots here.
+	 */
+	nr_ranges += 2;
+	cmem = vzalloc(sizeof(struct crash_mem) +
+			sizeof(struct crash_mem_range) * nr_ranges);
+	if (!cmem)
+		return NULL;
 
-	/* If a split happend, add the split to array */
-	if (!temp_range.end)
-		return 0;
+	cmem->max_nr_ranges = nr_ranges;
+	cmem->nr_ranges = 0;
 
-	/* Split happened */
-	if (i == CRASH_MAX_RANGES - 1) {
-		pr_err("Too many crash ranges after split\n");
-		return -ENOMEM;
-	}
-
-	/* Location where new range should go */
-	j = i + 1;
-	if (j < mem->nr_ranges) {
-		/* Move over all ranges one slot towards the end */
-		for (i = mem->nr_ranges - 1; i >= j; i--)
-			mem->ranges[i + 1] = mem->ranges[i];
-	}
-
-	mem->ranges[j].start = temp_range.start;
-	mem->ranges[j].end = temp_range.end;
-	mem->nr_ranges++;
-	return 0;
+	return cmem;
 }
 
 /*
  * Look for any unwanted ranges between mstart, mend and remove them. This
- * might lead to split and split ranges are put in ced->mem.ranges[] array
+ * might lead to split and split ranges are put in cmem->ranges[] array
  */
-static int elf_header_exclude_ranges(struct crash_elf_data *ced,
-		unsigned long long mstart, unsigned long long mend)
+static int elf_header_exclude_ranges(struct crash_mem *cmem)
 {
-	struct crash_mem *cmem = &ced->mem;
 	int ret = 0;
 
-	memset(cmem->ranges, 0, sizeof(cmem->ranges));
-
-	cmem->ranges[0].start = mstart;
-	cmem->ranges[0].end = mend;
-	cmem->nr_ranges = 1;
-
 	/* Exclude crashkernel region */
-	ret = exclude_mem_range(cmem, crashk_res.start, crashk_res.end);
+	ret = crash_exclude_mem_range(cmem, crashk_res.start, crashk_res.end);
 	if (ret)
 		return ret;
 
 	if (crashk_low_res.end) {
-		ret = exclude_mem_range(cmem, crashk_low_res.start, crashk_low_res.end);
+		ret = crash_exclude_mem_range(cmem, crashk_low_res.start,
+							crashk_low_res.end);
 		if (ret)
 			return ret;
 	}
@@ -345,144 +239,12 @@ static int elf_header_exclude_ranges(struct crash_elf_data *ced,
 
 static int prepare_elf64_ram_headers_callback(struct resource *res, void *arg)
 {
-	struct crash_elf_data *ced = arg;
-	Elf64_Ehdr *ehdr;
-	Elf64_Phdr *phdr;
-	unsigned long mstart, mend;
-	struct kimage *image = ced->image;
-	struct crash_mem *cmem;
-	int ret, i;
-
-	ehdr = ced->ehdr;
-
-	/* Exclude unwanted mem ranges */
-	ret = elf_header_exclude_ranges(ced, res->start, res->end);
-	if (ret)
-		return ret;
-
-	/* Go through all the ranges in ced->mem.ranges[] and prepare phdr */
-	cmem = &ced->mem;
-
-	for (i = 0; i < cmem->nr_ranges; i++) {
-		mstart = cmem->ranges[i].start;
-		mend = cmem->ranges[i].end;
-
-		phdr = ced->bufp;
-		ced->bufp += sizeof(Elf64_Phdr);
-
-		phdr->p_type = PT_LOAD;
-		phdr->p_flags = PF_R|PF_W|PF_X;
-		phdr->p_offset  = mstart;
-
-		/*
-		 * If a range matches backup region, adjust offset to backup
-		 * segment.
-		 */
-		if (mstart == image->arch.backup_src_start &&
-		    (mend - mstart + 1) == image->arch.backup_src_sz)
-			phdr->p_offset = image->arch.backup_load_addr;
-
-		phdr->p_paddr = mstart;
-		phdr->p_vaddr = (unsigned long long) __va(mstart);
-		phdr->p_filesz = phdr->p_memsz = mend - mstart + 1;
-		phdr->p_align = 0;
-		ehdr->e_phnum++;
-		pr_debug("Crash PT_LOAD elf header. phdr=%p vaddr=0x%llx, paddr=0x%llx, sz=0x%llx e_phnum=%d p_offset=0x%llx\n",
-			phdr, phdr->p_vaddr, phdr->p_paddr, phdr->p_filesz,
-			ehdr->e_phnum, phdr->p_offset);
-	}
-
-	return ret;
-}
-
-static int prepare_elf64_headers(struct crash_elf_data *ced,
-		void **addr, unsigned long *sz)
-{
-	Elf64_Ehdr *ehdr;
-	Elf64_Phdr *phdr;
-	unsigned long nr_cpus = num_possible_cpus(), nr_phdr, elf_sz;
-	unsigned char *buf, *bufp;
-	unsigned int cpu;
-	unsigned long long notes_addr;
-	int ret;
+	struct crash_mem *cmem = arg;
 
-	/* extra phdr for vmcoreinfo elf note */
-	nr_phdr = nr_cpus + 1;
-	nr_phdr += ced->max_nr_ranges;
-
-	/*
-	 * kexec-tools creates an extra PT_LOAD phdr for kernel text mapping
-	 * area on x86_64 (ffffffff80000000 - ffffffffa0000000).
-	 * I think this is required by tools like gdb. So same physical
-	 * memory will be mapped in two elf headers. One will contain kernel
-	 * text virtual addresses and other will have __va(physical) addresses.
-	 */
+	cmem->ranges[cmem->nr_ranges].start = res->start;
+	cmem->ranges[cmem->nr_ranges].end = res->end;
+	cmem->nr_ranges++;
 
-	nr_phdr++;
-	elf_sz = sizeof(Elf64_Ehdr) + nr_phdr * sizeof(Elf64_Phdr);
-	elf_sz = ALIGN(elf_sz, ELF_CORE_HEADER_ALIGN);
-
-	buf = vzalloc(elf_sz);
-	if (!buf)
-		return -ENOMEM;
-
-	bufp = buf;
-	ehdr = (Elf64_Ehdr *)bufp;
-	bufp += sizeof(Elf64_Ehdr);
-	memcpy(ehdr->e_ident, ELFMAG, SELFMAG);
-	ehdr->e_ident[EI_CLASS] = ELFCLASS64;
-	ehdr->e_ident[EI_DATA] = ELFDATA2LSB;
-	ehdr->e_ident[EI_VERSION] = EV_CURRENT;
-	ehdr->e_ident[EI_OSABI] = ELF_OSABI;
-	memset(ehdr->e_ident + EI_PAD, 0, EI_NIDENT - EI_PAD);
-	ehdr->e_type = ET_CORE;
-	ehdr->e_machine = ELF_ARCH;
-	ehdr->e_version = EV_CURRENT;
-	ehdr->e_phoff = sizeof(Elf64_Ehdr);
-	ehdr->e_ehsize = sizeof(Elf64_Ehdr);
-	ehdr->e_phentsize = sizeof(Elf64_Phdr);
-
-	/* Prepare one phdr of type PT_NOTE for each present cpu */
-	for_each_present_cpu(cpu) {
-		phdr = (Elf64_Phdr *)bufp;
-		bufp += sizeof(Elf64_Phdr);
-		phdr->p_type = PT_NOTE;
-		notes_addr = per_cpu_ptr_to_phys(per_cpu_ptr(crash_notes, cpu));
-		phdr->p_offset = phdr->p_paddr = notes_addr;
-		phdr->p_filesz = phdr->p_memsz = sizeof(note_buf_t);
-		(ehdr->e_phnum)++;
-	}
-
-	/* Prepare one PT_NOTE header for vmcoreinfo */
-	phdr = (Elf64_Phdr *)bufp;
-	bufp += sizeof(Elf64_Phdr);
-	phdr->p_type = PT_NOTE;
-	phdr->p_offset = phdr->p_paddr = paddr_vmcoreinfo_note();
-	phdr->p_filesz = phdr->p_memsz = VMCOREINFO_NOTE_SIZE;
-	(ehdr->e_phnum)++;
-
-#ifdef CONFIG_X86_64
-	/* Prepare PT_LOAD type program header for kernel text region */
-	phdr = (Elf64_Phdr *)bufp;
-	bufp += sizeof(Elf64_Phdr);
-	phdr->p_type = PT_LOAD;
-	phdr->p_flags = PF_R|PF_W|PF_X;
-	phdr->p_vaddr = (Elf64_Addr)_text;
-	phdr->p_filesz = phdr->p_memsz = _end - _text;
-	phdr->p_offset = phdr->p_paddr = __pa_symbol(_text);
-	(ehdr->e_phnum)++;
-#endif
-
-	/* Prepare PT_LOAD headers for system ram chunks. */
-	ced->ehdr = ehdr;
-	ced->bufp = bufp;
-	ret = walk_system_ram_res(0, -1, ced,
-			prepare_elf64_ram_headers_callback);
-	if (ret < 0)
-		return ret;
-
-	*addr = buf;
-	*sz = elf_sz;
 	return 0;
 }
 
@@ -490,18 +252,46 @@ static int prepare_elf64_headers(struct crash_elf_data *ced,
 static int prepare_elf_headers(struct kimage *image, void **addr,
 					unsigned long *sz)
 {
-	struct crash_elf_data *ced;
-	int ret;
+	struct crash_mem *cmem;
+	Elf64_Ehdr *ehdr;
+	Elf64_Phdr *phdr;
+	int ret, i;
 
-	ced = kzalloc(sizeof(*ced), GFP_KERNEL);
-	if (!ced)
+	cmem = fill_up_crash_elf_data();
+	if (!cmem)
 		return -ENOMEM;
 
-	fill_up_crash_elf_data(ced, image);
+	ret = walk_system_ram_res(0, -1, cmem,
+				prepare_elf64_ram_headers_callback);
+	if (ret)
+		goto out;
+
+	/* Exclude unwanted mem ranges */
+	ret = elf_header_exclude_ranges(cmem);
+	if (ret)
+		goto out;
 
 	/* By default prepare 64bit headers */
-	ret =  prepare_elf64_headers(ced, addr, sz);
-	kfree(ced);
+	ret =  crash_prepare_elf64_headers(cmem,
+				IS_ENABLED(CONFIG_X86_64), addr, sz);
+	if (ret)
+		goto out;
+
+	/*
+	 * If a range matches backup region, adjust offset to backup
+	 * segment.
+	 */
+	ehdr = (Elf64_Ehdr *)*addr;
+	phdr = (Elf64_Phdr *)(ehdr + 1);
+	for (i = 0; i < ehdr->e_phnum; phdr++, i++)
+		if (phdr->p_type == PT_LOAD &&
+				phdr->p_paddr == image->arch.backup_src_start &&
+				phdr->p_memsz == image->arch.backup_src_sz) {
+			phdr->p_offset = image->arch.backup_load_addr;
+			break;
+		}
+out:
+	vfree(cmem);
 	return ret;
 }
 
@@ -547,14 +337,14 @@ static int memmap_exclude_ranges(struct kimage *image, struct crash_mem *cmem,
 	/* Exclude Backup region */
 	start = image->arch.backup_load_addr;
 	end = start + image->arch.backup_src_sz - 1;
-	ret = exclude_mem_range(cmem, start, end);
+	ret = crash_exclude_mem_range(cmem, start, end);
 	if (ret)
 		return ret;
 
 	/* Exclude elf header region */
 	start = image->arch.elf_load_addr;
 	end = start + image->arch.elf_headers_sz - 1;
-	return exclude_mem_range(cmem, start, end);
+	return crash_exclude_mem_range(cmem, start, end);
 }
 
 /* Prepare memory map for crash dump kernel */
diff --git a/arch/x86/kernel/espfix_64.c b/arch/x86/kernel/espfix_64.c
index e5ec3cafa72e..aebd0d5bc086 100644
--- a/arch/x86/kernel/espfix_64.c
+++ b/arch/x86/kernel/espfix_64.c
@@ -195,6 +195,10 @@ void init_espfix_ap(int cpu)
 
 	pte_p = pte_offset_kernel(&pmd, addr);
 	stack_page = page_address(alloc_pages_node(node, GFP_KERNEL, 0));
+	/*
+	 * __PAGE_KERNEL_* includes _PAGE_GLOBAL, which we want since
+	 * this is mapped to userspace.
+	 */
 	pte = __pte(__pa(stack_page) | ((__PAGE_KERNEL_RO | _PAGE_ENC) & ptemask));
 	for (n = 0; n < ESPFIX_PTE_CLONES; n++)
 		set_pte(&pte_p[n*PTE_STRIDE], pte);
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 0c855deee165..0c408f8c4ed4 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -195,6 +195,8 @@ unsigned long __head __startup_64(unsigned long physaddr,
 	pud[i + 1] = (pudval_t)pmd + pgtable_flags;
 
 	pmd_entry = __PAGE_KERNEL_LARGE_EXEC & ~_PAGE_GLOBAL;
+	/* Filter out unsupported __PAGE_KERNEL_* bits: */
+	pmd_entry &= __supported_pte_mask;
 	pmd_entry += sme_get_me_mask();
 	pmd_entry +=  physaddr;
 
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 48385c1074a5..8344dd2f310a 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -399,8 +399,13 @@ NEXT_PAGE(level3_ident_pgt)
 	.quad	level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
 	.fill	511, 8, 0
 NEXT_PAGE(level2_ident_pgt)
-	/* Since I easily can, map the first 1G.
+	/*
+	 * Since I easily can, map the first 1G.
 	 * Don't set NX because code runs from these pages.
+	 *
+	 * Note: This sets _PAGE_GLOBAL despite whether
+	 * the CPU supports it or it is enabled.  But,
+	 * the CPU should ignore the bit.
 	 */
 	PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD)
 #else
@@ -431,6 +436,10 @@ NEXT_PAGE(level2_kernel_pgt)
 	 * (NOTE: at +512MB starts the module area, see MODULES_VADDR.
 	 *  If you want to increase this then increase MODULES_VADDR
 	 *  too.)
+	 *
+	 *  This table is eventually used by the kernel during normal
+	 *  runtime.  Care must be taken to clear out undesired bits
+	 *  later, like _PAGE_RW or _PAGE_GLOBAL in some cases.
 	 */
 	PMDS(0, __PAGE_KERNEL_LARGE_EXEC,
 		KERNEL_IMAGE_SIZE/PMD_SIZE)
diff --git a/arch/x86/kernel/kexec-bzimage64.c b/arch/x86/kernel/kexec-bzimage64.c
index fb095ba0c02f..3182908b7e6c 100644
--- a/arch/x86/kernel/kexec-bzimage64.c
+++ b/arch/x86/kernel/kexec-bzimage64.c
@@ -334,7 +334,6 @@ static void *bzImage64_load(struct kimage *image, char *kernel,
 	unsigned long setup_header_size, params_cmdline_sz;
 	struct boot_params *params;
 	unsigned long bootparam_load_addr, kernel_load_addr, initrd_load_addr;
-	unsigned long purgatory_load_addr;
 	struct bzimage64_data *ldata;
 	struct kexec_entry64_regs regs64;
 	void *stack;
@@ -342,6 +341,8 @@ static void *bzImage64_load(struct kimage *image, char *kernel,
 	unsigned int efi_map_offset, efi_map_sz, efi_setup_data_offset;
 	struct kexec_buf kbuf = { .image = image, .buf_max = ULONG_MAX,
 				  .top_down = true };
+	struct kexec_buf pbuf = { .image = image, .buf_min = MIN_PURGATORY_ADDR,
+				  .buf_max = ULONG_MAX, .top_down = true };
 
 	header = (struct setup_header *)(kernel + setup_hdr_offset);
 	setup_sects = header->setup_sects;
@@ -379,14 +380,13 @@ static void *bzImage64_load(struct kimage *image, char *kernel,
 	 * Load purgatory. For 64bit entry point, purgatory  code can be
 	 * anywhere.
 	 */
-	ret = kexec_load_purgatory(image, MIN_PURGATORY_ADDR, ULONG_MAX, 1,
-				   &purgatory_load_addr);
+	ret = kexec_load_purgatory(image, &pbuf);
 	if (ret) {
 		pr_err("Loading purgatory failed\n");
 		return ERR_PTR(ret);
 	}
 
-	pr_debug("Loaded purgatory at 0x%lx\n", purgatory_load_addr);
+	pr_debug("Loaded purgatory at 0x%lx\n", pbuf.mem);
 
 
 	/*
@@ -538,7 +538,7 @@ static int bzImage64_verify_sig(const char *kernel, unsigned long kernel_len)
 }
 #endif
 
-struct kexec_file_ops kexec_bzImage64_ops = {
+const struct kexec_file_ops kexec_bzImage64_ops = {
 	.probe = bzImage64_probe,
 	.load = bzImage64_load,
 	.cleanup = bzImage64_cleanup,
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index fae86e36e399..7867417cfaff 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -454,6 +454,13 @@ static void __init sev_map_percpu_data(void)
 }
 
 #ifdef CONFIG_SMP
+static void __init kvm_smp_prepare_cpus(unsigned int max_cpus)
+{
+	native_smp_prepare_cpus(max_cpus);
+	if (kvm_para_has_hint(KVM_HINTS_DEDICATED))
+		static_branch_disable(&virt_spin_lock_key);
+}
+
 static void __init kvm_smp_prepare_boot_cpu(void)
 {
 	/*
@@ -546,6 +553,7 @@ static void __init kvm_guest_init(void)
 	}
 
 	if (kvm_para_has_feature(KVM_FEATURE_PV_TLB_FLUSH) &&
+	    !kvm_para_has_hint(KVM_HINTS_DEDICATED) &&
 	    kvm_para_has_feature(KVM_FEATURE_STEAL_TIME))
 		pv_mmu_ops.flush_tlb_others = kvm_flush_tlb_others;
 
@@ -556,6 +564,7 @@ static void __init kvm_guest_init(void)
 		kvm_setup_vsyscall_timeinfo();
 
 #ifdef CONFIG_SMP
+	smp_ops.smp_prepare_cpus = kvm_smp_prepare_cpus;
 	smp_ops.smp_prepare_boot_cpu = kvm_smp_prepare_boot_cpu;
 	if (cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN, "x86/kvm:online",
 				      kvm_cpu_online, kvm_cpu_down_prepare) < 0)
@@ -605,6 +614,11 @@ unsigned int kvm_arch_para_features(void)
 	return cpuid_eax(kvm_cpuid_base() | KVM_CPUID_FEATURES);
 }
 
+unsigned int kvm_arch_para_hints(void)
+{
+	return cpuid_edx(kvm_cpuid_base() | KVM_CPUID_FEATURES);
+}
+
 static uint32_t __init kvm_detect(void)
 {
 	return kvm_cpuid_base();
@@ -635,6 +649,7 @@ static __init int kvm_setup_pv_tlb_flush(void)
 	int cpu;
 
 	if (kvm_para_has_feature(KVM_FEATURE_PV_TLB_FLUSH) &&
+	    !kvm_para_has_hint(KVM_HINTS_DEDICATED) &&
 	    kvm_para_has_feature(KVM_FEATURE_STEAL_TIME)) {
 		for_each_possible_cpu(cpu) {
 			zalloc_cpumask_var_node(per_cpu_ptr(&__pv_tlb_mask, cpu),
@@ -730,6 +745,9 @@ void __init kvm_spinlock_init(void)
 	if (!kvm_para_has_feature(KVM_FEATURE_PV_UNHALT))
 		return;
 
+	if (kvm_para_has_hint(KVM_HINTS_DEDICATED))
+		return;
+
 	__pv_init_lock_hash();
 	pv_lock_ops.queued_spin_lock_slowpath = __pv_queued_spin_lock_slowpath;
 	pv_lock_ops.queued_spin_unlock = PV_CALLEE_SAVE(__pv_queued_spin_unlock);
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index 26d713ecad34..c9b14020f4dd 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -145,6 +145,7 @@ map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot)
 		unsigned long offset = i << PAGE_SHIFT;
 		const void *src = (char *)ldt->entries + offset;
 		unsigned long pfn;
+		pgprot_t pte_prot;
 		pte_t pte, *ptep;
 
 		va = (unsigned long)ldt_slot_va(slot) + offset;
@@ -163,7 +164,10 @@ map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot)
 		 * target via some kernel interface which misses a
 		 * permission check.
 		 */
-		pte = pfn_pte(pfn, __pgprot(__PAGE_KERNEL_RO & ~_PAGE_GLOBAL));
+		pte_prot = __pgprot(__PAGE_KERNEL_RO & ~_PAGE_GLOBAL);
+		/* Filter out unsuppored __PAGE_KERNEL* bits: */
+		pgprot_val(pte_prot) &= __supported_pte_mask;
+		pte = pfn_pte(pfn, pte_prot);
 		set_pte_at(mm, va, ptep, pte);
 		pte_unmap_unlock(ptep, ptl);
 	}
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index 93bd4fb603d1..a5e55d832d0a 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -30,8 +30,9 @@
 #include <asm/set_memory.h>
 
 #ifdef CONFIG_KEXEC_FILE
-static struct kexec_file_ops *kexec_file_loaders[] = {
+const struct kexec_file_ops * const kexec_file_loaders[] = {
 		&kexec_bzImage64_ops,
+		NULL
 };
 #endif
 
@@ -364,27 +365,6 @@ void arch_crash_save_vmcoreinfo(void)
 /* arch-dependent functionality related to kexec file-based syscall */
 
 #ifdef CONFIG_KEXEC_FILE
-int arch_kexec_kernel_image_probe(struct kimage *image, void *buf,
-				  unsigned long buf_len)
-{
-	int i, ret = -ENOEXEC;
-	struct kexec_file_ops *fops;
-
-	for (i = 0; i < ARRAY_SIZE(kexec_file_loaders); i++) {
-		fops = kexec_file_loaders[i];
-		if (!fops || !fops->probe)
-			continue;
-
-		ret = fops->probe(buf, buf_len);
-		if (!ret) {
-			image->fops = fops;
-			return ret;
-		}
-	}
-
-	return ret;
-}
-
 void *arch_kexec_kernel_image_load(struct kimage *image)
 {
 	vfree(image->arch.elf_headers);
@@ -399,88 +379,53 @@ void *arch_kexec_kernel_image_load(struct kimage *image)
 				 image->cmdline_buf_len);
 }
 
-int arch_kimage_file_post_load_cleanup(struct kimage *image)
-{
-	if (!image->fops || !image->fops->cleanup)
-		return 0;
-
-	return image->fops->cleanup(image->image_loader_data);
-}
-
-#ifdef CONFIG_KEXEC_VERIFY_SIG
-int arch_kexec_kernel_verify_sig(struct kimage *image, void *kernel,
-				 unsigned long kernel_len)
-{
-	if (!image->fops || !image->fops->verify_sig) {
-		pr_debug("kernel loader does not support signature verification.");
-		return -EKEYREJECTED;
-	}
-
-	return image->fops->verify_sig(kernel, kernel_len);
-}
-#endif
-
 /*
  * Apply purgatory relocations.
  *
- * ehdr: Pointer to elf headers
- * sechdrs: Pointer to section headers.
- * relsec: section index of SHT_RELA section.
+ * @pi:		Purgatory to be relocated.
+ * @section:	Section relocations applying to.
+ * @relsec:	Section containing RELAs.
+ * @symtabsec:	Corresponding symtab.
  *
  * TODO: Some of the code belongs to generic code. Move that in kexec.c.
  */
-int arch_kexec_apply_relocations_add(const Elf64_Ehdr *ehdr,
-				     Elf64_Shdr *sechdrs, unsigned int relsec)
+int arch_kexec_apply_relocations_add(struct purgatory_info *pi,
+				     Elf_Shdr *section, const Elf_Shdr *relsec,
+				     const Elf_Shdr *symtabsec)
 {
 	unsigned int i;
 	Elf64_Rela *rel;
 	Elf64_Sym *sym;
 	void *location;
-	Elf64_Shdr *section, *symtabsec;
 	unsigned long address, sec_base, value;
 	const char *strtab, *name, *shstrtab;
+	const Elf_Shdr *sechdrs;
 
-	/*
-	 * ->sh_offset has been modified to keep the pointer to section
-	 * contents in memory
-	 */
-	rel = (void *)sechdrs[relsec].sh_offset;
-
-	/* Section to which relocations apply */
-	section = &sechdrs[sechdrs[relsec].sh_info];
-
-	pr_debug("Applying relocate section %u to %u\n", relsec,
-		 sechdrs[relsec].sh_info);
-
-	/* Associated symbol table */
-	symtabsec = &sechdrs[sechdrs[relsec].sh_link];
-
-	/* String table */
-	if (symtabsec->sh_link >= ehdr->e_shnum) {
-		/* Invalid strtab section number */
-		pr_err("Invalid string table section index %d\n",
-		       symtabsec->sh_link);
-		return -ENOEXEC;
-	}
+	/* String & section header string table */
+	sechdrs = (void *)pi->ehdr + pi->ehdr->e_shoff;
+	strtab = (char *)pi->ehdr + sechdrs[symtabsec->sh_link].sh_offset;
+	shstrtab = (char *)pi->ehdr + sechdrs[pi->ehdr->e_shstrndx].sh_offset;
 
-	strtab = (char *)sechdrs[symtabsec->sh_link].sh_offset;
+	rel = (void *)pi->ehdr + relsec->sh_offset;
 
-	/* section header string table */
-	shstrtab = (char *)sechdrs[ehdr->e_shstrndx].sh_offset;
+	pr_debug("Applying relocate section %s to %u\n",
+		 shstrtab + relsec->sh_name, relsec->sh_info);
 
-	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
+	for (i = 0; i < relsec->sh_size / sizeof(*rel); i++) {
 
 		/*
 		 * rel[i].r_offset contains byte offset from beginning
 		 * of section to the storage unit affected.
 		 *
-		 * This is location to update (->sh_offset). This is temporary
-		 * buffer where section is currently loaded. This will finally
-		 * be loaded to a different address later, pointed to by
+		 * This is location to update. This is temporary buffer
+		 * where section is currently loaded. This will finally be
+		 * loaded to a different address later, pointed to by
 		 * ->sh_addr. kexec takes care of moving it
 		 *  (kexec_load_segment()).
 		 */
-		location = (void *)(section->sh_offset + rel[i].r_offset);
+		location = pi->purgatory_buf;
+		location += section->sh_offset;
+		location += rel[i].r_offset;
 
 		/* Final address of the location */
 		address = section->sh_addr + rel[i].r_offset;
@@ -491,8 +436,8 @@ int arch_kexec_apply_relocations_add(const Elf64_Ehdr *ehdr,
 		 * to apply. ELF64_R_SYM() and ELF64_R_TYPE() macros get
 		 * these respectively.
 		 */
-		sym = (Elf64_Sym *)symtabsec->sh_offset +
-				ELF64_R_SYM(rel[i].r_info);
+		sym = (void *)pi->ehdr + symtabsec->sh_offset;
+		sym += ELF64_R_SYM(rel[i].r_info);
 
 		if (sym->st_name)
 			name = strtab + sym->st_name;
@@ -515,12 +460,12 @@ int arch_kexec_apply_relocations_add(const Elf64_Ehdr *ehdr,
 
 		if (sym->st_shndx == SHN_ABS)
 			sec_base = 0;
-		else if (sym->st_shndx >= ehdr->e_shnum) {
+		else if (sym->st_shndx >= pi->ehdr->e_shnum) {
 			pr_err("Invalid section %d for symbol %s\n",
 			       sym->st_shndx, name);
 			return -ENOEXEC;
 		} else
-			sec_base = sechdrs[sym->st_shndx].sh_addr;
+			sec_base = pi->sechdrs[sym->st_shndx].sh_addr;
 
 		value = sym->st_value;
 		value += sec_base;
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 14437116ffea..77625b60a510 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -6,7 +6,6 @@
 #include <linux/bootmem.h>
 #include <linux/gfp.h>
 #include <linux/pci.h>
-#include <linux/kmemleak.h>
 
 #include <asm/proto.h>
 #include <asm/dma.h>
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 9eb448c7859d..4b100fe0f508 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -205,6 +205,20 @@ static __always_inline void save_fsgs(struct task_struct *task)
 	save_base_legacy(task, task->thread.gsindex, GS);
 }
 
+#if IS_ENABLED(CONFIG_KVM)
+/*
+ * While a process is running,current->thread.fsbase and current->thread.gsbase
+ * may not match the corresponding CPU registers (see save_base_legacy()). KVM
+ * wants an efficient way to save and restore FSBASE and GSBASE.
+ * When FSGSBASE extensions are enabled, this will have to use RD{FS,GS}BASE.
+ */
+void save_fsgs_for_kvm(void)
+{
+	save_fsgs(current);
+}
+EXPORT_SYMBOL_GPL(save_fsgs_for_kvm);
+#endif
+
 static __always_inline void loadseg(enum which_selector which,
 				    unsigned short sel)
 {
diff --git a/arch/x86/kernel/signal_compat.c b/arch/x86/kernel/signal_compat.c
index df92605d8724..14c057f29979 100644
--- a/arch/x86/kernel/signal_compat.c
+++ b/arch/x86/kernel/signal_compat.c
@@ -26,7 +26,7 @@ static inline void signal_compat_build_tests(void)
 	 * new fields are handled in copy_siginfo_to_user32()!
 	 */
 	BUILD_BUG_ON(NSIGILL  != 11);
-	BUILD_BUG_ON(NSIGFPE  != 14);
+	BUILD_BUG_ON(NSIGFPE  != 15);
 	BUILD_BUG_ON(NSIGSEGV != 7);
 	BUILD_BUG_ON(NSIGBUS  != 5);
 	BUILD_BUG_ON(NSIGTRAP != 4);
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index ebda84a91510..3ab867603e81 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -92,6 +92,7 @@ struct x86_init_ops x86_init __initdata = {
 		.guest_late_init	= x86_init_noop,
 		.x2apic_available	= bool_x86_init_noop,
 		.init_mem_mapping	= x86_init_noop,
+		.init_after_bootmem	= x86_init_noop,
 	},
 
 	.acpi = {
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index b671fc2d0422..82055b90a8b3 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -135,6 +135,11 @@ int kvm_update_cpuid(struct kvm_vcpu *vcpu)
 			return -EINVAL;
 	}
 
+	best = kvm_find_cpuid_entry(vcpu, KVM_CPUID_FEATURES, 0);
+	if (kvm_hlt_in_guest(vcpu->kvm) && best &&
+		(best->eax & (1 << KVM_FEATURE_PV_UNHALT)))
+		best->eax &= ~(1 << KVM_FEATURE_PV_UNHALT);
+
 	/* Update physical-address width */
 	vcpu->arch.maxphyaddr = cpuid_query_maxphyaddr(vcpu);
 	kvm_mmu_reset_context(vcpu);
@@ -370,7 +375,7 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
 		F(CR8_LEGACY) | F(ABM) | F(SSE4A) | F(MISALIGNSSE) |
 		F(3DNOWPREFETCH) | F(OSVW) | 0 /* IBS */ | F(XOP) |
 		0 /* SKINIT, WDT, LWP */ | F(FMA4) | F(TBM) |
-		F(TOPOEXT);
+		F(TOPOEXT) | F(PERFCTR_CORE);
 
 	/* cpuid 0x80000008.ebx */
 	const u32 kvm_cpuid_8000_0008_ebx_x86_features =
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index d91eaeb01034..b3705ae52824 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -30,6 +30,7 @@
 #include "x86.h"
 #include "tss.h"
 #include "mmu.h"
+#include "pmu.h"
 
 /*
  * Operand types
@@ -2887,6 +2888,9 @@ static bool emulator_bad_iopl(struct x86_emulate_ctxt *ctxt)
 	return ctxt->ops->cpl(ctxt) > iopl;
 }
 
+#define VMWARE_PORT_VMPORT	(0x5658)
+#define VMWARE_PORT_VMRPC	(0x5659)
+
 static bool emulator_io_port_access_allowed(struct x86_emulate_ctxt *ctxt,
 					    u16 port, u16 len)
 {
@@ -2898,6 +2902,14 @@ static bool emulator_io_port_access_allowed(struct x86_emulate_ctxt *ctxt,
 	unsigned mask = (1 << len) - 1;
 	unsigned long base;
 
+	/*
+	 * VMware allows access to these ports even if denied
+	 * by TSS I/O permission bitmap. Mimic behavior.
+	 */
+	if (enable_vmware_backdoor &&
+	    ((port == VMWARE_PORT_VMPORT) || (port == VMWARE_PORT_VMRPC)))
+		return true;
+
 	ops->get_segment(ctxt, &tr, &tr_seg, &base3, VCPU_SREG_TR);
 	if (!tr_seg.p)
 		return false;
@@ -4282,6 +4294,13 @@ static int check_rdpmc(struct x86_emulate_ctxt *ctxt)
 	u64 cr4 = ctxt->ops->get_cr(ctxt, 4);
 	u64 rcx = reg_read(ctxt, VCPU_REGS_RCX);
 
+	/*
+	 * VMware allows access to these Pseduo-PMCs even when read via RDPMC
+	 * in Ring3 when CR4.PCE=0.
+	 */
+	if (enable_vmware_backdoor && is_vmware_backdoor_pmc(rcx))
+		return X86EMUL_CONTINUE;
+
 	if ((!(cr4 & X86_CR4_PCE) && ctxt->ops->cpl(ctxt)) ||
 	    ctxt->ops->check_pmc(ctxt, rcx))
 		return emulate_gp(ctxt, 0);
@@ -4498,6 +4517,10 @@ static const struct gprefix pfx_0f_2b = {
 	ID(0, &instr_dual_0f_2b), ID(0, &instr_dual_0f_2b), N, N,
 };
 
+static const struct gprefix pfx_0f_10_0f_11 = {
+	I(Unaligned, em_mov), I(Unaligned, em_mov), N, N,
+};
+
 static const struct gprefix pfx_0f_28_0f_29 = {
 	I(Aligned, em_mov), I(Aligned, em_mov), N, N,
 };
@@ -4709,7 +4732,9 @@ static const struct opcode twobyte_table[256] = {
 	DI(ImplicitOps | Priv, invd), DI(ImplicitOps | Priv, wbinvd), N, N,
 	N, D(ImplicitOps | ModRM | SrcMem | NoAccess), N, N,
 	/* 0x10 - 0x1F */
-	N, N, N, N, N, N, N, N,
+	GP(ModRM | DstReg | SrcMem | Mov | Sse, &pfx_0f_10_0f_11),
+	GP(ModRM | DstMem | SrcReg | Mov | Sse, &pfx_0f_10_0f_11),
+	N, N, N, N, N, N,
 	D(ImplicitOps | ModRM | SrcMem | NoAccess),
 	N, N, N, N, N, N, D(ImplicitOps | ModRM | SrcMem | NoAccess),
 	/* 0x20 - 0x2F */
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index dc97f2544b6f..98618e397342 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -29,6 +29,7 @@
 #include <linux/kvm_host.h>
 #include <linux/highmem.h>
 #include <linux/sched/cputime.h>
+#include <linux/eventfd.h>
 
 #include <asm/apicdef.h>
 #include <trace/events/kvm.h>
@@ -74,13 +75,38 @@ static bool synic_has_vector_auto_eoi(struct kvm_vcpu_hv_synic *synic,
 	return false;
 }
 
+static void synic_update_vector(struct kvm_vcpu_hv_synic *synic,
+				int vector)
+{
+	if (vector < HV_SYNIC_FIRST_VALID_VECTOR)
+		return;
+
+	if (synic_has_vector_connected(synic, vector))
+		__set_bit(vector, synic->vec_bitmap);
+	else
+		__clear_bit(vector, synic->vec_bitmap);
+
+	if (synic_has_vector_auto_eoi(synic, vector))
+		__set_bit(vector, synic->auto_eoi_bitmap);
+	else
+		__clear_bit(vector, synic->auto_eoi_bitmap);
+}
+
 static int synic_set_sint(struct kvm_vcpu_hv_synic *synic, int sint,
 			  u64 data, bool host)
 {
-	int vector;
+	int vector, old_vector;
+	bool masked;
 
 	vector = data & HV_SYNIC_SINT_VECTOR_MASK;
-	if (vector < 16 && !host)
+	masked = data & HV_SYNIC_SINT_MASKED;
+
+	/*
+	 * Valid vectors are 16-255, however, nested Hyper-V attempts to write
+	 * default '0x10000' value on boot and this should not #GP. We need to
+	 * allow zero-initing the register from host as well.
+	 */
+	if (vector < HV_SYNIC_FIRST_VALID_VECTOR && !host && !masked)
 		return 1;
 	/*
 	 * Guest may configure multiple SINTs to use the same vector, so
@@ -88,18 +114,13 @@ static int synic_set_sint(struct kvm_vcpu_hv_synic *synic, int sint,
 	 * bitmap of vectors with auto-eoi behavior.  The bitmaps are
 	 * updated here, and atomically queried on fast paths.
 	 */
+	old_vector = synic_read_sint(synic, sint) & HV_SYNIC_SINT_VECTOR_MASK;
 
 	atomic64_set(&synic->sint[sint], data);
 
-	if (synic_has_vector_connected(synic, vector))
-		__set_bit(vector, synic->vec_bitmap);
-	else
-		__clear_bit(vector, synic->vec_bitmap);
+	synic_update_vector(synic, old_vector);
 
-	if (synic_has_vector_auto_eoi(synic, vector))
-		__set_bit(vector, synic->auto_eoi_bitmap);
-	else
-		__clear_bit(vector, synic->auto_eoi_bitmap);
+	synic_update_vector(synic, vector);
 
 	/* Load SynIC vectors into EOI exit bitmap */
 	kvm_make_request(KVM_REQ_SCAN_IOAPIC, synic_to_vcpu(synic));
@@ -736,6 +757,9 @@ static bool kvm_hv_msr_partition_wide(u32 msr)
 	case HV_X64_MSR_CRASH_CTL:
 	case HV_X64_MSR_CRASH_P0 ... HV_X64_MSR_CRASH_P4:
 	case HV_X64_MSR_RESET:
+	case HV_X64_MSR_REENLIGHTENMENT_CONTROL:
+	case HV_X64_MSR_TSC_EMULATION_CONTROL:
+	case HV_X64_MSR_TSC_EMULATION_STATUS:
 		r = true;
 		break;
 	}
@@ -981,6 +1005,15 @@ static int kvm_hv_set_msr_pw(struct kvm_vcpu *vcpu, u32 msr, u64 data,
 			kvm_make_request(KVM_REQ_HV_RESET, vcpu);
 		}
 		break;
+	case HV_X64_MSR_REENLIGHTENMENT_CONTROL:
+		hv->hv_reenlightenment_control = data;
+		break;
+	case HV_X64_MSR_TSC_EMULATION_CONTROL:
+		hv->hv_tsc_emulation_control = data;
+		break;
+	case HV_X64_MSR_TSC_EMULATION_STATUS:
+		hv->hv_tsc_emulation_status = data;
+		break;
 	default:
 		vcpu_unimpl(vcpu, "Hyper-V uhandled wrmsr: 0x%x data 0x%llx\n",
 			    msr, data);
@@ -1009,17 +1042,17 @@ static int kvm_hv_set_msr(struct kvm_vcpu *vcpu, u32 msr, u64 data, bool host)
 			return 1;
 		hv->vp_index = (u32)data;
 		break;
-	case HV_X64_MSR_APIC_ASSIST_PAGE: {
+	case HV_X64_MSR_VP_ASSIST_PAGE: {
 		u64 gfn;
 		unsigned long addr;
 
-		if (!(data & HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE)) {
+		if (!(data & HV_X64_MSR_VP_ASSIST_PAGE_ENABLE)) {
 			hv->hv_vapic = data;
 			if (kvm_lapic_enable_pv_eoi(vcpu, 0))
 				return 1;
 			break;
 		}
-		gfn = data >> HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT;
+		gfn = data >> HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT;
 		addr = kvm_vcpu_gfn_to_hva(vcpu, gfn);
 		if (kvm_is_error_hva(addr))
 			return 1;
@@ -1105,6 +1138,15 @@ static int kvm_hv_get_msr_pw(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
 	case HV_X64_MSR_RESET:
 		data = 0;
 		break;
+	case HV_X64_MSR_REENLIGHTENMENT_CONTROL:
+		data = hv->hv_reenlightenment_control;
+		break;
+	case HV_X64_MSR_TSC_EMULATION_CONTROL:
+		data = hv->hv_tsc_emulation_control;
+		break;
+	case HV_X64_MSR_TSC_EMULATION_STATUS:
+		data = hv->hv_tsc_emulation_status;
+		break;
 	default:
 		vcpu_unimpl(vcpu, "Hyper-V unhandled rdmsr: 0x%x\n", msr);
 		return 1;
@@ -1129,7 +1171,7 @@ static int kvm_hv_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
 		return kvm_hv_vapic_msr_read(vcpu, APIC_ICR, pdata);
 	case HV_X64_MSR_TPR:
 		return kvm_hv_vapic_msr_read(vcpu, APIC_TASKPRI, pdata);
-	case HV_X64_MSR_APIC_ASSIST_PAGE:
+	case HV_X64_MSR_VP_ASSIST_PAGE:
 		data = hv->hv_vapic;
 		break;
 	case HV_X64_MSR_VP_RUNTIME:
@@ -1226,10 +1268,47 @@ static int kvm_hv_hypercall_complete_userspace(struct kvm_vcpu *vcpu)
 	return 1;
 }
 
+static u16 kvm_hvcall_signal_event(struct kvm_vcpu *vcpu, bool fast, u64 param)
+{
+	struct eventfd_ctx *eventfd;
+
+	if (unlikely(!fast)) {
+		int ret;
+		gpa_t gpa = param;
+
+		if ((gpa & (__alignof__(param) - 1)) ||
+		    offset_in_page(gpa) + sizeof(param) > PAGE_SIZE)
+			return HV_STATUS_INVALID_ALIGNMENT;
+
+		ret = kvm_vcpu_read_guest(vcpu, gpa, &param, sizeof(param));
+		if (ret < 0)
+			return HV_STATUS_INVALID_ALIGNMENT;
+	}
+
+	/*
+	 * Per spec, bits 32-47 contain the extra "flag number".  However, we
+	 * have no use for it, and in all known usecases it is zero, so just
+	 * report lookup failure if it isn't.
+	 */
+	if (param & 0xffff00000000ULL)
+		return HV_STATUS_INVALID_PORT_ID;
+	/* remaining bits are reserved-zero */
+	if (param & ~KVM_HYPERV_CONN_ID_MASK)
+		return HV_STATUS_INVALID_HYPERCALL_INPUT;
+
+	/* conn_to_evt is protected by vcpu->kvm->srcu */
+	eventfd = idr_find(&vcpu->kvm->arch.hyperv.conn_to_evt, param);
+	if (!eventfd)
+		return HV_STATUS_INVALID_PORT_ID;
+
+	eventfd_signal(eventfd, 1);
+	return HV_STATUS_SUCCESS;
+}
+
 int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
 {
-	u64 param, ingpa, outgpa, ret;
-	uint16_t code, rep_idx, rep_cnt, res = HV_STATUS_SUCCESS, rep_done = 0;
+	u64 param, ingpa, outgpa, ret = HV_STATUS_SUCCESS;
+	uint16_t code, rep_idx, rep_cnt;
 	bool fast, longmode;
 
 	/*
@@ -1268,7 +1347,7 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
 
 	/* Hypercall continuation is not supported yet */
 	if (rep_cnt || rep_idx) {
-		res = HV_STATUS_INVALID_HYPERCALL_CODE;
+		ret = HV_STATUS_INVALID_HYPERCALL_CODE;
 		goto set_result;
 	}
 
@@ -1276,11 +1355,15 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
 	case HVCALL_NOTIFY_LONG_SPIN_WAIT:
 		kvm_vcpu_on_spin(vcpu, true);
 		break;
-	case HVCALL_POST_MESSAGE:
 	case HVCALL_SIGNAL_EVENT:
+		ret = kvm_hvcall_signal_event(vcpu, fast, ingpa);
+		if (ret != HV_STATUS_INVALID_PORT_ID)
+			break;
+		/* maybe userspace knows this conn_id: fall through */
+	case HVCALL_POST_MESSAGE:
 		/* don't bother userspace if it has no way to handle it */
 		if (!vcpu_to_synic(vcpu)->active) {
-			res = HV_STATUS_INVALID_HYPERCALL_CODE;
+			ret = HV_STATUS_INVALID_HYPERCALL_CODE;
 			break;
 		}
 		vcpu->run->exit_reason = KVM_EXIT_HYPERV;
@@ -1292,12 +1375,79 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
 				kvm_hv_hypercall_complete_userspace;
 		return 0;
 	default:
-		res = HV_STATUS_INVALID_HYPERCALL_CODE;
+		ret = HV_STATUS_INVALID_HYPERCALL_CODE;
 		break;
 	}
 
 set_result:
-	ret = res | (((u64)rep_done & 0xfff) << 32);
 	kvm_hv_hypercall_set_result(vcpu, ret);
 	return 1;
 }
+
+void kvm_hv_init_vm(struct kvm *kvm)
+{
+	mutex_init(&kvm->arch.hyperv.hv_lock);
+	idr_init(&kvm->arch.hyperv.conn_to_evt);
+}
+
+void kvm_hv_destroy_vm(struct kvm *kvm)
+{
+	struct eventfd_ctx *eventfd;
+	int i;
+
+	idr_for_each_entry(&kvm->arch.hyperv.conn_to_evt, eventfd, i)
+		eventfd_ctx_put(eventfd);
+	idr_destroy(&kvm->arch.hyperv.conn_to_evt);
+}
+
+static int kvm_hv_eventfd_assign(struct kvm *kvm, u32 conn_id, int fd)
+{
+	struct kvm_hv *hv = &kvm->arch.hyperv;
+	struct eventfd_ctx *eventfd;
+	int ret;
+
+	eventfd = eventfd_ctx_fdget(fd);
+	if (IS_ERR(eventfd))
+		return PTR_ERR(eventfd);
+
+	mutex_lock(&hv->hv_lock);
+	ret = idr_alloc(&hv->conn_to_evt, eventfd, conn_id, conn_id + 1,
+			GFP_KERNEL);
+	mutex_unlock(&hv->hv_lock);
+
+	if (ret >= 0)
+		return 0;
+
+	if (ret == -ENOSPC)
+		ret = -EEXIST;
+	eventfd_ctx_put(eventfd);
+	return ret;
+}
+
+static int kvm_hv_eventfd_deassign(struct kvm *kvm, u32 conn_id)
+{
+	struct kvm_hv *hv = &kvm->arch.hyperv;
+	struct eventfd_ctx *eventfd;
+
+	mutex_lock(&hv->hv_lock);
+	eventfd = idr_remove(&hv->conn_to_evt, conn_id);
+	mutex_unlock(&hv->hv_lock);
+
+	if (!eventfd)
+		return -ENOENT;
+
+	synchronize_srcu(&kvm->srcu);
+	eventfd_ctx_put(eventfd);
+	return 0;
+}
+
+int kvm_vm_ioctl_hv_eventfd(struct kvm *kvm, struct kvm_hyperv_eventfd *args)
+{
+	if ((args->flags & ~KVM_HYPERV_EVENTFD_DEASSIGN) ||
+	    (args->conn_id & ~KVM_HYPERV_CONN_ID_MASK))
+		return -EINVAL;
+
+	if (args->flags == KVM_HYPERV_EVENTFD_DEASSIGN)
+		return kvm_hv_eventfd_deassign(kvm, args->conn_id);
+	return kvm_hv_eventfd_assign(kvm, args->conn_id, args->fd);
+}
diff --git a/arch/x86/kvm/hyperv.h b/arch/x86/kvm/hyperv.h
index e637631a9574..837465d69c6d 100644
--- a/arch/x86/kvm/hyperv.h
+++ b/arch/x86/kvm/hyperv.h
@@ -88,4 +88,8 @@ void kvm_hv_process_stimers(struct kvm_vcpu *vcpu);
 void kvm_hv_setup_tsc_page(struct kvm *kvm,
 			   struct pvclock_vcpu_time_info *hv_clock);
 
+void kvm_hv_init_vm(struct kvm *kvm);
+void kvm_hv_destroy_vm(struct kvm *kvm);
+int kvm_vm_ioctl_hv_eventfd(struct kvm *kvm, struct kvm_hyperv_eventfd *args);
+
 #endif
diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c
index f171051eecf3..faa264822cee 100644
--- a/arch/x86/kvm/irq.c
+++ b/arch/x86/kvm/irq.c
@@ -73,8 +73,19 @@ static int kvm_cpu_has_extint(struct kvm_vcpu *v)
  */
 int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v)
 {
+	/*
+	 * FIXME: interrupt.injected represents an interrupt that it's
+	 * side-effects have already been applied (e.g. bit from IRR
+	 * already moved to ISR). Therefore, it is incorrect to rely
+	 * on interrupt.injected to know if there is a pending
+	 * interrupt in the user-mode LAPIC.
+	 * This leads to nVMX/nSVM not be able to distinguish
+	 * if it should exit from L2 to L1 on EXTERNAL_INTERRUPT on
+	 * pending interrupt or should re-inject an injected
+	 * interrupt.
+	 */
 	if (!lapic_in_kernel(v))
-		return v->arch.interrupt.pending;
+		return v->arch.interrupt.injected;
 
 	if (kvm_cpu_has_extint(v))
 		return 1;
@@ -91,8 +102,19 @@ int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v)
  */
 int kvm_cpu_has_interrupt(struct kvm_vcpu *v)
 {
+	/*
+	 * FIXME: interrupt.injected represents an interrupt that it's
+	 * side-effects have already been applied (e.g. bit from IRR
+	 * already moved to ISR). Therefore, it is incorrect to rely
+	 * on interrupt.injected to know if there is a pending
+	 * interrupt in the user-mode LAPIC.
+	 * This leads to nVMX/nSVM not be able to distinguish
+	 * if it should exit from L2 to L1 on EXTERNAL_INTERRUPT on
+	 * pending interrupt or should re-inject an injected
+	 * interrupt.
+	 */
 	if (!lapic_in_kernel(v))
-		return v->arch.interrupt.pending;
+		return v->arch.interrupt.injected;
 
 	if (kvm_cpu_has_extint(v))
 		return 1;
diff --git a/arch/x86/kvm/kvm_cache_regs.h b/arch/x86/kvm/kvm_cache_regs.h
index f500293dad8d..9619dcc2b325 100644
--- a/arch/x86/kvm/kvm_cache_regs.h
+++ b/arch/x86/kvm/kvm_cache_regs.h
@@ -41,7 +41,7 @@ static inline u64 kvm_pdptr_read(struct kvm_vcpu *vcpu, int index)
 
 	if (!test_bit(VCPU_EXREG_PDPTR,
 		      (unsigned long *)&vcpu->arch.regs_avail))
-		kvm_x86_ops->cache_reg(vcpu, VCPU_EXREG_PDPTR);
+		kvm_x86_ops->cache_reg(vcpu, (enum kvm_reg)VCPU_EXREG_PDPTR);
 
 	return vcpu->arch.walk_mmu->pdptrs[index];
 }
@@ -93,6 +93,11 @@ static inline void enter_guest_mode(struct kvm_vcpu *vcpu)
 static inline void leave_guest_mode(struct kvm_vcpu *vcpu)
 {
 	vcpu->arch.hflags &= ~HF_GUEST_MASK;
+
+	if (vcpu->arch.load_eoi_exitmap_pending) {
+		vcpu->arch.load_eoi_exitmap_pending = false;
+		kvm_make_request(KVM_REQ_LOAD_EOI_EXITMAP, vcpu);
+	}
 }
 
 static inline bool is_guest_mode(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 391dda8d43b7..70dcb5548022 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -321,8 +321,16 @@ void kvm_apic_set_version(struct kvm_vcpu *vcpu)
 	if (!lapic_in_kernel(vcpu))
 		return;
 
+	/*
+	 * KVM emulates 82093AA datasheet (with in-kernel IOAPIC implementation)
+	 * which doesn't have EOI register; Some buggy OSes (e.g. Windows with
+	 * Hyper-V role) disable EOI broadcast in lapic not checking for IOAPIC
+	 * version first and level-triggered interrupts never get EOIed in
+	 * IOAPIC.
+	 */
 	feat = kvm_find_cpuid_entry(apic->vcpu, 0x1, 0);
-	if (feat && (feat->ecx & (1 << (X86_FEATURE_X2APIC & 31))))
+	if (feat && (feat->ecx & (1 << (X86_FEATURE_X2APIC & 31))) &&
+	    !ioapic_in_kernel(vcpu->kvm))
 		v |= APIC_LVR_DIRECTED_EOI;
 	kvm_lapic_set_reg(apic, APIC_LVR, v);
 }
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index 56c36014f7b7..edce055e9fd7 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -109,7 +109,7 @@ int kvm_hv_vapic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
 
 static inline bool kvm_hv_vapic_assist_page_enabled(struct kvm_vcpu *vcpu)
 {
-	return vcpu->arch.hyperv.hv_vapic & HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE;
+	return vcpu->arch.hyperv.hv_vapic & HV_X64_MSR_VP_ASSIST_PAGE_ENABLE;
 }
 
 int kvm_lapic_enable_pv_eoi(struct kvm_vcpu *vcpu, u64 data);
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 763bb3bade63..8494dbae41b9 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -3031,7 +3031,7 @@ static int kvm_handle_bad_page(struct kvm_vcpu *vcpu, gfn_t gfn, kvm_pfn_t pfn)
 		return RET_PF_RETRY;
 	}
 
-	return RET_PF_EMULATE;
+	return -EFAULT;
 }
 
 static void transparent_hugepage_adjust(struct kvm_vcpu *vcpu,
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 5abae72266b7..6288e9d7068e 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -452,14 +452,21 @@ error:
 	 * done by is_rsvd_bits_set() above.
 	 *
 	 * We set up the value of exit_qualification to inject:
-	 * [2:0] - Derive from [2:0] of real exit_qualification at EPT violation
+	 * [2:0] - Derive from the access bits. The exit_qualification might be
+	 *         out of date if it is serving an EPT misconfiguration.
 	 * [5:3] - Calculated by the page walk of the guest EPT page tables
 	 * [7:8] - Derived from [7:8] of real exit_qualification
 	 *
 	 * The other bits are set to 0.
 	 */
 	if (!(errcode & PFERR_RSVD_MASK)) {
-		vcpu->arch.exit_qualification &= 0x187;
+		vcpu->arch.exit_qualification &= 0x180;
+		if (write_fault)
+			vcpu->arch.exit_qualification |= EPT_VIOLATION_ACC_WRITE;
+		if (user_fault)
+			vcpu->arch.exit_qualification |= EPT_VIOLATION_ACC_READ;
+		if (fetch_fault)
+			vcpu->arch.exit_qualification |= EPT_VIOLATION_ACC_INSTR;
 		vcpu->arch.exit_qualification |= (pte_access & 0x7) << 3;
 	}
 #endif
diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index 026db42a86c3..58ead7db71a3 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -244,12 +244,49 @@ int kvm_pmu_is_valid_msr_idx(struct kvm_vcpu *vcpu, unsigned idx)
 	return kvm_x86_ops->pmu_ops->is_valid_msr_idx(vcpu, idx);
 }
 
+bool is_vmware_backdoor_pmc(u32 pmc_idx)
+{
+	switch (pmc_idx) {
+	case VMWARE_BACKDOOR_PMC_HOST_TSC:
+	case VMWARE_BACKDOOR_PMC_REAL_TIME:
+	case VMWARE_BACKDOOR_PMC_APPARENT_TIME:
+		return true;
+	}
+	return false;
+}
+
+static int kvm_pmu_rdpmc_vmware(struct kvm_vcpu *vcpu, unsigned idx, u64 *data)
+{
+	u64 ctr_val;
+
+	switch (idx) {
+	case VMWARE_BACKDOOR_PMC_HOST_TSC:
+		ctr_val = rdtsc();
+		break;
+	case VMWARE_BACKDOOR_PMC_REAL_TIME:
+		ctr_val = ktime_get_boot_ns();
+		break;
+	case VMWARE_BACKDOOR_PMC_APPARENT_TIME:
+		ctr_val = ktime_get_boot_ns() +
+			vcpu->kvm->arch.kvmclock_offset;
+		break;
+	default:
+		return 1;
+	}
+
+	*data = ctr_val;
+	return 0;
+}
+
 int kvm_pmu_rdpmc(struct kvm_vcpu *vcpu, unsigned idx, u64 *data)
 {
 	bool fast_mode = idx & (1u << 31);
 	struct kvm_pmc *pmc;
 	u64 ctr_val;
 
+	if (is_vmware_backdoor_pmc(idx))
+		return kvm_pmu_rdpmc_vmware(vcpu, idx, data);
+
 	pmc = kvm_x86_ops->pmu_ops->msr_idx_to_pmc(vcpu, idx);
 	if (!pmc)
 		return 1;
diff --git a/arch/x86/kvm/pmu.h b/arch/x86/kvm/pmu.h
index a9a62b9a73e2..ba8898e1a854 100644
--- a/arch/x86/kvm/pmu.h
+++ b/arch/x86/kvm/pmu.h
@@ -9,6 +9,10 @@
 /* retrieve the 4 bits for EN and PMI out of IA32_FIXED_CTR_CTRL */
 #define fixed_ctrl_field(ctrl_reg, idx) (((ctrl_reg) >> ((idx)*4)) & 0xf)
 
+#define VMWARE_BACKDOOR_PMC_HOST_TSC		0x10000
+#define VMWARE_BACKDOOR_PMC_REAL_TIME		0x10001
+#define VMWARE_BACKDOOR_PMC_APPARENT_TIME	0x10002
+
 struct kvm_event_hw_type_mapping {
 	u8 eventsel;
 	u8 unit_mask;
@@ -114,6 +118,8 @@ void kvm_pmu_reset(struct kvm_vcpu *vcpu);
 void kvm_pmu_init(struct kvm_vcpu *vcpu);
 void kvm_pmu_destroy(struct kvm_vcpu *vcpu);
 
+bool is_vmware_backdoor_pmc(u32 pmc_idx);
+
 extern struct kvm_pmu_ops intel_pmu_ops;
 extern struct kvm_pmu_ops amd_pmu_ops;
 #endif /* __KVM_X86_PMU_H */
diff --git a/arch/x86/kvm/pmu_amd.c b/arch/x86/kvm/pmu_amd.c
index cd944435dfbd..1495a735b38e 100644
--- a/arch/x86/kvm/pmu_amd.c
+++ b/arch/x86/kvm/pmu_amd.c
@@ -19,6 +19,21 @@
 #include "lapic.h"
 #include "pmu.h"
 
+enum pmu_type {
+	PMU_TYPE_COUNTER = 0,
+	PMU_TYPE_EVNTSEL,
+};
+
+enum index {
+	INDEX_ZERO = 0,
+	INDEX_ONE,
+	INDEX_TWO,
+	INDEX_THREE,
+	INDEX_FOUR,
+	INDEX_FIVE,
+	INDEX_ERROR,
+};
+
 /* duplicated from amd_perfmon_event_map, K7 and above should work. */
 static struct kvm_event_hw_type_mapping amd_event_mapping[] = {
 	[0] = { 0x76, 0x00, PERF_COUNT_HW_CPU_CYCLES },
@@ -31,6 +46,88 @@ static struct kvm_event_hw_type_mapping amd_event_mapping[] = {
 	[7] = { 0xd1, 0x00, PERF_COUNT_HW_STALLED_CYCLES_BACKEND },
 };
 
+static unsigned int get_msr_base(struct kvm_pmu *pmu, enum pmu_type type)
+{
+	struct kvm_vcpu *vcpu = pmu_to_vcpu(pmu);
+
+	if (guest_cpuid_has(vcpu, X86_FEATURE_PERFCTR_CORE)) {
+		if (type == PMU_TYPE_COUNTER)
+			return MSR_F15H_PERF_CTR;
+		else
+			return MSR_F15H_PERF_CTL;
+	} else {
+		if (type == PMU_TYPE_COUNTER)
+			return MSR_K7_PERFCTR0;
+		else
+			return MSR_K7_EVNTSEL0;
+	}
+}
+
+static enum index msr_to_index(u32 msr)
+{
+	switch (msr) {
+	case MSR_F15H_PERF_CTL0:
+	case MSR_F15H_PERF_CTR0:
+	case MSR_K7_EVNTSEL0:
+	case MSR_K7_PERFCTR0:
+		return INDEX_ZERO;
+	case MSR_F15H_PERF_CTL1:
+	case MSR_F15H_PERF_CTR1:
+	case MSR_K7_EVNTSEL1:
+	case MSR_K7_PERFCTR1:
+		return INDEX_ONE;
+	case MSR_F15H_PERF_CTL2:
+	case MSR_F15H_PERF_CTR2:
+	case MSR_K7_EVNTSEL2:
+	case MSR_K7_PERFCTR2:
+		return INDEX_TWO;
+	case MSR_F15H_PERF_CTL3:
+	case MSR_F15H_PERF_CTR3:
+	case MSR_K7_EVNTSEL3:
+	case MSR_K7_PERFCTR3:
+		return INDEX_THREE;
+	case MSR_F15H_PERF_CTL4:
+	case MSR_F15H_PERF_CTR4:
+		return INDEX_FOUR;
+	case MSR_F15H_PERF_CTL5:
+	case MSR_F15H_PERF_CTR5:
+		return INDEX_FIVE;
+	default:
+		return INDEX_ERROR;
+	}
+}
+
+static inline struct kvm_pmc *get_gp_pmc_amd(struct kvm_pmu *pmu, u32 msr,
+					     enum pmu_type type)
+{
+	switch (msr) {
+	case MSR_F15H_PERF_CTL0:
+	case MSR_F15H_PERF_CTL1:
+	case MSR_F15H_PERF_CTL2:
+	case MSR_F15H_PERF_CTL3:
+	case MSR_F15H_PERF_CTL4:
+	case MSR_F15H_PERF_CTL5:
+	case MSR_K7_EVNTSEL0 ... MSR_K7_EVNTSEL3:
+		if (type != PMU_TYPE_EVNTSEL)
+			return NULL;
+		break;
+	case MSR_F15H_PERF_CTR0:
+	case MSR_F15H_PERF_CTR1:
+	case MSR_F15H_PERF_CTR2:
+	case MSR_F15H_PERF_CTR3:
+	case MSR_F15H_PERF_CTR4:
+	case MSR_F15H_PERF_CTR5:
+	case MSR_K7_PERFCTR0 ... MSR_K7_PERFCTR3:
+		if (type != PMU_TYPE_COUNTER)
+			return NULL;
+		break;
+	default:
+		return NULL;
+	}
+
+	return &pmu->gp_counters[msr_to_index(msr)];
+}
+
 static unsigned amd_find_arch_event(struct kvm_pmu *pmu,
 				    u8 event_select,
 				    u8 unit_mask)
@@ -64,7 +161,18 @@ static bool amd_pmc_is_enabled(struct kvm_pmc *pmc)
 
 static struct kvm_pmc *amd_pmc_idx_to_pmc(struct kvm_pmu *pmu, int pmc_idx)
 {
-	return get_gp_pmc(pmu, MSR_K7_EVNTSEL0 + pmc_idx, MSR_K7_EVNTSEL0);
+	unsigned int base = get_msr_base(pmu, PMU_TYPE_COUNTER);
+	struct kvm_vcpu *vcpu = pmu_to_vcpu(pmu);
+
+	if (guest_cpuid_has(vcpu, X86_FEATURE_PERFCTR_CORE)) {
+		/*
+		 * The idx is contiguous. The MSRs are not. The counter MSRs
+		 * are interleaved with the event select MSRs.
+		 */
+		pmc_idx *= 2;
+	}
+
+	return get_gp_pmc_amd(pmu, base + pmc_idx, PMU_TYPE_COUNTER);
 }
 
 /* returns 0 if idx's corresponding MSR exists; otherwise returns 1. */
@@ -96,8 +204,8 @@ static bool amd_is_valid_msr(struct kvm_vcpu *vcpu, u32 msr)
 	struct kvm_pmu *pmu = vcpu_to_pmu(vcpu);
 	int ret = false;
 
-	ret = get_gp_pmc(pmu, msr, MSR_K7_PERFCTR0) ||
-		get_gp_pmc(pmu, msr, MSR_K7_EVNTSEL0);
+	ret = get_gp_pmc_amd(pmu, msr, PMU_TYPE_COUNTER) ||
+		get_gp_pmc_amd(pmu, msr, PMU_TYPE_EVNTSEL);
 
 	return ret;
 }
@@ -107,14 +215,14 @@ static int amd_pmu_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *data)
 	struct kvm_pmu *pmu = vcpu_to_pmu(vcpu);
 	struct kvm_pmc *pmc;
 
-	/* MSR_K7_PERFCTRn */
-	pmc = get_gp_pmc(pmu, msr, MSR_K7_PERFCTR0);
+	/* MSR_PERFCTRn */
+	pmc = get_gp_pmc_amd(pmu, msr, PMU_TYPE_COUNTER);
 	if (pmc) {
 		*data = pmc_read_counter(pmc);
 		return 0;
 	}
-	/* MSR_K7_EVNTSELn */
-	pmc = get_gp_pmc(pmu, msr, MSR_K7_EVNTSEL0);
+	/* MSR_EVNTSELn */
+	pmc = get_gp_pmc_amd(pmu, msr, PMU_TYPE_EVNTSEL);
 	if (pmc) {
 		*data = pmc->eventsel;
 		return 0;
@@ -130,14 +238,14 @@ static int amd_pmu_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 	u32 msr = msr_info->index;
 	u64 data = msr_info->data;
 
-	/* MSR_K7_PERFCTRn */
-	pmc = get_gp_pmc(pmu, msr, MSR_K7_PERFCTR0);
+	/* MSR_PERFCTRn */
+	pmc = get_gp_pmc_amd(pmu, msr, PMU_TYPE_COUNTER);
 	if (pmc) {
 		pmc->counter += data - pmc_read_counter(pmc);
 		return 0;
 	}
-	/* MSR_K7_EVNTSELn */
-	pmc = get_gp_pmc(pmu, msr, MSR_K7_EVNTSEL0);
+	/* MSR_EVNTSELn */
+	pmc = get_gp_pmc_amd(pmu, msr, PMU_TYPE_EVNTSEL);
 	if (pmc) {
 		if (data == pmc->eventsel)
 			return 0;
@@ -154,7 +262,11 @@ static void amd_pmu_refresh(struct kvm_vcpu *vcpu)
 {
 	struct kvm_pmu *pmu = vcpu_to_pmu(vcpu);
 
-	pmu->nr_arch_gp_counters = AMD64_NUM_COUNTERS;
+	if (guest_cpuid_has(vcpu, X86_FEATURE_PERFCTR_CORE))
+		pmu->nr_arch_gp_counters = AMD64_NUM_COUNTERS_CORE;
+	else
+		pmu->nr_arch_gp_counters = AMD64_NUM_COUNTERS;
+
 	pmu->counter_bitmask[KVM_PMC_GP] = ((u64)1 << 48) - 1;
 	pmu->reserved_bits = 0xffffffff00200000ull;
 	/* not applicable to AMD; but clean them to prevent any fall out */
@@ -169,7 +281,9 @@ static void amd_pmu_init(struct kvm_vcpu *vcpu)
 	struct kvm_pmu *pmu = vcpu_to_pmu(vcpu);
 	int i;
 
-	for (i = 0; i < AMD64_NUM_COUNTERS ; i++) {
+	BUILD_BUG_ON(AMD64_NUM_COUNTERS_CORE > INTEL_PMC_MAX_GENERIC);
+
+	for (i = 0; i < AMD64_NUM_COUNTERS_CORE ; i++) {
 		pmu->gp_counters[i].type = KVM_PMC_GP;
 		pmu->gp_counters[i].vcpu = vcpu;
 		pmu->gp_counters[i].idx = i;
@@ -181,7 +295,7 @@ static void amd_pmu_reset(struct kvm_vcpu *vcpu)
 	struct kvm_pmu *pmu = vcpu_to_pmu(vcpu);
 	int i;
 
-	for (i = 0; i < AMD64_NUM_COUNTERS; i++) {
+	for (i = 0; i < AMD64_NUM_COUNTERS_CORE; i++) {
 		struct kvm_pmc *pmc = &pmu->gp_counters[i];
 
 		pmc_stop_counter(pmc);
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 9d2043f94e29..1fc05e428aba 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -131,6 +131,28 @@ static const u32 host_save_user_msrs[] = {
 
 #define NR_HOST_SAVE_USER_MSRS ARRAY_SIZE(host_save_user_msrs)
 
+struct kvm_sev_info {
+	bool active;		/* SEV enabled guest */
+	unsigned int asid;	/* ASID used for this guest */
+	unsigned int handle;	/* SEV firmware handle */
+	int fd;			/* SEV device fd */
+	unsigned long pages_locked; /* Number of pages locked */
+	struct list_head regions_list;  /* List of registered regions */
+};
+
+struct kvm_svm {
+	struct kvm kvm;
+
+	/* Struct members for AVIC */
+	u32 avic_vm_id;
+	u32 ldr_mode;
+	struct page *avic_logical_id_table_page;
+	struct page *avic_physical_id_table_page;
+	struct hlist_node hnode;
+
+	struct kvm_sev_info sev_info;
+};
+
 struct kvm_vcpu;
 
 struct nested_state {
@@ -276,6 +298,54 @@ static bool npt_enabled = true;
 static bool npt_enabled;
 #endif
 
+/*
+ * These 2 parameters are used to config the controls for Pause-Loop Exiting:
+ * pause_filter_count: On processors that support Pause filtering(indicated
+ *	by CPUID Fn8000_000A_EDX), the VMCB provides a 16 bit pause filter
+ *	count value. On VMRUN this value is loaded into an internal counter.
+ *	Each time a pause instruction is executed, this counter is decremented
+ *	until it reaches zero at which time a #VMEXIT is generated if pause
+ *	intercept is enabled. Refer to  AMD APM Vol 2 Section 15.14.4 Pause
+ *	Intercept Filtering for more details.
+ *	This also indicate if ple logic enabled.
+ *
+ * pause_filter_thresh: In addition, some processor families support advanced
+ *	pause filtering (indicated by CPUID Fn8000_000A_EDX) upper bound on
+ *	the amount of time a guest is allowed to execute in a pause loop.
+ *	In this mode, a 16-bit pause filter threshold field is added in the
+ *	VMCB. The threshold value is a cycle count that is used to reset the
+ *	pause counter. As with simple pause filtering, VMRUN loads the pause
+ *	count value from VMCB into an internal counter. Then, on each pause
+ *	instruction the hardware checks the elapsed number of cycles since
+ *	the most recent pause instruction against the pause filter threshold.
+ *	If the elapsed cycle count is greater than the pause filter threshold,
+ *	then the internal pause count is reloaded from the VMCB and execution
+ *	continues. If the elapsed cycle count is less than the pause filter
+ *	threshold, then the internal pause count is decremented. If the count
+ *	value is less than zero and PAUSE intercept is enabled, a #VMEXIT is
+ *	triggered. If advanced pause filtering is supported and pause filter
+ *	threshold field is set to zero, the filter will operate in the simpler,
+ *	count only mode.
+ */
+
+static unsigned short pause_filter_thresh = KVM_DEFAULT_PLE_GAP;
+module_param(pause_filter_thresh, ushort, 0444);
+
+static unsigned short pause_filter_count = KVM_SVM_DEFAULT_PLE_WINDOW;
+module_param(pause_filter_count, ushort, 0444);
+
+/* Default doubles per-vcpu window every exit. */
+static unsigned short pause_filter_count_grow = KVM_DEFAULT_PLE_WINDOW_GROW;
+module_param(pause_filter_count_grow, ushort, 0444);
+
+/* Default resets per-vcpu window every exit to pause_filter_count. */
+static unsigned short pause_filter_count_shrink = KVM_DEFAULT_PLE_WINDOW_SHRINK;
+module_param(pause_filter_count_shrink, ushort, 0444);
+
+/* Default is to compute the maximum so we can never overflow. */
+static unsigned short pause_filter_count_max = KVM_SVM_DEFAULT_PLE_WINDOW_MAX;
+module_param(pause_filter_count_max, ushort, 0444);
+
 /* allow nested paging (virtualized MMU) for all guests */
 static int npt = true;
 module_param(npt, int, S_IRUGO);
@@ -352,6 +422,12 @@ struct enc_region {
 	unsigned long size;
 };
 
+
+static inline struct kvm_svm *to_kvm_svm(struct kvm *kvm)
+{
+	return container_of(kvm, struct kvm_svm, kvm);
+}
+
 static inline bool svm_sev_enabled(void)
 {
 	return max_sev_asid;
@@ -359,14 +435,14 @@ static inline bool svm_sev_enabled(void)
 
 static inline bool sev_guest(struct kvm *kvm)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 
 	return sev->active;
 }
 
 static inline int sev_get_asid(struct kvm *kvm)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 
 	return sev->asid;
 }
@@ -1083,7 +1159,7 @@ static void disable_nmi_singlestep(struct vcpu_svm *svm)
 }
 
 /* Note:
- * This hash table is used to map VM_ID to a struct kvm_arch,
+ * This hash table is used to map VM_ID to a struct kvm_svm,
  * when handling AMD IOMMU GALOG notification to schedule in
  * a particular vCPU.
  */
@@ -1100,7 +1176,7 @@ static DEFINE_SPINLOCK(svm_vm_data_hash_lock);
 static int avic_ga_log_notifier(u32 ga_tag)
 {
 	unsigned long flags;
-	struct kvm_arch *ka = NULL;
+	struct kvm_svm *kvm_svm;
 	struct kvm_vcpu *vcpu = NULL;
 	u32 vm_id = AVIC_GATAG_TO_VMID(ga_tag);
 	u32 vcpu_id = AVIC_GATAG_TO_VCPUID(ga_tag);
@@ -1108,13 +1184,10 @@ static int avic_ga_log_notifier(u32 ga_tag)
 	pr_debug("SVM: %s: vm_id=%#x, vcpu_id=%#x\n", __func__, vm_id, vcpu_id);
 
 	spin_lock_irqsave(&svm_vm_data_hash_lock, flags);
-	hash_for_each_possible(svm_vm_data_hash, ka, hnode, vm_id) {
-		struct kvm *kvm = container_of(ka, struct kvm, arch);
-		struct kvm_arch *vm_data = &kvm->arch;
-
-		if (vm_data->avic_vm_id != vm_id)
+	hash_for_each_possible(svm_vm_data_hash, kvm_svm, hnode, vm_id) {
+		if (kvm_svm->avic_vm_id != vm_id)
 			continue;
-		vcpu = kvm_get_vcpu_by_id(kvm, vcpu_id);
+		vcpu = kvm_get_vcpu_by_id(&kvm_svm->kvm, vcpu_id);
 		break;
 	}
 	spin_unlock_irqrestore(&svm_vm_data_hash_lock, flags);
@@ -1172,6 +1245,42 @@ err:
 	return rc;
 }
 
+static void grow_ple_window(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+	struct vmcb_control_area *control = &svm->vmcb->control;
+	int old = control->pause_filter_count;
+
+	control->pause_filter_count = __grow_ple_window(old,
+							pause_filter_count,
+							pause_filter_count_grow,
+							pause_filter_count_max);
+
+	if (control->pause_filter_count != old)
+		mark_dirty(svm->vmcb, VMCB_INTERCEPTS);
+
+	trace_kvm_ple_window_grow(vcpu->vcpu_id,
+				  control->pause_filter_count, old);
+}
+
+static void shrink_ple_window(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+	struct vmcb_control_area *control = &svm->vmcb->control;
+	int old = control->pause_filter_count;
+
+	control->pause_filter_count =
+				__shrink_ple_window(old,
+						    pause_filter_count,
+						    pause_filter_count_shrink,
+						    pause_filter_count);
+	if (control->pause_filter_count != old)
+		mark_dirty(svm->vmcb, VMCB_INTERCEPTS);
+
+	trace_kvm_ple_window_shrink(vcpu->vcpu_id,
+				    control->pause_filter_count, old);
+}
+
 static __init int svm_hardware_setup(void)
 {
 	int cpu;
@@ -1202,6 +1311,14 @@ static __init int svm_hardware_setup(void)
 		kvm_tsc_scaling_ratio_frac_bits = 32;
 	}
 
+	/* Check for pause filtering support */
+	if (!boot_cpu_has(X86_FEATURE_PAUSEFILTER)) {
+		pause_filter_count = 0;
+		pause_filter_thresh = 0;
+	} else if (!boot_cpu_has(X86_FEATURE_PFTHRESHOLD)) {
+		pause_filter_thresh = 0;
+	}
+
 	if (nested) {
 		printk(KERN_INFO "kvm: Nested Virtualization enabled\n");
 		kvm_enable_efer_bits(EFER_SVME | EFER_LMSLE);
@@ -1306,12 +1423,23 @@ static void init_sys_seg(struct vmcb_seg *seg, uint32_t type)
 	seg->base = 0;
 }
 
+static u64 svm_read_l1_tsc_offset(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	if (is_guest_mode(vcpu))
+		return svm->nested.hsave->control.tsc_offset;
+
+	return vcpu->arch.tsc_offset;
+}
+
 static void svm_write_tsc_offset(struct kvm_vcpu *vcpu, u64 offset)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
 	u64 g_tsc_offset = 0;
 
 	if (is_guest_mode(vcpu)) {
+		/* Write L1's TSC offset.  */
 		g_tsc_offset = svm->vmcb->control.tsc_offset -
 			       svm->nested.hsave->control.tsc_offset;
 		svm->nested.hsave->control.tsc_offset = offset;
@@ -1328,10 +1456,10 @@ static void svm_write_tsc_offset(struct kvm_vcpu *vcpu, u64 offset)
 static void avic_init_vmcb(struct vcpu_svm *svm)
 {
 	struct vmcb *vmcb = svm->vmcb;
-	struct kvm_arch *vm_data = &svm->vcpu.kvm->arch;
+	struct kvm_svm *kvm_svm = to_kvm_svm(svm->vcpu.kvm);
 	phys_addr_t bpa = __sme_set(page_to_phys(svm->avic_backing_page));
-	phys_addr_t lpa = __sme_set(page_to_phys(vm_data->avic_logical_id_table_page));
-	phys_addr_t ppa = __sme_set(page_to_phys(vm_data->avic_physical_id_table_page));
+	phys_addr_t lpa = __sme_set(page_to_phys(kvm_svm->avic_logical_id_table_page));
+	phys_addr_t ppa = __sme_set(page_to_phys(kvm_svm->avic_physical_id_table_page));
 
 	vmcb->control.avic_backing_page = bpa & AVIC_HPA_MASK;
 	vmcb->control.avic_logical_id = lpa & AVIC_HPA_MASK;
@@ -1363,6 +1491,14 @@ static void init_vmcb(struct vcpu_svm *svm)
 	set_exception_intercept(svm, MC_VECTOR);
 	set_exception_intercept(svm, AC_VECTOR);
 	set_exception_intercept(svm, DB_VECTOR);
+	/*
+	 * Guest access to VMware backdoor ports could legitimately
+	 * trigger #GP because of TSS I/O permission bitmap.
+	 * We intercept those #GP and allow access to them anyway
+	 * as VMware does.
+	 */
+	if (enable_vmware_backdoor)
+		set_exception_intercept(svm, GP_VECTOR);
 
 	set_intercept(svm, INTERCEPT_INTR);
 	set_intercept(svm, INTERCEPT_NMI);
@@ -1371,7 +1507,6 @@ static void init_vmcb(struct vcpu_svm *svm)
 	set_intercept(svm, INTERCEPT_RDPMC);
 	set_intercept(svm, INTERCEPT_CPUID);
 	set_intercept(svm, INTERCEPT_INVD);
-	set_intercept(svm, INTERCEPT_HLT);
 	set_intercept(svm, INTERCEPT_INVLPG);
 	set_intercept(svm, INTERCEPT_INVLPGA);
 	set_intercept(svm, INTERCEPT_IOIO_PROT);
@@ -1389,11 +1524,14 @@ static void init_vmcb(struct vcpu_svm *svm)
 	set_intercept(svm, INTERCEPT_XSETBV);
 	set_intercept(svm, INTERCEPT_RSM);
 
-	if (!kvm_mwait_in_guest()) {
+	if (!kvm_mwait_in_guest(svm->vcpu.kvm)) {
 		set_intercept(svm, INTERCEPT_MONITOR);
 		set_intercept(svm, INTERCEPT_MWAIT);
 	}
 
+	if (!kvm_hlt_in_guest(svm->vcpu.kvm))
+		set_intercept(svm, INTERCEPT_HLT);
+
 	control->iopm_base_pa = __sme_set(iopm_base);
 	control->msrpm_base_pa = __sme_set(__pa(svm->msrpm));
 	control->int_ctl = V_INTR_MASKING_MASK;
@@ -1449,9 +1587,13 @@ static void init_vmcb(struct vcpu_svm *svm)
 	svm->nested.vmcb = 0;
 	svm->vcpu.arch.hflags = 0;
 
-	if (boot_cpu_has(X86_FEATURE_PAUSEFILTER)) {
-		control->pause_filter_count = 3000;
+	if (pause_filter_count) {
+		control->pause_filter_count = pause_filter_count;
+		if (pause_filter_thresh)
+			control->pause_filter_thresh = pause_filter_thresh;
 		set_intercept(svm, INTERCEPT_PAUSE);
+	} else {
+		clr_intercept(svm, INTERCEPT_PAUSE);
 	}
 
 	if (kvm_vcpu_apicv_active(&svm->vcpu))
@@ -1488,12 +1630,12 @@ static u64 *avic_get_physical_id_entry(struct kvm_vcpu *vcpu,
 				       unsigned int index)
 {
 	u64 *avic_physical_id_table;
-	struct kvm_arch *vm_data = &vcpu->kvm->arch;
+	struct kvm_svm *kvm_svm = to_kvm_svm(vcpu->kvm);
 
 	if (index >= AVIC_MAX_PHYSICAL_ID_COUNT)
 		return NULL;
 
-	avic_physical_id_table = page_address(vm_data->avic_physical_id_table_page);
+	avic_physical_id_table = page_address(kvm_svm->avic_physical_id_table_page);
 
 	return &avic_physical_id_table[index];
 }
@@ -1576,7 +1718,7 @@ static void __sev_asid_free(int asid)
 
 static void sev_asid_free(struct kvm *kvm)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 
 	__sev_asid_free(sev->asid);
 }
@@ -1616,7 +1758,7 @@ static struct page **sev_pin_memory(struct kvm *kvm, unsigned long uaddr,
 				    unsigned long ulen, unsigned long *n,
 				    int write)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 	unsigned long npages, npinned, size;
 	unsigned long locked, lock_limit;
 	struct page **pages;
@@ -1667,7 +1809,7 @@ err:
 static void sev_unpin_memory(struct kvm *kvm, struct page **pages,
 			     unsigned long npages)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 
 	release_pages(pages, npages);
 	kvfree(pages);
@@ -1705,9 +1847,20 @@ static void __unregister_enc_region_locked(struct kvm *kvm,
 	kfree(region);
 }
 
+static struct kvm *svm_vm_alloc(void)
+{
+	struct kvm_svm *kvm_svm = kzalloc(sizeof(struct kvm_svm), GFP_KERNEL);
+	return &kvm_svm->kvm;
+}
+
+static void svm_vm_free(struct kvm *kvm)
+{
+	kfree(to_kvm_svm(kvm));
+}
+
 static void sev_vm_destroy(struct kvm *kvm)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 	struct list_head *head = &sev->regions_list;
 	struct list_head *pos, *q;
 
@@ -1736,18 +1889,18 @@ static void sev_vm_destroy(struct kvm *kvm)
 static void avic_vm_destroy(struct kvm *kvm)
 {
 	unsigned long flags;
-	struct kvm_arch *vm_data = &kvm->arch;
+	struct kvm_svm *kvm_svm = to_kvm_svm(kvm);
 
 	if (!avic)
 		return;
 
-	if (vm_data->avic_logical_id_table_page)
-		__free_page(vm_data->avic_logical_id_table_page);
-	if (vm_data->avic_physical_id_table_page)
-		__free_page(vm_data->avic_physical_id_table_page);
+	if (kvm_svm->avic_logical_id_table_page)
+		__free_page(kvm_svm->avic_logical_id_table_page);
+	if (kvm_svm->avic_physical_id_table_page)
+		__free_page(kvm_svm->avic_physical_id_table_page);
 
 	spin_lock_irqsave(&svm_vm_data_hash_lock, flags);
-	hash_del(&vm_data->hnode);
+	hash_del(&kvm_svm->hnode);
 	spin_unlock_irqrestore(&svm_vm_data_hash_lock, flags);
 }
 
@@ -1761,10 +1914,10 @@ static int avic_vm_init(struct kvm *kvm)
 {
 	unsigned long flags;
 	int err = -ENOMEM;
-	struct kvm_arch *vm_data = &kvm->arch;
+	struct kvm_svm *kvm_svm = to_kvm_svm(kvm);
+	struct kvm_svm *k2;
 	struct page *p_page;
 	struct page *l_page;
-	struct kvm_arch *ka;
 	u32 vm_id;
 
 	if (!avic)
@@ -1775,7 +1928,7 @@ static int avic_vm_init(struct kvm *kvm)
 	if (!p_page)
 		goto free_avic;
 
-	vm_data->avic_physical_id_table_page = p_page;
+	kvm_svm->avic_physical_id_table_page = p_page;
 	clear_page(page_address(p_page));
 
 	/* Allocating logical APIC ID table (4KB) */
@@ -1783,7 +1936,7 @@ static int avic_vm_init(struct kvm *kvm)
 	if (!l_page)
 		goto free_avic;
 
-	vm_data->avic_logical_id_table_page = l_page;
+	kvm_svm->avic_logical_id_table_page = l_page;
 	clear_page(page_address(l_page));
 
 	spin_lock_irqsave(&svm_vm_data_hash_lock, flags);
@@ -1795,15 +1948,13 @@ static int avic_vm_init(struct kvm *kvm)
 	}
 	/* Is it still in use? Only possible if wrapped at least once */
 	if (next_vm_id_wrapped) {
-		hash_for_each_possible(svm_vm_data_hash, ka, hnode, vm_id) {
-			struct kvm *k2 = container_of(ka, struct kvm, arch);
-			struct kvm_arch *vd2 = &k2->arch;
-			if (vd2->avic_vm_id == vm_id)
+		hash_for_each_possible(svm_vm_data_hash, k2, hnode, vm_id) {
+			if (k2->avic_vm_id == vm_id)
 				goto again;
 		}
 	}
-	vm_data->avic_vm_id = vm_id;
-	hash_add(svm_vm_data_hash, &vm_data->hnode, vm_data->avic_vm_id);
+	kvm_svm->avic_vm_id = vm_id;
+	hash_add(svm_vm_data_hash, &kvm_svm->hnode, kvm_svm->avic_vm_id);
 	spin_unlock_irqrestore(&svm_vm_data_hash_lock, flags);
 
 	return 0;
@@ -2535,14 +2686,7 @@ static int bp_interception(struct vcpu_svm *svm)
 
 static int ud_interception(struct vcpu_svm *svm)
 {
-	int er;
-
-	er = emulate_instruction(&svm->vcpu, EMULTYPE_TRAP_UD);
-	if (er == EMULATE_USER_EXIT)
-		return 0;
-	if (er != EMULATE_DONE)
-		kvm_queue_exception(&svm->vcpu, UD_VECTOR);
-	return 1;
+	return handle_ud(&svm->vcpu);
 }
 
 static int ac_interception(struct vcpu_svm *svm)
@@ -2551,6 +2695,23 @@ static int ac_interception(struct vcpu_svm *svm)
 	return 1;
 }
 
+static int gp_interception(struct vcpu_svm *svm)
+{
+	struct kvm_vcpu *vcpu = &svm->vcpu;
+	u32 error_code = svm->vmcb->control.exit_info_1;
+	int er;
+
+	WARN_ON_ONCE(!enable_vmware_backdoor);
+
+	er = emulate_instruction(vcpu,
+		EMULTYPE_VMWARE | EMULTYPE_NO_UD_ON_FAIL);
+	if (er == EMULATE_USER_EXIT)
+		return 0;
+	else if (er != EMULATE_DONE)
+		kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
+	return 1;
+}
+
 static bool is_erratum_383(void)
 {
 	int err, i;
@@ -2639,7 +2800,7 @@ static int io_interception(struct vcpu_svm *svm)
 {
 	struct kvm_vcpu *vcpu = &svm->vcpu;
 	u32 io_info = svm->vmcb->control.exit_info_1; /* address size bug? */
-	int size, in, string, ret;
+	int size, in, string;
 	unsigned port;
 
 	++svm->vcpu.stat.io_exits;
@@ -2651,16 +2812,8 @@ static int io_interception(struct vcpu_svm *svm)
 	port = io_info >> 16;
 	size = (io_info & SVM_IOIO_SIZE_MASK) >> SVM_IOIO_SIZE_SHIFT;
 	svm->next_rip = svm->vmcb->control.exit_info_2;
-	ret = kvm_skip_emulated_instruction(&svm->vcpu);
 
-	/*
-	 * TODO: we might be squashing a KVM_GUESTDBG_SINGLESTEP-triggered
-	 * KVM_EXIT_DEBUG here.
-	 */
-	if (in)
-		return kvm_fast_pio_in(vcpu, size, port) && ret;
-	else
-		return kvm_fast_pio_out(vcpu, size, port) && ret;
+	return kvm_fast_pio(&svm->vcpu, size, port, in);
 }
 
 static int nmi_interception(struct vcpu_svm *svm)
@@ -3180,6 +3333,7 @@ static int nested_svm_vmexit(struct vcpu_svm *svm)
 	/* Restore the original control entries */
 	copy_vmcb_control_area(vmcb, hsave);
 
+	svm->vcpu.arch.tsc_offset = svm->vmcb->control.tsc_offset;
 	kvm_clear_exception_queue(&svm->vcpu);
 	kvm_clear_interrupt_queue(&svm->vcpu);
 
@@ -3340,10 +3494,12 @@ static void enter_svm_guest_mode(struct vcpu_svm *svm, u64 vmcb_gpa,
 	/* We don't want to see VMMCALLs from a nested guest */
 	clr_intercept(svm, INTERCEPT_VMMCALL);
 
+	svm->vcpu.arch.tsc_offset += nested_vmcb->control.tsc_offset;
+	svm->vmcb->control.tsc_offset = svm->vcpu.arch.tsc_offset;
+
 	svm->vmcb->control.virt_ext = nested_vmcb->control.virt_ext;
 	svm->vmcb->control.int_vector = nested_vmcb->control.int_vector;
 	svm->vmcb->control.int_state = nested_vmcb->control.int_state;
-	svm->vmcb->control.tsc_offset += nested_vmcb->control.tsc_offset;
 	svm->vmcb->control.event_inj = nested_vmcb->control.event_inj;
 	svm->vmcb->control.event_inj_err = nested_vmcb->control.event_inj_err;
 
@@ -3893,12 +4049,6 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 	struct vcpu_svm *svm = to_svm(vcpu);
 
 	switch (msr_info->index) {
-	case MSR_IA32_TSC: {
-		msr_info->data = svm->vmcb->control.tsc_offset +
-			kvm_scale_tsc(vcpu, rdtsc());
-
-		break;
-	}
 	case MSR_STAR:
 		msr_info->data = svm->vmcb->save.star;
 		break;
@@ -4051,9 +4201,6 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
 		svm->vmcb->save.g_pat = data;
 		mark_dirty(svm->vmcb, VMCB_NPT);
 		break;
-	case MSR_IA32_TSC:
-		kvm_write_tsc(vcpu, msr);
-		break;
 	case MSR_IA32_SPEC_CTRL:
 		if (!msr->host_initiated &&
 		    !guest_cpuid_has(vcpu, X86_FEATURE_IBRS))
@@ -4233,6 +4380,9 @@ static int pause_interception(struct vcpu_svm *svm)
 	struct kvm_vcpu *vcpu = &svm->vcpu;
 	bool in_kernel = (svm_get_cpl(vcpu) == 0);
 
+	if (pause_filter_thresh)
+		grow_ple_window(vcpu);
+
 	kvm_vcpu_on_spin(vcpu, in_kernel);
 	return 1;
 }
@@ -4323,7 +4473,7 @@ static int avic_incomplete_ipi_interception(struct vcpu_svm *svm)
 
 static u32 *avic_get_logical_id_entry(struct kvm_vcpu *vcpu, u32 ldr, bool flat)
 {
-	struct kvm_arch *vm_data = &vcpu->kvm->arch;
+	struct kvm_svm *kvm_svm = to_kvm_svm(vcpu->kvm);
 	int index;
 	u32 *logical_apic_id_table;
 	int dlid = GET_APIC_LOGICAL_ID(ldr);
@@ -4345,7 +4495,7 @@ static u32 *avic_get_logical_id_entry(struct kvm_vcpu *vcpu, u32 ldr, bool flat)
 		index = (cluster << 2) + apic;
 	}
 
-	logical_apic_id_table = (u32 *) page_address(vm_data->avic_logical_id_table_page);
+	logical_apic_id_table = (u32 *) page_address(kvm_svm->avic_logical_id_table_page);
 
 	return &logical_apic_id_table[index];
 }
@@ -4425,7 +4575,7 @@ static int avic_handle_apic_id_update(struct kvm_vcpu *vcpu)
 static int avic_handle_dfr_update(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
-	struct kvm_arch *vm_data = &vcpu->kvm->arch;
+	struct kvm_svm *kvm_svm = to_kvm_svm(vcpu->kvm);
 	u32 dfr = kvm_lapic_get_reg(vcpu->arch.apic, APIC_DFR);
 	u32 mod = (dfr >> 28) & 0xf;
 
@@ -4434,11 +4584,11 @@ static int avic_handle_dfr_update(struct kvm_vcpu *vcpu)
 	 * If this changes, we need to flush the AVIC logical
 	 * APID id table.
 	 */
-	if (vm_data->ldr_mode == mod)
+	if (kvm_svm->ldr_mode == mod)
 		return 0;
 
-	clear_page(page_address(vm_data->avic_logical_id_table_page));
-	vm_data->ldr_mode = mod;
+	clear_page(page_address(kvm_svm->avic_logical_id_table_page));
+	kvm_svm->ldr_mode = mod;
 
 	if (svm->ldr_reg)
 		avic_handle_ldr_update(vcpu);
@@ -4558,6 +4708,7 @@ static int (*const svm_exit_handlers[])(struct vcpu_svm *svm) = {
 	[SVM_EXIT_EXCP_BASE + PF_VECTOR]	= pf_interception,
 	[SVM_EXIT_EXCP_BASE + MC_VECTOR]	= mc_interception,
 	[SVM_EXIT_EXCP_BASE + AC_VECTOR]	= ac_interception,
+	[SVM_EXIT_EXCP_BASE + GP_VECTOR]	= gp_interception,
 	[SVM_EXIT_INTR]				= intr_interception,
 	[SVM_EXIT_NMI]				= nmi_interception,
 	[SVM_EXIT_SMI]				= nop_on_interception,
@@ -4606,6 +4757,8 @@ static void dump_vmcb(struct kvm_vcpu *vcpu)
 	pr_err("%-20s%08x\n", "exceptions:", control->intercept_exceptions);
 	pr_err("%-20s%016llx\n", "intercepts:", control->intercept);
 	pr_err("%-20s%d\n", "pause filter count:", control->pause_filter_count);
+	pr_err("%-20s%d\n", "pause filter threshold:",
+	       control->pause_filter_thresh);
 	pr_err("%-20s%016llx\n", "iopm_base_pa:", control->iopm_base_pa);
 	pr_err("%-20s%016llx\n", "msrpm_base_pa:", control->msrpm_base_pa);
 	pr_err("%-20s%016llx\n", "tsc_offset:", control->tsc_offset);
@@ -5073,7 +5226,7 @@ static int svm_update_pi_irte(struct kvm *kvm, unsigned int host_irq,
 			/* Try to enable guest_mode in IRTE */
 			pi.base = __sme_set(page_to_phys(svm->avic_backing_page) &
 					    AVIC_HPA_MASK);
-			pi.ga_tag = AVIC_GATAG(kvm->arch.avic_vm_id,
+			pi.ga_tag = AVIC_GATAG(to_kvm_svm(kvm)->avic_vm_id,
 						     svm->vcpu.vcpu_id);
 			pi.is_guest_mode = true;
 			pi.vcpu_data = &vcpu_info;
@@ -5117,9 +5270,8 @@ static int svm_update_pi_irte(struct kvm *kvm, unsigned int host_irq,
 		}
 
 		if (!ret && svm) {
-			trace_kvm_pi_irte_update(svm->vcpu.vcpu_id,
-						 host_irq, e->gsi,
-						 vcpu_info.vector,
+			trace_kvm_pi_irte_update(host_irq, svm->vcpu.vcpu_id,
+						 e->gsi, vcpu_info.vector,
 						 vcpu_info.pi_desc_addr, set);
 		}
 
@@ -5237,6 +5389,11 @@ static int svm_set_tss_addr(struct kvm *kvm, unsigned int addr)
 	return 0;
 }
 
+static int svm_set_identity_map_addr(struct kvm *kvm, u64 ident_addr)
+{
+	return 0;
+}
+
 static void svm_flush_tlb(struct kvm_vcpu *vcpu, bool invalidate_gpa)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
@@ -5538,14 +5695,14 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
 	vcpu->arch.regs[VCPU_REGS_RIP] = svm->vmcb->save.rip;
 
 	if (unlikely(svm->vmcb->control.exit_code == SVM_EXIT_NMI))
-		kvm_before_handle_nmi(&svm->vcpu);
+		kvm_before_interrupt(&svm->vcpu);
 
 	stgi();
 
 	/* Any pending NMI will happen here */
 
 	if (unlikely(svm->vmcb->control.exit_code == SVM_EXIT_NMI))
-		kvm_after_handle_nmi(&svm->vcpu);
+		kvm_after_interrupt(&svm->vcpu);
 
 	sync_cr8_to_lapic(vcpu);
 
@@ -5921,6 +6078,8 @@ static void svm_handle_external_intr(struct kvm_vcpu *vcpu)
 
 static void svm_sched_in(struct kvm_vcpu *vcpu, int cpu)
 {
+	if (pause_filter_thresh)
+		shrink_ple_window(vcpu);
 }
 
 static inline void avic_post_state_restore(struct kvm_vcpu *vcpu)
@@ -6037,7 +6196,7 @@ static int sev_asid_new(void)
 
 static int sev_guest_init(struct kvm *kvm, struct kvm_sev_cmd *argp)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 	int asid, ret;
 
 	ret = -EBUSY;
@@ -6102,14 +6261,14 @@ static int __sev_issue_cmd(int fd, int id, void *data, int *error)
 
 static int sev_issue_cmd(struct kvm *kvm, int id, void *data, int *error)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 
 	return __sev_issue_cmd(sev->fd, id, data, error);
 }
 
 static int sev_launch_start(struct kvm *kvm, struct kvm_sev_cmd *argp)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 	struct sev_data_launch_start *start;
 	struct kvm_sev_launch_start params;
 	void *dh_blob, *session_blob;
@@ -6207,7 +6366,7 @@ static int get_num_contig_pages(int idx, struct page **inpages,
 static int sev_launch_update_data(struct kvm *kvm, struct kvm_sev_cmd *argp)
 {
 	unsigned long vaddr, vaddr_end, next_vaddr, npages, size;
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 	struct kvm_sev_launch_update_data params;
 	struct sev_data_launch_update_data *data;
 	struct page **inpages;
@@ -6283,7 +6442,7 @@ e_free:
 static int sev_launch_measure(struct kvm *kvm, struct kvm_sev_cmd *argp)
 {
 	void __user *measure = (void __user *)(uintptr_t)argp->data;
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 	struct sev_data_launch_measure *data;
 	struct kvm_sev_launch_measure params;
 	void __user *p = NULL;
@@ -6351,7 +6510,7 @@ e_free:
 
 static int sev_launch_finish(struct kvm *kvm, struct kvm_sev_cmd *argp)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 	struct sev_data_launch_finish *data;
 	int ret;
 
@@ -6371,7 +6530,7 @@ static int sev_launch_finish(struct kvm *kvm, struct kvm_sev_cmd *argp)
 
 static int sev_guest_status(struct kvm *kvm, struct kvm_sev_cmd *argp)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 	struct kvm_sev_guest_status params;
 	struct sev_data_guest_status *data;
 	int ret;
@@ -6403,7 +6562,7 @@ static int __sev_issue_dbg_cmd(struct kvm *kvm, unsigned long src,
 			       unsigned long dst, int size,
 			       int *error, bool enc)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 	struct sev_data_dbg *data;
 	int ret;
 
@@ -6635,7 +6794,7 @@ err:
 
 static int sev_launch_secret(struct kvm *kvm, struct kvm_sev_cmd *argp)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 	struct sev_data_launch_secret *data;
 	struct kvm_sev_launch_secret params;
 	struct page **pages;
@@ -6759,7 +6918,7 @@ out:
 static int svm_register_enc_region(struct kvm *kvm,
 				   struct kvm_enc_region *range)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 	struct enc_region *region;
 	int ret = 0;
 
@@ -6801,7 +6960,7 @@ e_free:
 static struct enc_region *
 find_enc_region(struct kvm *kvm, struct kvm_enc_region *range)
 {
-	struct kvm_sev_info *sev = &kvm->arch.sev_info;
+	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 	struct list_head *head = &sev->regions_list;
 	struct enc_region *i;
 
@@ -6859,6 +7018,8 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = {
 	.vcpu_free = svm_free_vcpu,
 	.vcpu_reset = svm_vcpu_reset,
 
+	.vm_alloc = svm_vm_alloc,
+	.vm_free = svm_vm_free,
 	.vm_init = avic_vm_init,
 	.vm_destroy = svm_vm_destroy,
 
@@ -6925,6 +7086,7 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = {
 	.apicv_post_state_restore = avic_post_state_restore,
 
 	.set_tss_addr = svm_set_tss_addr,
+	.set_identity_map_addr = svm_set_identity_map_addr,
 	.get_tdp_level = get_npt_level,
 	.get_mt_mask = svm_get_mt_mask,
 
@@ -6944,6 +7106,7 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = {
 
 	.has_wbinvd_exit = svm_has_wbinvd_exit,
 
+	.read_l1_tsc_offset = svm_read_l1_tsc_offset,
 	.write_tsc_offset = svm_write_tsc_offset,
 
 	.set_tdp_cr3 = set_tdp_cr3,
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 92496b9b5f2b..aa66ccd6ed6c 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -52,9 +52,11 @@
 #include <asm/irq_remapping.h>
 #include <asm/mmu_context.h>
 #include <asm/nospec-branch.h>
+#include <asm/mshyperv.h>
 
 #include "trace.h"
 #include "pmu.h"
+#include "vmx_evmcs.h"
 
 #define __ex(x) __kvm_handle_fault_on_reboot(x)
 #define __ex_clear(x, reg) \
@@ -130,13 +132,15 @@ module_param_named(preemption_timer, enable_preemption_timer, bool, S_IRUGO);
 #endif
 
 #define KVM_GUEST_CR0_MASK (X86_CR0_NW | X86_CR0_CD)
-#define KVM_VM_CR0_ALWAYS_ON_UNRESTRICTED_GUEST (X86_CR0_WP | X86_CR0_NE)
-#define KVM_VM_CR0_ALWAYS_ON						\
-	(KVM_VM_CR0_ALWAYS_ON_UNRESTRICTED_GUEST | X86_CR0_PG | X86_CR0_PE)
+#define KVM_VM_CR0_ALWAYS_ON_UNRESTRICTED_GUEST X86_CR0_NE
+#define KVM_VM_CR0_ALWAYS_ON				\
+	(KVM_VM_CR0_ALWAYS_ON_UNRESTRICTED_GUEST | 	\
+	 X86_CR0_WP | X86_CR0_PG | X86_CR0_PE)
 #define KVM_CR4_GUEST_OWNED_BITS				      \
 	(X86_CR4_PVI | X86_CR4_DE | X86_CR4_PCE | X86_CR4_OSFXSR      \
 	 | X86_CR4_OSXMMEXCPT | X86_CR4_LA57 | X86_CR4_TSD)
 
+#define KVM_VM_CR4_ALWAYS_ON_UNRESTRICTED_GUEST X86_CR4_VMXE
 #define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE)
 #define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE)
 
@@ -165,34 +169,33 @@ module_param_named(preemption_timer, enable_preemption_timer, bool, S_IRUGO);
  * Time is measured based on a counter that runs at the same rate as the TSC,
  * refer SDM volume 3b section 21.6.13 & 22.1.3.
  */
-#define KVM_VMX_DEFAULT_PLE_GAP           128
-#define KVM_VMX_DEFAULT_PLE_WINDOW        4096
-#define KVM_VMX_DEFAULT_PLE_WINDOW_GROW   2
-#define KVM_VMX_DEFAULT_PLE_WINDOW_SHRINK 0
-#define KVM_VMX_DEFAULT_PLE_WINDOW_MAX    \
-		INT_MAX / KVM_VMX_DEFAULT_PLE_WINDOW_GROW
+static unsigned int ple_gap = KVM_DEFAULT_PLE_GAP;
 
-static int ple_gap = KVM_VMX_DEFAULT_PLE_GAP;
-module_param(ple_gap, int, S_IRUGO);
-
-static int ple_window = KVM_VMX_DEFAULT_PLE_WINDOW;
-module_param(ple_window, int, S_IRUGO);
+static unsigned int ple_window = KVM_VMX_DEFAULT_PLE_WINDOW;
+module_param(ple_window, uint, 0444);
 
 /* Default doubles per-vcpu window every exit. */
-static int ple_window_grow = KVM_VMX_DEFAULT_PLE_WINDOW_GROW;
-module_param(ple_window_grow, int, S_IRUGO);
+static unsigned int ple_window_grow = KVM_DEFAULT_PLE_WINDOW_GROW;
+module_param(ple_window_grow, uint, 0444);
 
 /* Default resets per-vcpu window every exit to ple_window. */
-static int ple_window_shrink = KVM_VMX_DEFAULT_PLE_WINDOW_SHRINK;
-module_param(ple_window_shrink, int, S_IRUGO);
+static unsigned int ple_window_shrink = KVM_DEFAULT_PLE_WINDOW_SHRINK;
+module_param(ple_window_shrink, uint, 0444);
 
 /* Default is to compute the maximum so we can never overflow. */
-static int ple_window_actual_max = KVM_VMX_DEFAULT_PLE_WINDOW_MAX;
-static int ple_window_max        = KVM_VMX_DEFAULT_PLE_WINDOW_MAX;
-module_param(ple_window_max, int, S_IRUGO);
+static unsigned int ple_window_max        = KVM_VMX_DEFAULT_PLE_WINDOW_MAX;
+module_param(ple_window_max, uint, 0444);
 
 extern const ulong vmx_return;
 
+struct kvm_vmx {
+	struct kvm kvm;
+
+	unsigned int tss_addr;
+	bool ept_identity_pagetable_done;
+	gpa_t ept_identity_map_addr;
+};
+
 #define NR_AUTOLOAD_MSRS 8
 
 struct vmcs {
@@ -424,6 +427,35 @@ struct __packed vmcs12 {
  */
 #define VMCS12_MAX_FIELD_INDEX 0x17
 
+struct nested_vmx_msrs {
+	/*
+	 * We only store the "true" versions of the VMX capability MSRs. We
+	 * generate the "non-true" versions by setting the must-be-1 bits
+	 * according to the SDM.
+	 */
+	u32 procbased_ctls_low;
+	u32 procbased_ctls_high;
+	u32 secondary_ctls_low;
+	u32 secondary_ctls_high;
+	u32 pinbased_ctls_low;
+	u32 pinbased_ctls_high;
+	u32 exit_ctls_low;
+	u32 exit_ctls_high;
+	u32 entry_ctls_low;
+	u32 entry_ctls_high;
+	u32 misc_low;
+	u32 misc_high;
+	u32 ept_caps;
+	u32 vpid_caps;
+	u64 basic;
+	u64 cr0_fixed0;
+	u64 cr0_fixed1;
+	u64 cr4_fixed0;
+	u64 cr4_fixed1;
+	u64 vmcs_enum;
+	u64 vmfunc_controls;
+};
+
 /*
  * The nested_vmx structure is part of vcpu_vmx, and holds information we need
  * for correct emulation of VMX (i.e., nested VMX) on this vcpu.
@@ -475,32 +507,7 @@ struct nested_vmx {
 	u16 vpid02;
 	u16 last_vpid;
 
-	/*
-	 * We only store the "true" versions of the VMX capability MSRs. We
-	 * generate the "non-true" versions by setting the must-be-1 bits
-	 * according to the SDM.
-	 */
-	u32 nested_vmx_procbased_ctls_low;
-	u32 nested_vmx_procbased_ctls_high;
-	u32 nested_vmx_secondary_ctls_low;
-	u32 nested_vmx_secondary_ctls_high;
-	u32 nested_vmx_pinbased_ctls_low;
-	u32 nested_vmx_pinbased_ctls_high;
-	u32 nested_vmx_exit_ctls_low;
-	u32 nested_vmx_exit_ctls_high;
-	u32 nested_vmx_entry_ctls_low;
-	u32 nested_vmx_entry_ctls_high;
-	u32 nested_vmx_misc_low;
-	u32 nested_vmx_misc_high;
-	u32 nested_vmx_ept_caps;
-	u32 nested_vmx_vpid_caps;
-	u64 nested_vmx_basic;
-	u64 nested_vmx_cr0_fixed0;
-	u64 nested_vmx_cr0_fixed1;
-	u64 nested_vmx_cr4_fixed0;
-	u64 nested_vmx_cr4_fixed1;
-	u64 nested_vmx_vmcs_enum;
-	u64 nested_vmx_vmfunc_controls;
+	struct nested_vmx_msrs msrs;
 
 	/* SMM related state */
 	struct {
@@ -691,6 +698,11 @@ enum segment_cache_field {
 	SEG_FIELD_NR = 4
 };
 
+static inline struct kvm_vmx *to_kvm_vmx(struct kvm *kvm)
+{
+	return container_of(kvm, struct kvm_vmx, kvm);
+}
+
 static inline struct vcpu_vmx *to_vmx(struct kvm_vcpu *vcpu)
 {
 	return container_of(vcpu, struct vcpu_vmx, vcpu);
@@ -953,6 +965,7 @@ static struct vmcs_config {
 	u32 cpu_based_2nd_exec_ctrl;
 	u32 vmexit_ctrl;
 	u32 vmentry_ctrl;
+	struct nested_vmx_msrs nested;
 } vmcs_config;
 
 static struct vmx_capability {
@@ -999,6 +1012,169 @@ static const u32 vmx_msr_index[] = {
 	MSR_EFER, MSR_TSC_AUX, MSR_STAR,
 };
 
+DEFINE_STATIC_KEY_FALSE(enable_evmcs);
+
+#define current_evmcs ((struct hv_enlightened_vmcs *)this_cpu_read(current_vmcs))
+
+#define KVM_EVMCS_VERSION 1
+
+#if IS_ENABLED(CONFIG_HYPERV)
+static bool __read_mostly enlightened_vmcs = true;
+module_param(enlightened_vmcs, bool, 0444);
+
+static inline void evmcs_write64(unsigned long field, u64 value)
+{
+	u16 clean_field;
+	int offset = get_evmcs_offset(field, &clean_field);
+
+	if (offset < 0)
+		return;
+
+	*(u64 *)((char *)current_evmcs + offset) = value;
+
+	current_evmcs->hv_clean_fields &= ~clean_field;
+}
+
+static inline void evmcs_write32(unsigned long field, u32 value)
+{
+	u16 clean_field;
+	int offset = get_evmcs_offset(field, &clean_field);
+
+	if (offset < 0)
+		return;
+
+	*(u32 *)((char *)current_evmcs + offset) = value;
+	current_evmcs->hv_clean_fields &= ~clean_field;
+}
+
+static inline void evmcs_write16(unsigned long field, u16 value)
+{
+	u16 clean_field;
+	int offset = get_evmcs_offset(field, &clean_field);
+
+	if (offset < 0)
+		return;
+
+	*(u16 *)((char *)current_evmcs + offset) = value;
+	current_evmcs->hv_clean_fields &= ~clean_field;
+}
+
+static inline u64 evmcs_read64(unsigned long field)
+{
+	int offset = get_evmcs_offset(field, NULL);
+
+	if (offset < 0)
+		return 0;
+
+	return *(u64 *)((char *)current_evmcs + offset);
+}
+
+static inline u32 evmcs_read32(unsigned long field)
+{
+	int offset = get_evmcs_offset(field, NULL);
+
+	if (offset < 0)
+		return 0;
+
+	return *(u32 *)((char *)current_evmcs + offset);
+}
+
+static inline u16 evmcs_read16(unsigned long field)
+{
+	int offset = get_evmcs_offset(field, NULL);
+
+	if (offset < 0)
+		return 0;
+
+	return *(u16 *)((char *)current_evmcs + offset);
+}
+
+static void evmcs_load(u64 phys_addr)
+{
+	struct hv_vp_assist_page *vp_ap =
+		hv_get_vp_assist_page(smp_processor_id());
+
+	vp_ap->current_nested_vmcs = phys_addr;
+	vp_ap->enlighten_vmentry = 1;
+}
+
+static void evmcs_sanitize_exec_ctrls(struct vmcs_config *vmcs_conf)
+{
+	/*
+	 * Enlightened VMCSv1 doesn't support these:
+	 *
+	 *	POSTED_INTR_NV                  = 0x00000002,
+	 *	GUEST_INTR_STATUS               = 0x00000810,
+	 *	APIC_ACCESS_ADDR		= 0x00002014,
+	 *	POSTED_INTR_DESC_ADDR           = 0x00002016,
+	 *	EOI_EXIT_BITMAP0                = 0x0000201c,
+	 *	EOI_EXIT_BITMAP1                = 0x0000201e,
+	 *	EOI_EXIT_BITMAP2                = 0x00002020,
+	 *	EOI_EXIT_BITMAP3                = 0x00002022,
+	 */
+	vmcs_conf->pin_based_exec_ctrl &= ~PIN_BASED_POSTED_INTR;
+	vmcs_conf->cpu_based_2nd_exec_ctrl &=
+		~SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY;
+	vmcs_conf->cpu_based_2nd_exec_ctrl &=
+		~SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
+	vmcs_conf->cpu_based_2nd_exec_ctrl &=
+		~SECONDARY_EXEC_APIC_REGISTER_VIRT;
+
+	/*
+	 *	GUEST_PML_INDEX			= 0x00000812,
+	 *	PML_ADDRESS			= 0x0000200e,
+	 */
+	vmcs_conf->cpu_based_2nd_exec_ctrl &= ~SECONDARY_EXEC_ENABLE_PML;
+
+	/*	VM_FUNCTION_CONTROL             = 0x00002018, */
+	vmcs_conf->cpu_based_2nd_exec_ctrl &= ~SECONDARY_EXEC_ENABLE_VMFUNC;
+
+	/*
+	 *	EPTP_LIST_ADDRESS               = 0x00002024,
+	 *	VMREAD_BITMAP                   = 0x00002026,
+	 *	VMWRITE_BITMAP                  = 0x00002028,
+	 */
+	vmcs_conf->cpu_based_2nd_exec_ctrl &= ~SECONDARY_EXEC_SHADOW_VMCS;
+
+	/*
+	 *	TSC_MULTIPLIER                  = 0x00002032,
+	 */
+	vmcs_conf->cpu_based_2nd_exec_ctrl &= ~SECONDARY_EXEC_TSC_SCALING;
+
+	/*
+	 *	PLE_GAP                         = 0x00004020,
+	 *	PLE_WINDOW                      = 0x00004022,
+	 */
+	vmcs_conf->cpu_based_2nd_exec_ctrl &= ~SECONDARY_EXEC_PAUSE_LOOP_EXITING;
+
+	/*
+	 *	VMX_PREEMPTION_TIMER_VALUE      = 0x0000482E,
+	 */
+	vmcs_conf->pin_based_exec_ctrl &= ~PIN_BASED_VMX_PREEMPTION_TIMER;
+
+	/*
+	 *      GUEST_IA32_PERF_GLOBAL_CTRL     = 0x00002808,
+	 *      HOST_IA32_PERF_GLOBAL_CTRL      = 0x00002c04,
+	 */
+	vmcs_conf->vmexit_ctrl &= ~VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL;
+	vmcs_conf->vmentry_ctrl &= ~VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL;
+
+	/*
+	 * Currently unsupported in KVM:
+	 *	GUEST_IA32_RTIT_CTL		= 0x00002814,
+	 */
+}
+#else /* !IS_ENABLED(CONFIG_HYPERV) */
+static inline void evmcs_write64(unsigned long field, u64 value) {}
+static inline void evmcs_write32(unsigned long field, u32 value) {}
+static inline void evmcs_write16(unsigned long field, u16 value) {}
+static inline u64 evmcs_read64(unsigned long field) { return 0; }
+static inline u32 evmcs_read32(unsigned long field) { return 0; }
+static inline u16 evmcs_read16(unsigned long field) { return 0; }
+static inline void evmcs_load(u64 phys_addr) {}
+static inline void evmcs_sanitize_exec_ctrls(struct vmcs_config *vmcs_conf) {}
+#endif /* IS_ENABLED(CONFIG_HYPERV) */
+
 static inline bool is_exception_n(u32 intr_info, u8 vector)
 {
 	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK |
@@ -1031,6 +1207,11 @@ static inline bool is_invalid_opcode(u32 intr_info)
 	return is_exception_n(intr_info, UD_VECTOR);
 }
 
+static inline bool is_gp_fault(u32 intr_info)
+{
+	return is_exception_n(intr_info, GP_VECTOR);
+}
+
 static inline bool is_external_interrupt(u32 intr_info)
 {
 	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VALID_MASK))
@@ -1320,7 +1501,7 @@ static inline bool report_flexpriority(void)
 
 static inline unsigned nested_cpu_vmx_misc_cr3_count(struct kvm_vcpu *vcpu)
 {
-	return vmx_misc_cr3_count(to_vmx(vcpu)->nested.nested_vmx_misc_low);
+	return vmx_misc_cr3_count(to_vmx(vcpu)->nested.msrs.misc_low);
 }
 
 static inline bool nested_cpu_has(struct vmcs12 *vmcs12, u32 bit)
@@ -1341,6 +1522,16 @@ static inline bool nested_cpu_has_preemption_timer(struct vmcs12 *vmcs12)
 		PIN_BASED_VMX_PREEMPTION_TIMER;
 }
 
+static inline bool nested_cpu_has_nmi_exiting(struct vmcs12 *vmcs12)
+{
+	return vmcs12->pin_based_vm_exec_control & PIN_BASED_NMI_EXITING;
+}
+
+static inline bool nested_cpu_has_virtual_nmis(struct vmcs12 *vmcs12)
+{
+	return vmcs12->pin_based_vm_exec_control & PIN_BASED_VIRTUAL_NMIS;
+}
+
 static inline int nested_cpu_has_ept(struct vmcs12 *vmcs12)
 {
 	return nested_cpu_has2(vmcs12, SECONDARY_EXEC_ENABLE_EPT);
@@ -1479,6 +1670,9 @@ static void vmcs_load(struct vmcs *vmcs)
 	u64 phys_addr = __pa(vmcs);
 	u8 error;
 
+	if (static_branch_unlikely(&enable_evmcs))
+		return evmcs_load(phys_addr);
+
 	asm volatile (__ex(ASM_VMX_VMPTRLD_RAX) "; setna %0"
 			: "=qm"(error) : "a"(&phys_addr), "m"(phys_addr)
 			: "cc", "memory");
@@ -1652,18 +1846,24 @@ static __always_inline unsigned long __vmcs_readl(unsigned long field)
 static __always_inline u16 vmcs_read16(unsigned long field)
 {
 	vmcs_check16(field);
+	if (static_branch_unlikely(&enable_evmcs))
+		return evmcs_read16(field);
 	return __vmcs_readl(field);
 }
 
 static __always_inline u32 vmcs_read32(unsigned long field)
 {
 	vmcs_check32(field);
+	if (static_branch_unlikely(&enable_evmcs))
+		return evmcs_read32(field);
 	return __vmcs_readl(field);
 }
 
 static __always_inline u64 vmcs_read64(unsigned long field)
 {
 	vmcs_check64(field);
+	if (static_branch_unlikely(&enable_evmcs))
+		return evmcs_read64(field);
 #ifdef CONFIG_X86_64
 	return __vmcs_readl(field);
 #else
@@ -1674,6 +1874,8 @@ static __always_inline u64 vmcs_read64(unsigned long field)
 static __always_inline unsigned long vmcs_readl(unsigned long field)
 {
 	vmcs_checkl(field);
+	if (static_branch_unlikely(&enable_evmcs))
+		return evmcs_read64(field);
 	return __vmcs_readl(field);
 }
 
@@ -1697,18 +1899,27 @@ static __always_inline void __vmcs_writel(unsigned long field, unsigned long val
 static __always_inline void vmcs_write16(unsigned long field, u16 value)
 {
 	vmcs_check16(field);
+	if (static_branch_unlikely(&enable_evmcs))
+		return evmcs_write16(field, value);
+
 	__vmcs_writel(field, value);
 }
 
 static __always_inline void vmcs_write32(unsigned long field, u32 value)
 {
 	vmcs_check32(field);
+	if (static_branch_unlikely(&enable_evmcs))
+		return evmcs_write32(field, value);
+
 	__vmcs_writel(field, value);
 }
 
 static __always_inline void vmcs_write64(unsigned long field, u64 value)
 {
 	vmcs_check64(field);
+	if (static_branch_unlikely(&enable_evmcs))
+		return evmcs_write64(field, value);
+
 	__vmcs_writel(field, value);
 #ifndef CONFIG_X86_64
 	asm volatile ("");
@@ -1719,6 +1930,9 @@ static __always_inline void vmcs_write64(unsigned long field, u64 value)
 static __always_inline void vmcs_writel(unsigned long field, unsigned long value)
 {
 	vmcs_checkl(field);
+	if (static_branch_unlikely(&enable_evmcs))
+		return evmcs_write64(field, value);
+
 	__vmcs_writel(field, value);
 }
 
@@ -1726,6 +1940,9 @@ static __always_inline void vmcs_clear_bits(unsigned long field, u32 mask)
 {
         BUILD_BUG_ON_MSG(__builtin_constant_p(field) && ((field) & 0x6000) == 0x2000,
 			 "vmcs_clear_bits does not support 64-bit fields");
+	if (static_branch_unlikely(&enable_evmcs))
+		return evmcs_write32(field, evmcs_read32(field) & ~mask);
+
 	__vmcs_writel(field, __vmcs_readl(field) & ~mask);
 }
 
@@ -1733,6 +1950,9 @@ static __always_inline void vmcs_set_bits(unsigned long field, u32 mask)
 {
         BUILD_BUG_ON_MSG(__builtin_constant_p(field) && ((field) & 0x6000) == 0x2000,
 			 "vmcs_set_bits does not support 64-bit fields");
+	if (static_branch_unlikely(&enable_evmcs))
+		return evmcs_write32(field, evmcs_read32(field) | mask);
+
 	__vmcs_writel(field, __vmcs_readl(field) | mask);
 }
 
@@ -1864,6 +2084,14 @@ static void update_exception_bitmap(struct kvm_vcpu *vcpu)
 
 	eb = (1u << PF_VECTOR) | (1u << UD_VECTOR) | (1u << MC_VECTOR) |
 	     (1u << DB_VECTOR) | (1u << AC_VECTOR);
+	/*
+	 * Guest access to VMware backdoor ports could legitimately
+	 * trigger #GP because of TSS I/O permission bitmap.
+	 * We intercept those #GP and allow access to them anyway
+	 * as VMware does.
+	 */
+	if (enable_vmware_backdoor)
+		eb |= (1u << GP_VECTOR);
 	if ((vcpu->guest_debug &
 	     (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP)) ==
 	    (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP))
@@ -2129,6 +2357,9 @@ static unsigned long segment_base(u16 selector)
 static void vmx_save_host_state(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
+#ifdef CONFIG_X86_64
+	int cpu = raw_smp_processor_id();
+#endif
 	int i;
 
 	if (vmx->host_state.loaded)
@@ -2141,7 +2372,15 @@ static void vmx_save_host_state(struct kvm_vcpu *vcpu)
 	 */
 	vmx->host_state.ldt_sel = kvm_read_ldt();
 	vmx->host_state.gs_ldt_reload_needed = vmx->host_state.ldt_sel;
+
+#ifdef CONFIG_X86_64
+	save_fsgs_for_kvm();
+	vmx->host_state.fs_sel = current->thread.fsindex;
+	vmx->host_state.gs_sel = current->thread.gsindex;
+#else
 	savesegment(fs, vmx->host_state.fs_sel);
+	savesegment(gs, vmx->host_state.gs_sel);
+#endif
 	if (!(vmx->host_state.fs_sel & 7)) {
 		vmcs_write16(HOST_FS_SELECTOR, vmx->host_state.fs_sel);
 		vmx->host_state.fs_reload_needed = 0;
@@ -2149,7 +2388,6 @@ static void vmx_save_host_state(struct kvm_vcpu *vcpu)
 		vmcs_write16(HOST_FS_SELECTOR, 0);
 		vmx->host_state.fs_reload_needed = 1;
 	}
-	savesegment(gs, vmx->host_state.gs_sel);
 	if (!(vmx->host_state.gs_sel & 7))
 		vmcs_write16(HOST_GS_SELECTOR, vmx->host_state.gs_sel);
 	else {
@@ -2160,20 +2398,16 @@ static void vmx_save_host_state(struct kvm_vcpu *vcpu)
 #ifdef CONFIG_X86_64
 	savesegment(ds, vmx->host_state.ds_sel);
 	savesegment(es, vmx->host_state.es_sel);
-#endif
 
-#ifdef CONFIG_X86_64
-	vmcs_writel(HOST_FS_BASE, read_msr(MSR_FS_BASE));
-	vmcs_writel(HOST_GS_BASE, read_msr(MSR_GS_BASE));
-#else
-	vmcs_writel(HOST_FS_BASE, segment_base(vmx->host_state.fs_sel));
-	vmcs_writel(HOST_GS_BASE, segment_base(vmx->host_state.gs_sel));
-#endif
+	vmcs_writel(HOST_FS_BASE, current->thread.fsbase);
+	vmcs_writel(HOST_GS_BASE, cpu_kernelmode_gs_base(cpu));
 
-#ifdef CONFIG_X86_64
-	rdmsrl(MSR_KERNEL_GS_BASE, vmx->msr_host_kernel_gs_base);
+	vmx->msr_host_kernel_gs_base = current->thread.gsbase;
 	if (is_long_mode(&vmx->vcpu))
 		wrmsrl(MSR_KERNEL_GS_BASE, vmx->msr_guest_kernel_gs_base);
+#else
+	vmcs_writel(HOST_FS_BASE, segment_base(vmx->host_state.fs_sel));
+	vmcs_writel(HOST_GS_BASE, segment_base(vmx->host_state.gs_sel));
 #endif
 	if (boot_cpu_has(X86_FEATURE_MPX))
 		rdmsrl(MSR_IA32_BNDCFGS, vmx->host_state.msr_host_bndcfgs);
@@ -2532,6 +2766,19 @@ static int nested_vmx_check_exception(struct kvm_vcpu *vcpu, unsigned long *exit
 	return 0;
 }
 
+static void vmx_clear_hlt(struct kvm_vcpu *vcpu)
+{
+	/*
+	 * Ensure that we clear the HLT state in the VMCS.  We don't need to
+	 * explicitly skip the instruction because if the HLT state is set,
+	 * then the instruction is already executing and RIP has already been
+	 * advanced.
+	 */
+	if (kvm_hlt_in_guest(vcpu->kvm) &&
+			vmcs_read32(GUEST_ACTIVITY_STATE) == GUEST_ACTIVITY_HLT)
+		vmcs_write32(GUEST_ACTIVITY_STATE, GUEST_ACTIVITY_ACTIVE);
+}
+
 static void vmx_queue_exception(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
@@ -2554,6 +2801,8 @@ static void vmx_queue_exception(struct kvm_vcpu *vcpu)
 		return;
 	}
 
+	WARN_ON_ONCE(vmx->emulation_required);
+
 	if (kvm_exception_is_soft(nr)) {
 		vmcs_write32(VM_ENTRY_INSTRUCTION_LEN,
 			     vmx->vcpu.arch.event_exit_inst_len);
@@ -2562,6 +2811,8 @@ static void vmx_queue_exception(struct kvm_vcpu *vcpu)
 		intr_info |= INTR_TYPE_HARD_EXCEPTION;
 
 	vmcs_write32(VM_ENTRY_INTR_INFO_FIELD, intr_info);
+
+	vmx_clear_hlt(vcpu);
 }
 
 static bool vmx_rdtscp_supported(void)
@@ -2629,18 +2880,15 @@ static void setup_msrs(struct vcpu_vmx *vmx)
 		vmx_update_msr_bitmap(&vmx->vcpu);
 }
 
-/*
- * reads and returns guest's timestamp counter "register"
- * guest_tsc = (host_tsc * tsc multiplier) >> 48 + tsc_offset
- * -- Intel TSC Scaling for Virtualization White Paper, sec 1.3
- */
-static u64 guest_read_tsc(struct kvm_vcpu *vcpu)
+static u64 vmx_read_l1_tsc_offset(struct kvm_vcpu *vcpu)
 {
-	u64 host_tsc, tsc_offset;
+	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
 
-	host_tsc = rdtsc();
-	tsc_offset = vmcs_read64(TSC_OFFSET);
-	return kvm_scale_tsc(vcpu, host_tsc) + tsc_offset;
+	if (is_guest_mode(vcpu) &&
+	    (vmcs12->cpu_based_vm_exec_control & CPU_BASED_USE_TSC_OFFSETING))
+		return vcpu->arch.tsc_offset - vmcs12->tsc_offset;
+
+	return vcpu->arch.tsc_offset;
 }
 
 /*
@@ -2689,8 +2937,13 @@ static inline bool nested_vmx_allowed(struct kvm_vcpu *vcpu)
  * bit in the high half is on if the corresponding bit in the control field
  * may be on. See also vmx_control_verify().
  */
-static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
+static void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, bool apicv)
 {
+	if (!nested) {
+		memset(msrs, 0, sizeof(*msrs));
+		return;
+	}
+
 	/*
 	 * Note that as a general rule, the high half of the MSRs (bits in
 	 * the control fields which may be 1) should be initialized by the
@@ -2708,70 +2961,68 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
 
 	/* pin-based controls */
 	rdmsr(MSR_IA32_VMX_PINBASED_CTLS,
-		vmx->nested.nested_vmx_pinbased_ctls_low,
-		vmx->nested.nested_vmx_pinbased_ctls_high);
-	vmx->nested.nested_vmx_pinbased_ctls_low |=
+		msrs->pinbased_ctls_low,
+		msrs->pinbased_ctls_high);
+	msrs->pinbased_ctls_low |=
 		PIN_BASED_ALWAYSON_WITHOUT_TRUE_MSR;
-	vmx->nested.nested_vmx_pinbased_ctls_high &=
+	msrs->pinbased_ctls_high &=
 		PIN_BASED_EXT_INTR_MASK |
 		PIN_BASED_NMI_EXITING |
-		PIN_BASED_VIRTUAL_NMIS;
-	vmx->nested.nested_vmx_pinbased_ctls_high |=
+		PIN_BASED_VIRTUAL_NMIS |
+		(apicv ? PIN_BASED_POSTED_INTR : 0);
+	msrs->pinbased_ctls_high |=
 		PIN_BASED_ALWAYSON_WITHOUT_TRUE_MSR |
 		PIN_BASED_VMX_PREEMPTION_TIMER;
-	if (kvm_vcpu_apicv_active(&vmx->vcpu))
-		vmx->nested.nested_vmx_pinbased_ctls_high |=
-			PIN_BASED_POSTED_INTR;
 
 	/* exit controls */
 	rdmsr(MSR_IA32_VMX_EXIT_CTLS,
-		vmx->nested.nested_vmx_exit_ctls_low,
-		vmx->nested.nested_vmx_exit_ctls_high);
-	vmx->nested.nested_vmx_exit_ctls_low =
+		msrs->exit_ctls_low,
+		msrs->exit_ctls_high);
+	msrs->exit_ctls_low =
 		VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR;
 
-	vmx->nested.nested_vmx_exit_ctls_high &=
+	msrs->exit_ctls_high &=
 #ifdef CONFIG_X86_64
 		VM_EXIT_HOST_ADDR_SPACE_SIZE |
 #endif
 		VM_EXIT_LOAD_IA32_PAT | VM_EXIT_SAVE_IA32_PAT;
-	vmx->nested.nested_vmx_exit_ctls_high |=
+	msrs->exit_ctls_high |=
 		VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR |
 		VM_EXIT_LOAD_IA32_EFER | VM_EXIT_SAVE_IA32_EFER |
 		VM_EXIT_SAVE_VMX_PREEMPTION_TIMER | VM_EXIT_ACK_INTR_ON_EXIT;
 
 	if (kvm_mpx_supported())
-		vmx->nested.nested_vmx_exit_ctls_high |= VM_EXIT_CLEAR_BNDCFGS;
+		msrs->exit_ctls_high |= VM_EXIT_CLEAR_BNDCFGS;
 
 	/* We support free control of debug control saving. */
-	vmx->nested.nested_vmx_exit_ctls_low &= ~VM_EXIT_SAVE_DEBUG_CONTROLS;
+	msrs->exit_ctls_low &= ~VM_EXIT_SAVE_DEBUG_CONTROLS;
 
 	/* entry controls */
 	rdmsr(MSR_IA32_VMX_ENTRY_CTLS,
-		vmx->nested.nested_vmx_entry_ctls_low,
-		vmx->nested.nested_vmx_entry_ctls_high);
-	vmx->nested.nested_vmx_entry_ctls_low =
+		msrs->entry_ctls_low,
+		msrs->entry_ctls_high);
+	msrs->entry_ctls_low =
 		VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR;
-	vmx->nested.nested_vmx_entry_ctls_high &=
+	msrs->entry_ctls_high &=
 #ifdef CONFIG_X86_64
 		VM_ENTRY_IA32E_MODE |
 #endif
 		VM_ENTRY_LOAD_IA32_PAT;
-	vmx->nested.nested_vmx_entry_ctls_high |=
+	msrs->entry_ctls_high |=
 		(VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR | VM_ENTRY_LOAD_IA32_EFER);
 	if (kvm_mpx_supported())
-		vmx->nested.nested_vmx_entry_ctls_high |= VM_ENTRY_LOAD_BNDCFGS;
+		msrs->entry_ctls_high |= VM_ENTRY_LOAD_BNDCFGS;
 
 	/* We support free control of debug control loading. */
-	vmx->nested.nested_vmx_entry_ctls_low &= ~VM_ENTRY_LOAD_DEBUG_CONTROLS;
+	msrs->entry_ctls_low &= ~VM_ENTRY_LOAD_DEBUG_CONTROLS;
 
 	/* cpu-based controls */
 	rdmsr(MSR_IA32_VMX_PROCBASED_CTLS,
-		vmx->nested.nested_vmx_procbased_ctls_low,
-		vmx->nested.nested_vmx_procbased_ctls_high);
-	vmx->nested.nested_vmx_procbased_ctls_low =
+		msrs->procbased_ctls_low,
+		msrs->procbased_ctls_high);
+	msrs->procbased_ctls_low =
 		CPU_BASED_ALWAYSON_WITHOUT_TRUE_MSR;
-	vmx->nested.nested_vmx_procbased_ctls_high &=
+	msrs->procbased_ctls_high &=
 		CPU_BASED_VIRTUAL_INTR_PENDING |
 		CPU_BASED_VIRTUAL_NMI_PENDING | CPU_BASED_USE_TSC_OFFSETING |
 		CPU_BASED_HLT_EXITING | CPU_BASED_INVLPG_EXITING |
@@ -2791,12 +3042,12 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
 	 * can use it to avoid exits to L1 - even when L0 runs L2
 	 * without MSR bitmaps.
 	 */
-	vmx->nested.nested_vmx_procbased_ctls_high |=
+	msrs->procbased_ctls_high |=
 		CPU_BASED_ALWAYSON_WITHOUT_TRUE_MSR |
 		CPU_BASED_USE_MSR_BITMAPS;
 
 	/* We support free control of CR3 access interception. */
-	vmx->nested.nested_vmx_procbased_ctls_low &=
+	msrs->procbased_ctls_low &=
 		~(CPU_BASED_CR3_LOAD_EXITING | CPU_BASED_CR3_STORE_EXITING);
 
 	/*
@@ -2804,10 +3055,10 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
 	 * depend on CPUID bits, they are added later by vmx_cpuid_update.
 	 */
 	rdmsr(MSR_IA32_VMX_PROCBASED_CTLS2,
-		vmx->nested.nested_vmx_secondary_ctls_low,
-		vmx->nested.nested_vmx_secondary_ctls_high);
-	vmx->nested.nested_vmx_secondary_ctls_low = 0;
-	vmx->nested.nested_vmx_secondary_ctls_high &=
+		msrs->secondary_ctls_low,
+		msrs->secondary_ctls_high);
+	msrs->secondary_ctls_low = 0;
+	msrs->secondary_ctls_high &=
 		SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
 		SECONDARY_EXEC_DESC |
 		SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE |
@@ -2817,33 +3068,33 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
 
 	if (enable_ept) {
 		/* nested EPT: emulate EPT also to L1 */
-		vmx->nested.nested_vmx_secondary_ctls_high |=
+		msrs->secondary_ctls_high |=
 			SECONDARY_EXEC_ENABLE_EPT;
-		vmx->nested.nested_vmx_ept_caps = VMX_EPT_PAGE_WALK_4_BIT |
+		msrs->ept_caps = VMX_EPT_PAGE_WALK_4_BIT |
 			 VMX_EPTP_WB_BIT | VMX_EPT_INVEPT_BIT;
 		if (cpu_has_vmx_ept_execute_only())
-			vmx->nested.nested_vmx_ept_caps |=
+			msrs->ept_caps |=
 				VMX_EPT_EXECUTE_ONLY_BIT;
-		vmx->nested.nested_vmx_ept_caps &= vmx_capability.ept;
-		vmx->nested.nested_vmx_ept_caps |= VMX_EPT_EXTENT_GLOBAL_BIT |
+		msrs->ept_caps &= vmx_capability.ept;
+		msrs->ept_caps |= VMX_EPT_EXTENT_GLOBAL_BIT |
 			VMX_EPT_EXTENT_CONTEXT_BIT | VMX_EPT_2MB_PAGE_BIT |
 			VMX_EPT_1GB_PAGE_BIT;
 		if (enable_ept_ad_bits) {
-			vmx->nested.nested_vmx_secondary_ctls_high |=
+			msrs->secondary_ctls_high |=
 				SECONDARY_EXEC_ENABLE_PML;
-			vmx->nested.nested_vmx_ept_caps |= VMX_EPT_AD_BIT;
+			msrs->ept_caps |= VMX_EPT_AD_BIT;
 		}
 	}
 
 	if (cpu_has_vmx_vmfunc()) {
-		vmx->nested.nested_vmx_secondary_ctls_high |=
+		msrs->secondary_ctls_high |=
 			SECONDARY_EXEC_ENABLE_VMFUNC;
 		/*
 		 * Advertise EPTP switching unconditionally
 		 * since we emulate it
 		 */
 		if (enable_ept)
-			vmx->nested.nested_vmx_vmfunc_controls =
+			msrs->vmfunc_controls =
 				VMX_VMFUNC_EPTP_SWITCHING;
 	}
 
@@ -2854,25 +3105,25 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
 	 * not failing the single-context invvpid, and it is worse.
 	 */
 	if (enable_vpid) {
-		vmx->nested.nested_vmx_secondary_ctls_high |=
+		msrs->secondary_ctls_high |=
 			SECONDARY_EXEC_ENABLE_VPID;
-		vmx->nested.nested_vmx_vpid_caps = VMX_VPID_INVVPID_BIT |
+		msrs->vpid_caps = VMX_VPID_INVVPID_BIT |
 			VMX_VPID_EXTENT_SUPPORTED_MASK;
 	}
 
 	if (enable_unrestricted_guest)
-		vmx->nested.nested_vmx_secondary_ctls_high |=
+		msrs->secondary_ctls_high |=
 			SECONDARY_EXEC_UNRESTRICTED_GUEST;
 
 	/* miscellaneous data */
 	rdmsr(MSR_IA32_VMX_MISC,
-		vmx->nested.nested_vmx_misc_low,
-		vmx->nested.nested_vmx_misc_high);
-	vmx->nested.nested_vmx_misc_low &= VMX_MISC_SAVE_EFER_LMA;
-	vmx->nested.nested_vmx_misc_low |=
+		msrs->misc_low,
+		msrs->misc_high);
+	msrs->misc_low &= VMX_MISC_SAVE_EFER_LMA;
+	msrs->misc_low |=
 		VMX_MISC_EMULATED_PREEMPTION_TIMER_RATE |
 		VMX_MISC_ACTIVITY_HLT;
-	vmx->nested.nested_vmx_misc_high = 0;
+	msrs->misc_high = 0;
 
 	/*
 	 * This MSR reports some information about VMX support. We
@@ -2880,14 +3131,14 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
 	 * guest, and the VMCS structure we give it - not about the
 	 * VMX support of the underlying hardware.
 	 */
-	vmx->nested.nested_vmx_basic =
+	msrs->basic =
 		VMCS12_REVISION |
 		VMX_BASIC_TRUE_CTLS |
 		((u64)VMCS12_SIZE << VMX_BASIC_VMCS_SIZE_SHIFT) |
 		(VMX_BASIC_MEM_TYPE_WB << VMX_BASIC_MEM_TYPE_SHIFT);
 
 	if (cpu_has_vmx_basic_inout())
-		vmx->nested.nested_vmx_basic |= VMX_BASIC_INOUT;
+		msrs->basic |= VMX_BASIC_INOUT;
 
 	/*
 	 * These MSRs specify bits which the guest must keep fixed on
@@ -2896,15 +3147,15 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
 	 */
 #define VMXON_CR0_ALWAYSON     (X86_CR0_PE | X86_CR0_PG | X86_CR0_NE)
 #define VMXON_CR4_ALWAYSON     X86_CR4_VMXE
-	vmx->nested.nested_vmx_cr0_fixed0 = VMXON_CR0_ALWAYSON;
-	vmx->nested.nested_vmx_cr4_fixed0 = VMXON_CR4_ALWAYSON;
+	msrs->cr0_fixed0 = VMXON_CR0_ALWAYSON;
+	msrs->cr4_fixed0 = VMXON_CR4_ALWAYSON;
 
 	/* These MSRs specify bits which the guest must keep fixed off. */
-	rdmsrl(MSR_IA32_VMX_CR0_FIXED1, vmx->nested.nested_vmx_cr0_fixed1);
-	rdmsrl(MSR_IA32_VMX_CR4_FIXED1, vmx->nested.nested_vmx_cr4_fixed1);
+	rdmsrl(MSR_IA32_VMX_CR0_FIXED1, msrs->cr0_fixed1);
+	rdmsrl(MSR_IA32_VMX_CR4_FIXED1, msrs->cr4_fixed1);
 
 	/* highest index: VMX_PREEMPTION_TIMER_VALUE */
-	vmx->nested.nested_vmx_vmcs_enum = VMCS12_MAX_FIELD_INDEX << 1;
+	msrs->vmcs_enum = VMCS12_MAX_FIELD_INDEX << 1;
 }
 
 /*
@@ -2941,7 +3192,7 @@ static int vmx_restore_vmx_basic(struct vcpu_vmx *vmx, u64 data)
 		BIT_ULL(49) | BIT_ULL(54) | BIT_ULL(55) |
 		/* reserved */
 		BIT_ULL(31) | GENMASK_ULL(47, 45) | GENMASK_ULL(63, 56);
-	u64 vmx_basic = vmx->nested.nested_vmx_basic;
+	u64 vmx_basic = vmx->nested.msrs.basic;
 
 	if (!is_bitwise_subset(vmx_basic, data, feature_and_reserved))
 		return -EINVAL;
@@ -2960,7 +3211,7 @@ static int vmx_restore_vmx_basic(struct vcpu_vmx *vmx, u64 data)
 	if (vmx_basic_vmcs_size(vmx_basic) > vmx_basic_vmcs_size(data))
 		return -EINVAL;
 
-	vmx->nested.nested_vmx_basic = data;
+	vmx->nested.msrs.basic = data;
 	return 0;
 }
 
@@ -2972,24 +3223,24 @@ vmx_restore_control_msr(struct vcpu_vmx *vmx, u32 msr_index, u64 data)
 
 	switch (msr_index) {
 	case MSR_IA32_VMX_TRUE_PINBASED_CTLS:
-		lowp = &vmx->nested.nested_vmx_pinbased_ctls_low;
-		highp = &vmx->nested.nested_vmx_pinbased_ctls_high;
+		lowp = &vmx->nested.msrs.pinbased_ctls_low;
+		highp = &vmx->nested.msrs.pinbased_ctls_high;
 		break;
 	case MSR_IA32_VMX_TRUE_PROCBASED_CTLS:
-		lowp = &vmx->nested.nested_vmx_procbased_ctls_low;
-		highp = &vmx->nested.nested_vmx_procbased_ctls_high;
+		lowp = &vmx->nested.msrs.procbased_ctls_low;
+		highp = &vmx->nested.msrs.procbased_ctls_high;
 		break;
 	case MSR_IA32_VMX_TRUE_EXIT_CTLS:
-		lowp = &vmx->nested.nested_vmx_exit_ctls_low;
-		highp = &vmx->nested.nested_vmx_exit_ctls_high;
+		lowp = &vmx->nested.msrs.exit_ctls_low;
+		highp = &vmx->nested.msrs.exit_ctls_high;
 		break;
 	case MSR_IA32_VMX_TRUE_ENTRY_CTLS:
-		lowp = &vmx->nested.nested_vmx_entry_ctls_low;
-		highp = &vmx->nested.nested_vmx_entry_ctls_high;
+		lowp = &vmx->nested.msrs.entry_ctls_low;
+		highp = &vmx->nested.msrs.entry_ctls_high;
 		break;
 	case MSR_IA32_VMX_PROCBASED_CTLS2:
-		lowp = &vmx->nested.nested_vmx_secondary_ctls_low;
-		highp = &vmx->nested.nested_vmx_secondary_ctls_high;
+		lowp = &vmx->nested.msrs.secondary_ctls_low;
+		highp = &vmx->nested.msrs.secondary_ctls_high;
 		break;
 	default:
 		BUG();
@@ -3020,13 +3271,13 @@ static int vmx_restore_vmx_misc(struct vcpu_vmx *vmx, u64 data)
 		GENMASK_ULL(13, 9) | BIT_ULL(31);
 	u64 vmx_misc;
 
-	vmx_misc = vmx_control_msr(vmx->nested.nested_vmx_misc_low,
-				   vmx->nested.nested_vmx_misc_high);
+	vmx_misc = vmx_control_msr(vmx->nested.msrs.misc_low,
+				   vmx->nested.msrs.misc_high);
 
 	if (!is_bitwise_subset(vmx_misc, data, feature_and_reserved_bits))
 		return -EINVAL;
 
-	if ((vmx->nested.nested_vmx_pinbased_ctls_high &
+	if ((vmx->nested.msrs.pinbased_ctls_high &
 	     PIN_BASED_VMX_PREEMPTION_TIMER) &&
 	    vmx_misc_preemption_timer_rate(data) !=
 	    vmx_misc_preemption_timer_rate(vmx_misc))
@@ -3041,8 +3292,8 @@ static int vmx_restore_vmx_misc(struct vcpu_vmx *vmx, u64 data)
 	if (vmx_misc_mseg_revid(data) != vmx_misc_mseg_revid(vmx_misc))
 		return -EINVAL;
 
-	vmx->nested.nested_vmx_misc_low = data;
-	vmx->nested.nested_vmx_misc_high = data >> 32;
+	vmx->nested.msrs.misc_low = data;
+	vmx->nested.msrs.misc_high = data >> 32;
 	return 0;
 }
 
@@ -3050,15 +3301,15 @@ static int vmx_restore_vmx_ept_vpid_cap(struct vcpu_vmx *vmx, u64 data)
 {
 	u64 vmx_ept_vpid_cap;
 
-	vmx_ept_vpid_cap = vmx_control_msr(vmx->nested.nested_vmx_ept_caps,
-					   vmx->nested.nested_vmx_vpid_caps);
+	vmx_ept_vpid_cap = vmx_control_msr(vmx->nested.msrs.ept_caps,
+					   vmx->nested.msrs.vpid_caps);
 
 	/* Every bit is either reserved or a feature bit. */
 	if (!is_bitwise_subset(vmx_ept_vpid_cap, data, -1ULL))
 		return -EINVAL;
 
-	vmx->nested.nested_vmx_ept_caps = data;
-	vmx->nested.nested_vmx_vpid_caps = data >> 32;
+	vmx->nested.msrs.ept_caps = data;
+	vmx->nested.msrs.vpid_caps = data >> 32;
 	return 0;
 }
 
@@ -3068,10 +3319,10 @@ static int vmx_restore_fixed0_msr(struct vcpu_vmx *vmx, u32 msr_index, u64 data)
 
 	switch (msr_index) {
 	case MSR_IA32_VMX_CR0_FIXED0:
-		msr = &vmx->nested.nested_vmx_cr0_fixed0;
+		msr = &vmx->nested.msrs.cr0_fixed0;
 		break;
 	case MSR_IA32_VMX_CR4_FIXED0:
-		msr = &vmx->nested.nested_vmx_cr4_fixed0;
+		msr = &vmx->nested.msrs.cr4_fixed0;
 		break;
 	default:
 		BUG();
@@ -3135,7 +3386,7 @@ static int vmx_set_vmx_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
 	case MSR_IA32_VMX_EPT_VPID_CAP:
 		return vmx_restore_vmx_ept_vpid_cap(vmx, data);
 	case MSR_IA32_VMX_VMCS_ENUM:
-		vmx->nested.nested_vmx_vmcs_enum = data;
+		vmx->nested.msrs.vmcs_enum = data;
 		return 0;
 	default:
 		/*
@@ -3146,77 +3397,75 @@ static int vmx_set_vmx_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
 }
 
 /* Returns 0 on success, non-0 otherwise. */
-static int vmx_get_vmx_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata)
+static int vmx_get_vmx_msr(struct nested_vmx_msrs *msrs, u32 msr_index, u64 *pdata)
 {
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-
 	switch (msr_index) {
 	case MSR_IA32_VMX_BASIC:
-		*pdata = vmx->nested.nested_vmx_basic;
+		*pdata = msrs->basic;
 		break;
 	case MSR_IA32_VMX_TRUE_PINBASED_CTLS:
 	case MSR_IA32_VMX_PINBASED_CTLS:
 		*pdata = vmx_control_msr(
-			vmx->nested.nested_vmx_pinbased_ctls_low,
-			vmx->nested.nested_vmx_pinbased_ctls_high);
+			msrs->pinbased_ctls_low,
+			msrs->pinbased_ctls_high);
 		if (msr_index == MSR_IA32_VMX_PINBASED_CTLS)
 			*pdata |= PIN_BASED_ALWAYSON_WITHOUT_TRUE_MSR;
 		break;
 	case MSR_IA32_VMX_TRUE_PROCBASED_CTLS:
 	case MSR_IA32_VMX_PROCBASED_CTLS:
 		*pdata = vmx_control_msr(
-			vmx->nested.nested_vmx_procbased_ctls_low,
-			vmx->nested.nested_vmx_procbased_ctls_high);
+			msrs->procbased_ctls_low,
+			msrs->procbased_ctls_high);
 		if (msr_index == MSR_IA32_VMX_PROCBASED_CTLS)
 			*pdata |= CPU_BASED_ALWAYSON_WITHOUT_TRUE_MSR;
 		break;
 	case MSR_IA32_VMX_TRUE_EXIT_CTLS:
 	case MSR_IA32_VMX_EXIT_CTLS:
 		*pdata = vmx_control_msr(
-			vmx->nested.nested_vmx_exit_ctls_low,
-			vmx->nested.nested_vmx_exit_ctls_high);
+			msrs->exit_ctls_low,
+			msrs->exit_ctls_high);
 		if (msr_index == MSR_IA32_VMX_EXIT_CTLS)
 			*pdata |= VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR;
 		break;
 	case MSR_IA32_VMX_TRUE_ENTRY_CTLS:
 	case MSR_IA32_VMX_ENTRY_CTLS:
 		*pdata = vmx_control_msr(
-			vmx->nested.nested_vmx_entry_ctls_low,
-			vmx->nested.nested_vmx_entry_ctls_high);
+			msrs->entry_ctls_low,
+			msrs->entry_ctls_high);
 		if (msr_index == MSR_IA32_VMX_ENTRY_CTLS)
 			*pdata |= VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR;
 		break;
 	case MSR_IA32_VMX_MISC:
 		*pdata = vmx_control_msr(
-			vmx->nested.nested_vmx_misc_low,
-			vmx->nested.nested_vmx_misc_high);
+			msrs->misc_low,
+			msrs->misc_high);
 		break;
 	case MSR_IA32_VMX_CR0_FIXED0:
-		*pdata = vmx->nested.nested_vmx_cr0_fixed0;
+		*pdata = msrs->cr0_fixed0;
 		break;
 	case MSR_IA32_VMX_CR0_FIXED1:
-		*pdata = vmx->nested.nested_vmx_cr0_fixed1;
+		*pdata = msrs->cr0_fixed1;
 		break;
 	case MSR_IA32_VMX_CR4_FIXED0:
-		*pdata = vmx->nested.nested_vmx_cr4_fixed0;
+		*pdata = msrs->cr4_fixed0;
 		break;
 	case MSR_IA32_VMX_CR4_FIXED1:
-		*pdata = vmx->nested.nested_vmx_cr4_fixed1;
+		*pdata = msrs->cr4_fixed1;
 		break;
 	case MSR_IA32_VMX_VMCS_ENUM:
-		*pdata = vmx->nested.nested_vmx_vmcs_enum;
+		*pdata = msrs->vmcs_enum;
 		break;
 	case MSR_IA32_VMX_PROCBASED_CTLS2:
 		*pdata = vmx_control_msr(
-			vmx->nested.nested_vmx_secondary_ctls_low,
-			vmx->nested.nested_vmx_secondary_ctls_high);
+			msrs->secondary_ctls_low,
+			msrs->secondary_ctls_high);
 		break;
 	case MSR_IA32_VMX_EPT_VPID_CAP:
-		*pdata = vmx->nested.nested_vmx_ept_caps |
-			((u64)vmx->nested.nested_vmx_vpid_caps << 32);
+		*pdata = msrs->ept_caps |
+			((u64)msrs->vpid_caps << 32);
 		break;
 	case MSR_IA32_VMX_VMFUNC:
-		*pdata = vmx->nested.nested_vmx_vmfunc_controls;
+		*pdata = msrs->vmfunc_controls;
 		break;
 	default:
 		return 1;
@@ -3235,7 +3484,16 @@ static inline bool vmx_feature_control_msr_valid(struct kvm_vcpu *vcpu,
 
 static int vmx_get_msr_feature(struct kvm_msr_entry *msr)
 {
-	return 1;
+	switch (msr->index) {
+	case MSR_IA32_VMX_BASIC ... MSR_IA32_VMX_VMFUNC:
+		if (!nested)
+			return 1;
+		return vmx_get_vmx_msr(&vmcs_config.nested, msr->index, &msr->data);
+	default:
+		return 1;
+	}
+
+	return 0;
 }
 
 /*
@@ -3263,9 +3521,6 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 #endif
 	case MSR_EFER:
 		return kvm_get_msr_common(vcpu, msr_info);
-	case MSR_IA32_TSC:
-		msr_info->data = guest_read_tsc(vcpu);
-		break;
 	case MSR_IA32_SPEC_CTRL:
 		if (!msr_info->host_initiated &&
 		    !guest_cpuid_has(vcpu, X86_FEATURE_IBRS) &&
@@ -3309,7 +3564,8 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 	case MSR_IA32_VMX_BASIC ... MSR_IA32_VMX_VMFUNC:
 		if (!nested_vmx_allowed(vcpu))
 			return 1;
-		return vmx_get_vmx_msr(vcpu, msr_info->index, &msr_info->data);
+		return vmx_get_vmx_msr(&vmx->nested.msrs, msr_info->index,
+				       &msr_info->data);
 	case MSR_IA32_XSS:
 		if (!vmx_xsaves_supported())
 			return 1;
@@ -3384,9 +3640,6 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 			return 1;
 		vmcs_write64(GUEST_BNDCFGS, data);
 		break;
-	case MSR_IA32_TSC:
-		kvm_write_tsc(vcpu, msr_info);
-		break;
 	case MSR_IA32_SPEC_CTRL:
 		if (!msr_info->host_initiated &&
 		    !guest_cpuid_has(vcpu, X86_FEATURE_IBRS) &&
@@ -3602,6 +3855,14 @@ static int hardware_enable(void)
 	if (cr4_read_shadow() & X86_CR4_VMXE)
 		return -EBUSY;
 
+	/*
+	 * This can happen if we hot-added a CPU but failed to allocate
+	 * VP assist page for it.
+	 */
+	if (static_branch_unlikely(&enable_evmcs) &&
+	    !hv_get_vp_assist_page(cpu))
+		return -EFAULT;
+
 	INIT_LIST_HEAD(&per_cpu(loaded_vmcss_on_cpu, cpu));
 	INIT_LIST_HEAD(&per_cpu(blocked_vcpu_on_cpu, cpu));
 	spin_lock_init(&per_cpu(blocked_vcpu_on_cpu_lock, cpu));
@@ -3700,6 +3961,7 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
 	u32 _vmexit_control = 0;
 	u32 _vmentry_control = 0;
 
+	memset(vmcs_conf, 0, sizeof(*vmcs_conf));
 	min = CPU_BASED_HLT_EXITING |
 #ifdef CONFIG_X86_64
 	      CPU_BASED_CR8_LOAD_EXITING |
@@ -3710,13 +3972,11 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
 	      CPU_BASED_UNCOND_IO_EXITING |
 	      CPU_BASED_MOV_DR_EXITING |
 	      CPU_BASED_USE_TSC_OFFSETING |
+	      CPU_BASED_MWAIT_EXITING |
+	      CPU_BASED_MONITOR_EXITING |
 	      CPU_BASED_INVLPG_EXITING |
 	      CPU_BASED_RDPMC_EXITING;
 
-	if (!kvm_mwait_in_guest())
-		min |= CPU_BASED_MWAIT_EXITING |
-			CPU_BASED_MONITOR_EXITING;
-
 	opt = CPU_BASED_TPR_SHADOW |
 	      CPU_BASED_USE_MSR_BITMAPS |
 	      CPU_BASED_ACTIVATE_SECONDARY_CONTROLS;
@@ -3835,7 +4095,12 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
 	vmcs_conf->size = vmx_msr_high & 0x1fff;
 	vmcs_conf->order = get_order(vmcs_conf->size);
 	vmcs_conf->basic_cap = vmx_msr_high & ~0x1fff;
-	vmcs_conf->revision_id = vmx_msr_low;
+
+	/* KVM supports Enlightened VMCS v1 only */
+	if (static_branch_unlikely(&enable_evmcs))
+		vmcs_conf->revision_id = KVM_EVMCS_VERSION;
+	else
+		vmcs_conf->revision_id = vmx_msr_low;
 
 	vmcs_conf->pin_based_exec_ctrl = _pin_based_exec_control;
 	vmcs_conf->cpu_based_exec_ctrl = _cpu_based_exec_control;
@@ -3843,6 +4108,9 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
 	vmcs_conf->vmexit_ctrl         = _vmexit_control;
 	vmcs_conf->vmentry_ctrl        = _vmentry_control;
 
+	if (static_branch_unlikely(&enable_evmcs))
+		evmcs_sanitize_exec_ctrls(vmcs_conf);
+
 	cpu_has_load_ia32_efer =
 		allow_1_setting(MSR_IA32_VMX_ENTRY_CTLS,
 				VM_ENTRY_LOAD_IA32_EFER)
@@ -4162,6 +4430,7 @@ static void enter_rmode(struct kvm_vcpu *vcpu)
 {
 	unsigned long flags;
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	struct kvm_vmx *kvm_vmx = to_kvm_vmx(vcpu->kvm);
 
 	vmx_get_segment(vcpu, &vmx->rmode.segs[VCPU_SREG_TR], VCPU_SREG_TR);
 	vmx_get_segment(vcpu, &vmx->rmode.segs[VCPU_SREG_ES], VCPU_SREG_ES);
@@ -4177,13 +4446,13 @@ static void enter_rmode(struct kvm_vcpu *vcpu)
 	 * Very old userspace does not call KVM_SET_TSS_ADDR before entering
 	 * vcpu. Warn the user that an update is overdue.
 	 */
-	if (!vcpu->kvm->arch.tss_addr)
+	if (!kvm_vmx->tss_addr)
 		printk_once(KERN_WARNING "kvm: KVM_SET_TSS_ADDR need to be "
 			     "called before entering vcpu\n");
 
 	vmx_segment_cache_clear(vmx);
 
-	vmcs_writel(GUEST_TR_BASE, vcpu->kvm->arch.tss_addr);
+	vmcs_writel(GUEST_TR_BASE, kvm_vmx->tss_addr);
 	vmcs_write32(GUEST_TR_LIMIT, RMODE_TSS_SIZE - 1);
 	vmcs_write32(GUEST_TR_AR_BYTES, 0x008b);
 
@@ -4291,7 +4560,7 @@ static void vmx_decache_cr0_guest_bits(struct kvm_vcpu *vcpu)
 
 static void vmx_decache_cr3(struct kvm_vcpu *vcpu)
 {
-	if (enable_ept && is_paging(vcpu))
+	if (enable_unrestricted_guest || (enable_ept && is_paging(vcpu)))
 		vcpu->arch.cr3 = vmcs_readl(GUEST_CR3);
 	__set_bit(VCPU_EXREG_CR3, (ulong *)&vcpu->arch.regs_avail);
 }
@@ -4339,11 +4608,11 @@ static void ept_save_pdptrs(struct kvm_vcpu *vcpu)
 
 static bool nested_guest_cr0_valid(struct kvm_vcpu *vcpu, unsigned long val)
 {
-	u64 fixed0 = to_vmx(vcpu)->nested.nested_vmx_cr0_fixed0;
-	u64 fixed1 = to_vmx(vcpu)->nested.nested_vmx_cr0_fixed1;
+	u64 fixed0 = to_vmx(vcpu)->nested.msrs.cr0_fixed0;
+	u64 fixed1 = to_vmx(vcpu)->nested.msrs.cr0_fixed1;
 	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
 
-	if (to_vmx(vcpu)->nested.nested_vmx_secondary_ctls_high &
+	if (to_vmx(vcpu)->nested.msrs.secondary_ctls_high &
 		SECONDARY_EXEC_UNRESTRICTED_GUEST &&
 	    nested_cpu_has2(vmcs12, SECONDARY_EXEC_UNRESTRICTED_GUEST))
 		fixed0 &= ~(X86_CR0_PE | X86_CR0_PG);
@@ -4353,16 +4622,16 @@ static bool nested_guest_cr0_valid(struct kvm_vcpu *vcpu, unsigned long val)
 
 static bool nested_host_cr0_valid(struct kvm_vcpu *vcpu, unsigned long val)
 {
-	u64 fixed0 = to_vmx(vcpu)->nested.nested_vmx_cr0_fixed0;
-	u64 fixed1 = to_vmx(vcpu)->nested.nested_vmx_cr0_fixed1;
+	u64 fixed0 = to_vmx(vcpu)->nested.msrs.cr0_fixed0;
+	u64 fixed1 = to_vmx(vcpu)->nested.msrs.cr0_fixed1;
 
 	return fixed_bits_valid(val, fixed0, fixed1);
 }
 
 static bool nested_cr4_valid(struct kvm_vcpu *vcpu, unsigned long val)
 {
-	u64 fixed0 = to_vmx(vcpu)->nested.nested_vmx_cr4_fixed0;
-	u64 fixed1 = to_vmx(vcpu)->nested.nested_vmx_cr4_fixed1;
+	u64 fixed0 = to_vmx(vcpu)->nested.msrs.cr4_fixed0;
+	u64 fixed1 = to_vmx(vcpu)->nested.msrs.cr4_fixed1;
 
 	return fixed_bits_valid(val, fixed0, fixed1);
 }
@@ -4428,7 +4697,7 @@ static void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
 	}
 #endif
 
-	if (enable_ept)
+	if (enable_ept && !enable_unrestricted_guest)
 		ept_update_paging_mode_cr0(&hw_cr0, cr0, vcpu);
 
 	vmcs_writel(CR0_READ_SHADOW, cr0);
@@ -4469,10 +4738,11 @@ static void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
 	if (enable_ept) {
 		eptp = construct_eptp(vcpu, cr3);
 		vmcs_write64(EPT_POINTER, eptp);
-		if (is_paging(vcpu) || is_guest_mode(vcpu))
+		if (enable_unrestricted_guest || is_paging(vcpu) ||
+		    is_guest_mode(vcpu))
 			guest_cr3 = kvm_read_cr3(vcpu);
 		else
-			guest_cr3 = vcpu->kvm->arch.ept_identity_map_addr;
+			guest_cr3 = to_kvm_vmx(vcpu->kvm)->ept_identity_map_addr;
 		ept_load_pdptrs(vcpu);
 	}
 
@@ -4487,11 +4757,15 @@ static int vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
 	 * is in force while we are in guest mode.  Do not let guests control
 	 * this bit, even if host CR4.MCE == 0.
 	 */
-	unsigned long hw_cr4 =
-		(cr4_read_shadow() & X86_CR4_MCE) |
-		(cr4 & ~X86_CR4_MCE) |
-		(to_vmx(vcpu)->rmode.vm86_active ?
-		 KVM_RMODE_VM_CR4_ALWAYS_ON : KVM_PMODE_VM_CR4_ALWAYS_ON);
+	unsigned long hw_cr4;
+
+	hw_cr4 = (cr4_read_shadow() & X86_CR4_MCE) | (cr4 & ~X86_CR4_MCE);
+	if (enable_unrestricted_guest)
+		hw_cr4 |= KVM_VM_CR4_ALWAYS_ON_UNRESTRICTED_GUEST;
+	else if (to_vmx(vcpu)->rmode.vm86_active)
+		hw_cr4 |= KVM_RMODE_VM_CR4_ALWAYS_ON;
+	else
+		hw_cr4 |= KVM_PMODE_VM_CR4_ALWAYS_ON;
 
 	if ((cr4 & X86_CR4_UMIP) && !boot_cpu_has(X86_FEATURE_UMIP)) {
 		vmcs_set_bits(SECONDARY_VM_EXEC_CONTROL,
@@ -4517,16 +4791,17 @@ static int vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
 		return 1;
 
 	vcpu->arch.cr4 = cr4;
-	if (enable_ept) {
-		if (!is_paging(vcpu)) {
-			hw_cr4 &= ~X86_CR4_PAE;
-			hw_cr4 |= X86_CR4_PSE;
-		} else if (!(cr4 & X86_CR4_PAE)) {
-			hw_cr4 &= ~X86_CR4_PAE;
+
+	if (!enable_unrestricted_guest) {
+		if (enable_ept) {
+			if (!is_paging(vcpu)) {
+				hw_cr4 &= ~X86_CR4_PAE;
+				hw_cr4 |= X86_CR4_PSE;
+			} else if (!(cr4 & X86_CR4_PAE)) {
+				hw_cr4 &= ~X86_CR4_PAE;
+			}
 		}
-	}
 
-	if (!enable_unrestricted_guest && !is_paging(vcpu))
 		/*
 		 * SMEP/SMAP/PKU is disabled if CPU is in non-paging mode in
 		 * hardware.  To emulate this behavior, SMEP/SMAP/PKU needs
@@ -4538,7 +4813,9 @@ static int vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
 		 * If enable_unrestricted_guest, the CPU automatically
 		 * disables SMEP/SMAP/PKU when the guest sets CR0.PG=0.
 		 */
-		hw_cr4 &= ~(X86_CR4_SMEP | X86_CR4_SMAP | X86_CR4_PKE);
+		if (!is_paging(vcpu))
+			hw_cr4 &= ~(X86_CR4_SMEP | X86_CR4_SMAP | X86_CR4_PKE);
+	}
 
 	vmcs_writel(CR4_READ_SHADOW, cr4);
 	vmcs_writel(GUEST_CR4, hw_cr4);
@@ -4906,7 +5183,7 @@ static int init_rmode_tss(struct kvm *kvm)
 	int idx, r;
 
 	idx = srcu_read_lock(&kvm->srcu);
-	fn = kvm->arch.tss_addr >> PAGE_SHIFT;
+	fn = to_kvm_vmx(kvm)->tss_addr >> PAGE_SHIFT;
 	r = kvm_clear_guest_page(kvm, fn, 0, PAGE_SIZE);
 	if (r < 0)
 		goto out;
@@ -4932,22 +5209,23 @@ out:
 
 static int init_rmode_identity_map(struct kvm *kvm)
 {
+	struct kvm_vmx *kvm_vmx = to_kvm_vmx(kvm);
 	int i, idx, r = 0;
 	kvm_pfn_t identity_map_pfn;
 	u32 tmp;
 
-	/* Protect kvm->arch.ept_identity_pagetable_done. */
+	/* Protect kvm_vmx->ept_identity_pagetable_done. */
 	mutex_lock(&kvm->slots_lock);
 
-	if (likely(kvm->arch.ept_identity_pagetable_done))
+	if (likely(kvm_vmx->ept_identity_pagetable_done))
 		goto out2;
 
-	if (!kvm->arch.ept_identity_map_addr)
-		kvm->arch.ept_identity_map_addr = VMX_EPT_IDENTITY_PAGETABLE_ADDR;
-	identity_map_pfn = kvm->arch.ept_identity_map_addr >> PAGE_SHIFT;
+	if (!kvm_vmx->ept_identity_map_addr)
+		kvm_vmx->ept_identity_map_addr = VMX_EPT_IDENTITY_PAGETABLE_ADDR;
+	identity_map_pfn = kvm_vmx->ept_identity_map_addr >> PAGE_SHIFT;
 
 	r = __x86_set_memory_region(kvm, IDENTITY_PAGETABLE_PRIVATE_MEMSLOT,
-				    kvm->arch.ept_identity_map_addr, PAGE_SIZE);
+				    kvm_vmx->ept_identity_map_addr, PAGE_SIZE);
 	if (r < 0)
 		goto out2;
 
@@ -4964,7 +5242,7 @@ static int init_rmode_identity_map(struct kvm *kvm)
 		if (r < 0)
 			goto out;
 	}
-	kvm->arch.ept_identity_pagetable_done = true;
+	kvm_vmx->ept_identity_pagetable_done = true;
 
 out:
 	srcu_read_unlock(&kvm->srcu, idx);
@@ -5500,6 +5778,11 @@ static u32 vmx_exec_control(struct vcpu_vmx *vmx)
 		exec_control |= CPU_BASED_CR3_STORE_EXITING |
 				CPU_BASED_CR3_LOAD_EXITING  |
 				CPU_BASED_INVLPG_EXITING;
+	if (kvm_mwait_in_guest(vmx->vcpu.kvm))
+		exec_control &= ~(CPU_BASED_MWAIT_EXITING |
+				CPU_BASED_MONITOR_EXITING);
+	if (kvm_hlt_in_guest(vmx->vcpu.kvm))
+		exec_control &= ~CPU_BASED_HLT_EXITING;
 	return exec_control;
 }
 
@@ -5533,7 +5816,7 @@ static void vmx_compute_secondary_exec_control(struct vcpu_vmx *vmx)
 	}
 	if (!enable_unrestricted_guest)
 		exec_control &= ~SECONDARY_EXEC_UNRESTRICTED_GUEST;
-	if (!ple_gap)
+	if (kvm_pause_in_guest(vmx->vcpu.kvm))
 		exec_control &= ~SECONDARY_EXEC_PAUSE_LOOP_EXITING;
 	if (!kvm_vcpu_apicv_active(vcpu))
 		exec_control &= ~(SECONDARY_EXEC_APIC_REGISTER_VIRT |
@@ -5565,10 +5848,10 @@ static void vmx_compute_secondary_exec_control(struct vcpu_vmx *vmx)
 
 		if (nested) {
 			if (xsaves_enabled)
-				vmx->nested.nested_vmx_secondary_ctls_high |=
+				vmx->nested.msrs.secondary_ctls_high |=
 					SECONDARY_EXEC_XSAVES;
 			else
-				vmx->nested.nested_vmx_secondary_ctls_high &=
+				vmx->nested.msrs.secondary_ctls_high &=
 					~SECONDARY_EXEC_XSAVES;
 		}
 	}
@@ -5580,10 +5863,10 @@ static void vmx_compute_secondary_exec_control(struct vcpu_vmx *vmx)
 
 		if (nested) {
 			if (rdtscp_enabled)
-				vmx->nested.nested_vmx_secondary_ctls_high |=
+				vmx->nested.msrs.secondary_ctls_high |=
 					SECONDARY_EXEC_RDTSCP;
 			else
-				vmx->nested.nested_vmx_secondary_ctls_high &=
+				vmx->nested.msrs.secondary_ctls_high &=
 					~SECONDARY_EXEC_RDTSCP;
 		}
 	}
@@ -5601,10 +5884,10 @@ static void vmx_compute_secondary_exec_control(struct vcpu_vmx *vmx)
 
 		if (nested) {
 			if (invpcid_enabled)
-				vmx->nested.nested_vmx_secondary_ctls_high |=
+				vmx->nested.msrs.secondary_ctls_high |=
 					SECONDARY_EXEC_ENABLE_INVPCID;
 			else
-				vmx->nested.nested_vmx_secondary_ctls_high &=
+				vmx->nested.msrs.secondary_ctls_high &=
 					~SECONDARY_EXEC_ENABLE_INVPCID;
 		}
 	}
@@ -5616,10 +5899,10 @@ static void vmx_compute_secondary_exec_control(struct vcpu_vmx *vmx)
 
 		if (nested) {
 			if (rdrand_enabled)
-				vmx->nested.nested_vmx_secondary_ctls_high |=
+				vmx->nested.msrs.secondary_ctls_high |=
 					SECONDARY_EXEC_RDRAND_EXITING;
 			else
-				vmx->nested.nested_vmx_secondary_ctls_high &=
+				vmx->nested.msrs.secondary_ctls_high &=
 					~SECONDARY_EXEC_RDRAND_EXITING;
 		}
 	}
@@ -5631,10 +5914,10 @@ static void vmx_compute_secondary_exec_control(struct vcpu_vmx *vmx)
 
 		if (nested) {
 			if (rdseed_enabled)
-				vmx->nested.nested_vmx_secondary_ctls_high |=
+				vmx->nested.msrs.secondary_ctls_high |=
 					SECONDARY_EXEC_RDSEED_EXITING;
 			else
-				vmx->nested.nested_vmx_secondary_ctls_high &=
+				vmx->nested.msrs.secondary_ctls_high &=
 					~SECONDARY_EXEC_RDSEED_EXITING;
 		}
 	}
@@ -5696,7 +5979,7 @@ static void vmx_vcpu_setup(struct vcpu_vmx *vmx)
 		vmcs_write64(POSTED_INTR_DESC_ADDR, __pa((&vmx->pi_desc)));
 	}
 
-	if (ple_gap) {
+	if (!kvm_pause_in_guest(vmx->vcpu.kvm)) {
 		vmcs_write32(PLE_GAP, ple_gap);
 		vmx->ple_window = ple_window;
 		vmx->ple_window_dirty = true;
@@ -5861,6 +6144,8 @@ static void vmx_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
 	update_exception_bitmap(vcpu);
 
 	vpid_sync_context(vmx->vpid);
+	if (init_event)
+		vmx_clear_hlt(vcpu);
 }
 
 /*
@@ -5885,8 +6170,7 @@ static bool nested_exit_intr_ack_set(struct kvm_vcpu *vcpu)
 
 static bool nested_exit_on_nmi(struct kvm_vcpu *vcpu)
 {
-	return get_vmcs12(vcpu)->pin_based_vm_exec_control &
-		PIN_BASED_NMI_EXITING;
+	return nested_cpu_has_nmi_exiting(get_vmcs12(vcpu));
 }
 
 static void enable_irq_window(struct kvm_vcpu *vcpu)
@@ -5932,6 +6216,8 @@ static void vmx_inject_irq(struct kvm_vcpu *vcpu)
 	} else
 		intr |= INTR_TYPE_EXT_INTR;
 	vmcs_write32(VM_ENTRY_INTR_INFO_FIELD, intr);
+
+	vmx_clear_hlt(vcpu);
 }
 
 static void vmx_inject_nmi(struct kvm_vcpu *vcpu)
@@ -5962,6 +6248,8 @@ static void vmx_inject_nmi(struct kvm_vcpu *vcpu)
 
 	vmcs_write32(VM_ENTRY_INTR_INFO_FIELD,
 			INTR_TYPE_NMI_INTR | INTR_INFO_VALID_MASK | NMI_VECTOR);
+
+	vmx_clear_hlt(vcpu);
 }
 
 static bool vmx_get_nmi_mask(struct kvm_vcpu *vcpu)
@@ -6024,14 +6312,23 @@ static int vmx_set_tss_addr(struct kvm *kvm, unsigned int addr)
 {
 	int ret;
 
+	if (enable_unrestricted_guest)
+		return 0;
+
 	ret = x86_set_memory_region(kvm, TSS_PRIVATE_MEMSLOT, addr,
 				    PAGE_SIZE * 3);
 	if (ret)
 		return ret;
-	kvm->arch.tss_addr = addr;
+	to_kvm_vmx(kvm)->tss_addr = addr;
 	return init_rmode_tss(kvm);
 }
 
+static int vmx_set_identity_map_addr(struct kvm *kvm, u64 ident_addr)
+{
+	to_kvm_vmx(kvm)->ept_identity_map_addr = ident_addr;
+	return 0;
+}
+
 static bool rmode_exception(struct kvm_vcpu *vcpu, int vec)
 {
 	switch (vec) {
@@ -6134,19 +6431,24 @@ static int handle_exception(struct kvm_vcpu *vcpu)
 	if (is_nmi(intr_info))
 		return 1;  /* already handled by vmx_vcpu_run() */
 
-	if (is_invalid_opcode(intr_info)) {
-		er = emulate_instruction(vcpu, EMULTYPE_TRAP_UD);
-		if (er == EMULATE_USER_EXIT)
-			return 0;
-		if (er != EMULATE_DONE)
-			kvm_queue_exception(vcpu, UD_VECTOR);
-		return 1;
-	}
+	if (is_invalid_opcode(intr_info))
+		return handle_ud(vcpu);
 
 	error_code = 0;
 	if (intr_info & INTR_INFO_DELIVER_CODE_MASK)
 		error_code = vmcs_read32(VM_EXIT_INTR_ERROR_CODE);
 
+	if (!vmx->rmode.vm86_active && is_gp_fault(intr_info)) {
+		WARN_ON_ONCE(!enable_vmware_backdoor);
+		er = emulate_instruction(vcpu,
+			EMULTYPE_VMWARE | EMULTYPE_NO_UD_ON_FAIL);
+		if (er == EMULATE_USER_EXIT)
+			return 0;
+		else if (er != EMULATE_DONE)
+			kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
+		return 1;
+	}
+
 	/*
 	 * The #PF with PFEC.RSVD = 1 indicates the guest is accessing
 	 * MMIO, it is better to report an internal error.
@@ -6232,28 +6534,22 @@ static int handle_triple_fault(struct kvm_vcpu *vcpu)
 static int handle_io(struct kvm_vcpu *vcpu)
 {
 	unsigned long exit_qualification;
-	int size, in, string, ret;
+	int size, in, string;
 	unsigned port;
 
 	exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
 	string = (exit_qualification & 16) != 0;
-	in = (exit_qualification & 8) != 0;
 
 	++vcpu->stat.io_exits;
 
-	if (string || in)
+	if (string)
 		return emulate_instruction(vcpu, 0) == EMULATE_DONE;
 
 	port = exit_qualification >> 16;
 	size = (exit_qualification & 7) + 1;
+	in = (exit_qualification & 8) != 0;
 
-	ret = kvm_skip_emulated_instruction(vcpu);
-
-	/*
-	 * TODO: we might be squashing a KVM_GUESTDBG_SINGLESTEP-triggered
-	 * KVM_EXIT_DEBUG here.
-	 */
-	return kvm_fast_pio_out(vcpu, size, port) && ret;
+	return kvm_fast_pio(vcpu, size, port, in);
 }
 
 static void
@@ -6344,6 +6640,7 @@ static int handle_cr(struct kvm_vcpu *vcpu)
 			err = handle_set_cr0(vcpu, val);
 			return kvm_complete_insn_gp(vcpu, err);
 		case 3:
+			WARN_ON_ONCE(enable_unrestricted_guest);
 			err = kvm_set_cr3(vcpu, val);
 			return kvm_complete_insn_gp(vcpu, err);
 		case 4:
@@ -6376,6 +6673,7 @@ static int handle_cr(struct kvm_vcpu *vcpu)
 	case 1: /*mov from cr*/
 		switch (cr) {
 		case 3:
+			WARN_ON_ONCE(enable_unrestricted_guest);
 			val = kvm_read_cr3(vcpu);
 			kvm_register_write(vcpu, reg, val);
 			trace_kvm_cr_read(cr, val);
@@ -6769,7 +7067,6 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu)
 
 static int handle_ept_misconfig(struct kvm_vcpu *vcpu)
 {
-	int ret;
 	gpa_t gpa;
 
 	/*
@@ -6797,17 +7094,7 @@ static int handle_ept_misconfig(struct kvm_vcpu *vcpu)
 						       NULL, 0) == EMULATE_DONE;
 	}
 
-	ret = kvm_mmu_page_fault(vcpu, gpa, PFERR_RSVD_MASK, NULL, 0);
-	if (ret >= 0)
-		return ret;
-
-	/* It is the real ept misconfig */
-	WARN_ON(1);
-
-	vcpu->run->exit_reason = KVM_EXIT_UNKNOWN;
-	vcpu->run->hw.hardware_exit_reason = EXIT_REASON_EPT_MISCONFIG;
-
-	return 0;
+	return kvm_mmu_page_fault(vcpu, gpa, PFERR_RSVD_MASK, NULL, 0);
 }
 
 static int handle_nmi_window(struct kvm_vcpu *vcpu)
@@ -6830,6 +7117,13 @@ static int handle_invalid_guest_state(struct kvm_vcpu *vcpu)
 	bool intr_window_requested;
 	unsigned count = 130;
 
+	/*
+	 * We should never reach the point where we are emulating L2
+	 * due to invalid guest state as that means we incorrectly
+	 * allowed a nested VMEntry with an invalid vmcs12.
+	 */
+	WARN_ON_ONCE(vmx->emulation_required && vmx->nested.nested_run_pending);
+
 	cpu_exec_ctrl = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL);
 	intr_window_requested = cpu_exec_ctrl & CPU_BASED_VIRTUAL_INTR_PENDING;
 
@@ -6848,12 +7142,12 @@ static int handle_invalid_guest_state(struct kvm_vcpu *vcpu)
 			goto out;
 		}
 
-		if (err != EMULATE_DONE) {
-			vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
-			vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_EMULATION;
-			vcpu->run->internal.ndata = 0;
-			return 0;
-		}
+		if (err != EMULATE_DONE)
+			goto emulation_error;
+
+		if (vmx->emulation_required && !vmx->rmode.vm86_active &&
+		    vcpu->arch.exception.pending)
+			goto emulation_error;
 
 		if (vcpu->arch.halt_request) {
 			vcpu->arch.halt_request = 0;
@@ -6869,34 +7163,12 @@ static int handle_invalid_guest_state(struct kvm_vcpu *vcpu)
 
 out:
 	return ret;
-}
-
-static int __grow_ple_window(int val)
-{
-	if (ple_window_grow < 1)
-		return ple_window;
 
-	val = min(val, ple_window_actual_max);
-
-	if (ple_window_grow < ple_window)
-		val *= ple_window_grow;
-	else
-		val += ple_window_grow;
-
-	return val;
-}
-
-static int __shrink_ple_window(int val, int modifier, int minimum)
-{
-	if (modifier < 1)
-		return ple_window;
-
-	if (modifier < ple_window)
-		val /= modifier;
-	else
-		val -= modifier;
-
-	return max(val, minimum);
+emulation_error:
+	vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+	vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_EMULATION;
+	vcpu->run->internal.ndata = 0;
+	return 0;
 }
 
 static void grow_ple_window(struct kvm_vcpu *vcpu)
@@ -6904,7 +7176,9 @@ static void grow_ple_window(struct kvm_vcpu *vcpu)
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	int old = vmx->ple_window;
 
-	vmx->ple_window = __grow_ple_window(old);
+	vmx->ple_window = __grow_ple_window(old, ple_window,
+					    ple_window_grow,
+					    ple_window_max);
 
 	if (vmx->ple_window != old)
 		vmx->ple_window_dirty = true;
@@ -6917,8 +7191,9 @@ static void shrink_ple_window(struct kvm_vcpu *vcpu)
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	int old = vmx->ple_window;
 
-	vmx->ple_window = __shrink_ple_window(old,
-	                                      ple_window_shrink, ple_window);
+	vmx->ple_window = __shrink_ple_window(old, ple_window,
+					      ple_window_shrink,
+					      ple_window);
 
 	if (vmx->ple_window != old)
 		vmx->ple_window_dirty = true;
@@ -6927,21 +7202,6 @@ static void shrink_ple_window(struct kvm_vcpu *vcpu)
 }
 
 /*
- * ple_window_actual_max is computed to be one grow_ple_window() below
- * ple_window_max. (See __grow_ple_window for the reason.)
- * This prevents overflows, because ple_window_max is int.
- * ple_window_max effectively rounded down to a multiple of ple_window_grow in
- * this process.
- * ple_window_max is also prevented from setting vmx->ple_window < ple_window.
- */
-static void update_ple_window_actual_max(void)
-{
-	ple_window_actual_max =
-			__shrink_ple_window(max(ple_window_max, ple_window),
-			                    ple_window_grow, INT_MIN);
-}
-
-/*
  * Handler for POSTED_INTERRUPT_WAKEUP_VECTOR.
  */
 static void wakeup_handler(void)
@@ -6960,7 +7220,7 @@ static void wakeup_handler(void)
 	spin_unlock(&per_cpu(blocked_vcpu_on_cpu_lock, cpu));
 }
 
-void vmx_enable_tdp(void)
+static void vmx_enable_tdp(void)
 {
 	kvm_mmu_set_mask_ptes(VMX_EPT_READABLE_MASK,
 		enable_ept_ad_bits ? VMX_EPT_ACCESS_BIT : 0ull,
@@ -7061,8 +7321,6 @@ static __init int hardware_setup(void)
 	else
 		kvm_disable_tdp();
 
-	update_ple_window_actual_max();
-
 	/*
 	 * Only enable PML when hardware supports PML feature, and both EPT
 	 * and EPT A/D bit features are enabled -- PML depends on them to work.
@@ -7094,6 +7352,7 @@ static __init int hardware_setup(void)
 		init_vmcs_shadow_fields();
 
 	kvm_set_posted_intr_wakeup_handler(wakeup_handler);
+	nested_vmx_setup_ctls_msrs(&vmcs_config.nested, enable_apicv);
 
 	kvm_mce_cap_supported |= MCG_LMCE_P;
 
@@ -7122,7 +7381,7 @@ static __exit void hardware_unsetup(void)
  */
 static int handle_pause(struct kvm_vcpu *vcpu)
 {
-	if (ple_gap)
+	if (!kvm_pause_in_guest(vcpu->kvm))
 		grow_ple_window(vcpu);
 
 	/*
@@ -7954,9 +8213,9 @@ static int handle_invept(struct kvm_vcpu *vcpu)
 		u64 eptp, gpa;
 	} operand;
 
-	if (!(vmx->nested.nested_vmx_secondary_ctls_high &
+	if (!(vmx->nested.msrs.secondary_ctls_high &
 	      SECONDARY_EXEC_ENABLE_EPT) ||
-	    !(vmx->nested.nested_vmx_ept_caps & VMX_EPT_INVEPT_BIT)) {
+	    !(vmx->nested.msrs.ept_caps & VMX_EPT_INVEPT_BIT)) {
 		kvm_queue_exception(vcpu, UD_VECTOR);
 		return 1;
 	}
@@ -7967,7 +8226,7 @@ static int handle_invept(struct kvm_vcpu *vcpu)
 	vmx_instruction_info = vmcs_read32(VMX_INSTRUCTION_INFO);
 	type = kvm_register_readl(vcpu, (vmx_instruction_info >> 28) & 0xf);
 
-	types = (vmx->nested.nested_vmx_ept_caps >> VMX_EPT_EXTENT_SHIFT) & 6;
+	types = (vmx->nested.msrs.ept_caps >> VMX_EPT_EXTENT_SHIFT) & 6;
 
 	if (type >= 32 || !(types & (1 << type))) {
 		nested_vmx_failValid(vcpu,
@@ -8018,9 +8277,9 @@ static int handle_invvpid(struct kvm_vcpu *vcpu)
 		u64 gla;
 	} operand;
 
-	if (!(vmx->nested.nested_vmx_secondary_ctls_high &
+	if (!(vmx->nested.msrs.secondary_ctls_high &
 	      SECONDARY_EXEC_ENABLE_VPID) ||
-			!(vmx->nested.nested_vmx_vpid_caps & VMX_VPID_INVVPID_BIT)) {
+			!(vmx->nested.msrs.vpid_caps & VMX_VPID_INVVPID_BIT)) {
 		kvm_queue_exception(vcpu, UD_VECTOR);
 		return 1;
 	}
@@ -8031,7 +8290,7 @@ static int handle_invvpid(struct kvm_vcpu *vcpu)
 	vmx_instruction_info = vmcs_read32(VMX_INSTRUCTION_INFO);
 	type = kvm_register_readl(vcpu, (vmx_instruction_info >> 28) & 0xf);
 
-	types = (vmx->nested.nested_vmx_vpid_caps &
+	types = (vmx->nested.msrs.vpid_caps &
 			VMX_VPID_EXTENT_SUPPORTED_MASK) >> 8;
 
 	if (type >= 32 || !(types & (1 << type))) {
@@ -8125,11 +8384,11 @@ static bool valid_ept_address(struct kvm_vcpu *vcpu, u64 address)
 	/* Check for memory type validity */
 	switch (address & VMX_EPTP_MT_MASK) {
 	case VMX_EPTP_MT_UC:
-		if (!(vmx->nested.nested_vmx_ept_caps & VMX_EPTP_UC_BIT))
+		if (!(vmx->nested.msrs.ept_caps & VMX_EPTP_UC_BIT))
 			return false;
 		break;
 	case VMX_EPTP_MT_WB:
-		if (!(vmx->nested.nested_vmx_ept_caps & VMX_EPTP_WB_BIT))
+		if (!(vmx->nested.msrs.ept_caps & VMX_EPTP_WB_BIT))
 			return false;
 		break;
 	default:
@@ -8146,7 +8405,7 @@ static bool valid_ept_address(struct kvm_vcpu *vcpu, u64 address)
 
 	/* AD, if set, should be supported */
 	if (address & VMX_EPTP_AD_ENABLE_BIT) {
-		if (!(vmx->nested.nested_vmx_ept_caps & VMX_EPT_AD_BIT))
+		if (!(vmx->nested.msrs.ept_caps & VMX_EPT_AD_BIT))
 			return false;
 	}
 
@@ -8790,7 +9049,8 @@ static void dump_vmcs(void)
 	pr_err("DebugCtl = 0x%016llx  DebugExceptions = 0x%016lx\n",
 	       vmcs_read64(GUEST_IA32_DEBUGCTL),
 	       vmcs_readl(GUEST_PENDING_DBG_EXCEPTIONS));
-	if (vmentry_ctl & VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL)
+	if (cpu_has_load_perf_global_ctrl &&
+	    vmentry_ctl & VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL)
 		pr_err("PerfGlobCtl = 0x%016llx\n",
 		       vmcs_read64(GUEST_IA32_PERF_GLOBAL_CTRL));
 	if (vmentry_ctl & VM_ENTRY_LOAD_BNDCFGS)
@@ -8826,7 +9086,8 @@ static void dump_vmcs(void)
 		pr_err("EFER = 0x%016llx  PAT = 0x%016llx\n",
 		       vmcs_read64(HOST_IA32_EFER),
 		       vmcs_read64(HOST_IA32_PAT));
-	if (vmexit_ctl & VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL)
+	if (cpu_has_load_perf_global_ctrl &&
+	    vmexit_ctl & VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL)
 		pr_err("PerfGlobCtl = 0x%016llx\n",
 		       vmcs_read64(HOST_IA32_PERF_GLOBAL_CTRL));
 
@@ -9178,9 +9439,9 @@ static void vmx_complete_atomic_exit(struct vcpu_vmx *vmx)
 
 	/* We need to handle NMIs before interrupts are enabled */
 	if (is_nmi(exit_intr_info)) {
-		kvm_before_handle_nmi(&vmx->vcpu);
+		kvm_before_interrupt(&vmx->vcpu);
 		asm("int $2");
-		kvm_after_handle_nmi(&vmx->vcpu);
+		kvm_after_interrupt(&vmx->vcpu);
 	}
 }
 
@@ -9403,7 +9664,7 @@ static void vmx_arm_hv_timer(struct kvm_vcpu *vcpu)
 static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	unsigned long cr3, cr4;
+	unsigned long cr3, cr4, evmcs_rsp;
 
 	/* Record the guest's net vcpu time for enforced NMI injections. */
 	if (unlikely(!enable_vnmi &&
@@ -9469,6 +9730,10 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 		native_wrmsrl(MSR_IA32_SPEC_CTRL, vmx->spec_ctrl);
 
 	vmx->__launched = vmx->loaded_vmcs->launched;
+
+	evmcs_rsp = static_branch_unlikely(&enable_evmcs) ?
+		(unsigned long)&current_evmcs->host_rsp : 0;
+
 	asm(
 		/* Store host registers */
 		"push %%" _ASM_DX "; push %%" _ASM_BP ";"
@@ -9477,15 +9742,21 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 		"cmp %%" _ASM_SP ", %c[host_rsp](%0) \n\t"
 		"je 1f \n\t"
 		"mov %%" _ASM_SP ", %c[host_rsp](%0) \n\t"
+		/* Avoid VMWRITE when Enlightened VMCS is in use */
+		"test %%" _ASM_SI ", %%" _ASM_SI " \n\t"
+		"jz 2f \n\t"
+		"mov %%" _ASM_SP ", (%%" _ASM_SI ") \n\t"
+		"jmp 1f \n\t"
+		"2: \n\t"
 		__ex(ASM_VMX_VMWRITE_RSP_RDX) "\n\t"
 		"1: \n\t"
 		/* Reload cr2 if changed */
 		"mov %c[cr2](%0), %%" _ASM_AX " \n\t"
 		"mov %%cr2, %%" _ASM_DX " \n\t"
 		"cmp %%" _ASM_AX ", %%" _ASM_DX " \n\t"
-		"je 2f \n\t"
+		"je 3f \n\t"
 		"mov %%" _ASM_AX", %%cr2 \n\t"
-		"2: \n\t"
+		"3: \n\t"
 		/* Check if vmlaunch of vmresume is needed */
 		"cmpl $0, %c[launched](%0) \n\t"
 		/* Load guest registers.  Don't clobber flags. */
@@ -9554,7 +9825,7 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 		".global vmx_return \n\t"
 		"vmx_return: " _ASM_PTR " 2b \n\t"
 		".popsection"
-	      : : "c"(vmx), "d"((unsigned long)HOST_RSP),
+	      : : "c"(vmx), "d"((unsigned long)HOST_RSP), "S"(evmcs_rsp),
 		[launched]"i"(offsetof(struct vcpu_vmx, __launched)),
 		[fail]"i"(offsetof(struct vcpu_vmx, fail)),
 		[host_rsp]"i"(offsetof(struct vcpu_vmx, host_rsp)),
@@ -9579,10 +9850,10 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 		[wordsize]"i"(sizeof(ulong))
 	      : "cc", "memory"
 #ifdef CONFIG_X86_64
-		, "rax", "rbx", "rdi", "rsi"
+		, "rax", "rbx", "rdi"
 		, "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15"
 #else
-		, "eax", "ebx", "edi", "esi"
+		, "eax", "ebx", "edi"
 #endif
 	      );
 
@@ -9610,6 +9881,11 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 	/* Eliminate branch target predictions from guest mode */
 	vmexit_fill_RSB();
 
+	/* All fields are clean at this point */
+	if (static_branch_unlikely(&enable_evmcs))
+		current_evmcs->hv_clean_fields |=
+			HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
+
 	/* MSR_IA32_DEBUGCTLMSR is zeroed on vmexit. Restore it if needed */
 	if (vmx->host_debugctlmsr)
 		update_debugctlmsr(vmx->host_debugctlmsr);
@@ -9646,14 +9922,6 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 			__write_pkru(vmx->host_pkru);
 	}
 
-	/*
-	 * the KVM_REQ_EVENT optimization bit is only on for one entry, and if
-	 * we did not inject a still-pending event to L1 now because of
-	 * nested_run_pending, we need to re-enable this bit.
-	 */
-	if (vmx->nested.nested_run_pending)
-		kvm_make_request(KVM_REQ_EVENT, vcpu);
-
 	vmx->nested.nested_run_pending = 0;
 	vmx->idt_vectoring_info = 0;
 
@@ -9670,6 +9938,17 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 }
 STACK_FRAME_NON_STANDARD(vmx_vcpu_run);
 
+static struct kvm *vmx_vm_alloc(void)
+{
+	struct kvm_vmx *kvm_vmx = kzalloc(sizeof(struct kvm_vmx), GFP_KERNEL);
+	return &kvm_vmx->kvm;
+}
+
+static void vmx_vm_free(struct kvm *kvm)
+{
+	kfree(to_kvm_vmx(kvm));
+}
+
 static void vmx_switch_vmcs(struct kvm_vcpu *vcpu, struct loaded_vmcs *vmcs)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
@@ -9777,14 +10056,15 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
 			goto free_vmcs;
 	}
 
-	if (enable_ept) {
+	if (enable_ept && !enable_unrestricted_guest) {
 		err = init_rmode_identity_map(kvm);
 		if (err)
 			goto free_vmcs;
 	}
 
 	if (nested) {
-		nested_vmx_setup_ctls_msrs(vmx);
+		nested_vmx_setup_ctls_msrs(&vmx->nested.msrs,
+					   kvm_vcpu_apicv_active(&vmx->vcpu));
 		vmx->nested.vpid02 = allocate_vpid();
 	}
 
@@ -9817,6 +10097,13 @@ free_vcpu:
 	return ERR_PTR(err);
 }
 
+static int vmx_vm_init(struct kvm *kvm)
+{
+	if (!ple_gap)
+		kvm->arch.pause_in_guest = true;
+	return 0;
+}
+
 static void __init vmx_check_processor_compat(void *rtn)
 {
 	struct vmcs_config vmcs_conf;
@@ -9824,6 +10111,7 @@ static void __init vmx_check_processor_compat(void *rtn)
 	*(int *)rtn = 0;
 	if (setup_vmcs_config(&vmcs_conf) < 0)
 		*(int *)rtn = -EIO;
+	nested_vmx_setup_ctls_msrs(&vmcs_conf.nested, enable_apicv);
 	if (memcmp(&vmcs_config, &vmcs_conf, sizeof(struct vmcs_config)) != 0) {
 		printk(KERN_ERR "kvm: CPU %d feature inconsistency!\n",
 				smp_processor_id());
@@ -9911,12 +10199,12 @@ static void nested_vmx_cr_fixed1_bits_update(struct kvm_vcpu *vcpu)
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	struct kvm_cpuid_entry2 *entry;
 
-	vmx->nested.nested_vmx_cr0_fixed1 = 0xffffffff;
-	vmx->nested.nested_vmx_cr4_fixed1 = X86_CR4_PCE;
+	vmx->nested.msrs.cr0_fixed1 = 0xffffffff;
+	vmx->nested.msrs.cr4_fixed1 = X86_CR4_PCE;
 
 #define cr4_fixed1_update(_cr4_mask, _reg, _cpuid_mask) do {		\
 	if (entry && (entry->_reg & (_cpuid_mask)))			\
-		vmx->nested.nested_vmx_cr4_fixed1 |= (_cr4_mask);	\
+		vmx->nested.msrs.cr4_fixed1 |= (_cr4_mask);	\
 } while (0)
 
 	entry = kvm_find_cpuid_entry(vcpu, 0x1, 0);
@@ -10013,7 +10301,7 @@ static int nested_ept_init_mmu_context(struct kvm_vcpu *vcpu)
 
 	kvm_mmu_unload(vcpu);
 	kvm_init_shadow_ept_mmu(vcpu,
-			to_vmx(vcpu)->nested.nested_vmx_ept_caps &
+			to_vmx(vcpu)->nested.msrs.ept_caps &
 			VMX_EPT_EXECUTE_ONLY_BIT,
 			nested_ept_ad_enabled(vcpu));
 	vcpu->arch.mmu.set_cr3           = vmx_set_cr3;
@@ -10311,6 +10599,16 @@ static inline bool nested_vmx_prepare_msr_bitmap(struct kvm_vcpu *vcpu,
 	return true;
 }
 
+static int nested_vmx_check_apic_access_controls(struct kvm_vcpu *vcpu,
+					  struct vmcs12 *vmcs12)
+{
+	if (nested_cpu_has2(vmcs12, SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES) &&
+	    !page_address_valid(vcpu, vmcs12->apic_access_addr))
+		return -EINVAL;
+	else
+		return 0;
+}
+
 static int nested_vmx_check_apicv_controls(struct kvm_vcpu *vcpu,
 					   struct vmcs12 *vmcs12)
 {
@@ -10879,11 +11177,8 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
 		vmcs_write64(GUEST_IA32_PAT, vmx->vcpu.arch.pat);
 	}
 
-	if (vmcs12->cpu_based_vm_exec_control & CPU_BASED_USE_TSC_OFFSETING)
-		vmcs_write64(TSC_OFFSET,
-			vcpu->arch.tsc_offset + vmcs12->tsc_offset);
-	else
-		vmcs_write64(TSC_OFFSET, vcpu->arch.tsc_offset);
+	vmcs_write64(TSC_OFFSET, vcpu->arch.tsc_offset);
+
 	if (kvm_has_tsc_control)
 		decache_tsc_multiplier(vmx);
 
@@ -10952,6 +11247,16 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
 	/* Note: modifies VM_ENTRY/EXIT_CONTROLS and GUEST/HOST_IA32_EFER */
 	vmx_set_efer(vcpu, vcpu->arch.efer);
 
+	/*
+	 * Guest state is invalid and unrestricted guest is disabled,
+	 * which means L1 attempted VMEntry to L2 with invalid state.
+	 * Fail the VMEntry.
+	 */
+	if (vmx->emulation_required) {
+		*entry_failure_code = ENTRY_FAIL_DEFAULT;
+		return 1;
+	}
+
 	/* Shadow page tables on either EPT or shadow page tables. */
 	if (nested_vmx_load_cr3(vcpu, vmcs12->guest_cr3, nested_cpu_has_ept(vmcs12),
 				entry_failure_code))
@@ -10965,6 +11270,19 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
 	return 0;
 }
 
+static int nested_vmx_check_nmi_controls(struct vmcs12 *vmcs12)
+{
+	if (!nested_cpu_has_nmi_exiting(vmcs12) &&
+	    nested_cpu_has_virtual_nmis(vmcs12))
+		return -EINVAL;
+
+	if (!nested_cpu_has_virtual_nmis(vmcs12) &&
+	    nested_cpu_has(vmcs12, CPU_BASED_VIRTUAL_NMI_PENDING))
+		return -EINVAL;
+
+	return 0;
+}
+
 static int check_vmentry_prereqs(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
@@ -10979,6 +11297,9 @@ static int check_vmentry_prereqs(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 	if (nested_vmx_check_msr_bitmap_controls(vcpu, vmcs12))
 		return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
 
+	if (nested_vmx_check_apic_access_controls(vcpu, vmcs12))
+		return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
+
 	if (nested_vmx_check_tpr_shadow_controls(vcpu, vmcs12))
 		return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
 
@@ -10992,26 +11313,29 @@ static int check_vmentry_prereqs(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 		return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
 
 	if (!vmx_control_verify(vmcs12->cpu_based_vm_exec_control,
-				vmx->nested.nested_vmx_procbased_ctls_low,
-				vmx->nested.nested_vmx_procbased_ctls_high) ||
+				vmx->nested.msrs.procbased_ctls_low,
+				vmx->nested.msrs.procbased_ctls_high) ||
 	    (nested_cpu_has(vmcs12, CPU_BASED_ACTIVATE_SECONDARY_CONTROLS) &&
 	     !vmx_control_verify(vmcs12->secondary_vm_exec_control,
-				 vmx->nested.nested_vmx_secondary_ctls_low,
-				 vmx->nested.nested_vmx_secondary_ctls_high)) ||
+				 vmx->nested.msrs.secondary_ctls_low,
+				 vmx->nested.msrs.secondary_ctls_high)) ||
 	    !vmx_control_verify(vmcs12->pin_based_vm_exec_control,
-				vmx->nested.nested_vmx_pinbased_ctls_low,
-				vmx->nested.nested_vmx_pinbased_ctls_high) ||
+				vmx->nested.msrs.pinbased_ctls_low,
+				vmx->nested.msrs.pinbased_ctls_high) ||
 	    !vmx_control_verify(vmcs12->vm_exit_controls,
-				vmx->nested.nested_vmx_exit_ctls_low,
-				vmx->nested.nested_vmx_exit_ctls_high) ||
+				vmx->nested.msrs.exit_ctls_low,
+				vmx->nested.msrs.exit_ctls_high) ||
 	    !vmx_control_verify(vmcs12->vm_entry_controls,
-				vmx->nested.nested_vmx_entry_ctls_low,
-				vmx->nested.nested_vmx_entry_ctls_high))
+				vmx->nested.msrs.entry_ctls_low,
+				vmx->nested.msrs.entry_ctls_high))
+		return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
+
+	if (nested_vmx_check_nmi_controls(vmcs12))
 		return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
 
 	if (nested_cpu_has_vmfunc(vmcs12)) {
 		if (vmcs12->vm_function_control &
-		    ~vmx->nested.nested_vmx_vmfunc_controls)
+		    ~vmx->nested.msrs.vmfunc_controls)
 			return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
 
 		if (nested_cpu_has_eptp_switching(vmcs12)) {
@@ -11097,6 +11421,7 @@ static int enter_vmx_non_root_mode(struct kvm_vcpu *vcpu, bool from_vmentry)
 	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
 	u32 msr_entry_idx;
 	u32 exit_qual;
+	int r;
 
 	enter_guest_mode(vcpu);
 
@@ -11106,26 +11431,21 @@ static int enter_vmx_non_root_mode(struct kvm_vcpu *vcpu, bool from_vmentry)
 	vmx_switch_vmcs(vcpu, &vmx->nested.vmcs02);
 	vmx_segment_cache_clear(vmx);
 
-	if (prepare_vmcs02(vcpu, vmcs12, from_vmentry, &exit_qual)) {
-		leave_guest_mode(vcpu);
-		vmx_switch_vmcs(vcpu, &vmx->vmcs01);
-		nested_vmx_entry_failure(vcpu, vmcs12,
-					 EXIT_REASON_INVALID_STATE, exit_qual);
-		return 1;
-	}
+	if (vmcs12->cpu_based_vm_exec_control & CPU_BASED_USE_TSC_OFFSETING)
+		vcpu->arch.tsc_offset += vmcs12->tsc_offset;
+
+	r = EXIT_REASON_INVALID_STATE;
+	if (prepare_vmcs02(vcpu, vmcs12, from_vmentry, &exit_qual))
+		goto fail;
 
 	nested_get_vmcs12_pages(vcpu, vmcs12);
 
+	r = EXIT_REASON_MSR_LOAD_FAIL;
 	msr_entry_idx = nested_vmx_load_msr(vcpu,
 					    vmcs12->vm_entry_msr_load_addr,
 					    vmcs12->vm_entry_msr_load_count);
-	if (msr_entry_idx) {
-		leave_guest_mode(vcpu);
-		vmx_switch_vmcs(vcpu, &vmx->vmcs01);
-		nested_vmx_entry_failure(vcpu, vmcs12,
-				EXIT_REASON_MSR_LOAD_FAIL, msr_entry_idx);
-		return 1;
-	}
+	if (msr_entry_idx)
+		goto fail;
 
 	/*
 	 * Note no nested_vmx_succeed or nested_vmx_fail here. At this point
@@ -11134,6 +11454,14 @@ static int enter_vmx_non_root_mode(struct kvm_vcpu *vcpu, bool from_vmentry)
 	 * the success flag) when L2 exits (see nested_vmx_vmexit()).
 	 */
 	return 0;
+
+fail:
+	if (vmcs12->cpu_based_vm_exec_control & CPU_BASED_USE_TSC_OFFSETING)
+		vcpu->arch.tsc_offset -= vmcs12->tsc_offset;
+	leave_guest_mode(vcpu);
+	vmx_switch_vmcs(vcpu, &vmx->vmcs01);
+	nested_vmx_entry_failure(vcpu, vmcs12, r, exit_qual);
+	return 1;
 }
 
 /*
@@ -11293,7 +11621,7 @@ static void vmcs12_save_pending_event(struct kvm_vcpu *vcpu,
 	} else if (vcpu->arch.nmi_injected) {
 		vmcs12->idt_vectoring_info_field =
 			INTR_TYPE_NMI_INTR | INTR_INFO_VALID_MASK | NMI_VECTOR;
-	} else if (vcpu->arch.interrupt.pending) {
+	} else if (vcpu->arch.interrupt.injected) {
 		nr = vcpu->arch.interrupt.nr;
 		idt_vectoring = nr | VECTORING_INFO_VALID_MASK;
 
@@ -11705,6 +12033,9 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
 
 	leave_guest_mode(vcpu);
 
+	if (vmcs12->cpu_based_vm_exec_control & CPU_BASED_USE_TSC_OFFSETING)
+		vcpu->arch.tsc_offset -= vmcs12->tsc_offset;
+
 	if (likely(!vmx->fail)) {
 		if (exit_reason == -1)
 			sync_vmcs12(vcpu, vmcs12);
@@ -11901,10 +12232,16 @@ static inline int u64_shl_div_u64(u64 a, unsigned int shift,
 
 static int vmx_set_hv_timer(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc)
 {
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	u64 tscl = rdtsc();
-	u64 guest_tscl = kvm_read_l1_tsc(vcpu, tscl);
-	u64 delta_tsc = max(guest_deadline_tsc, guest_tscl) - guest_tscl;
+	struct vcpu_vmx *vmx;
+	u64 tscl, guest_tscl, delta_tsc;
+
+	if (kvm_mwait_in_guest(vcpu->kvm))
+		return -EOPNOTSUPP;
+
+	vmx = to_vmx(vcpu);
+	tscl = rdtsc();
+	guest_tscl = kvm_read_l1_tsc(vcpu, tscl);
+	delta_tsc = max(guest_deadline_tsc, guest_tscl) - guest_tscl;
 
 	/* Convert to host delta tsc if tsc scaling is enabled */
 	if (vcpu->arch.tsc_scaling_ratio != kvm_default_tsc_scaling_ratio &&
@@ -11941,7 +12278,7 @@ static void vmx_cancel_hv_timer(struct kvm_vcpu *vcpu)
 
 static void vmx_sched_in(struct kvm_vcpu *vcpu, int cpu)
 {
-	if (ple_gap)
+	if (!kvm_pause_in_guest(vcpu->kvm))
 		shrink_ple_window(vcpu);
 }
 
@@ -12210,7 +12547,7 @@ static int vmx_update_pi_irte(struct kvm *kvm, unsigned int host_irq,
 		vcpu_info.pi_desc_addr = __pa(vcpu_to_pi_desc(vcpu));
 		vcpu_info.vector = irq.vector;
 
-		trace_kvm_pi_irte_update(vcpu->vcpu_id, host_irq, e->gsi,
+		trace_kvm_pi_irte_update(host_irq, vcpu->vcpu_id, e->gsi,
 				vcpu_info.vector, vcpu_info.pi_desc_addr, set);
 
 		if (set)
@@ -12259,6 +12596,7 @@ static int vmx_pre_enter_smm(struct kvm_vcpu *vcpu, char *smstate)
 
 	vmx->nested.smm.vmxon = vmx->nested.vmxon;
 	vmx->nested.vmxon = false;
+	vmx_clear_hlt(vcpu);
 	return 0;
 }
 
@@ -12300,6 +12638,10 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = {
 	.cpu_has_accelerated_tpr = report_flexpriority,
 	.cpu_has_high_real_mode_segbase = vmx_has_high_real_mode_segbase,
 
+	.vm_init = vmx_vm_init,
+	.vm_alloc = vmx_vm_alloc,
+	.vm_free = vmx_vm_free,
+
 	.vcpu_create = vmx_create_vcpu,
 	.vcpu_free = vmx_free_vcpu,
 	.vcpu_reset = vmx_vcpu_reset,
@@ -12367,6 +12709,7 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = {
 	.deliver_posted_interrupt = vmx_deliver_posted_interrupt,
 
 	.set_tss_addr = vmx_set_tss_addr,
+	.set_identity_map_addr = vmx_set_identity_map_addr,
 	.get_tdp_level = get_ept_level,
 	.get_mt_mask = vmx_get_mt_mask,
 
@@ -12383,6 +12726,7 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = {
 
 	.has_wbinvd_exit = cpu_has_vmx_wbinvd_exit,
 
+	.read_l1_tsc_offset = vmx_read_l1_tsc_offset,
 	.write_tsc_offset = vmx_write_tsc_offset,
 
 	.set_tdp_cr3 = vmx_set_cr3,
@@ -12425,7 +12769,38 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = {
 
 static int __init vmx_init(void)
 {
-	int r = kvm_init(&vmx_x86_ops, sizeof(struct vcpu_vmx),
+	int r;
+
+#if IS_ENABLED(CONFIG_HYPERV)
+	/*
+	 * Enlightened VMCS usage should be recommended and the host needs
+	 * to support eVMCS v1 or above. We can also disable eVMCS support
+	 * with module parameter.
+	 */
+	if (enlightened_vmcs &&
+	    ms_hyperv.hints & HV_X64_ENLIGHTENED_VMCS_RECOMMENDED &&
+	    (ms_hyperv.nested_features & HV_X64_ENLIGHTENED_VMCS_VERSION) >=
+	    KVM_EVMCS_VERSION) {
+		int cpu;
+
+		/* Check that we have assist pages on all online CPUs */
+		for_each_online_cpu(cpu) {
+			if (!hv_get_vp_assist_page(cpu)) {
+				enlightened_vmcs = false;
+				break;
+			}
+		}
+
+		if (enlightened_vmcs) {
+			pr_info("KVM: vmx: using Hyper-V Enlightened VMCS\n");
+			static_branch_enable(&enable_evmcs);
+		}
+	} else {
+		enlightened_vmcs = false;
+	}
+#endif
+
+	r = kvm_init(&vmx_x86_ops, sizeof(struct vcpu_vmx),
                      __alignof__(struct vcpu_vmx), THIS_MODULE);
 	if (r)
 		return r;
@@ -12446,6 +12821,29 @@ static void __exit vmx_exit(void)
 #endif
 
 	kvm_exit();
+
+#if IS_ENABLED(CONFIG_HYPERV)
+	if (static_branch_unlikely(&enable_evmcs)) {
+		int cpu;
+		struct hv_vp_assist_page *vp_ap;
+		/*
+		 * Reset everything to support using non-enlightened VMCS
+		 * access later (e.g. when we reload the module with
+		 * enlightened_vmcs=0)
+		 */
+		for_each_online_cpu(cpu) {
+			vp_ap =	hv_get_vp_assist_page(cpu);
+
+			if (!vp_ap)
+				continue;
+
+			vp_ap->current_nested_vmcs = 0;
+			vp_ap->enlighten_vmentry = 0;
+		}
+
+		static_branch_disable(&enable_evmcs);
+	}
+#endif
 }
 
 module_init(vmx_init)
diff --git a/arch/x86/kvm/vmx_evmcs.h b/arch/x86/kvm/vmx_evmcs.h
new file mode 100644
index 000000000000..210a884090ad
--- /dev/null
+++ b/arch/x86/kvm/vmx_evmcs.h
@@ -0,0 +1,324 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __KVM_X86_VMX_EVMCS_H
+#define __KVM_X86_VMX_EVMCS_H
+
+#include <asm/hyperv-tlfs.h>
+
+#define ROL16(val, n) ((u16)(((u16)(val) << (n)) | ((u16)(val) >> (16 - (n)))))
+#define EVMCS1_OFFSET(x) offsetof(struct hv_enlightened_vmcs, x)
+#define EVMCS1_FIELD(number, name, clean_field)[ROL16(number, 6)] = \
+		{EVMCS1_OFFSET(name), clean_field}
+
+struct evmcs_field {
+	u16 offset;
+	u16 clean_field;
+};
+
+static const struct evmcs_field vmcs_field_to_evmcs_1[] = {
+	/* 64 bit rw */
+	EVMCS1_FIELD(GUEST_RIP, guest_rip,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+	EVMCS1_FIELD(GUEST_RSP, guest_rsp,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC),
+	EVMCS1_FIELD(GUEST_RFLAGS, guest_rflags,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC),
+	EVMCS1_FIELD(HOST_IA32_PAT, host_ia32_pat,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(HOST_IA32_EFER, host_ia32_efer,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(HOST_CR0, host_cr0,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(HOST_CR3, host_cr3,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(HOST_CR4, host_cr4,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(HOST_IA32_SYSENTER_ESP, host_ia32_sysenter_esp,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(HOST_IA32_SYSENTER_EIP, host_ia32_sysenter_eip,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(HOST_RIP, host_rip,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(IO_BITMAP_A, io_bitmap_a,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP),
+	EVMCS1_FIELD(IO_BITMAP_B, io_bitmap_b,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP),
+	EVMCS1_FIELD(MSR_BITMAP, msr_bitmap,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP),
+	EVMCS1_FIELD(GUEST_ES_BASE, guest_es_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_CS_BASE, guest_cs_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_SS_BASE, guest_ss_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_DS_BASE, guest_ds_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_FS_BASE, guest_fs_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_GS_BASE, guest_gs_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_LDTR_BASE, guest_ldtr_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_TR_BASE, guest_tr_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_GDTR_BASE, guest_gdtr_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_IDTR_BASE, guest_idtr_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(TSC_OFFSET, tsc_offset,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2),
+	EVMCS1_FIELD(VIRTUAL_APIC_PAGE_ADDR, virtual_apic_page_addr,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2),
+	EVMCS1_FIELD(VMCS_LINK_POINTER, vmcs_link_pointer,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+	EVMCS1_FIELD(GUEST_IA32_DEBUGCTL, guest_ia32_debugctl,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+	EVMCS1_FIELD(GUEST_IA32_PAT, guest_ia32_pat,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+	EVMCS1_FIELD(GUEST_IA32_EFER, guest_ia32_efer,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+	EVMCS1_FIELD(GUEST_PDPTR0, guest_pdptr0,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+	EVMCS1_FIELD(GUEST_PDPTR1, guest_pdptr1,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+	EVMCS1_FIELD(GUEST_PDPTR2, guest_pdptr2,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+	EVMCS1_FIELD(GUEST_PDPTR3, guest_pdptr3,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+	EVMCS1_FIELD(GUEST_PENDING_DBG_EXCEPTIONS, guest_pending_dbg_exceptions,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+	EVMCS1_FIELD(GUEST_SYSENTER_ESP, guest_sysenter_esp,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+	EVMCS1_FIELD(GUEST_SYSENTER_EIP, guest_sysenter_eip,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+	EVMCS1_FIELD(CR0_GUEST_HOST_MASK, cr0_guest_host_mask,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+	EVMCS1_FIELD(CR4_GUEST_HOST_MASK, cr4_guest_host_mask,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+	EVMCS1_FIELD(CR0_READ_SHADOW, cr0_read_shadow,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+	EVMCS1_FIELD(CR4_READ_SHADOW, cr4_read_shadow,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+	EVMCS1_FIELD(GUEST_CR0, guest_cr0,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+	EVMCS1_FIELD(GUEST_CR3, guest_cr3,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+	EVMCS1_FIELD(GUEST_CR4, guest_cr4,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+	EVMCS1_FIELD(GUEST_DR7, guest_dr7,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR),
+	EVMCS1_FIELD(HOST_FS_BASE, host_fs_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
+	EVMCS1_FIELD(HOST_GS_BASE, host_gs_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
+	EVMCS1_FIELD(HOST_TR_BASE, host_tr_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
+	EVMCS1_FIELD(HOST_GDTR_BASE, host_gdtr_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
+	EVMCS1_FIELD(HOST_IDTR_BASE, host_idtr_base,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
+	EVMCS1_FIELD(HOST_RSP, host_rsp,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER),
+	EVMCS1_FIELD(EPT_POINTER, ept_pointer,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT),
+	EVMCS1_FIELD(GUEST_BNDCFGS, guest_bndcfgs,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+	EVMCS1_FIELD(XSS_EXIT_BITMAP, xss_exit_bitmap,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2),
+
+	/* 64 bit read only */
+	EVMCS1_FIELD(GUEST_PHYSICAL_ADDRESS, guest_physical_address,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+	EVMCS1_FIELD(EXIT_QUALIFICATION, exit_qualification,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+	/*
+	 * Not defined in KVM:
+	 *
+	 * EVMCS1_FIELD(0x00006402, exit_io_instruction_ecx,
+	 *		HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE);
+	 * EVMCS1_FIELD(0x00006404, exit_io_instruction_esi,
+	 *		HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE);
+	 * EVMCS1_FIELD(0x00006406, exit_io_instruction_esi,
+	 *		HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE);
+	 * EVMCS1_FIELD(0x00006408, exit_io_instruction_eip,
+	 *		HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE);
+	 */
+	EVMCS1_FIELD(GUEST_LINEAR_ADDRESS, guest_linear_address,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+
+	/*
+	 * No mask defined in the spec as Hyper-V doesn't currently support
+	 * these. Future proof by resetting the whole clean field mask on
+	 * access.
+	 */
+	EVMCS1_FIELD(VM_EXIT_MSR_STORE_ADDR, vm_exit_msr_store_addr,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+	EVMCS1_FIELD(VM_EXIT_MSR_LOAD_ADDR, vm_exit_msr_load_addr,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+	EVMCS1_FIELD(VM_ENTRY_MSR_LOAD_ADDR, vm_entry_msr_load_addr,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+	EVMCS1_FIELD(CR3_TARGET_VALUE0, cr3_target_value0,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+	EVMCS1_FIELD(CR3_TARGET_VALUE1, cr3_target_value1,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+	EVMCS1_FIELD(CR3_TARGET_VALUE2, cr3_target_value2,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+	EVMCS1_FIELD(CR3_TARGET_VALUE3, cr3_target_value3,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+
+	/* 32 bit rw */
+	EVMCS1_FIELD(TPR_THRESHOLD, tpr_threshold,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+	EVMCS1_FIELD(GUEST_INTERRUPTIBILITY_INFO, guest_interruptibility_info,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC),
+	EVMCS1_FIELD(CPU_BASED_VM_EXEC_CONTROL, cpu_based_vm_exec_control,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_PROC),
+	EVMCS1_FIELD(EXCEPTION_BITMAP, exception_bitmap,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EXCPN),
+	EVMCS1_FIELD(VM_ENTRY_CONTROLS, vm_entry_controls,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_ENTRY),
+	EVMCS1_FIELD(VM_ENTRY_INTR_INFO_FIELD, vm_entry_intr_info_field,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT),
+	EVMCS1_FIELD(VM_ENTRY_EXCEPTION_ERROR_CODE,
+		     vm_entry_exception_error_code,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT),
+	EVMCS1_FIELD(VM_ENTRY_INSTRUCTION_LEN, vm_entry_instruction_len,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT),
+	EVMCS1_FIELD(HOST_IA32_SYSENTER_CS, host_ia32_sysenter_cs,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(PIN_BASED_VM_EXEC_CONTROL, pin_based_vm_exec_control,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1),
+	EVMCS1_FIELD(VM_EXIT_CONTROLS, vm_exit_controls,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1),
+	EVMCS1_FIELD(SECONDARY_VM_EXEC_CONTROL, secondary_vm_exec_control,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1),
+	EVMCS1_FIELD(GUEST_ES_LIMIT, guest_es_limit,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_CS_LIMIT, guest_cs_limit,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_SS_LIMIT, guest_ss_limit,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_DS_LIMIT, guest_ds_limit,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_FS_LIMIT, guest_fs_limit,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_GS_LIMIT, guest_gs_limit,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_LDTR_LIMIT, guest_ldtr_limit,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_TR_LIMIT, guest_tr_limit,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_GDTR_LIMIT, guest_gdtr_limit,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_IDTR_LIMIT, guest_idtr_limit,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_ES_AR_BYTES, guest_es_ar_bytes,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_CS_AR_BYTES, guest_cs_ar_bytes,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_SS_AR_BYTES, guest_ss_ar_bytes,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_DS_AR_BYTES, guest_ds_ar_bytes,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_FS_AR_BYTES, guest_fs_ar_bytes,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_GS_AR_BYTES, guest_gs_ar_bytes,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_LDTR_AR_BYTES, guest_ldtr_ar_bytes,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_TR_AR_BYTES, guest_tr_ar_bytes,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_ACTIVITY_STATE, guest_activity_state,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+	EVMCS1_FIELD(GUEST_SYSENTER_CS, guest_sysenter_cs,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1),
+
+	/* 32 bit read only */
+	EVMCS1_FIELD(VM_INSTRUCTION_ERROR, vm_instruction_error,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+	EVMCS1_FIELD(VM_EXIT_REASON, vm_exit_reason,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+	EVMCS1_FIELD(VM_EXIT_INTR_INFO, vm_exit_intr_info,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+	EVMCS1_FIELD(VM_EXIT_INTR_ERROR_CODE, vm_exit_intr_error_code,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+	EVMCS1_FIELD(IDT_VECTORING_INFO_FIELD, idt_vectoring_info_field,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+	EVMCS1_FIELD(IDT_VECTORING_ERROR_CODE, idt_vectoring_error_code,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+	EVMCS1_FIELD(VM_EXIT_INSTRUCTION_LEN, vm_exit_instruction_len,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+	EVMCS1_FIELD(VMX_INSTRUCTION_INFO, vmx_instruction_info,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE),
+
+	/* No mask defined in the spec (not used) */
+	EVMCS1_FIELD(PAGE_FAULT_ERROR_CODE_MASK, page_fault_error_code_mask,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+	EVMCS1_FIELD(PAGE_FAULT_ERROR_CODE_MATCH, page_fault_error_code_match,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+	EVMCS1_FIELD(CR3_TARGET_COUNT, cr3_target_count,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+	EVMCS1_FIELD(VM_EXIT_MSR_STORE_COUNT, vm_exit_msr_store_count,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+	EVMCS1_FIELD(VM_EXIT_MSR_LOAD_COUNT, vm_exit_msr_load_count,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+	EVMCS1_FIELD(VM_ENTRY_MSR_LOAD_COUNT, vm_entry_msr_load_count,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL),
+
+	/* 16 bit rw */
+	EVMCS1_FIELD(HOST_ES_SELECTOR, host_es_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(HOST_CS_SELECTOR, host_cs_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(HOST_SS_SELECTOR, host_ss_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(HOST_DS_SELECTOR, host_ds_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(HOST_FS_SELECTOR, host_fs_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(HOST_GS_SELECTOR, host_gs_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(HOST_TR_SELECTOR, host_tr_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1),
+	EVMCS1_FIELD(GUEST_ES_SELECTOR, guest_es_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_CS_SELECTOR, guest_cs_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_SS_SELECTOR, guest_ss_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_DS_SELECTOR, guest_ds_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_FS_SELECTOR, guest_fs_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_GS_SELECTOR, guest_gs_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_LDTR_SELECTOR, guest_ldtr_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(GUEST_TR_SELECTOR, guest_tr_selector,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2),
+	EVMCS1_FIELD(VIRTUAL_PROCESSOR_ID, virtual_processor_id,
+		     HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT),
+};
+
+static __always_inline int get_evmcs_offset(unsigned long field,
+					    u16 *clean_field)
+{
+	unsigned int index = ROL16(field, 6);
+	const struct evmcs_field *evmcs_field;
+
+	if (unlikely(index >= ARRAY_SIZE(vmcs_field_to_evmcs_1))) {
+		WARN_ONCE(1, "KVM: accessing unsupported EVMCS field %lx\n",
+			  field);
+		return -ENOENT;
+	}
+
+	evmcs_field = &vmcs_field_to_evmcs_1[index];
+
+	if (clean_field)
+		*clean_field = evmcs_field->clean_field;
+
+	return evmcs_field->offset;
+}
+
+#undef ROL16
+
+#endif /* __KVM_X86_VMX_EVMCS_H */
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 18b5ca7a3197..51ecd381793b 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -102,6 +102,8 @@ static void update_cr8_intercept(struct kvm_vcpu *vcpu);
 static void process_nmi(struct kvm_vcpu *vcpu);
 static void enter_smm(struct kvm_vcpu *vcpu);
 static void __kvm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags);
+static void store_regs(struct kvm_vcpu *vcpu);
+static int sync_regs(struct kvm_vcpu *vcpu);
 
 struct kvm_x86_ops *kvm_x86_ops __read_mostly;
 EXPORT_SYMBOL_GPL(kvm_x86_ops);
@@ -140,6 +142,13 @@ module_param(lapic_timer_advance_ns, uint, S_IRUGO | S_IWUSR);
 static bool __read_mostly vector_hashing = true;
 module_param(vector_hashing, bool, S_IRUGO);
 
+bool __read_mostly enable_vmware_backdoor = false;
+module_param(enable_vmware_backdoor, bool, S_IRUGO);
+EXPORT_SYMBOL_GPL(enable_vmware_backdoor);
+
+static bool __read_mostly force_emulation_prefix = false;
+module_param(force_emulation_prefix, bool, S_IRUGO);
+
 #define KVM_NR_SHARED_MSRS 16
 
 struct kvm_shared_msrs_global {
@@ -1032,7 +1041,11 @@ static u32 emulated_msrs[] = {
 	HV_X64_MSR_VP_RUNTIME,
 	HV_X64_MSR_SCONTROL,
 	HV_X64_MSR_STIMER0_CONFIG,
-	HV_X64_MSR_APIC_ASSIST_PAGE, MSR_KVM_ASYNC_PF_EN, MSR_KVM_STEAL_TIME,
+	HV_X64_MSR_VP_ASSIST_PAGE,
+	HV_X64_MSR_REENLIGHTENMENT_CONTROL, HV_X64_MSR_TSC_EMULATION_CONTROL,
+	HV_X64_MSR_TSC_EMULATION_STATUS,
+
+	MSR_KVM_ASYNC_PF_EN, MSR_KVM_STEAL_TIME,
 	MSR_KVM_PV_EOI_EN,
 
 	MSR_IA32_TSC_ADJUST,
@@ -1054,6 +1067,25 @@ static unsigned num_emulated_msrs;
  * can be used by a hypervisor to validate requested CPU features.
  */
 static u32 msr_based_features[] = {
+	MSR_IA32_VMX_BASIC,
+	MSR_IA32_VMX_TRUE_PINBASED_CTLS,
+	MSR_IA32_VMX_PINBASED_CTLS,
+	MSR_IA32_VMX_TRUE_PROCBASED_CTLS,
+	MSR_IA32_VMX_PROCBASED_CTLS,
+	MSR_IA32_VMX_TRUE_EXIT_CTLS,
+	MSR_IA32_VMX_EXIT_CTLS,
+	MSR_IA32_VMX_TRUE_ENTRY_CTLS,
+	MSR_IA32_VMX_ENTRY_CTLS,
+	MSR_IA32_VMX_MISC,
+	MSR_IA32_VMX_CR0_FIXED0,
+	MSR_IA32_VMX_CR0_FIXED1,
+	MSR_IA32_VMX_CR4_FIXED0,
+	MSR_IA32_VMX_CR4_FIXED1,
+	MSR_IA32_VMX_VMCS_ENUM,
+	MSR_IA32_VMX_PROCBASED_CTLS2,
+	MSR_IA32_VMX_EPT_VPID_CAP,
+	MSR_IA32_VMX_VMFUNC,
+
 	MSR_F10H_DECFG,
 	MSR_IA32_UCODE_REV,
 };
@@ -1458,7 +1490,7 @@ static void kvm_track_tsc_matching(struct kvm_vcpu *vcpu)
 
 static void update_ia32_tsc_adjust_msr(struct kvm_vcpu *vcpu, s64 offset)
 {
-	u64 curr_offset = vcpu->arch.tsc_offset;
+	u64 curr_offset = kvm_x86_ops->read_l1_tsc_offset(vcpu);
 	vcpu->arch.ia32_tsc_adjust_msr += offset - curr_offset;
 }
 
@@ -1500,7 +1532,9 @@ static u64 kvm_compute_tsc_offset(struct kvm_vcpu *vcpu, u64 target_tsc)
 
 u64 kvm_read_l1_tsc(struct kvm_vcpu *vcpu, u64 host_tsc)
 {
-	return vcpu->arch.tsc_offset + kvm_scale_tsc(vcpu, host_tsc);
+	u64 tsc_offset = kvm_x86_ops->read_l1_tsc_offset(vcpu);
+
+	return tsc_offset + kvm_scale_tsc(vcpu, host_tsc);
 }
 EXPORT_SYMBOL_GPL(kvm_read_l1_tsc);
 
@@ -2330,6 +2364,9 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 			return 1;
 		vcpu->arch.smbase = data;
 		break;
+	case MSR_IA32_TSC:
+		kvm_write_tsc(vcpu, msr_info);
+		break;
 	case MSR_SMI_COUNT:
 		if (!msr_info->host_initiated)
 			return 1;
@@ -2432,6 +2469,9 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 	case HV_X64_MSR_CRASH_P0 ... HV_X64_MSR_CRASH_P4:
 	case HV_X64_MSR_CRASH_CTL:
 	case HV_X64_MSR_STIMER0_CONFIG ... HV_X64_MSR_STIMER3_COUNT:
+	case HV_X64_MSR_REENLIGHTENMENT_CONTROL:
+	case HV_X64_MSR_TSC_EMULATION_CONTROL:
+	case HV_X64_MSR_TSC_EMULATION_STATUS:
 		return kvm_hv_set_msr_common(vcpu, msr, data,
 					     msr_info->host_initiated);
 	case MSR_IA32_BBL_CR_CTL3:
@@ -2558,6 +2598,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 	case MSR_AMD64_DC_CFG:
 		msr_info->data = 0;
 		break;
+	case MSR_F15H_PERF_CTL0 ... MSR_F15H_PERF_CTR5:
 	case MSR_K7_EVNTSEL0 ... MSR_K7_EVNTSEL3:
 	case MSR_K7_PERFCTR0 ... MSR_K7_PERFCTR3:
 	case MSR_P6_PERFCTR0 ... MSR_P6_PERFCTR1:
@@ -2569,6 +2610,9 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 	case MSR_IA32_UCODE_REV:
 		msr_info->data = vcpu->arch.microcode_version;
 		break;
+	case MSR_IA32_TSC:
+		msr_info->data = kvm_scale_tsc(vcpu, rdtsc()) + vcpu->arch.tsc_offset;
+		break;
 	case MSR_MTRRcap:
 	case 0x200 ... 0x2ff:
 		return kvm_mtrr_get_msr(vcpu, msr_info->index, &msr_info->data);
@@ -2661,6 +2705,9 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 	case HV_X64_MSR_CRASH_P0 ... HV_X64_MSR_CRASH_P4:
 	case HV_X64_MSR_CRASH_CTL:
 	case HV_X64_MSR_STIMER0_CONFIG ... HV_X64_MSR_STIMER3_COUNT:
+	case HV_X64_MSR_REENLIGHTENMENT_CONTROL:
+	case HV_X64_MSR_TSC_EMULATION_CONTROL:
+	case HV_X64_MSR_TSC_EMULATION_STATUS:
 		return kvm_hv_get_msr_common(vcpu,
 					     msr_info->index, &msr_info->data);
 		break;
@@ -2777,9 +2824,16 @@ out:
 	return r;
 }
 
+static inline bool kvm_can_mwait_in_guest(void)
+{
+	return boot_cpu_has(X86_FEATURE_MWAIT) &&
+		!boot_cpu_has_bug(X86_BUG_MONITOR) &&
+		boot_cpu_has(X86_FEATURE_ARAT);
+}
+
 int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 {
-	int r;
+	int r = 0;
 
 	switch (ext) {
 	case KVM_CAP_IRQCHIP:
@@ -2809,6 +2863,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_HYPERV_SYNIC:
 	case KVM_CAP_HYPERV_SYNIC2:
 	case KVM_CAP_HYPERV_VP_INDEX:
+	case KVM_CAP_HYPERV_EVENTFD:
 	case KVM_CAP_PCI_SEGMENT:
 	case KVM_CAP_DEBUGREGS:
 	case KVM_CAP_X86_ROBUST_SINGLESTEP:
@@ -2828,11 +2883,16 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_GET_MSR_FEATURES:
 		r = 1;
 		break;
+	case KVM_CAP_SYNC_REGS:
+		r = KVM_SYNC_X86_VALID_FIELDS;
+		break;
 	case KVM_CAP_ADJUST_CLOCK:
 		r = KVM_CLOCK_TSC_STABLE;
 		break;
-	case KVM_CAP_X86_GUEST_MWAIT:
-		r = kvm_mwait_in_guest();
+	case KVM_CAP_X86_DISABLE_EXITS:
+		r |=  KVM_X86_DISABLE_EXITS_HTL | KVM_X86_DISABLE_EXITS_PAUSE;
+		if(kvm_can_mwait_in_guest())
+			r |= KVM_X86_DISABLE_EXITS_MWAIT;
 		break;
 	case KVM_CAP_X86_SMM:
 		/* SMBASE is usually relocated above 1M on modern chipsets,
@@ -2873,7 +2933,6 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 		r = KVM_X2APIC_API_VALID_FLAGS;
 		break;
 	default:
-		r = 0;
 		break;
 	}
 	return r;
@@ -3265,7 +3324,7 @@ static void kvm_vcpu_ioctl_x86_get_vcpu_events(struct kvm_vcpu *vcpu,
 	events->exception.error_code = vcpu->arch.exception.error_code;
 
 	events->interrupt.injected =
-		vcpu->arch.interrupt.pending && !vcpu->arch.interrupt.soft;
+		vcpu->arch.interrupt.injected && !vcpu->arch.interrupt.soft;
 	events->interrupt.nr = vcpu->arch.interrupt.nr;
 	events->interrupt.soft = 0;
 	events->interrupt.shadow = kvm_x86_ops->get_interrupt_shadow(vcpu);
@@ -3318,7 +3377,7 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,
 	vcpu->arch.exception.has_error_code = events->exception.has_error_code;
 	vcpu->arch.exception.error_code = events->exception.error_code;
 
-	vcpu->arch.interrupt.pending = events->interrupt.injected;
+	vcpu->arch.interrupt.injected = events->interrupt.injected;
 	vcpu->arch.interrupt.nr = events->interrupt.nr;
 	vcpu->arch.interrupt.soft = events->interrupt.soft;
 	if (events->flags & KVM_VCPUEVENT_VALID_SHADOW)
@@ -3917,8 +3976,7 @@ static int kvm_vm_ioctl_set_tss_addr(struct kvm *kvm, unsigned long addr)
 static int kvm_vm_ioctl_set_identity_map_addr(struct kvm *kvm,
 					      u64 ident_addr)
 {
-	kvm->arch.ept_identity_map_addr = ident_addr;
-	return 0;
+	return kvm_x86_ops->set_identity_map_addr(kvm, ident_addr);
 }
 
 static int kvm_vm_ioctl_set_nr_mmu_pages(struct kvm *kvm,
@@ -4178,6 +4236,20 @@ split_irqchip_unlock:
 
 		r = 0;
 		break;
+	case KVM_CAP_X86_DISABLE_EXITS:
+		r = -EINVAL;
+		if (cap->args[0] & ~KVM_X86_DISABLE_VALID_EXITS)
+			break;
+
+		if ((cap->args[0] & KVM_X86_DISABLE_EXITS_MWAIT) &&
+			kvm_can_mwait_in_guest())
+			kvm->arch.mwait_in_guest = true;
+		if (cap->args[0] & KVM_X86_DISABLE_EXITS_HTL)
+			kvm->arch.hlt_in_guest = true;
+		if (cap->args[0] & KVM_X86_DISABLE_EXITS_PAUSE)
+			kvm->arch.pause_in_guest = true;
+		r = 0;
+		break;
 	default:
 		r = -EINVAL;
 		break;
@@ -4482,6 +4554,15 @@ set_identity_unlock:
 			r = kvm_x86_ops->mem_enc_unreg_region(kvm, &region);
 		break;
 	}
+	case KVM_HYPERV_EVENTFD: {
+		struct kvm_hyperv_eventfd hvevfd;
+
+		r = -EFAULT;
+		if (copy_from_user(&hvevfd, argp, sizeof(hvevfd)))
+			goto out;
+		r = kvm_vm_ioctl_hv_eventfd(kvm, &hvevfd);
+		break;
+	}
 	default:
 		r = -ENOTTY;
 	}
@@ -4771,6 +4852,30 @@ out:
 }
 EXPORT_SYMBOL_GPL(kvm_write_guest_virt_system);
 
+int handle_ud(struct kvm_vcpu *vcpu)
+{
+	int emul_type = EMULTYPE_TRAP_UD;
+	enum emulation_result er;
+	char sig[5]; /* ud2; .ascii "kvm" */
+	struct x86_exception e;
+
+	if (force_emulation_prefix &&
+	    kvm_read_guest_virt(&vcpu->arch.emulate_ctxt,
+				kvm_get_linear_rip(vcpu), sig, sizeof(sig), &e) == 0 &&
+	    memcmp(sig, "\xf\xbkvm", sizeof(sig)) == 0) {
+		kvm_rip_write(vcpu, kvm_rip_read(vcpu) + sizeof(sig));
+		emul_type = 0;
+	}
+
+	er = emulate_instruction(vcpu, emul_type);
+	if (er == EMULATE_USER_EXIT)
+		return 0;
+	if (er != EMULATE_DONE)
+		kvm_queue_exception(vcpu, UD_VECTOR);
+	return 1;
+}
+EXPORT_SYMBOL_GPL(handle_ud);
+
 static int vcpu_is_mmio_gpa(struct kvm_vcpu *vcpu, unsigned long gva,
 			    gpa_t gpa, bool write)
 {
@@ -5612,27 +5717,27 @@ int kvm_inject_realmode_interrupt(struct kvm_vcpu *vcpu, int irq, int inc_eip)
 	kvm_rip_write(vcpu, ctxt->eip);
 	kvm_set_rflags(vcpu, ctxt->eflags);
 
-	if (irq == NMI_VECTOR)
-		vcpu->arch.nmi_pending = 0;
-	else
-		vcpu->arch.interrupt.pending = false;
-
 	return EMULATE_DONE;
 }
 EXPORT_SYMBOL_GPL(kvm_inject_realmode_interrupt);
 
-static int handle_emulation_failure(struct kvm_vcpu *vcpu)
+static int handle_emulation_failure(struct kvm_vcpu *vcpu, int emulation_type)
 {
 	int r = EMULATE_DONE;
 
 	++vcpu->stat.insn_emulation_fail;
 	trace_kvm_emulate_insn_failed(vcpu);
+
+	if (emulation_type & EMULTYPE_NO_UD_ON_FAIL)
+		return EMULATE_FAIL;
+
 	if (!is_guest_mode(vcpu) && kvm_x86_ops->get_cpl(vcpu) == 0) {
 		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_EMULATION;
 		vcpu->run->internal.ndata = 0;
 		r = EMULATE_USER_EXIT;
 	}
+
 	kvm_queue_exception(vcpu, UD_VECTOR);
 
 	return r;
@@ -5876,6 +5981,37 @@ static bool kvm_vcpu_check_breakpoint(struct kvm_vcpu *vcpu, int *r)
 	return false;
 }
 
+static bool is_vmware_backdoor_opcode(struct x86_emulate_ctxt *ctxt)
+{
+	switch (ctxt->opcode_len) {
+	case 1:
+		switch (ctxt->b) {
+		case 0xe4:	/* IN */
+		case 0xe5:
+		case 0xec:
+		case 0xed:
+		case 0xe6:	/* OUT */
+		case 0xe7:
+		case 0xee:
+		case 0xef:
+		case 0x6c:	/* INS */
+		case 0x6d:
+		case 0x6e:	/* OUTS */
+		case 0x6f:
+			return true;
+		}
+		break;
+	case 2:
+		switch (ctxt->b) {
+		case 0x33:	/* RDPMC */
+			return true;
+		}
+		break;
+	}
+
+	return false;
+}
+
 int x86_emulate_instruction(struct kvm_vcpu *vcpu,
 			    unsigned long cr2,
 			    int emulation_type,
@@ -5928,10 +6064,14 @@ int x86_emulate_instruction(struct kvm_vcpu *vcpu,
 				return EMULATE_DONE;
 			if (emulation_type & EMULTYPE_SKIP)
 				return EMULATE_FAIL;
-			return handle_emulation_failure(vcpu);
+			return handle_emulation_failure(vcpu, emulation_type);
 		}
 	}
 
+	if ((emulation_type & EMULTYPE_VMWARE) &&
+	    !is_vmware_backdoor_opcode(ctxt))
+		return EMULATE_FAIL;
+
 	if (emulation_type & EMULTYPE_SKIP) {
 		kvm_rip_write(vcpu, ctxt->_eip);
 		if (ctxt->eflags & X86_EFLAGS_RF)
@@ -5963,7 +6103,7 @@ restart:
 					emulation_type))
 			return EMULATE_DONE;
 
-		return handle_emulation_failure(vcpu);
+		return handle_emulation_failure(vcpu, emulation_type);
 	}
 
 	if (ctxt->have_exception) {
@@ -6016,7 +6156,8 @@ restart:
 }
 EXPORT_SYMBOL_GPL(x86_emulate_instruction);
 
-int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size, unsigned short port)
+static int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size,
+			    unsigned short port)
 {
 	unsigned long val = kvm_register_read(vcpu, VCPU_REGS_RAX);
 	int ret = emulator_pio_out_emulated(&vcpu->arch.emulate_ctxt,
@@ -6025,7 +6166,6 @@ int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size, unsigned short port)
 	vcpu->arch.pio.count = 0;
 	return ret;
 }
-EXPORT_SYMBOL_GPL(kvm_fast_pio_out);
 
 static int complete_fast_pio_in(struct kvm_vcpu *vcpu)
 {
@@ -6049,7 +6189,8 @@ static int complete_fast_pio_in(struct kvm_vcpu *vcpu)
 	return 1;
 }
 
-int kvm_fast_pio_in(struct kvm_vcpu *vcpu, int size, unsigned short port)
+static int kvm_fast_pio_in(struct kvm_vcpu *vcpu, int size,
+			   unsigned short port)
 {
 	unsigned long val;
 	int ret;
@@ -6068,7 +6209,21 @@ int kvm_fast_pio_in(struct kvm_vcpu *vcpu, int size, unsigned short port)
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(kvm_fast_pio_in);
+
+int kvm_fast_pio(struct kvm_vcpu *vcpu, int size, unsigned short port, int in)
+{
+	int ret = kvm_skip_emulated_instruction(vcpu);
+
+	/*
+	 * TODO: we might be squashing a KVM_GUESTDBG_SINGLESTEP-triggered
+	 * KVM_EXIT_DEBUG here.
+	 */
+	if (in)
+		return kvm_fast_pio_in(vcpu, size, port) && ret;
+	else
+		return kvm_fast_pio_out(vcpu, size, port) && ret;
+}
+EXPORT_SYMBOL_GPL(kvm_fast_pio);
 
 static int kvmclock_cpu_down_prep(unsigned int cpu)
 {
@@ -6246,7 +6401,8 @@ static void kvm_timer_init(void)
 			  kvmclock_cpu_online, kvmclock_cpu_down_prep);
 }
 
-static DEFINE_PER_CPU(struct kvm_vcpu *, current_vcpu);
+DEFINE_PER_CPU(struct kvm_vcpu *, current_vcpu);
+EXPORT_PER_CPU_SYMBOL_GPL(current_vcpu);
 
 int kvm_is_in_guest(void)
 {
@@ -6279,18 +6435,6 @@ static struct perf_guest_info_callbacks kvm_guest_cbs = {
 	.get_guest_ip		= kvm_get_guest_ip,
 };
 
-void kvm_before_handle_nmi(struct kvm_vcpu *vcpu)
-{
-	__this_cpu_write(current_vcpu, vcpu);
-}
-EXPORT_SYMBOL_GPL(kvm_before_handle_nmi);
-
-void kvm_after_handle_nmi(struct kvm_vcpu *vcpu)
-{
-	__this_cpu_write(current_vcpu, NULL);
-}
-EXPORT_SYMBOL_GPL(kvm_after_handle_nmi);
-
 static void kvm_set_mmio_spte_mask(void)
 {
 	u64 mask;
@@ -6644,27 +6788,36 @@ static int inject_pending_event(struct kvm_vcpu *vcpu, bool req_int_win)
 	int r;
 
 	/* try to reinject previous events if any */
-	if (vcpu->arch.exception.injected) {
-		kvm_x86_ops->queue_exception(vcpu);
-		return 0;
-	}
 
+	if (vcpu->arch.exception.injected)
+		kvm_x86_ops->queue_exception(vcpu);
 	/*
-	 * Exceptions must be injected immediately, or the exception
-	 * frame will have the address of the NMI or interrupt handler.
+	 * Do not inject an NMI or interrupt if there is a pending
+	 * exception.  Exceptions and interrupts are recognized at
+	 * instruction boundaries, i.e. the start of an instruction.
+	 * Trap-like exceptions, e.g. #DB, have higher priority than
+	 * NMIs and interrupts, i.e. traps are recognized before an
+	 * NMI/interrupt that's pending on the same instruction.
+	 * Fault-like exceptions, e.g. #GP and #PF, are the lowest
+	 * priority, but are only generated (pended) during instruction
+	 * execution, i.e. a pending fault-like exception means the
+	 * fault occurred on the *previous* instruction and must be
+	 * serviced prior to recognizing any new events in order to
+	 * fully complete the previous instruction.
 	 */
-	if (!vcpu->arch.exception.pending) {
-		if (vcpu->arch.nmi_injected) {
+	else if (!vcpu->arch.exception.pending) {
+		if (vcpu->arch.nmi_injected)
 			kvm_x86_ops->set_nmi(vcpu);
-			return 0;
-		}
-
-		if (vcpu->arch.interrupt.pending) {
+		else if (vcpu->arch.interrupt.injected)
 			kvm_x86_ops->set_irq(vcpu);
-			return 0;
-		}
 	}
 
+	/*
+	 * Call check_nested_events() even if we reinjected a previous event
+	 * in order for caller to determine if it should require immediate-exit
+	 * from L2 to L1 due to pending L1 events which require exit
+	 * from L2 to L1.
+	 */
 	if (is_guest_mode(vcpu) && kvm_x86_ops->check_nested_events) {
 		r = kvm_x86_ops->check_nested_events(vcpu, req_int_win);
 		if (r != 0)
@@ -6677,6 +6830,7 @@ static int inject_pending_event(struct kvm_vcpu *vcpu, bool req_int_win)
 					vcpu->arch.exception.has_error_code,
 					vcpu->arch.exception.error_code);
 
+		WARN_ON_ONCE(vcpu->arch.exception.injected);
 		vcpu->arch.exception.pending = false;
 		vcpu->arch.exception.injected = true;
 
@@ -6691,7 +6845,14 @@ static int inject_pending_event(struct kvm_vcpu *vcpu, bool req_int_win)
 		}
 
 		kvm_x86_ops->queue_exception(vcpu);
-	} else if (vcpu->arch.smi_pending && !is_smm(vcpu) && kvm_x86_ops->smi_allowed(vcpu)) {
+	}
+
+	/* Don't consider new event if we re-injected an event */
+	if (kvm_event_needs_reinjection(vcpu))
+		return 0;
+
+	if (vcpu->arch.smi_pending && !is_smm(vcpu) &&
+	    kvm_x86_ops->smi_allowed(vcpu)) {
 		vcpu->arch.smi_pending = false;
 		++vcpu->arch.smi_count;
 		enter_smm(vcpu);
@@ -6985,8 +7146,6 @@ void kvm_make_scan_ioapic_request(struct kvm *kvm)
 
 static void vcpu_scan_ioapic(struct kvm_vcpu *vcpu)
 {
-	u64 eoi_exit_bitmap[4];
-
 	if (!kvm_apic_hw_enabled(vcpu->arch.apic))
 		return;
 
@@ -6999,6 +7158,20 @@ static void vcpu_scan_ioapic(struct kvm_vcpu *vcpu)
 			kvm_x86_ops->sync_pir_to_irr(vcpu);
 		kvm_ioapic_scan_entry(vcpu, vcpu->arch.ioapic_handled_vectors);
 	}
+
+	if (is_guest_mode(vcpu))
+		vcpu->arch.load_eoi_exitmap_pending = true;
+	else
+		kvm_make_request(KVM_REQ_LOAD_EOI_EXITMAP, vcpu);
+}
+
+static void vcpu_load_eoi_exitmap(struct kvm_vcpu *vcpu)
+{
+	u64 eoi_exit_bitmap[4];
+
+	if (!kvm_apic_hw_enabled(vcpu->arch.apic))
+		return;
+
 	bitmap_or((ulong *)eoi_exit_bitmap, vcpu->arch.ioapic_handled_vectors,
 		  vcpu_to_synic(vcpu)->vec_bitmap, 256);
 	kvm_x86_ops->load_eoi_exitmap(vcpu, eoi_exit_bitmap);
@@ -7113,6 +7286,8 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 		}
 		if (kvm_check_request(KVM_REQ_SCAN_IOAPIC, vcpu))
 			vcpu_scan_ioapic(vcpu);
+		if (kvm_check_request(KVM_REQ_LOAD_EOI_EXITMAP, vcpu))
+			vcpu_load_eoi_exitmap(vcpu);
 		if (kvm_check_request(KVM_REQ_APIC_PAGE_RELOAD, vcpu))
 			kvm_vcpu_reload_apic_access_page(vcpu);
 		if (kvm_check_request(KVM_REQ_HV_CRASH, vcpu)) {
@@ -7291,7 +7466,9 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 
 	kvm_put_guest_xcr0(vcpu);
 
+	kvm_before_interrupt(vcpu);
 	kvm_x86_ops->handle_external_intr(vcpu);
+	kvm_after_interrupt(vcpu);
 
 	++vcpu->stat.exits;
 
@@ -7500,7 +7677,6 @@ static int complete_emulated_mmio(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
-
 int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 {
 	int r;
@@ -7526,6 +7702,17 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 		goto out;
 	}
 
+	if (vcpu->run->kvm_valid_regs & ~KVM_SYNC_X86_VALID_FIELDS) {
+		r = -EINVAL;
+		goto out;
+	}
+
+	if (vcpu->run->kvm_dirty_regs) {
+		r = sync_regs(vcpu);
+		if (r != 0)
+			goto out;
+	}
+
 	/* re-sync apic's tpr */
 	if (!lapic_in_kernel(vcpu)) {
 		if (kvm_set_cr8(vcpu, kvm_run->cr8) != 0) {
@@ -7550,6 +7737,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 
 out:
 	kvm_put_guest_fpu(vcpu);
+	if (vcpu->run->kvm_valid_regs)
+		store_regs(vcpu);
 	post_kvm_run_save(vcpu);
 	kvm_sigset_deactivate(vcpu);
 
@@ -7557,10 +7746,8 @@ out:
 	return r;
 }
 
-int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
+static void __get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 {
-	vcpu_load(vcpu);
-
 	if (vcpu->arch.emulate_regs_need_sync_to_vcpu) {
 		/*
 		 * We are here if userspace calls get_regs() in the middle of
@@ -7593,15 +7780,18 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 
 	regs->rip = kvm_rip_read(vcpu);
 	regs->rflags = kvm_get_rflags(vcpu);
+}
 
+int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
+{
+	vcpu_load(vcpu);
+	__get_regs(vcpu, regs);
 	vcpu_put(vcpu);
 	return 0;
 }
 
-int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
+static void __set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 {
-	vcpu_load(vcpu);
-
 	vcpu->arch.emulate_regs_need_sync_from_vcpu = true;
 	vcpu->arch.emulate_regs_need_sync_to_vcpu = false;
 
@@ -7630,7 +7820,12 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 	vcpu->arch.exception.pending = false;
 
 	kvm_make_request(KVM_REQ_EVENT, vcpu);
+}
 
+int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
+{
+	vcpu_load(vcpu);
+	__set_regs(vcpu, regs);
 	vcpu_put(vcpu);
 	return 0;
 }
@@ -7645,13 +7840,10 @@ void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l)
 }
 EXPORT_SYMBOL_GPL(kvm_get_cs_db_l_bits);
 
-int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
-				  struct kvm_sregs *sregs)
+static void __get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
 {
 	struct desc_ptr dt;
 
-	vcpu_load(vcpu);
-
 	kvm_get_segment(vcpu, &sregs->cs, VCPU_SREG_CS);
 	kvm_get_segment(vcpu, &sregs->ds, VCPU_SREG_DS);
 	kvm_get_segment(vcpu, &sregs->es, VCPU_SREG_ES);
@@ -7679,10 +7871,16 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
 
 	memset(sregs->interrupt_bitmap, 0, sizeof sregs->interrupt_bitmap);
 
-	if (vcpu->arch.interrupt.pending && !vcpu->arch.interrupt.soft)
+	if (vcpu->arch.interrupt.injected && !vcpu->arch.interrupt.soft)
 		set_bit(vcpu->arch.interrupt.nr,
 			(unsigned long *)sregs->interrupt_bitmap);
+}
 
+int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
+				  struct kvm_sregs *sregs)
+{
+	vcpu_load(vcpu);
+	__get_sregs(vcpu, sregs);
 	vcpu_put(vcpu);
 	return 0;
 }
@@ -7754,7 +7952,7 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index,
 }
 EXPORT_SYMBOL_GPL(kvm_task_switch);
 
-int kvm_valid_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+static int kvm_valid_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
 {
 	if ((sregs->efer & EFER_LME) && (sregs->cr0 & X86_CR0_PG)) {
 		/*
@@ -7777,8 +7975,7 @@ int kvm_valid_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
 	return 0;
 }
 
-int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
-				  struct kvm_sregs *sregs)
+static int __set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
 {
 	struct msr_data apic_base_msr;
 	int mmu_reset_needed = 0;
@@ -7786,8 +7983,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 	struct desc_ptr dt;
 	int ret = -EINVAL;
 
-	vcpu_load(vcpu);
-
 	if (!guest_cpuid_has(vcpu, X86_FEATURE_XSAVE) &&
 			(sregs->cr4 & X86_CR4_OSXSAVE))
 		goto out;
@@ -7866,6 +8061,16 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 
 	ret = 0;
 out:
+	return ret;
+}
+
+int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
+				  struct kvm_sregs *sregs)
+{
+	int ret;
+
+	vcpu_load(vcpu);
+	ret = __set_sregs(vcpu, sregs);
 	vcpu_put(vcpu);
 	return ret;
 }
@@ -7992,6 +8197,45 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 	return 0;
 }
 
+static void store_regs(struct kvm_vcpu *vcpu)
+{
+	BUILD_BUG_ON(sizeof(struct kvm_sync_regs) > SYNC_REGS_SIZE_BYTES);
+
+	if (vcpu->run->kvm_valid_regs & KVM_SYNC_X86_REGS)
+		__get_regs(vcpu, &vcpu->run->s.regs.regs);
+
+	if (vcpu->run->kvm_valid_regs & KVM_SYNC_X86_SREGS)
+		__get_sregs(vcpu, &vcpu->run->s.regs.sregs);
+
+	if (vcpu->run->kvm_valid_regs & KVM_SYNC_X86_EVENTS)
+		kvm_vcpu_ioctl_x86_get_vcpu_events(
+				vcpu, &vcpu->run->s.regs.events);
+}
+
+static int sync_regs(struct kvm_vcpu *vcpu)
+{
+	if (vcpu->run->kvm_dirty_regs & ~KVM_SYNC_X86_VALID_FIELDS)
+		return -EINVAL;
+
+	if (vcpu->run->kvm_dirty_regs & KVM_SYNC_X86_REGS) {
+		__set_regs(vcpu, &vcpu->run->s.regs.regs);
+		vcpu->run->kvm_dirty_regs &= ~KVM_SYNC_X86_REGS;
+	}
+	if (vcpu->run->kvm_dirty_regs & KVM_SYNC_X86_SREGS) {
+		if (__set_sregs(vcpu, &vcpu->run->s.regs.sregs))
+			return -EINVAL;
+		vcpu->run->kvm_dirty_regs &= ~KVM_SYNC_X86_SREGS;
+	}
+	if (vcpu->run->kvm_dirty_regs & KVM_SYNC_X86_EVENTS) {
+		if (kvm_vcpu_ioctl_x86_set_vcpu_events(
+				vcpu, &vcpu->run->s.regs.events))
+			return -EINVAL;
+		vcpu->run->kvm_dirty_regs &= ~KVM_SYNC_X86_EVENTS;
+	}
+
+	return 0;
+}
+
 static void fx_init(struct kvm_vcpu *vcpu)
 {
 	fpstate_init(&vcpu->arch.guest_fpu.state);
@@ -8447,7 +8691,6 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 
 	raw_spin_lock_init(&kvm->arch.tsc_write_lock);
 	mutex_init(&kvm->arch.apic_map_lock);
-	mutex_init(&kvm->arch.hyperv.hv_lock);
 	spin_lock_init(&kvm->arch.pvclock_gtod_sync_lock);
 
 	kvm->arch.kvmclock_offset = -ktime_get_boot_ns();
@@ -8456,6 +8699,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 	INIT_DELAYED_WORK(&kvm->arch.kvmclock_update_work, kvmclock_update_fn);
 	INIT_DELAYED_WORK(&kvm->arch.kvmclock_sync_work, kvmclock_sync_fn);
 
+	kvm_hv_init_vm(kvm);
 	kvm_page_track_init(kvm);
 	kvm_mmu_init_vm(kvm);
 
@@ -8586,6 +8830,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
 	kvfree(rcu_dereference_check(kvm->arch.apic_map, 1));
 	kvm_mmu_uninit_vm(kvm);
 	kvm_page_track_cleanup(kvm);
+	kvm_hv_destroy_vm(kvm);
 }
 
 void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
index b91215d1fd80..7d35ce672989 100644
--- a/arch/x86/kvm/x86.h
+++ b/arch/x86/kvm/x86.h
@@ -2,12 +2,48 @@
 #ifndef ARCH_X86_KVM_X86_H
 #define ARCH_X86_KVM_X86_H
 
-#include <asm/processor.h>
-#include <asm/mwait.h>
 #include <linux/kvm_host.h>
 #include <asm/pvclock.h>
 #include "kvm_cache_regs.h"
 
+#define KVM_DEFAULT_PLE_GAP		128
+#define KVM_VMX_DEFAULT_PLE_WINDOW	4096
+#define KVM_DEFAULT_PLE_WINDOW_GROW	2
+#define KVM_DEFAULT_PLE_WINDOW_SHRINK	0
+#define KVM_VMX_DEFAULT_PLE_WINDOW_MAX	UINT_MAX
+#define KVM_SVM_DEFAULT_PLE_WINDOW_MAX	USHRT_MAX
+#define KVM_SVM_DEFAULT_PLE_WINDOW	3000
+
+static inline unsigned int __grow_ple_window(unsigned int val,
+		unsigned int base, unsigned int modifier, unsigned int max)
+{
+	u64 ret = val;
+
+	if (modifier < 1)
+		return base;
+
+	if (modifier < base)
+		ret *= modifier;
+	else
+		ret += modifier;
+
+	return min(ret, (u64)max);
+}
+
+static inline unsigned int __shrink_ple_window(unsigned int val,
+		unsigned int base, unsigned int modifier, unsigned int min)
+{
+	if (modifier < 1)
+		return base;
+
+	if (modifier < base)
+		val /= modifier;
+	else
+		val -= modifier;
+
+	return max(val, min);
+}
+
 #define MSR_IA32_CR_PAT_DEFAULT  0x0007040600070406ULL
 
 static inline void kvm_clear_exception_queue(struct kvm_vcpu *vcpu)
@@ -19,19 +55,19 @@ static inline void kvm_clear_exception_queue(struct kvm_vcpu *vcpu)
 static inline void kvm_queue_interrupt(struct kvm_vcpu *vcpu, u8 vector,
 	bool soft)
 {
-	vcpu->arch.interrupt.pending = true;
+	vcpu->arch.interrupt.injected = true;
 	vcpu->arch.interrupt.soft = soft;
 	vcpu->arch.interrupt.nr = vector;
 }
 
 static inline void kvm_clear_interrupt_queue(struct kvm_vcpu *vcpu)
 {
-	vcpu->arch.interrupt.pending = false;
+	vcpu->arch.interrupt.injected = false;
 }
 
 static inline bool kvm_event_needs_reinjection(struct kvm_vcpu *vcpu)
 {
-	return vcpu->arch.exception.injected || vcpu->arch.interrupt.pending ||
+	return vcpu->arch.exception.injected || vcpu->arch.interrupt.injected ||
 		vcpu->arch.nmi_injected;
 }
 
@@ -205,8 +241,6 @@ static inline bool kvm_check_has_quirk(struct kvm *kvm, u64 quirk)
 	return !(kvm->arch.disabled_quirks & quirk);
 }
 
-void kvm_before_handle_nmi(struct kvm_vcpu *vcpu);
-void kvm_after_handle_nmi(struct kvm_vcpu *vcpu);
 void kvm_set_pending_timer(struct kvm_vcpu *vcpu);
 int kvm_inject_realmode_interrupt(struct kvm_vcpu *vcpu, int irq, int inc_eip);
 
@@ -221,6 +255,8 @@ int kvm_write_guest_virt_system(struct x86_emulate_ctxt *ctxt,
 	gva_t addr, void *val, unsigned int bytes,
 	struct x86_exception *exception);
 
+int handle_ud(struct kvm_vcpu *vcpu);
+
 void kvm_vcpu_mtrr_init(struct kvm_vcpu *vcpu);
 u8 kvm_mtrr_get_guest_memory_type(struct kvm_vcpu *vcpu, gfn_t gfn);
 bool kvm_mtrr_valid(struct kvm_vcpu *vcpu, u32 msr, u64 data);
@@ -242,6 +278,8 @@ extern unsigned int min_timer_period_us;
 
 extern unsigned int lapic_timer_advance_ns;
 
+extern bool enable_vmware_backdoor;
+
 extern struct static_key kvm_no_apic_vcpu;
 
 static inline u64 nsec_to_cycles(struct kvm_vcpu *vcpu, u64 nsec)
@@ -264,10 +302,38 @@ static inline u64 nsec_to_cycles(struct kvm_vcpu *vcpu, u64 nsec)
 	    __rem;						\
 	 })
 
-static inline bool kvm_mwait_in_guest(void)
+#define KVM_X86_DISABLE_EXITS_MWAIT          (1 << 0)
+#define KVM_X86_DISABLE_EXITS_HTL            (1 << 1)
+#define KVM_X86_DISABLE_EXITS_PAUSE          (1 << 2)
+#define KVM_X86_DISABLE_VALID_EXITS          (KVM_X86_DISABLE_EXITS_MWAIT | \
+                                              KVM_X86_DISABLE_EXITS_HTL | \
+                                              KVM_X86_DISABLE_EXITS_PAUSE)
+
+static inline bool kvm_mwait_in_guest(struct kvm *kvm)
+{
+	return kvm->arch.mwait_in_guest;
+}
+
+static inline bool kvm_hlt_in_guest(struct kvm *kvm)
+{
+	return kvm->arch.hlt_in_guest;
+}
+
+static inline bool kvm_pause_in_guest(struct kvm *kvm)
+{
+	return kvm->arch.pause_in_guest;
+}
+
+DECLARE_PER_CPU(struct kvm_vcpu *, current_vcpu);
+
+static inline void kvm_before_interrupt(struct kvm_vcpu *vcpu)
+{
+	__this_cpu_write(current_vcpu, vcpu);
+}
+
+static inline void kvm_after_interrupt(struct kvm_vcpu *vcpu)
 {
-	return boot_cpu_has(X86_FEATURE_MWAIT) &&
-		!boot_cpu_has_bug(X86_BUG_MONITOR);
+	__this_cpu_write(current_vcpu, NULL);
 }
 
 #endif
diff --git a/arch/x86/mm/cpu_entry_area.c b/arch/x86/mm/cpu_entry_area.c
index 476d810639a8..b45f5aaefd74 100644
--- a/arch/x86/mm/cpu_entry_area.c
+++ b/arch/x86/mm/cpu_entry_area.c
@@ -27,8 +27,20 @@ EXPORT_SYMBOL(get_cpu_entry_area);
 void cea_set_pte(void *cea_vaddr, phys_addr_t pa, pgprot_t flags)
 {
 	unsigned long va = (unsigned long) cea_vaddr;
+	pte_t pte = pfn_pte(pa >> PAGE_SHIFT, flags);
 
-	set_pte_vaddr(va, pfn_pte(pa >> PAGE_SHIFT, flags));
+	/*
+	 * The cpu_entry_area is shared between the user and kernel
+	 * page tables.  All of its ptes can safely be global.
+	 * _PAGE_GLOBAL gets reused to help indicate PROT_NONE for
+	 * non-present PTEs, so be careful not to set it in that
+	 * case to avoid confusion.
+	 */
+	if (boot_cpu_has(X86_FEATURE_PGE) &&
+	    (pgprot_val(flags) & _PAGE_PRESENT))
+		pte = pte_set_flags(pte, _PAGE_GLOBAL);
+
+	set_pte_vaddr(va, pte);
 }
 
 static void __init
diff --git a/arch/x86/mm/ident_map.c b/arch/x86/mm/ident_map.c
index 9aa22be8331e..a2f0c7e20fb0 100644
--- a/arch/x86/mm/ident_map.c
+++ b/arch/x86/mm/ident_map.c
@@ -98,6 +98,9 @@ int kernel_ident_mapping_init(struct x86_mapping_info *info, pgd_t *pgd_page,
 	if (!info->kernpg_flag)
 		info->kernpg_flag = _KERNPG_TABLE;
 
+	/* Filter out unsupported __PAGE_KERNEL_* bits: */
+	info->kernpg_flag &= __default_kernel_pte_mask;
+
 	for (; addr < end; addr = next) {
 		pgd_t *pgd = pgd_page + pgd_index(addr);
 		p4d_t *p4d;
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 82f5252c723a..fec82b577c18 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -161,12 +161,6 @@ struct map_range {
 
 static int page_size_mask;
 
-static void enable_global_pages(void)
-{
-	if (!static_cpu_has(X86_FEATURE_PTI))
-		__supported_pte_mask |= _PAGE_GLOBAL;
-}
-
 static void __init probe_page_size_mask(void)
 {
 	/*
@@ -187,9 +181,15 @@ static void __init probe_page_size_mask(void)
 	__supported_pte_mask &= ~_PAGE_GLOBAL;
 	if (boot_cpu_has(X86_FEATURE_PGE)) {
 		cr4_set_bits_and_update_boot(X86_CR4_PGE);
-		enable_global_pages();
+		__supported_pte_mask |= _PAGE_GLOBAL;
 	}
 
+	/* By the default is everything supported: */
+	__default_kernel_pte_mask = __supported_pte_mask;
+	/* Except when with PTI where the kernel is mostly non-Global: */
+	if (cpu_feature_enabled(X86_FEATURE_PTI))
+		__default_kernel_pte_mask &= ~_PAGE_GLOBAL;
+
 	/* Enable 1 GB linear kernel mappings if available: */
 	if (direct_gbpages && boot_cpu_has(X86_FEATURE_GBPAGES)) {
 		printk(KERN_INFO "Using GB pages for direct mapping\n");
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 396e1f0151ac..c893c6a3d707 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -558,8 +558,14 @@ static void __init pagetable_init(void)
 	permanent_kmaps_init(pgd_base);
 }
 
-pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL);
+#define DEFAULT_PTE_MASK ~(_PAGE_NX | _PAGE_GLOBAL)
+/* Bits supported by the hardware: */
+pteval_t __supported_pte_mask __read_mostly = DEFAULT_PTE_MASK;
+/* Bits allowed in normal kernel mappings: */
+pteval_t __default_kernel_pte_mask __read_mostly = DEFAULT_PTE_MASK;
 EXPORT_SYMBOL_GPL(__supported_pte_mask);
+/* Used in PAGE_KERNEL_* macros which are reasonably used out-of-tree: */
+EXPORT_SYMBOL(__default_kernel_pte_mask);
 
 /* user-defined highmem size */
 static unsigned int highmem_pages = -1;
@@ -778,6 +784,7 @@ void __init mem_init(void)
 	free_all_bootmem();
 
 	after_bootmem = 1;
+	x86_init.hyper.init_after_bootmem();
 
 	mem_init_print_info(NULL);
 	printk(KERN_INFO "virtual kernel memory layout:\n"
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 45241de66785..0a400606dea0 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -65,8 +65,13 @@
  * around without checking the pgd every time.
  */
 
+/* Bits supported by the hardware: */
 pteval_t __supported_pte_mask __read_mostly = ~0;
+/* Bits allowed in normal kernel mappings: */
+pteval_t __default_kernel_pte_mask __read_mostly = ~0;
 EXPORT_SYMBOL_GPL(__supported_pte_mask);
+/* Used in PAGE_KERNEL_* macros which are reasonably used out-of-tree: */
+EXPORT_SYMBOL(__default_kernel_pte_mask);
 
 int force_personality32;
 
@@ -1185,6 +1190,7 @@ void __init mem_init(void)
 	/* this will put all memory onto the freelists */
 	free_all_bootmem();
 	after_bootmem = 1;
+	x86_init.hyper.init_after_bootmem();
 
 	/*
 	 * Must be done after boot memory is put on freelist, because here we
@@ -1285,6 +1291,12 @@ void mark_rodata_ro(void)
 			(unsigned long) __va(__pa_symbol(_sdata)));
 
 	debug_checkwx();
+
+	/*
+	 * Do this after all of the manipulation of the
+	 * kernel text page tables are complete.
+	 */
+	pti_clone_kernel_text();
 }
 
 int kern_addr_valid(unsigned long addr)
@@ -1328,14 +1340,39 @@ int kern_addr_valid(unsigned long addr)
 	return pfn_valid(pte_pfn(*pte));
 }
 
+/*
+ * Block size is the minimum amount of memory which can be hotplugged or
+ * hotremoved. It must be power of two and must be equal or larger than
+ * MIN_MEMORY_BLOCK_SIZE.
+ */
+#define MAX_BLOCK_SIZE (2UL << 30)
+
+/* Amount of ram needed to start using large blocks */
+#define MEM_SIZE_FOR_LARGE_BLOCK (64UL << 30)
+
 static unsigned long probe_memory_block_size(void)
 {
-	unsigned long bz = MIN_MEMORY_BLOCK_SIZE;
+	unsigned long boot_mem_end = max_pfn << PAGE_SHIFT;
+	unsigned long bz;
+
+	/* If this is UV system, always set 2G block size */
+	if (is_uv_system()) {
+		bz = MAX_BLOCK_SIZE;
+		goto done;
+	}
 
-	/* if system is UV or has 64GB of RAM or more, use large blocks */
-	if (is_uv_system() || ((max_pfn << PAGE_SHIFT) >= (64UL << 30)))
-		bz = 2UL << 30; /* 2GB */
+	/* Use regular block if RAM is smaller than MEM_SIZE_FOR_LARGE_BLOCK */
+	if (boot_mem_end < MEM_SIZE_FOR_LARGE_BLOCK) {
+		bz = MIN_MEMORY_BLOCK_SIZE;
+		goto done;
+	}
 
+	/* Find the largest allowed block size that aligns to memory end */
+	for (bz = MAX_BLOCK_SIZE; bz > MIN_MEMORY_BLOCK_SIZE; bz >>= 1) {
+		if (IS_ALIGNED(boot_mem_end, bz))
+			break;
+	}
+done:
 	pr_info("x86/mm: Memory block size: %ldMB\n", bz >> 20);
 
 	return bz;
diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c
index ada98b39b8ad..b3294d36769d 100644
--- a/arch/x86/mm/iomap_32.c
+++ b/arch/x86/mm/iomap_32.c
@@ -44,6 +44,9 @@ int iomap_create_wc(resource_size_t base, unsigned long size, pgprot_t *prot)
 		return ret;
 
 	*prot = __pgprot(__PAGE_KERNEL | cachemode2protval(pcm));
+	/* Filter out unsupported __PAGE_KERNEL* bits: */
+	pgprot_val(*prot) &= __default_kernel_pte_mask;
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(iomap_create_wc);
@@ -88,6 +91,9 @@ iomap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
 		prot = __pgprot(__PAGE_KERNEL |
 				cachemode2protval(_PAGE_CACHE_MODE_UC_MINUS));
 
+	/* Filter out unsupported __PAGE_KERNEL* bits: */
+	pgprot_val(prot) &= __default_kernel_pte_mask;
+
 	return (void __force __iomem *) kmap_atomic_prot_pfn(pfn, prot);
 }
 EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn);
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index e2db83bebc3b..c63a545ec199 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -816,6 +816,9 @@ void __init __early_set_fixmap(enum fixed_addresses idx,
 	}
 	pte = early_ioremap_pte(addr);
 
+	/* Sanitize 'prot' against any unsupported bits: */
+	pgprot_val(flags) &= __default_kernel_pte_mask;
+
 	if (pgprot_val(flags))
 		set_pte(pte, pfn_pte(phys >> PAGE_SHIFT, flags));
 	else
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index d8ff013ea9d0..980dbebd0ca7 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -269,6 +269,12 @@ void __init kasan_early_init(void)
 	pudval_t pud_val = __pa_nodebug(kasan_zero_pmd) | _KERNPG_TABLE;
 	p4dval_t p4d_val = __pa_nodebug(kasan_zero_pud) | _KERNPG_TABLE;
 
+	/* Mask out unsupported __PAGE_KERNEL bits: */
+	pte_val &= __default_kernel_pte_mask;
+	pmd_val &= __default_kernel_pte_mask;
+	pud_val &= __default_kernel_pte_mask;
+	p4d_val &= __default_kernel_pte_mask;
+
 	for (i = 0; i < PTRS_PER_PTE; i++)
 		kasan_zero_pte[i] = __pte(pte_val);
 
@@ -371,7 +377,13 @@ void __init kasan_init(void)
 	 */
 	memset(kasan_zero_page, 0, PAGE_SIZE);
 	for (i = 0; i < PTRS_PER_PTE; i++) {
-		pte_t pte = __pte(__pa(kasan_zero_page) | __PAGE_KERNEL_RO | _PAGE_ENC);
+		pte_t pte;
+		pgprot_t prot;
+
+		prot = __pgprot(__PAGE_KERNEL_RO | _PAGE_ENC);
+		pgprot_val(prot) &= __default_kernel_pte_mask;
+
+		pte = __pte(__pa(kasan_zero_page) | pgprot_val(prot));
 		set_pte(&kasan_zero_pte[i], pte);
 	}
 	/* Flush TLBs again to be sure that write protection applied. */
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index 155ecbac9e28..48c591251600 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -90,9 +90,10 @@ unsigned long arch_mmap_rnd(void)
 	return arch_rnd(mmap_is_ia32() ? mmap32_rnd_bits : mmap64_rnd_bits);
 }
 
-static unsigned long mmap_base(unsigned long rnd, unsigned long task_size)
+static unsigned long mmap_base(unsigned long rnd, unsigned long task_size,
+			       struct rlimit *rlim_stack)
 {
-	unsigned long gap = rlimit(RLIMIT_STACK);
+	unsigned long gap = rlim_stack->rlim_cur;
 	unsigned long pad = stack_maxrandom_size(task_size) + stack_guard_gap;
 	unsigned long gap_min, gap_max;
 
@@ -126,16 +127,17 @@ static unsigned long mmap_legacy_base(unsigned long rnd,
  * process VM image, sets up which VM layout function to use:
  */
 static void arch_pick_mmap_base(unsigned long *base, unsigned long *legacy_base,
-		unsigned long random_factor, unsigned long task_size)
+		unsigned long random_factor, unsigned long task_size,
+		struct rlimit *rlim_stack)
 {
 	*legacy_base = mmap_legacy_base(random_factor, task_size);
 	if (mmap_is_legacy())
 		*base = *legacy_base;
 	else
-		*base = mmap_base(random_factor, task_size);
+		*base = mmap_base(random_factor, task_size, rlim_stack);
 }
 
-void arch_pick_mmap_layout(struct mm_struct *mm)
+void arch_pick_mmap_layout(struct mm_struct *mm, struct rlimit *rlim_stack)
 {
 	if (mmap_is_legacy())
 		mm->get_unmapped_area = arch_get_unmapped_area;
@@ -143,7 +145,8 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
 
 	arch_pick_mmap_base(&mm->mmap_base, &mm->mmap_legacy_base,
-			arch_rnd(mmap64_rnd_bits), task_size_64bit(0));
+			arch_rnd(mmap64_rnd_bits), task_size_64bit(0),
+			rlim_stack);
 
 #ifdef CONFIG_HAVE_ARCH_COMPAT_MMAP_BASES
 	/*
@@ -153,7 +156,8 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	 * mmap_base, the compat syscall uses mmap_compat_base.
 	 */
 	arch_pick_mmap_base(&mm->mmap_compat_base, &mm->mmap_compat_legacy_base,
-			arch_rnd(mmap32_rnd_bits), task_size_32bit());
+			arch_rnd(mmap32_rnd_bits), task_size_32bit(),
+			rlim_stack);
 #endif
 }
 
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 85cf12219dea..0f3d50f4c48c 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -298,9 +298,11 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
 
 	/*
 	 * The .rodata section needs to be read-only. Using the pfn
-	 * catches all aliases.
+	 * catches all aliases.  This also includes __ro_after_init,
+	 * so do not enforce until kernel_set_to_readonly is true.
 	 */
-	if (within(pfn, __pa_symbol(__start_rodata) >> PAGE_SHIFT,
+	if (kernel_set_to_readonly &&
+	    within(pfn, __pa_symbol(__start_rodata) >> PAGE_SHIFT,
 		   __pa_symbol(__end_rodata) >> PAGE_SHIFT))
 		pgprot_val(forbidden) |= _PAGE_RW;
 
@@ -512,6 +514,23 @@ static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 #endif
 }
 
+static pgprot_t pgprot_clear_protnone_bits(pgprot_t prot)
+{
+	/*
+	 * _PAGE_GLOBAL means "global page" for present PTEs.
+	 * But, it is also used to indicate _PAGE_PROTNONE
+	 * for non-present PTEs.
+	 *
+	 * This ensures that a _PAGE_GLOBAL PTE going from
+	 * present to non-present is not confused as
+	 * _PAGE_PROTNONE.
+	 */
+	if (!(pgprot_val(prot) & _PAGE_PRESENT))
+		pgprot_val(prot) &= ~_PAGE_GLOBAL;
+
+	return prot;
+}
+
 static int
 try_preserve_large_page(pte_t *kpte, unsigned long address,
 			struct cpa_data *cpa)
@@ -566,6 +585,7 @@ try_preserve_large_page(pte_t *kpte, unsigned long address,
 	 * up accordingly.
 	 */
 	old_pte = *kpte;
+	/* Clear PSE (aka _PAGE_PAT) and move PAT bit to correct position */
 	req_prot = pgprot_large_2_4k(old_prot);
 
 	pgprot_val(req_prot) &= ~pgprot_val(cpa->mask_clr);
@@ -577,19 +597,9 @@ try_preserve_large_page(pte_t *kpte, unsigned long address,
 	 * different bit positions in the two formats.
 	 */
 	req_prot = pgprot_4k_2_large(req_prot);
-
-	/*
-	 * Set the PSE and GLOBAL flags only if the PRESENT flag is
-	 * set otherwise pmd_present/pmd_huge will return true even on
-	 * a non present pmd. The canon_pgprot will clear _PAGE_GLOBAL
-	 * for the ancient hardware that doesn't support it.
-	 */
+	req_prot = pgprot_clear_protnone_bits(req_prot);
 	if (pgprot_val(req_prot) & _PAGE_PRESENT)
-		pgprot_val(req_prot) |= _PAGE_PSE | _PAGE_GLOBAL;
-	else
-		pgprot_val(req_prot) &= ~(_PAGE_PSE | _PAGE_GLOBAL);
-
-	req_prot = canon_pgprot(req_prot);
+		pgprot_val(req_prot) |= _PAGE_PSE;
 
 	/*
 	 * old_pfn points to the large page base pfn. So we need
@@ -674,8 +684,12 @@ __split_large_page(struct cpa_data *cpa, pte_t *kpte, unsigned long address,
 	switch (level) {
 	case PG_LEVEL_2M:
 		ref_prot = pmd_pgprot(*(pmd_t *)kpte);
-		/* clear PSE and promote PAT bit to correct position */
+		/*
+		 * Clear PSE (aka _PAGE_PAT) and move
+		 * PAT bit to correct position.
+		 */
 		ref_prot = pgprot_large_2_4k(ref_prot);
+
 		ref_pfn = pmd_pfn(*(pmd_t *)kpte);
 		break;
 
@@ -698,23 +712,14 @@ __split_large_page(struct cpa_data *cpa, pte_t *kpte, unsigned long address,
 		return 1;
 	}
 
-	/*
-	 * Set the GLOBAL flags only if the PRESENT flag is set
-	 * otherwise pmd/pte_present will return true even on a non
-	 * present pmd/pte. The canon_pgprot will clear _PAGE_GLOBAL
-	 * for the ancient hardware that doesn't support it.
-	 */
-	if (pgprot_val(ref_prot) & _PAGE_PRESENT)
-		pgprot_val(ref_prot) |= _PAGE_GLOBAL;
-	else
-		pgprot_val(ref_prot) &= ~_PAGE_GLOBAL;
+	ref_prot = pgprot_clear_protnone_bits(ref_prot);
 
 	/*
 	 * Get the target pfn from the original entry:
 	 */
 	pfn = ref_pfn;
 	for (i = 0; i < PTRS_PER_PTE; i++, pfn += pfninc)
-		set_pte(&pbase[i], pfn_pte(pfn, canon_pgprot(ref_prot)));
+		set_pte(&pbase[i], pfn_pte(pfn, ref_prot));
 
 	if (virt_addr_valid(address)) {
 		unsigned long pfn = PFN_DOWN(__pa(address));
@@ -930,19 +935,7 @@ static void populate_pte(struct cpa_data *cpa,
 
 	pte = pte_offset_kernel(pmd, start);
 
-	/*
-	 * Set the GLOBAL flags only if the PRESENT flag is
-	 * set otherwise pte_present will return true even on
-	 * a non present pte. The canon_pgprot will clear
-	 * _PAGE_GLOBAL for the ancient hardware that doesn't
-	 * support it.
-	 */
-	if (pgprot_val(pgprot) & _PAGE_PRESENT)
-		pgprot_val(pgprot) |= _PAGE_GLOBAL;
-	else
-		pgprot_val(pgprot) &= ~_PAGE_GLOBAL;
-
-	pgprot = canon_pgprot(pgprot);
+	pgprot = pgprot_clear_protnone_bits(pgprot);
 
 	while (num_pages-- && start < end) {
 		set_pte(pte, pfn_pte(cpa->pfn, pgprot));
@@ -1234,24 +1227,14 @@ repeat:
 
 		new_prot = static_protections(new_prot, address, pfn);
 
-		/*
-		 * Set the GLOBAL flags only if the PRESENT flag is
-		 * set otherwise pte_present will return true even on
-		 * a non present pte. The canon_pgprot will clear
-		 * _PAGE_GLOBAL for the ancient hardware that doesn't
-		 * support it.
-		 */
-		if (pgprot_val(new_prot) & _PAGE_PRESENT)
-			pgprot_val(new_prot) |= _PAGE_GLOBAL;
-		else
-			pgprot_val(new_prot) &= ~_PAGE_GLOBAL;
+		new_prot = pgprot_clear_protnone_bits(new_prot);
 
 		/*
 		 * We need to keep the pfn from the existing PTE,
 		 * after all we're only going to change it's attributes
 		 * not the memory it points to
 		 */
-		new_pte = pfn_pte(pfn, canon_pgprot(new_prot));
+		new_pte = pfn_pte(pfn, new_prot);
 		cpa->pfn = pfn;
 		/*
 		 * Do we really change anything ?
@@ -1428,11 +1411,11 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages,
 	memset(&cpa, 0, sizeof(cpa));
 
 	/*
-	 * Check, if we are requested to change a not supported
-	 * feature:
+	 * Check, if we are requested to set a not supported
+	 * feature.  Clearing non-supported features is OK.
 	 */
 	mask_set = canon_pgprot(mask_set);
-	mask_clr = canon_pgprot(mask_clr);
+
 	if (!pgprot_val(mask_set) && !pgprot_val(mask_clr) && !force_split)
 		return 0;
 
@@ -1775,6 +1758,12 @@ int set_memory_4k(unsigned long addr, int numpages)
 					__pgprot(0), 1, 0, NULL);
 }
 
+int set_memory_nonglobal(unsigned long addr, int numpages)
+{
+	return change_page_attr_clear(&addr, numpages,
+				      __pgprot(_PAGE_GLOBAL), 0);
+}
+
 static int __set_memory_enc_dec(unsigned long addr, int numpages, bool enc)
 {
 	struct cpa_data cpa;
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 34cda7e0551b..ffc8c13c50e4 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <linux/gfp.h>
+#include <linux/hugetlb.h>
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
 #include <asm/tlb.h>
@@ -583,6 +584,9 @@ void __native_set_fixmap(enum fixed_addresses idx, pte_t pte)
 void native_set_fixmap(enum fixed_addresses idx, phys_addr_t phys,
 		       pgprot_t flags)
 {
+	/* Sanitize 'prot' against any unsupported bits: */
+	pgprot_val(flags) &= __default_kernel_pte_mask;
+
 	__native_set_fixmap(idx, pfn_pte(phys >> PAGE_SHIFT, flags));
 }
 
@@ -636,6 +640,10 @@ int pud_set_huge(pud_t *pud, phys_addr_t addr, pgprot_t prot)
 	    (mtrr != MTRR_TYPE_WRBACK))
 		return 0;
 
+	/* Bail out if we are we on a populated non-leaf entry: */
+	if (pud_present(*pud) && !pud_huge(*pud))
+		return 0;
+
 	prot = pgprot_4k_2_large(prot);
 
 	set_pte((pte_t *)pud, pfn_pte(
@@ -664,6 +672,10 @@ int pmd_set_huge(pmd_t *pmd, phys_addr_t addr, pgprot_t prot)
 		return 0;
 	}
 
+	/* Bail out if we are we on a populated non-leaf entry: */
+	if (pmd_present(*pmd) && !pmd_huge(*pmd))
+		return 0;
+
 	prot = pgprot_4k_2_large(prot);
 
 	set_pte((pte_t *)pmd, pfn_pte(
diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c
index 631507f0c198..f1fd52f449e0 100644
--- a/arch/x86/mm/pti.c
+++ b/arch/x86/mm/pti.c
@@ -66,12 +66,22 @@ static void __init pti_print_if_secure(const char *reason)
 		pr_info("%s\n", reason);
 }
 
+enum pti_mode {
+	PTI_AUTO = 0,
+	PTI_FORCE_OFF,
+	PTI_FORCE_ON
+} pti_mode;
+
 void __init pti_check_boottime_disable(void)
 {
 	char arg[5];
 	int ret;
 
+	/* Assume mode is auto unless overridden. */
+	pti_mode = PTI_AUTO;
+
 	if (hypervisor_is_type(X86_HYPER_XEN_PV)) {
+		pti_mode = PTI_FORCE_OFF;
 		pti_print_if_insecure("disabled on XEN PV.");
 		return;
 	}
@@ -79,18 +89,23 @@ void __init pti_check_boottime_disable(void)
 	ret = cmdline_find_option(boot_command_line, "pti", arg, sizeof(arg));
 	if (ret > 0)  {
 		if (ret == 3 && !strncmp(arg, "off", 3)) {
+			pti_mode = PTI_FORCE_OFF;
 			pti_print_if_insecure("disabled on command line.");
 			return;
 		}
 		if (ret == 2 && !strncmp(arg, "on", 2)) {
+			pti_mode = PTI_FORCE_ON;
 			pti_print_if_secure("force enabled on command line.");
 			goto enable;
 		}
-		if (ret == 4 && !strncmp(arg, "auto", 4))
+		if (ret == 4 && !strncmp(arg, "auto", 4)) {
+			pti_mode = PTI_AUTO;
 			goto autosel;
+		}
 	}
 
 	if (cmdline_find_option_bool(boot_command_line, "nopti")) {
+		pti_mode = PTI_FORCE_OFF;
 		pti_print_if_insecure("disabled on command line.");
 		return;
 	}
@@ -149,7 +164,7 @@ pgd_t __pti_set_user_pgd(pgd_t *pgdp, pgd_t pgd)
  *
  * Returns a pointer to a P4D on success, or NULL on failure.
  */
-static __init p4d_t *pti_user_pagetable_walk_p4d(unsigned long address)
+static p4d_t *pti_user_pagetable_walk_p4d(unsigned long address)
 {
 	pgd_t *pgd = kernel_to_user_pgdp(pgd_offset_k(address));
 	gfp_t gfp = (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO);
@@ -177,7 +192,7 @@ static __init p4d_t *pti_user_pagetable_walk_p4d(unsigned long address)
  *
  * Returns a pointer to a PMD on success, or NULL on failure.
  */
-static __init pmd_t *pti_user_pagetable_walk_pmd(unsigned long address)
+static pmd_t *pti_user_pagetable_walk_pmd(unsigned long address)
 {
 	gfp_t gfp = (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO);
 	p4d_t *p4d = pti_user_pagetable_walk_p4d(address);
@@ -267,7 +282,7 @@ static void __init pti_setup_vsyscall(void)
 static void __init pti_setup_vsyscall(void) { }
 #endif
 
-static void __init
+static void
 pti_clone_pmds(unsigned long start, unsigned long end, pmdval_t clear)
 {
 	unsigned long addr;
@@ -300,6 +315,27 @@ pti_clone_pmds(unsigned long start, unsigned long end, pmdval_t clear)
 			return;
 
 		/*
+		 * Only clone present PMDs.  This ensures only setting
+		 * _PAGE_GLOBAL on present PMDs.  This should only be
+		 * called on well-known addresses anyway, so a non-
+		 * present PMD would be a surprise.
+		 */
+		if (WARN_ON(!(pmd_flags(*pmd) & _PAGE_PRESENT)))
+			return;
+
+		/*
+		 * Setting 'target_pmd' below creates a mapping in both
+		 * the user and kernel page tables.  It is effectively
+		 * global, so set it as global in both copies.  Note:
+		 * the X86_FEATURE_PGE check is not _required_ because
+		 * the CPU ignores _PAGE_GLOBAL when PGE is not
+		 * supported.  The check keeps consistentency with
+		 * code that only set this bit when supported.
+		 */
+		if (boot_cpu_has(X86_FEATURE_PGE))
+			*pmd = pmd_set_flags(*pmd, _PAGE_GLOBAL);
+
+		/*
 		 * Copy the PMD.  That is, the kernelmode and usermode
 		 * tables will share the last-level page tables of this
 		 * address range
@@ -348,7 +384,83 @@ static void __init pti_clone_entry_text(void)
 {
 	pti_clone_pmds((unsigned long) __entry_text_start,
 			(unsigned long) __irqentry_text_end,
-		       _PAGE_RW | _PAGE_GLOBAL);
+		       _PAGE_RW);
+}
+
+/*
+ * Global pages and PCIDs are both ways to make kernel TLB entries
+ * live longer, reduce TLB misses and improve kernel performance.
+ * But, leaving all kernel text Global makes it potentially accessible
+ * to Meltdown-style attacks which make it trivial to find gadgets or
+ * defeat KASLR.
+ *
+ * Only use global pages when it is really worth it.
+ */
+static inline bool pti_kernel_image_global_ok(void)
+{
+	/*
+	 * Systems with PCIDs get litlle benefit from global
+	 * kernel text and are not worth the downsides.
+	 */
+	if (cpu_feature_enabled(X86_FEATURE_PCID))
+		return false;
+
+	/*
+	 * Only do global kernel image for pti=auto.  Do the most
+	 * secure thing (not global) if pti=on specified.
+	 */
+	if (pti_mode != PTI_AUTO)
+		return false;
+
+	/*
+	 * K8 may not tolerate the cleared _PAGE_RW on the userspace
+	 * global kernel image pages.  Do the safe thing (disable
+	 * global kernel image).  This is unlikely to ever be
+	 * noticed because PTI is disabled by default on AMD CPUs.
+	 */
+	if (boot_cpu_has(X86_FEATURE_K8))
+		return false;
+
+	return true;
+}
+
+/*
+ * For some configurations, map all of kernel text into the user page
+ * tables.  This reduces TLB misses, especially on non-PCID systems.
+ */
+void pti_clone_kernel_text(void)
+{
+	unsigned long start = PFN_ALIGN(_text);
+	unsigned long end = ALIGN((unsigned long)_end, PMD_PAGE_SIZE);
+
+	if (!pti_kernel_image_global_ok())
+		return;
+
+	pti_clone_pmds(start, end, _PAGE_RW);
+}
+
+/*
+ * This is the only user for it and it is not arch-generic like
+ * the other set_memory.h functions.  Just extern it.
+ */
+extern int set_memory_nonglobal(unsigned long addr, int numpages);
+void pti_set_kernel_image_nonglobal(void)
+{
+	/*
+	 * The identity map is created with PMDs, regardless of the
+	 * actual length of the kernel.  We need to clear
+	 * _PAGE_GLOBAL up to a PMD boundary, not just to the end
+	 * of the image.
+	 */
+	unsigned long start = PFN_ALIGN(_text);
+	unsigned long end = ALIGN((unsigned long)_end, PMD_PAGE_SIZE);
+
+	if (pti_kernel_image_global_ok())
+		return;
+
+	pr_debug("set kernel image non-global\n");
+
+	set_memory_nonglobal(start, (end - start) >> PAGE_SHIFT);
 }
 
 /*
@@ -362,6 +474,10 @@ void __init pti_init(void)
 	pr_info("enabled\n");
 
 	pti_clone_user_shared();
+
+	/* Undo all global bits from the init pagetables in head_64.S: */
+	pti_set_kernel_image_nonglobal();
+	/* Replace some of the global bits just for shared entry text: */
 	pti_clone_entry_text();
 	pti_setup_espfix64();
 	pti_setup_vsyscall();
diff --git a/arch/x86/power/hibernate_64.c b/arch/x86/power/hibernate_64.c
index 74a532989308..48b14b534897 100644
--- a/arch/x86/power/hibernate_64.c
+++ b/arch/x86/power/hibernate_64.c
@@ -51,6 +51,12 @@ static int set_up_temporary_text_mapping(pgd_t *pgd)
 	pmd_t *pmd;
 	pud_t *pud;
 	p4d_t *p4d = NULL;
+	pgprot_t pgtable_prot = __pgprot(_KERNPG_TABLE);
+	pgprot_t pmd_text_prot = __pgprot(__PAGE_KERNEL_LARGE_EXEC);
+
+	/* Filter out unsupported __PAGE_KERNEL* bits: */
+	pgprot_val(pmd_text_prot) &= __default_kernel_pte_mask;
+	pgprot_val(pgtable_prot)  &= __default_kernel_pte_mask;
 
 	/*
 	 * The new mapping only has to cover the page containing the image
@@ -81,15 +87,19 @@ static int set_up_temporary_text_mapping(pgd_t *pgd)
 		return -ENOMEM;
 
 	set_pmd(pmd + pmd_index(restore_jump_address),
-		__pmd((jump_address_phys & PMD_MASK) | __PAGE_KERNEL_LARGE_EXEC));
+		__pmd((jump_address_phys & PMD_MASK) | pgprot_val(pmd_text_prot)));
 	set_pud(pud + pud_index(restore_jump_address),
-		__pud(__pa(pmd) | _KERNPG_TABLE));
+		__pud(__pa(pmd) | pgprot_val(pgtable_prot)));
 	if (p4d) {
-		set_p4d(p4d + p4d_index(restore_jump_address), __p4d(__pa(pud) | _KERNPG_TABLE));
-		set_pgd(pgd + pgd_index(restore_jump_address), __pgd(__pa(p4d) | _KERNPG_TABLE));
+		p4d_t new_p4d = __p4d(__pa(pud) | pgprot_val(pgtable_prot));
+		pgd_t new_pgd = __pgd(__pa(p4d) | pgprot_val(pgtable_prot));
+
+		set_p4d(p4d + p4d_index(restore_jump_address), new_p4d);
+		set_pgd(pgd + pgd_index(restore_jump_address), new_pgd);
 	} else {
 		/* No p4d for 4-level paging: point the pgd to the pud page table */
-		set_pgd(pgd + pgd_index(restore_jump_address), __pgd(__pa(pud) | _KERNPG_TABLE));
+		pgd_t new_pgd = __pgd(__pa(p4d) | pgprot_val(pgtable_prot));
+		set_pgd(pgd + pgd_index(restore_jump_address), new_pgd);
 	}
 
 	return 0;
diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index d70c15de417b..2e9ee023e6bc 100644
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -6,6 +6,9 @@ purgatory-y := purgatory.o stack.o setup-x86_$(BITS).o sha256.o entry64.o string
 targets += $(purgatory-y)
 PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y))
 
+$(obj)/sha256.o: $(srctree)/lib/sha256.c
+	$(call if_changed_rule,cc_o_c)
+
 LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib -z nodefaultlib
 targets += purgatory.ro
 
diff --git a/arch/x86/purgatory/purgatory.c b/arch/x86/purgatory/purgatory.c
index 470edad96bb9..025c34ac0d84 100644
--- a/arch/x86/purgatory/purgatory.c
+++ b/arch/x86/purgatory/purgatory.c
@@ -11,9 +11,9 @@
  */
 
 #include <linux/bug.h>
+#include <linux/sha256.h>
 #include <asm/purgatory.h>
 
-#include "sha256.h"
 #include "../boot/string.h"
 
 unsigned long purgatory_backup_dest __section(.kexec-purgatory);
diff --git a/arch/x86/purgatory/sha256.c b/arch/x86/purgatory/sha256.c
deleted file mode 100644
index 548ca675a14a..000000000000
--- a/arch/x86/purgatory/sha256.c
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
- * SHA-256, as specified in
- * http://csrc.nist.gov/groups/STM/cavp/documents/shs/sha256-384-512.pdf
- *
- * SHA-256 code by Jean-Luc Cooke <jlcooke@certainkey.com>.
- *
- * Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
- * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
- * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
- * Copyright (c) 2014 Red Hat Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- */
-
-#include <linux/bitops.h>
-#include <asm/byteorder.h>
-#include "sha256.h"
-#include "../boot/string.h"
-
-static inline u32 Ch(u32 x, u32 y, u32 z)
-{
-	return z ^ (x & (y ^ z));
-}
-
-static inline u32 Maj(u32 x, u32 y, u32 z)
-{
-	return (x & y) | (z & (x | y));
-}
-
-#define e0(x)       (ror32(x, 2) ^ ror32(x, 13) ^ ror32(x, 22))
-#define e1(x)       (ror32(x, 6) ^ ror32(x, 11) ^ ror32(x, 25))
-#define s0(x)       (ror32(x, 7) ^ ror32(x, 18) ^ (x >> 3))
-#define s1(x)       (ror32(x, 17) ^ ror32(x, 19) ^ (x >> 10))
-
-static inline void LOAD_OP(int I, u32 *W, const u8 *input)
-{
-	W[I] = __be32_to_cpu(((__be32 *)(input))[I]);
-}
-
-static inline void BLEND_OP(int I, u32 *W)
-{
-	W[I] = s1(W[I-2]) + W[I-7] + s0(W[I-15]) + W[I-16];
-}
-
-static void sha256_transform(u32 *state, const u8 *input)
-{
-	u32 a, b, c, d, e, f, g, h, t1, t2;
-	u32 W[64];
-	int i;
-
-	/* load the input */
-	for (i = 0; i < 16; i++)
-		LOAD_OP(i, W, input);
-
-	/* now blend */
-	for (i = 16; i < 64; i++)
-		BLEND_OP(i, W);
-
-	/* load the state into our registers */
-	a = state[0];  b = state[1];  c = state[2];  d = state[3];
-	e = state[4];  f = state[5];  g = state[6];  h = state[7];
-
-	/* now iterate */
-	t1 = h + e1(e) + Ch(e, f, g) + 0x428a2f98 + W[0];
-	t2 = e0(a) + Maj(a, b, c);    d += t1;    h = t1 + t2;
-	t1 = g + e1(d) + Ch(d, e, f) + 0x71374491 + W[1];
-	t2 = e0(h) + Maj(h, a, b);    c += t1;    g = t1 + t2;
-	t1 = f + e1(c) + Ch(c, d, e) + 0xb5c0fbcf + W[2];
-	t2 = e0(g) + Maj(g, h, a);    b += t1;    f = t1 + t2;
-	t1 = e + e1(b) + Ch(b, c, d) + 0xe9b5dba5 + W[3];
-	t2 = e0(f) + Maj(f, g, h);    a += t1;    e = t1 + t2;
-	t1 = d + e1(a) + Ch(a, b, c) + 0x3956c25b + W[4];
-	t2 = e0(e) + Maj(e, f, g);    h += t1;    d = t1 + t2;
-	t1 = c + e1(h) + Ch(h, a, b) + 0x59f111f1 + W[5];
-	t2 = e0(d) + Maj(d, e, f);    g += t1;    c = t1 + t2;
-	t1 = b + e1(g) + Ch(g, h, a) + 0x923f82a4 + W[6];
-	t2 = e0(c) + Maj(c, d, e);    f += t1;    b = t1 + t2;
-	t1 = a + e1(f) + Ch(f, g, h) + 0xab1c5ed5 + W[7];
-	t2 = e0(b) + Maj(b, c, d);    e += t1;    a = t1 + t2;
-
-	t1 = h + e1(e) + Ch(e, f, g) + 0xd807aa98 + W[8];
-	t2 = e0(a) + Maj(a, b, c);    d += t1;    h = t1 + t2;
-	t1 = g + e1(d) + Ch(d, e, f) + 0x12835b01 + W[9];
-	t2 = e0(h) + Maj(h, a, b);    c += t1;    g = t1 + t2;
-	t1 = f + e1(c) + Ch(c, d, e) + 0x243185be + W[10];
-	t2 = e0(g) + Maj(g, h, a);    b += t1;    f = t1 + t2;
-	t1 = e + e1(b) + Ch(b, c, d) + 0x550c7dc3 + W[11];
-	t2 = e0(f) + Maj(f, g, h);    a += t1;    e = t1 + t2;
-	t1 = d + e1(a) + Ch(a, b, c) + 0x72be5d74 + W[12];
-	t2 = e0(e) + Maj(e, f, g);    h += t1;    d = t1 + t2;
-	t1 = c + e1(h) + Ch(h, a, b) + 0x80deb1fe + W[13];
-	t2 = e0(d) + Maj(d, e, f);    g += t1;    c = t1 + t2;
-	t1 = b + e1(g) + Ch(g, h, a) + 0x9bdc06a7 + W[14];
-	t2 = e0(c) + Maj(c, d, e);    f += t1;    b = t1 + t2;
-	t1 = a + e1(f) + Ch(f, g, h) + 0xc19bf174 + W[15];
-	t2 = e0(b) + Maj(b, c, d);    e += t1;    a = t1+t2;
-
-	t1 = h + e1(e) + Ch(e, f, g) + 0xe49b69c1 + W[16];
-	t2 = e0(a) + Maj(a, b, c);    d += t1;    h = t1+t2;
-	t1 = g + e1(d) + Ch(d, e, f) + 0xefbe4786 + W[17];
-	t2 = e0(h) + Maj(h, a, b);    c += t1;    g = t1+t2;
-	t1 = f + e1(c) + Ch(c, d, e) + 0x0fc19dc6 + W[18];
-	t2 = e0(g) + Maj(g, h, a);    b += t1;    f = t1+t2;
-	t1 = e + e1(b) + Ch(b, c, d) + 0x240ca1cc + W[19];
-	t2 = e0(f) + Maj(f, g, h);    a += t1;    e = t1+t2;
-	t1 = d + e1(a) + Ch(a, b, c) + 0x2de92c6f + W[20];
-	t2 = e0(e) + Maj(e, f, g);    h += t1;    d = t1+t2;
-	t1 = c + e1(h) + Ch(h, a, b) + 0x4a7484aa + W[21];
-	t2 = e0(d) + Maj(d, e, f);    g += t1;    c = t1+t2;
-	t1 = b + e1(g) + Ch(g, h, a) + 0x5cb0a9dc + W[22];
-	t2 = e0(c) + Maj(c, d, e);    f += t1;    b = t1+t2;
-	t1 = a + e1(f) + Ch(f, g, h) + 0x76f988da + W[23];
-	t2 = e0(b) + Maj(b, c, d);    e += t1;    a = t1+t2;
-
-	t1 = h + e1(e) + Ch(e, f, g) + 0x983e5152 + W[24];
-	t2 = e0(a) + Maj(a, b, c);    d += t1;    h = t1+t2;
-	t1 = g + e1(d) + Ch(d, e, f) + 0xa831c66d + W[25];
-	t2 = e0(h) + Maj(h, a, b);    c += t1;    g = t1+t2;
-	t1 = f + e1(c) + Ch(c, d, e) + 0xb00327c8 + W[26];
-	t2 = e0(g) + Maj(g, h, a);    b += t1;    f = t1+t2;
-	t1 = e + e1(b) + Ch(b, c, d) + 0xbf597fc7 + W[27];
-	t2 = e0(f) + Maj(f, g, h);    a += t1;    e = t1+t2;
-	t1 = d + e1(a) + Ch(a, b, c) + 0xc6e00bf3 + W[28];
-	t2 = e0(e) + Maj(e, f, g);    h += t1;    d = t1+t2;
-	t1 = c + e1(h) + Ch(h, a, b) + 0xd5a79147 + W[29];
-	t2 = e0(d) + Maj(d, e, f);    g += t1;    c = t1+t2;
-	t1 = b + e1(g) + Ch(g, h, a) + 0x06ca6351 + W[30];
-	t2 = e0(c) + Maj(c, d, e);    f += t1;    b = t1+t2;
-	t1 = a + e1(f) + Ch(f, g, h) + 0x14292967 + W[31];
-	t2 = e0(b) + Maj(b, c, d);    e += t1;    a = t1+t2;
-
-	t1 = h + e1(e) + Ch(e, f, g) + 0x27b70a85 + W[32];
-	t2 = e0(a) + Maj(a, b, c);    d += t1;    h = t1+t2;
-	t1 = g + e1(d) + Ch(d, e, f) + 0x2e1b2138 + W[33];
-	t2 = e0(h) + Maj(h, a, b);    c += t1;    g = t1+t2;
-	t1 = f + e1(c) + Ch(c, d, e) + 0x4d2c6dfc + W[34];
-	t2 = e0(g) + Maj(g, h, a);    b += t1;    f = t1+t2;
-	t1 = e + e1(b) + Ch(b, c, d) + 0x53380d13 + W[35];
-	t2 = e0(f) + Maj(f, g, h);    a += t1;    e = t1+t2;
-	t1 = d + e1(a) + Ch(a, b, c) + 0x650a7354 + W[36];
-	t2 = e0(e) + Maj(e, f, g);    h += t1;    d = t1+t2;
-	t1 = c + e1(h) + Ch(h, a, b) + 0x766a0abb + W[37];
-	t2 = e0(d) + Maj(d, e, f);    g += t1;    c = t1+t2;
-	t1 = b + e1(g) + Ch(g, h, a) + 0x81c2c92e + W[38];
-	t2 = e0(c) + Maj(c, d, e);    f += t1;    b = t1+t2;
-	t1 = a + e1(f) + Ch(f, g, h) + 0x92722c85 + W[39];
-	t2 = e0(b) + Maj(b, c, d);    e += t1;    a = t1+t2;
-
-	t1 = h + e1(e) + Ch(e, f, g) + 0xa2bfe8a1 + W[40];
-	t2 = e0(a) + Maj(a, b, c);    d += t1;    h = t1+t2;
-	t1 = g + e1(d) + Ch(d, e, f) + 0xa81a664b + W[41];
-	t2 = e0(h) + Maj(h, a, b);    c += t1;    g = t1+t2;
-	t1 = f + e1(c) + Ch(c, d, e) + 0xc24b8b70 + W[42];
-	t2 = e0(g) + Maj(g, h, a);    b += t1;    f = t1+t2;
-	t1 = e + e1(b) + Ch(b, c, d) + 0xc76c51a3 + W[43];
-	t2 = e0(f) + Maj(f, g, h);    a += t1;    e = t1+t2;
-	t1 = d + e1(a) + Ch(a, b, c) + 0xd192e819 + W[44];
-	t2 = e0(e) + Maj(e, f, g);    h += t1;    d = t1+t2;
-	t1 = c + e1(h) + Ch(h, a, b) + 0xd6990624 + W[45];
-	t2 = e0(d) + Maj(d, e, f);    g += t1;    c = t1+t2;
-	t1 = b + e1(g) + Ch(g, h, a) + 0xf40e3585 + W[46];
-	t2 = e0(c) + Maj(c, d, e);    f += t1;    b = t1+t2;
-	t1 = a + e1(f) + Ch(f, g, h) + 0x106aa070 + W[47];
-	t2 = e0(b) + Maj(b, c, d);    e += t1;    a = t1+t2;
-
-	t1 = h + e1(e) + Ch(e, f, g) + 0x19a4c116 + W[48];
-	t2 = e0(a) + Maj(a, b, c);    d += t1;    h = t1+t2;
-	t1 = g + e1(d) + Ch(d, e, f) + 0x1e376c08 + W[49];
-	t2 = e0(h) + Maj(h, a, b);    c += t1;    g = t1+t2;
-	t1 = f + e1(c) + Ch(c, d, e) + 0x2748774c + W[50];
-	t2 = e0(g) + Maj(g, h, a);    b += t1;    f = t1+t2;
-	t1 = e + e1(b) + Ch(b, c, d) + 0x34b0bcb5 + W[51];
-	t2 = e0(f) + Maj(f, g, h);    a += t1;    e = t1+t2;
-	t1 = d + e1(a) + Ch(a, b, c) + 0x391c0cb3 + W[52];
-	t2 = e0(e) + Maj(e, f, g);    h += t1;    d = t1+t2;
-	t1 = c + e1(h) + Ch(h, a, b) + 0x4ed8aa4a + W[53];
-	t2 = e0(d) + Maj(d, e, f);    g += t1;    c = t1+t2;
-	t1 = b + e1(g) + Ch(g, h, a) + 0x5b9cca4f + W[54];
-	t2 = e0(c) + Maj(c, d, e);    f += t1;    b = t1+t2;
-	t1 = a + e1(f) + Ch(f, g, h) + 0x682e6ff3 + W[55];
-	t2 = e0(b) + Maj(b, c, d);    e += t1;    a = t1+t2;
-
-	t1 = h + e1(e) + Ch(e, f, g) + 0x748f82ee + W[56];
-	t2 = e0(a) + Maj(a, b, c);    d += t1;    h = t1+t2;
-	t1 = g + e1(d) + Ch(d, e, f) + 0x78a5636f + W[57];
-	t2 = e0(h) + Maj(h, a, b);    c += t1;    g = t1+t2;
-	t1 = f + e1(c) + Ch(c, d, e) + 0x84c87814 + W[58];
-	t2 = e0(g) + Maj(g, h, a);    b += t1;    f = t1+t2;
-	t1 = e + e1(b) + Ch(b, c, d) + 0x8cc70208 + W[59];
-	t2 = e0(f) + Maj(f, g, h);    a += t1;    e = t1+t2;
-	t1 = d + e1(a) + Ch(a, b, c) + 0x90befffa + W[60];
-	t2 = e0(e) + Maj(e, f, g);    h += t1;    d = t1+t2;
-	t1 = c + e1(h) + Ch(h, a, b) + 0xa4506ceb + W[61];
-	t2 = e0(d) + Maj(d, e, f);    g += t1;    c = t1+t2;
-	t1 = b + e1(g) + Ch(g, h, a) + 0xbef9a3f7 + W[62];
-	t2 = e0(c) + Maj(c, d, e);    f += t1;    b = t1+t2;
-	t1 = a + e1(f) + Ch(f, g, h) + 0xc67178f2 + W[63];
-	t2 = e0(b) + Maj(b, c, d);    e += t1;    a = t1+t2;
-
-	state[0] += a; state[1] += b; state[2] += c; state[3] += d;
-	state[4] += e; state[5] += f; state[6] += g; state[7] += h;
-
-	/* clear any sensitive info... */
-	a = b = c = d = e = f = g = h = t1 = t2 = 0;
-	memset(W, 0, 64 * sizeof(u32));
-}
-
-int sha256_init(struct sha256_state *sctx)
-{
-	sctx->state[0] = SHA256_H0;
-	sctx->state[1] = SHA256_H1;
-	sctx->state[2] = SHA256_H2;
-	sctx->state[3] = SHA256_H3;
-	sctx->state[4] = SHA256_H4;
-	sctx->state[5] = SHA256_H5;
-	sctx->state[6] = SHA256_H6;
-	sctx->state[7] = SHA256_H7;
-	sctx->count = 0;
-
-	return 0;
-}
-
-int sha256_update(struct sha256_state *sctx, const u8 *data, unsigned int len)
-{
-	unsigned int partial, done;
-	const u8 *src;
-
-	partial = sctx->count & 0x3f;
-	sctx->count += len;
-	done = 0;
-	src = data;
-
-	if ((partial + len) > 63) {
-		if (partial) {
-			done = -partial;
-			memcpy(sctx->buf + partial, data, done + 64);
-			src = sctx->buf;
-		}
-
-		do {
-			sha256_transform(sctx->state, src);
-			done += 64;
-			src = data + done;
-		} while (done + 63 < len);
-
-		partial = 0;
-	}
-	memcpy(sctx->buf + partial, src, len - done);
-
-	return 0;
-}
-
-int sha256_final(struct sha256_state *sctx, u8 *out)
-{
-	__be32 *dst = (__be32 *)out;
-	__be64 bits;
-	unsigned int index, pad_len;
-	int i;
-	static const u8 padding[64] = { 0x80, };
-
-	/* Save number of bits */
-	bits = cpu_to_be64(sctx->count << 3);
-
-	/* Pad out to 56 mod 64. */
-	index = sctx->count & 0x3f;
-	pad_len = (index < 56) ? (56 - index) : ((64+56) - index);
-	sha256_update(sctx, padding, pad_len);
-
-	/* Append length (before padding) */
-	sha256_update(sctx, (const u8 *)&bits, sizeof(bits));
-
-	/* Store state in digest */
-	for (i = 0; i < 8; i++)
-		dst[i] = cpu_to_be32(sctx->state[i]);
-
-	/* Zeroize sensitive information. */
-	memset(sctx, 0, sizeof(*sctx));
-
-	return 0;
-}
diff --git a/arch/x86/purgatory/sha256.h b/arch/x86/purgatory/sha256.h
deleted file mode 100644
index 2867d9825a57..000000000000
--- a/arch/x86/purgatory/sha256.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- *  Copyright (C) 2014 Red Hat Inc.
- *
- *  Author: Vivek Goyal <vgoyal@redhat.com>
- *
- * This source code is licensed under the GNU General Public License,
- * Version 2.  See the file COPYING for more details.
- */
-
-#ifndef SHA256_H
-#define SHA256_H
-
-#include <linux/types.h>
-#include <crypto/sha.h>
-
-extern int sha256_init(struct sha256_state *sctx);
-extern int sha256_update(struct sha256_state *sctx, const u8 *input,
-				unsigned int length);
-extern int sha256_final(struct sha256_state *sctx, u8 *hash);
-
-#endif /* SHA256_H */
diff --git a/arch/x86/purgatory/string.c b/arch/x86/purgatory/string.c
index d886b1fa36f0..795ca4f2cb3c 100644
--- a/arch/x86/purgatory/string.c
+++ b/arch/x86/purgatory/string.c
@@ -10,4 +10,16 @@
  * Version 2.  See the file COPYING for more details.
  */
 
+#include <linux/types.h>
+
 #include "../boot/string.c"
+
+void *memcpy(void *dst, const void *src, size_t len)
+{
+	return __builtin_memcpy(dst, src, len);
+}
+
+void *memset(void *dst, int c, size_t len)
+{
+	return __builtin_memset(dst, c, len);
+}
diff --git a/arch/x86/um/stub_segv.c b/arch/x86/um/stub_segv.c
index 1518d2805ae8..27361cbb7ca9 100644
--- a/arch/x86/um/stub_segv.c
+++ b/arch/x86/um/stub_segv.c
@@ -6,11 +6,12 @@
 #include <sysdep/stub.h>
 #include <sysdep/faultinfo.h>
 #include <sysdep/mcontext.h>
+#include <sys/ucontext.h>
 
 void __attribute__ ((__section__ (".__syscall_stub")))
 stub_segv_handler(int sig, siginfo_t *info, void *p)
 {
-	struct ucontext *uc = p;
+	ucontext_t *uc = p;
 
 	GET_FAULTINFO_FROM_MC(*((struct faultinfo *) STUB_DATA),
 			      &uc->uc_mcontext);
diff --git a/arch/x86/xen/apic.c b/arch/x86/xen/apic.c
index 2163888497d3..5e53bfbe5823 100644
--- a/arch/x86/xen/apic.c
+++ b/arch/x86/xen/apic.c
@@ -112,7 +112,7 @@ static int xen_madt_oem_check(char *oem_id, char *oem_table_id)
 	return xen_pv_domain();
 }
 
-static int xen_id_always_valid(int apicid)
+static int xen_id_always_valid(u32 apicid)
 {
 	return 1;
 }
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 3c2c2530737e..c36d23aa6c35 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -1259,10 +1259,6 @@ asmlinkage __visible void __init xen_start_kernel(void)
 	 */
 	__userpte_alloc_gfp &= ~__GFP_HIGHMEM;
 
-	/* Work out if we support NX */
-	get_cpu_cap(&boot_cpu_data);
-	x86_configure_nx();
-
 	/* Get mfn list */
 	xen_build_dynamic_phys_to_machine();
 
@@ -1272,6 +1268,10 @@ asmlinkage __visible void __init xen_start_kernel(void)
 	 */
 	xen_setup_gdt(0);
 
+	/* Work out if we support NX */
+	get_cpu_cap(&boot_cpu_data);
+	x86_configure_nx();
+
 	xen_init_irq_ops();
 
 	/* Let's presume PV guests always boot on vCPU with id 0. */
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index d20763472920..486c0a34d00b 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -116,6 +116,8 @@ DEFINE_PER_CPU(unsigned long, xen_current_cr3);	 /* actual vcpu cr3 */
 
 static phys_addr_t xen_pt_base, xen_pt_size __initdata;
 
+static DEFINE_STATIC_KEY_FALSE(xen_struct_pages_ready);
+
 /*
  * Just beyond the highest usermode address.  STACK_TOP_MAX has a
  * redzone above it, so round it up to a PGD boundary.
@@ -155,11 +157,18 @@ void make_lowmem_page_readwrite(void *vaddr)
 }
 
 
+/*
+ * During early boot all page table pages are pinned, but we do not have struct
+ * pages, so return true until struct pages are ready.
+ */
 static bool xen_page_pinned(void *ptr)
 {
-	struct page *page = virt_to_page(ptr);
+	if (static_branch_likely(&xen_struct_pages_ready)) {
+		struct page *page = virt_to_page(ptr);
 
-	return PagePinned(page);
+		return PagePinned(page);
+	}
+	return true;
 }
 
 static void xen_extend_mmu_update(const struct mmu_update *update)
@@ -836,11 +845,6 @@ void xen_mm_pin_all(void)
 	spin_unlock(&pgd_lock);
 }
 
-/*
- * The init_mm pagetable is really pinned as soon as its created, but
- * that's before we have page structures to store the bits.  So do all
- * the book-keeping now.
- */
 static int __init xen_mark_pinned(struct mm_struct *mm, struct page *page,
 				  enum pt_level level)
 {
@@ -848,8 +852,18 @@ static int __init xen_mark_pinned(struct mm_struct *mm, struct page *page,
 	return 0;
 }
 
-static void __init xen_mark_init_mm_pinned(void)
+/*
+ * The init_mm pagetable is really pinned as soon as its created, but
+ * that's before we have page structures to store the bits.  So do all
+ * the book-keeping now once struct pages for allocated pages are
+ * initialized. This happens only after free_all_bootmem() is called.
+ */
+static void __init xen_after_bootmem(void)
 {
+	static_branch_enable(&xen_struct_pages_ready);
+#ifdef CONFIG_X86_64
+	SetPagePinned(virt_to_page(level3_user_vsyscall));
+#endif
 	xen_pgd_walk(&init_mm, xen_mark_pinned, FIXADDR_TOP);
 }
 
@@ -1623,14 +1637,15 @@ static inline void __set_pfn_prot(unsigned long pfn, pgprot_t prot)
 static inline void xen_alloc_ptpage(struct mm_struct *mm, unsigned long pfn,
 				    unsigned level)
 {
-	bool pinned = PagePinned(virt_to_page(mm->pgd));
+	bool pinned = xen_page_pinned(mm->pgd);
 
 	trace_xen_mmu_alloc_ptpage(mm, pfn, level, pinned);
 
 	if (pinned) {
 		struct page *page = pfn_to_page(pfn);
 
-		SetPagePinned(page);
+		if (static_branch_likely(&xen_struct_pages_ready))
+			SetPagePinned(page);
 
 		if (!PageHighMem(page)) {
 			xen_mc_batch();
@@ -2364,9 +2379,7 @@ static void __init xen_post_allocator_init(void)
 
 #ifdef CONFIG_X86_64
 	pv_mmu_ops.write_cr3 = &xen_write_cr3;
-	SetPagePinned(virt_to_page(level3_user_vsyscall));
 #endif
-	xen_mark_init_mm_pinned();
 }
 
 static void xen_leave_lazy_mmu(void)
@@ -2450,6 +2463,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
 void __init xen_init_mmu_ops(void)
 {
 	x86_init.paging.pagetable_init = xen_pagetable_init;
+	x86_init.hyper.init_after_bootmem = xen_after_bootmem;
 
 	pv_mmu_ops = xen_mmu_ops;
 
diff --git a/arch/x86/xen/smp_pv.c b/arch/x86/xen/smp_pv.c
index c0c756c76afe..2e20ae2fa2d6 100644
--- a/arch/x86/xen/smp_pv.c
+++ b/arch/x86/xen/smp_pv.c
@@ -425,6 +425,7 @@ static void xen_pv_play_dead(void) /* used only with HOTPLUG_CPU */
 	 * data back is to call:
 	 */
 	tick_nohz_idle_enter();
+	tick_nohz_idle_stop_tick_protected();
 
 	cpuhp_online_idle(CPUHP_AP_ONLINE_IDLE);
 }
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index 96f26e026783..5077ead5e59c 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -89,7 +89,9 @@ END(hypercall_page)
 	ELFNOTE(Xen, XEN_ELFNOTE_FEATURES,
 		.ascii "!writable_page_tables|pae_pgdir_above_4gb")
 	ELFNOTE(Xen, XEN_ELFNOTE_SUPPORTED_FEATURES,
-		.long (1 << XENFEAT_writable_page_tables) | (1 << XENFEAT_dom0))
+		.long (1 << XENFEAT_writable_page_tables) |       \
+		      (1 << XENFEAT_dom0) |                       \
+		      (1 << XENFEAT_linux_rsdp_unrestricted))
 	ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE,       .asciz "yes")
 	ELFNOTE(Xen, XEN_ELFNOTE_LOADER,         .asciz "generic")
 	ELFNOTE(Xen, XEN_ELFNOTE_L1_MFN_VALID,