diff options
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/compat.h | 1 | ||||
| -rw-r--r-- | arch/x86/include/asm/dma-mapping.h | 5 | ||||
| -rw-r--r-- | arch/x86/include/asm/hugetlb.h | 4 | ||||
| -rw-r--r-- | arch/x86/include/asm/iommu.h | 2 | ||||
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 50 | ||||
| -rw-r--r-- | arch/x86/include/asm/msr-index.h | 2 | ||||
| -rw-r--r-- | arch/x86/include/asm/pmem.h | 136 | ||||
| -rw-r--r-- | arch/x86/include/asm/string_64.h | 5 | ||||
| -rw-r--r-- | arch/x86/include/asm/uaccess.h | 1 | ||||
| -rw-r--r-- | arch/x86/include/asm/uaccess_64.h | 11 | ||||
| -rw-r--r-- | arch/x86/include/asm/xen/hypercall.h | 13 | ||||
| -rw-r--r-- | arch/x86/include/uapi/asm/Kbuild | 6 |
12 files changed, 65 insertions, 171 deletions
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h index 24118c0b4640..5343c19814b3 100644 --- a/arch/x86/include/asm/compat.h +++ b/arch/x86/include/asm/compat.h @@ -116,7 +116,6 @@ struct compat_statfs { int f_spare[4]; }; -#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff #define COMPAT_RLIM_INFINITY 0xffffffff typedef u32 compat_old_sigset_t; /* at least 32 bits */ diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index 08a0838b83fb..398c79889f5c 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -19,8 +19,6 @@ # define ISA_DMA_BIT_MASK DMA_BIT_MASK(32) #endif -#define DMA_ERROR_CODE 0 - extern int iommu_merge; extern struct device x86_dma_fallback_dev; extern int panic_on_overflow; @@ -35,9 +33,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp); #define arch_dma_alloc_attrs arch_dma_alloc_attrs -#define HAVE_ARCH_DMA_SUPPORTED 1 -extern int dma_supported(struct device *hwdev, u64 mask); - extern void *dma_generic_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr, gfp_t flag, unsigned long attrs); diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h index 3a106165e03a..535af0f2d8ac 100644 --- a/arch/x86/include/asm/hugetlb.h +++ b/arch/x86/include/asm/hugetlb.h @@ -85,4 +85,8 @@ static inline void arch_clear_hugepage_flags(struct page *page) { } +#ifdef CONFIG_ARCH_HAS_GIGANTIC_PAGE +static inline bool gigantic_page_supported(void) { return true; } +#endif + #endif /* _ASM_X86_HUGETLB_H */ diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h index 793869879464..fca144a104e4 100644 --- a/arch/x86/include/asm/iommu.h +++ b/arch/x86/include/asm/iommu.h @@ -6,6 +6,8 @@ extern int force_iommu, no_iommu; extern int iommu_detected; extern int iommu_pass_through; +int x86_dma_supported(struct device *dev, u64 mask); + /* 10 seconds */ #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 695605eb1dfb..1588e9e3dc01 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -48,28 +48,31 @@ #define KVM_IRQCHIP_NUM_PINS KVM_IOAPIC_NUM_PINS /* x86-specific vcpu->requests bit members */ -#define KVM_REQ_MIGRATE_TIMER 8 -#define KVM_REQ_REPORT_TPR_ACCESS 9 -#define KVM_REQ_TRIPLE_FAULT 10 -#define KVM_REQ_MMU_SYNC 11 -#define KVM_REQ_CLOCK_UPDATE 12 -#define KVM_REQ_EVENT 14 -#define KVM_REQ_APF_HALT 15 -#define KVM_REQ_STEAL_UPDATE 16 -#define KVM_REQ_NMI 17 -#define KVM_REQ_PMU 18 -#define KVM_REQ_PMI 19 -#define KVM_REQ_SMI 20 -#define KVM_REQ_MASTERCLOCK_UPDATE 21 -#define KVM_REQ_MCLOCK_INPROGRESS (22 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) -#define KVM_REQ_SCAN_IOAPIC (23 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) -#define KVM_REQ_GLOBAL_CLOCK_UPDATE 24 -#define KVM_REQ_APIC_PAGE_RELOAD (25 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) -#define KVM_REQ_HV_CRASH 26 -#define KVM_REQ_IOAPIC_EOI_EXIT 27 -#define KVM_REQ_HV_RESET 28 -#define KVM_REQ_HV_EXIT 29 -#define KVM_REQ_HV_STIMER 30 +#define KVM_REQ_MIGRATE_TIMER KVM_ARCH_REQ(0) +#define KVM_REQ_REPORT_TPR_ACCESS KVM_ARCH_REQ(1) +#define KVM_REQ_TRIPLE_FAULT KVM_ARCH_REQ(2) +#define KVM_REQ_MMU_SYNC KVM_ARCH_REQ(3) +#define KVM_REQ_CLOCK_UPDATE KVM_ARCH_REQ(4) +#define KVM_REQ_EVENT KVM_ARCH_REQ(6) +#define KVM_REQ_APF_HALT KVM_ARCH_REQ(7) +#define KVM_REQ_STEAL_UPDATE KVM_ARCH_REQ(8) +#define KVM_REQ_NMI KVM_ARCH_REQ(9) +#define KVM_REQ_PMU KVM_ARCH_REQ(10) +#define KVM_REQ_PMI KVM_ARCH_REQ(11) +#define KVM_REQ_SMI KVM_ARCH_REQ(12) +#define KVM_REQ_MASTERCLOCK_UPDATE KVM_ARCH_REQ(13) +#define KVM_REQ_MCLOCK_INPROGRESS \ + KVM_ARCH_REQ_FLAGS(14, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) +#define KVM_REQ_SCAN_IOAPIC \ + KVM_ARCH_REQ_FLAGS(15, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) +#define KVM_REQ_GLOBAL_CLOCK_UPDATE KVM_ARCH_REQ(16) +#define KVM_REQ_APIC_PAGE_RELOAD \ + KVM_ARCH_REQ_FLAGS(17, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) +#define KVM_REQ_HV_CRASH KVM_ARCH_REQ(18) +#define KVM_REQ_IOAPIC_EOI_EXIT KVM_ARCH_REQ(19) +#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 CR0_RESERVED_BITS \ (~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \ @@ -254,7 +257,8 @@ union kvm_mmu_page_role { unsigned cr0_wp:1; unsigned smep_andnot_wp:1; unsigned smap_andnot_wp:1; - unsigned :8; + unsigned ad_disabled:1; + unsigned :7; /* * This is left at the top of the word so that diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index d406894cd9a2..5573c75f8e4c 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -426,6 +426,8 @@ #define MSR_IA32_TSC_ADJUST 0x0000003b #define MSR_IA32_BNDCFGS 0x00000d90 +#define MSR_IA32_BNDCFGS_RSVD 0x00000ffc + #define MSR_IA32_XSS 0x00000da0 #define FEATURE_CONTROL_LOCKED (1<<0) diff --git a/arch/x86/include/asm/pmem.h b/arch/x86/include/asm/pmem.h deleted file mode 100644 index 0ff8fe71b255..000000000000 --- a/arch/x86/include/asm/pmem.h +++ /dev/null @@ -1,136 +0,0 @@ -/* - * Copyright(c) 2015 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - */ -#ifndef __ASM_X86_PMEM_H__ -#define __ASM_X86_PMEM_H__ - -#include <linux/uaccess.h> -#include <asm/cacheflush.h> -#include <asm/cpufeature.h> -#include <asm/special_insns.h> - -#ifdef CONFIG_ARCH_HAS_PMEM_API -/** - * arch_memcpy_to_pmem - copy data to persistent memory - * @dst: destination buffer for the copy - * @src: source buffer for the copy - * @n: length of the copy in bytes - * - * Copy data to persistent memory media via non-temporal stores so that - * a subsequent pmem driver flush operation will drain posted write queues. - */ -static inline void arch_memcpy_to_pmem(void *dst, const void *src, size_t n) -{ - int rem; - - /* - * We are copying between two kernel buffers, if - * __copy_from_user_inatomic_nocache() returns an error (page - * fault) we would have already reported a general protection fault - * before the WARN+BUG. - */ - rem = __copy_from_user_inatomic_nocache(dst, (void __user *) src, n); - if (WARN(rem, "%s: fault copying %p <- %p unwritten: %d\n", - __func__, dst, src, rem)) - BUG(); -} - -/** - * arch_wb_cache_pmem - write back a cache range with CLWB - * @vaddr: virtual start address - * @size: number of bytes to write back - * - * Write back a cache range using the CLWB (cache line write back) - * instruction. Note that @size is internally rounded up to be cache - * line size aligned. - */ -static inline void arch_wb_cache_pmem(void *addr, size_t size) -{ - u16 x86_clflush_size = boot_cpu_data.x86_clflush_size; - unsigned long clflush_mask = x86_clflush_size - 1; - void *vend = addr + size; - void *p; - - for (p = (void *)((unsigned long)addr & ~clflush_mask); - p < vend; p += x86_clflush_size) - clwb(p); -} - -/** - * arch_copy_from_iter_pmem - copy data from an iterator to PMEM - * @addr: PMEM destination address - * @bytes: number of bytes to copy - * @i: iterator with source data - * - * Copy data from the iterator 'i' to the PMEM buffer starting at 'addr'. - */ -static inline size_t arch_copy_from_iter_pmem(void *addr, size_t bytes, - struct iov_iter *i) -{ - size_t len; - - /* TODO: skip the write-back by always using non-temporal stores */ - len = copy_from_iter_nocache(addr, bytes, i); - - /* - * In the iovec case on x86_64 copy_from_iter_nocache() uses - * non-temporal stores for the bulk of the transfer, but we need - * to manually flush if the transfer is unaligned. A cached - * memory copy is used when destination or size is not naturally - * aligned. That is: - * - Require 8-byte alignment when size is 8 bytes or larger. - * - Require 4-byte alignment when size is 4 bytes. - * - * In the non-iovec case the entire destination needs to be - * flushed. - */ - if (iter_is_iovec(i)) { - unsigned long flushed, dest = (unsigned long) addr; - - if (bytes < 8) { - if (!IS_ALIGNED(dest, 4) || (bytes != 4)) - arch_wb_cache_pmem(addr, bytes); - } else { - if (!IS_ALIGNED(dest, 8)) { - dest = ALIGN(dest, boot_cpu_data.x86_clflush_size); - arch_wb_cache_pmem(addr, 1); - } - - flushed = dest - (unsigned long) addr; - if (bytes > flushed && !IS_ALIGNED(bytes - flushed, 8)) - arch_wb_cache_pmem(addr + bytes - 1, 1); - } - } else - arch_wb_cache_pmem(addr, bytes); - - return len; -} - -/** - * arch_clear_pmem - zero a PMEM memory range - * @addr: virtual start address - * @size: number of bytes to zero - * - * Write zeros into the memory range starting at 'addr' for 'size' bytes. - */ -static inline void arch_clear_pmem(void *addr, size_t size) -{ - memset(addr, 0, size); - arch_wb_cache_pmem(addr, size); -} - -static inline void arch_invalidate_pmem(void *addr, size_t size) -{ - clflush_cache_range(addr, size); -} -#endif /* CONFIG_ARCH_HAS_PMEM_API */ -#endif /* __ASM_X86_PMEM_H__ */ diff --git a/arch/x86/include/asm/string_64.h b/arch/x86/include/asm/string_64.h index 733bae07fb29..1f22bc277c45 100644 --- a/arch/x86/include/asm/string_64.h +++ b/arch/x86/include/asm/string_64.h @@ -109,6 +109,11 @@ memcpy_mcsafe(void *dst, const void *src, size_t cnt) return 0; } +#ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE +#define __HAVE_ARCH_MEMCPY_FLUSHCACHE 1 +void memcpy_flushcache(void *dst, const void *src, size_t cnt); +#endif + #endif /* __KERNEL__ */ #endif /* _ASM_X86_STRING_64_H */ diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index a059aac9e937..476ea27f490b 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -565,7 +565,6 @@ copy_from_user_nmi(void *to, const void __user *from, unsigned long n); extern __must_check long strncpy_from_user(char *dst, const char __user *src, long count); -extern __must_check long strlen_user(const char __user *str); extern __must_check long strnlen_user(const char __user *str, long n); unsigned long __must_check clear_user(void __user *mem, unsigned long len); diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h index c5504b9a472e..b16f6a1d8b26 100644 --- a/arch/x86/include/asm/uaccess_64.h +++ b/arch/x86/include/asm/uaccess_64.h @@ -171,6 +171,10 @@ unsigned long raw_copy_in_user(void __user *dst, const void __user *src, unsigne extern long __copy_user_nocache(void *dst, const void __user *src, unsigned size, int zerorest); +extern long __copy_user_flushcache(void *dst, const void __user *src, unsigned size); +extern void memcpy_page_flushcache(char *to, struct page *page, size_t offset, + size_t len); + static inline int __copy_from_user_inatomic_nocache(void *dst, const void __user *src, unsigned size) @@ -179,6 +183,13 @@ __copy_from_user_inatomic_nocache(void *dst, const void __user *src, return __copy_user_nocache(dst, src, size, 0); } +static inline int +__copy_from_user_flushcache(void *dst, const void __user *src, unsigned size) +{ + kasan_check_write(dst, size); + return __copy_user_flushcache(dst, src, size); +} + unsigned long copy_user_handle_tail(char *to, char *from, unsigned len); diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h index f6d20f6cca12..11071fcd630e 100644 --- a/arch/x86/include/asm/xen/hypercall.h +++ b/arch/x86/include/asm/xen/hypercall.h @@ -43,6 +43,7 @@ #include <asm/page.h> #include <asm/pgtable.h> +#include <asm/smap.h> #include <xen/interface/xen.h> #include <xen/interface/sched.h> @@ -50,6 +51,8 @@ #include <xen/interface/platform.h> #include <xen/interface/xen-mca.h> +struct xen_dm_op_buf; + /* * The hypercall asms have to meet several constraints: * - Work on 32- and 64-bit. @@ -214,10 +217,12 @@ privcmd_call(unsigned call, __HYPERCALL_DECLS; __HYPERCALL_5ARG(a1, a2, a3, a4, a5); + stac(); asm volatile("call *%[call]" : __HYPERCALL_5PARAM : [call] "a" (&hypercall_page[call]) : __HYPERCALL_CLOBBER5); + clac(); return (long)__res; } @@ -474,9 +479,13 @@ HYPERVISOR_xenpmu_op(unsigned int op, void *arg) static inline int HYPERVISOR_dm_op( - domid_t dom, unsigned int nr_bufs, void *bufs) + domid_t dom, unsigned int nr_bufs, struct xen_dm_op_buf *bufs) { - return _hypercall3(int, dm_op, dom, nr_bufs, bufs); + int ret; + stac(); + ret = _hypercall3(int, dm_op, dom, nr_bufs, bufs); + clac(); + return ret; } static inline void diff --git a/arch/x86/include/uapi/asm/Kbuild b/arch/x86/include/uapi/asm/Kbuild index 83b6e9a0dce4..da1489cb64dc 100644 --- a/arch/x86/include/uapi/asm/Kbuild +++ b/arch/x86/include/uapi/asm/Kbuild @@ -1,6 +1,6 @@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm -genhdr-y += unistd_32.h -genhdr-y += unistd_64.h -genhdr-y += unistd_x32.h +generated-y += unistd_32.h +generated-y += unistd_64.h +generated-y += unistd_x32.h |