diff options
Diffstat (limited to 'arch/arm64/include')
| -rw-r--r-- | arch/arm64/include/asm/cpufeature.h | 2 | ||||
| -rw-r--r-- | arch/arm64/include/asm/extable.h | 25 | ||||
| -rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 3 | ||||
| -rw-r--r-- | arch/arm64/include/asm/pgtable-types.h | 4 | ||||
| -rw-r--r-- | arch/arm64/include/asm/uaccess.h | 83 | ||||
| -rw-r--r-- | arch/arm64/include/asm/unistd.h | 2 | ||||
| -rw-r--r-- | arch/arm64/include/asm/unistd32.h | 8 |
7 files changed, 46 insertions, 81 deletions
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h index 05310ad8c5ab..f31c48d0cd68 100644 --- a/arch/arm64/include/asm/cpufeature.h +++ b/arch/arm64/include/asm/cpufeature.h @@ -251,7 +251,7 @@ static inline bool system_supports_fpsimd(void) static inline bool system_uses_ttbr0_pan(void) { return IS_ENABLED(CONFIG_ARM64_SW_TTBR0_PAN) && - !cpus_have_cap(ARM64_HAS_PAN); + !cpus_have_const_cap(ARM64_HAS_PAN); } #endif /* __ASSEMBLY__ */ diff --git a/arch/arm64/include/asm/extable.h b/arch/arm64/include/asm/extable.h new file mode 100644 index 000000000000..42f50f15a44c --- /dev/null +++ b/arch/arm64/include/asm/extable.h @@ -0,0 +1,25 @@ +#ifndef __ASM_EXTABLE_H +#define __ASM_EXTABLE_H + +/* + * The exception table consists of pairs of relative offsets: the first + * is the relative offset to an instruction that is allowed to fault, + * and the second is the relative offset at which the program should + * continue. No registers are modified, so it is entirely up to the + * continuation code to figure out what to do. + * + * All the routines below use bits of fixup code that are out of line + * with the main instruction path. This means when everything is well, + * we don't even have to jump over them. Further, they do not intrude + * on our cache or tlb entries. + */ + +struct exception_table_entry +{ + int insn, fixup; +}; + +#define ARCH_HAS_RELATIVE_EXTABLE + +extern int fixup_exception(struct pt_regs *regs); +#endif diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index f21fd3894370..e7705e7bb07b 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -30,8 +30,7 @@ #define __KVM_HAVE_ARCH_INTC_INITIALIZED -#define KVM_USER_MEM_SLOTS 32 -#define KVM_PRIVATE_MEM_SLOTS 4 +#define KVM_USER_MEM_SLOTS 512 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 #define KVM_HALT_POLL_NS_DEFAULT 500000 diff --git a/arch/arm64/include/asm/pgtable-types.h b/arch/arm64/include/asm/pgtable-types.h index 69b2fd41503c..345a072b5856 100644 --- a/arch/arm64/include/asm/pgtable-types.h +++ b/arch/arm64/include/asm/pgtable-types.h @@ -55,9 +55,13 @@ typedef struct { pteval_t pgprot; } pgprot_t; #define __pgprot(x) ((pgprot_t) { (x) } ) #if CONFIG_PGTABLE_LEVELS == 2 +#define __ARCH_USE_5LEVEL_HACK #include <asm-generic/pgtable-nopmd.h> #elif CONFIG_PGTABLE_LEVELS == 3 +#define __ARCH_USE_5LEVEL_HACK #include <asm-generic/pgtable-nopud.h> +#elif CONFIG_PGTABLE_LEVELS == 4 +#include <asm-generic/5level-fixup.h> #endif #endif /* __ASM_PGTABLE_TYPES_H */ diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h index 5308d696311b..ba497172610d 100644 --- a/arch/arm64/include/asm/uaccess.h +++ b/arch/arm64/include/asm/uaccess.h @@ -28,38 +28,12 @@ #include <linux/bitops.h> #include <linux/kasan-checks.h> #include <linux/string.h> -#include <linux/thread_info.h> #include <asm/cpufeature.h> #include <asm/ptrace.h> -#include <asm/errno.h> #include <asm/memory.h> #include <asm/compiler.h> - -#define VERIFY_READ 0 -#define VERIFY_WRITE 1 - -/* - * The exception table consists of pairs of relative offsets: the first - * is the relative offset to an instruction that is allowed to fault, - * and the second is the relative offset at which the program should - * continue. No registers are modified, so it is entirely up to the - * continuation code to figure out what to do. - * - * All the routines below use bits of fixup code that are out of line - * with the main instruction path. This means when everything is well, - * we don't even have to jump over them. Further, they do not intrude - * on our cache or tlb entries. - */ - -struct exception_table_entry -{ - int insn, fixup; -}; - -#define ARCH_HAS_RELATIVE_EXTABLE - -extern int fixup_exception(struct pt_regs *regs); +#include <asm/extable.h> #define KERNEL_DS (-1UL) #define get_ds() (KERNEL_DS) @@ -357,58 +331,13 @@ do { \ }) extern unsigned long __must_check __arch_copy_from_user(void *to, const void __user *from, unsigned long n); +#define raw_copy_from_user __arch_copy_from_user extern unsigned long __must_check __arch_copy_to_user(void __user *to, const void *from, unsigned long n); -extern unsigned long __must_check __copy_in_user(void __user *to, const void __user *from, unsigned long n); +#define raw_copy_to_user __arch_copy_to_user +extern unsigned long __must_check raw_copy_in_user(void __user *to, const void __user *from, unsigned long n); extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n); - -static inline unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n) -{ - kasan_check_write(to, n); - check_object_size(to, n, false); - return __arch_copy_from_user(to, from, n); -} - -static inline unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n) -{ - kasan_check_read(from, n); - check_object_size(from, n, true); - return __arch_copy_to_user(to, from, n); -} - -static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n) -{ - unsigned long res = n; - kasan_check_write(to, n); - check_object_size(to, n, false); - - if (access_ok(VERIFY_READ, from, n)) { - res = __arch_copy_from_user(to, from, n); - } - if (unlikely(res)) - memset(to + (n - res), 0, res); - return res; -} - -static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n) -{ - kasan_check_read(from, n); - check_object_size(from, n, true); - - if (access_ok(VERIFY_WRITE, to, n)) { - n = __arch_copy_to_user(to, from, n); - } - return n; -} - -static inline unsigned long __must_check copy_in_user(void __user *to, const void __user *from, unsigned long n) -{ - if (access_ok(VERIFY_READ, from, n) && access_ok(VERIFY_WRITE, to, n)) - n = __copy_in_user(to, from, n); - return n; -} - -#define __copy_to_user_inatomic __copy_to_user -#define __copy_from_user_inatomic __copy_from_user +#define INLINE_COPY_TO_USER +#define INLINE_COPY_FROM_USER static inline unsigned long __must_check clear_user(void __user *to, unsigned long n) { diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h index e78ac26324bd..bdbeb06dc11e 100644 --- a/arch/arm64/include/asm/unistd.h +++ b/arch/arm64/include/asm/unistd.h @@ -44,7 +44,7 @@ #define __ARM_NR_compat_cacheflush (__ARM_NR_COMPAT_BASE+2) #define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE+5) -#define __NR_compat_syscalls 394 +#define __NR_compat_syscalls 398 #endif #define __ARCH_WANT_SYS_CLONE diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h index b7e8ef16ff0d..c66b51aab195 100644 --- a/arch/arm64/include/asm/unistd32.h +++ b/arch/arm64/include/asm/unistd32.h @@ -809,6 +809,14 @@ __SYSCALL(__NR_copy_file_range, sys_copy_file_range) __SYSCALL(__NR_preadv2, compat_sys_preadv2) #define __NR_pwritev2 393 __SYSCALL(__NR_pwritev2, compat_sys_pwritev2) +#define __NR_pkey_mprotect 394 +__SYSCALL(__NR_pkey_mprotect, sys_pkey_mprotect) +#define __NR_pkey_alloc 395 +__SYSCALL(__NR_pkey_alloc, sys_pkey_alloc) +#define __NR_pkey_free 396 +__SYSCALL(__NR_pkey_free, sys_pkey_free) +#define __NR_statx 397 +__SYSCALL(__NR_statx, sys_statx) /* * Please add new compat syscalls above this comment and update |