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-rw-r--r--arch/x86/include/asm/a.out-core.h67
-rw-r--r--arch/x86/include/asm/alternative.h39
-rw-r--r--arch/x86/include/asm/asm-prototypes.h1
-rw-r--r--arch/x86/include/asm/cpu_device_id.h28
-rw-r--r--arch/x86/include/asm/efi.h1
-rw-r--r--arch/x86/include/asm/hyperv-tlfs.h2
-rw-r--r--arch/x86/include/asm/intel-family.h2
-rw-r--r--arch/x86/include/asm/kvm_host.h2
-rw-r--r--arch/x86/include/asm/msr.h16
-rw-r--r--arch/x86/include/asm/paravirt.h13
-rw-r--r--arch/x86/include/asm/paravirt_types.h5
-rw-r--r--arch/x86/include/asm/pci.h3
-rw-r--r--arch/x86/include/asm/processor.h1
-rw-r--r--arch/x86/include/asm/refcount.h22
-rw-r--r--arch/x86/include/asm/uaccess.h34
-rw-r--r--arch/x86/include/asm/unistd.h8
-rw-r--r--arch/x86/include/asm/uv/bios.h8
17 files changed, 136 insertions, 116 deletions
diff --git a/arch/x86/include/asm/a.out-core.h b/arch/x86/include/asm/a.out-core.h
deleted file mode 100644
index 7d3ece8bfb616..0000000000000
--- a/arch/x86/include/asm/a.out-core.h
+++ /dev/null
@@ -1,67 +0,0 @@
-/* a.out coredump register dumper
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_X86_A_OUT_CORE_H
-#define _ASM_X86_A_OUT_CORE_H
-
-#ifdef __KERNEL__
-#ifdef CONFIG_X86_32
-
-#include <linux/user.h>
-#include <linux/elfcore.h>
-#include <linux/mm_types.h>
-
-#include <asm/debugreg.h>
-
-/*
- * fill in the user structure for an a.out core dump
- */
-static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
-{
-/* changed the size calculations - should hopefully work better. lbt */
- dump->magic = CMAGIC;
- dump->start_code = 0;
- dump->start_stack = regs->sp & ~(PAGE_SIZE - 1);
- dump->u_tsize = ((unsigned long)current->mm->end_code) >> PAGE_SHIFT;
- dump->u_dsize = ((unsigned long)(current->mm->brk + (PAGE_SIZE - 1)))
- >> PAGE_SHIFT;
- dump->u_dsize -= dump->u_tsize;
- dump->u_ssize = 0;
- aout_dump_debugregs(dump);
-
- if (dump->start_stack < TASK_SIZE)
- dump->u_ssize = ((unsigned long)(TASK_SIZE - dump->start_stack))
- >> PAGE_SHIFT;
-
- dump->regs.bx = regs->bx;
- dump->regs.cx = regs->cx;
- dump->regs.dx = regs->dx;
- dump->regs.si = regs->si;
- dump->regs.di = regs->di;
- dump->regs.bp = regs->bp;
- dump->regs.ax = regs->ax;
- dump->regs.ds = (u16)regs->ds;
- dump->regs.es = (u16)regs->es;
- dump->regs.fs = (u16)regs->fs;
- dump->regs.gs = get_user_gs(regs);
- dump->regs.orig_ax = regs->orig_ax;
- dump->regs.ip = regs->ip;
- dump->regs.cs = (u16)regs->cs;
- dump->regs.flags = regs->flags;
- dump->regs.sp = regs->sp;
- dump->regs.ss = (u16)regs->ss;
-
- dump->u_fpvalid = dump_fpu(regs, &dump->i387);
-}
-
-#endif /* CONFIG_X86_32 */
-#endif /* __KERNEL__ */
-#endif /* _ASM_X86_A_OUT_CORE_H */
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 0660e14690c8b..4c74073a19ccd 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -94,13 +94,12 @@ static inline int alternatives_text_reserved(void *start, void *end)
#define alt_total_slen alt_end_marker"b-661b"
#define alt_rlen(num) e_replacement(num)"f-"b_replacement(num)"f"
-#define __OLDINSTR(oldinstr, num) \
+#define OLDINSTR(oldinstr, num) \
+ "# ALT: oldnstr\n" \
"661:\n\t" oldinstr "\n662:\n" \
+ "# ALT: padding\n" \
".skip -(((" alt_rlen(num) ")-(" alt_slen ")) > 0) * " \
- "((" alt_rlen(num) ")-(" alt_slen ")),0x90\n"
-
-#define OLDINSTR(oldinstr, num) \
- __OLDINSTR(oldinstr, num) \
+ "((" alt_rlen(num) ")-(" alt_slen ")),0x90\n" \
alt_end_marker ":\n"
/*
@@ -116,11 +115,23 @@ static inline int alternatives_text_reserved(void *start, void *end)
* additionally longer than the first replacement alternative.
*/
#define OLDINSTR_2(oldinstr, num1, num2) \
+ "# ALT: oldinstr2\n" \
"661:\n\t" oldinstr "\n662:\n" \
+ "# ALT: padding2\n" \
".skip -((" alt_max_short(alt_rlen(num1), alt_rlen(num2)) " - (" alt_slen ")) > 0) * " \
"(" alt_max_short(alt_rlen(num1), alt_rlen(num2)) " - (" alt_slen ")), 0x90\n" \
alt_end_marker ":\n"
+#define OLDINSTR_3(oldinsn, n1, n2, n3) \
+ "# ALT: oldinstr3\n" \
+ "661:\n\t" oldinsn "\n662:\n" \
+ "# ALT: padding3\n" \
+ ".skip -((" alt_max_short(alt_max_short(alt_rlen(n1), alt_rlen(n2)), alt_rlen(n3)) \
+ " - (" alt_slen ")) > 0) * " \
+ "(" alt_max_short(alt_max_short(alt_rlen(n1), alt_rlen(n2)), alt_rlen(n3)) \
+ " - (" alt_slen ")), 0x90\n" \
+ alt_end_marker ":\n"
+
#define ALTINSTR_ENTRY(feature, num) \
" .long 661b - .\n" /* label */ \
" .long " b_replacement(num)"f - .\n" /* new instruction */ \
@@ -129,8 +140,9 @@ static inline int alternatives_text_reserved(void *start, void *end)
" .byte " alt_rlen(num) "\n" /* replacement len */ \
" .byte " alt_pad_len "\n" /* pad len */
-#define ALTINSTR_REPLACEMENT(newinstr, feature, num) /* replacement */ \
- b_replacement(num)":\n\t" newinstr "\n" e_replacement(num) ":\n\t"
+#define ALTINSTR_REPLACEMENT(newinstr, feature, num) /* replacement */ \
+ "# ALT: replacement " #num "\n" \
+ b_replacement(num)":\n\t" newinstr "\n" e_replacement(num) ":\n"
/* alternative assembly primitive: */
#define ALTERNATIVE(oldinstr, newinstr, feature) \
@@ -153,6 +165,19 @@ static inline int alternatives_text_reserved(void *start, void *end)
ALTINSTR_REPLACEMENT(newinstr2, feature2, 2) \
".popsection\n"
+#define ALTERNATIVE_3(oldinsn, newinsn1, feat1, newinsn2, feat2, newinsn3, feat3) \
+ OLDINSTR_3(oldinsn, 1, 2, 3) \
+ ".pushsection .altinstructions,\"a\"\n" \
+ ALTINSTR_ENTRY(feat1, 1) \
+ ALTINSTR_ENTRY(feat2, 2) \
+ ALTINSTR_ENTRY(feat3, 3) \
+ ".popsection\n" \
+ ".pushsection .altinstr_replacement, \"ax\"\n" \
+ ALTINSTR_REPLACEMENT(newinsn1, feat1, 1) \
+ ALTINSTR_REPLACEMENT(newinsn2, feat2, 2) \
+ ALTINSTR_REPLACEMENT(newinsn3, feat3, 3) \
+ ".popsection\n"
+
/*
* Alternative instructions for different CPU types or capabilities.
*
diff --git a/arch/x86/include/asm/asm-prototypes.h b/arch/x86/include/asm/asm-prototypes.h
index 1908214b91257..ce92c4acc9133 100644
--- a/arch/x86/include/asm/asm-prototypes.h
+++ b/arch/x86/include/asm/asm-prototypes.h
@@ -7,7 +7,6 @@
#include <asm-generic/asm-prototypes.h>
-#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/special_insns.h>
#include <asm/preempt.h>
diff --git a/arch/x86/include/asm/cpu_device_id.h b/arch/x86/include/asm/cpu_device_id.h
index baeba05671268..3417110574c12 100644
--- a/arch/x86/include/asm/cpu_device_id.h
+++ b/arch/x86/include/asm/cpu_device_id.h
@@ -11,4 +11,32 @@
extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match);
+/*
+ * Match specific microcode revisions.
+ *
+ * vendor/family/model/stepping must be all set.
+ *
+ * Only checks against the boot CPU. When mixed-stepping configs are
+ * valid for a CPU model, add a quirk for every valid stepping and
+ * do the fine-tuning in the quirk handler.
+ */
+
+struct x86_cpu_desc {
+ __u8 x86_family;
+ __u8 x86_vendor;
+ __u8 x86_model;
+ __u8 x86_stepping;
+ __u32 x86_microcode_rev;
+};
+
+#define INTEL_CPU_DESC(mod, step, rev) { \
+ .x86_family = 6, \
+ .x86_vendor = X86_VENDOR_INTEL, \
+ .x86_model = mod, \
+ .x86_stepping = step, \
+ .x86_microcode_rev = rev, \
+}
+
+extern bool x86_cpu_has_min_microcode_rev(const struct x86_cpu_desc *table);
+
#endif
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 107283b1eb1e4..606a4b6a9812c 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -170,7 +170,6 @@ static inline bool efi_runtime_supported(void)
return false;
}
-extern struct console early_efi_console;
extern void parse_efi_setup(u64 phys_addr, u32 data_len);
extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
diff --git a/arch/x86/include/asm/hyperv-tlfs.h b/arch/x86/include/asm/hyperv-tlfs.h
index 705dafc2d11ab..2bdbbbcfa393f 100644
--- a/arch/x86/include/asm/hyperv-tlfs.h
+++ b/arch/x86/include/asm/hyperv-tlfs.h
@@ -841,7 +841,7 @@ union hv_gpa_page_range {
* count is equal with how many entries of union hv_gpa_page_range can
* be populated into the input parameter page.
*/
-#define HV_MAX_FLUSH_REP_COUNT (PAGE_SIZE - 2 * sizeof(u64) / \
+#define HV_MAX_FLUSH_REP_COUNT ((PAGE_SIZE - 2 * sizeof(u64)) / \
sizeof(union hv_gpa_page_range))
struct hv_guest_mapping_flush_list {
diff --git a/arch/x86/include/asm/intel-family.h b/arch/x86/include/asm/intel-family.h
index d9a9993af882a..9f15384c504a4 100644
--- a/arch/x86/include/asm/intel-family.h
+++ b/arch/x86/include/asm/intel-family.h
@@ -52,6 +52,8 @@
#define INTEL_FAM6_CANNONLAKE_MOBILE 0x66
+#define INTEL_FAM6_ICELAKE_MOBILE 0x7E
+
/* "Small Core" Processors (Atom) */
#define INTEL_FAM6_ATOM_BONNELL 0x1C /* Diamondville, Pineview */
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 4660ce90de7ff..180373360e342 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -299,6 +299,7 @@ union kvm_mmu_extended_role {
unsigned int cr4_smap:1;
unsigned int cr4_smep:1;
unsigned int cr4_la57:1;
+ unsigned int maxphyaddr:6;
};
};
@@ -397,6 +398,7 @@ struct kvm_mmu {
void (*update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
u64 *spte, const void *pte);
hpa_t root_hpa;
+ gpa_t root_cr3;
union kvm_mmu_role mmu_role;
u8 root_level;
u8 shadow_root_level;
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 91e4cf189914a..5cc3930cb465e 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -217,6 +217,8 @@ static __always_inline unsigned long long rdtsc(void)
*/
static __always_inline unsigned long long rdtsc_ordered(void)
{
+ DECLARE_ARGS(val, low, high);
+
/*
* The RDTSC instruction is not ordered relative to memory
* access. The Intel SDM and the AMD APM are both vague on this
@@ -227,9 +229,19 @@ static __always_inline unsigned long long rdtsc_ordered(void)
* ordering guarantees as reading from a global memory location
* that some other imaginary CPU is updating continuously with a
* time stamp.
+ *
+ * Thus, use the preferred barrier on the respective CPU, aiming for
+ * RDTSCP as the default.
*/
- barrier_nospec();
- return rdtsc();
+ asm volatile(ALTERNATIVE_3("rdtsc",
+ "mfence; rdtsc", X86_FEATURE_MFENCE_RDTSC,
+ "lfence; rdtsc", X86_FEATURE_LFENCE_RDTSC,
+ "rdtscp", X86_FEATURE_RDTSCP)
+ : EAX_EDX_RET(val, low, high)
+ /* RDTSCP clobbers ECX with MSR_TSC_AUX. */
+ :: "ecx");
+
+ return EAX_EDX_VAL(val, low, high);
}
static inline unsigned long long native_read_pmc(int counter)
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index a97f28d914d56..c25c38a05c1c9 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -422,25 +422,26 @@ static inline pgdval_t pgd_val(pgd_t pgd)
}
#define __HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION
-static inline pte_t ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr,
+static inline pte_t ptep_modify_prot_start(struct vm_area_struct *vma, unsigned long addr,
pte_t *ptep)
{
pteval_t ret;
- ret = PVOP_CALL3(pteval_t, mmu.ptep_modify_prot_start, mm, addr, ptep);
+ ret = PVOP_CALL3(pteval_t, mmu.ptep_modify_prot_start, vma, addr, ptep);
return (pte_t) { .pte = ret };
}
-static inline void ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pte)
+static inline void ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr,
+ pte_t *ptep, pte_t old_pte, pte_t pte)
{
+
if (sizeof(pteval_t) > sizeof(long))
/* 5 arg words */
- pv_ops.mmu.ptep_modify_prot_commit(mm, addr, ptep, pte);
+ pv_ops.mmu.ptep_modify_prot_commit(vma, addr, ptep, pte);
else
PVOP_VCALL4(mmu.ptep_modify_prot_commit,
- mm, addr, ptep, pte.pte);
+ vma, addr, ptep, pte.pte);
}
static inline void set_pte(pte_t *ptep, pte_t pte)
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 488c59686a733..2474e434a6f72 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -55,6 +55,7 @@ struct task_struct;
struct cpumask;
struct flush_tlb_info;
struct mmu_gather;
+struct vm_area_struct;
/*
* Wrapper type for pointers to code which uses the non-standard
@@ -254,9 +255,9 @@ struct pv_mmu_ops {
pte_t *ptep, pte_t pteval);
void (*set_pmd)(pmd_t *pmdp, pmd_t pmdval);
- pte_t (*ptep_modify_prot_start)(struct mm_struct *mm, unsigned long addr,
+ pte_t (*ptep_modify_prot_start)(struct vm_area_struct *vma, unsigned long addr,
pte_t *ptep);
- void (*ptep_modify_prot_commit)(struct mm_struct *mm, unsigned long addr,
+ void (*ptep_modify_prot_commit)(struct vm_area_struct *vma, unsigned long addr,
pte_t *ptep, pte_t pte);
struct paravirt_callee_save pte_val;
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 662963681ea6c..e662f987dfa2c 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -7,6 +7,7 @@
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/scatterlist.h>
+#include <linux/numa.h>
#include <asm/io.h>
#include <asm/pat.h>
#include <asm/x86_init.h>
@@ -141,7 +142,7 @@ cpumask_of_pcibus(const struct pci_bus *bus)
int node;
node = __pcibus_to_node(bus);
- return (node == -1) ? cpu_online_mask :
+ return (node == NUMA_NO_NODE) ? cpu_online_mask :
cpumask_of_node(node);
}
#endif
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 33051436c8645..2bb3a648fc12c 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -742,7 +742,6 @@ enum idle_boot_override {IDLE_NO_OVERRIDE=0, IDLE_HALT, IDLE_NOMWAIT,
extern void enable_sep_cpu(void);
extern int sysenter_setup(void);
-void early_trap_pf_init(void);
/* Defined in head.S */
extern struct desc_ptr early_gdt_descr;
diff --git a/arch/x86/include/asm/refcount.h b/arch/x86/include/asm/refcount.h
index dbaed55c1c244..232f856e0db06 100644
--- a/arch/x86/include/asm/refcount.h
+++ b/arch/x86/include/asm/refcount.h
@@ -67,16 +67,30 @@ static __always_inline void refcount_dec(refcount_t *r)
static __always_inline __must_check
bool refcount_sub_and_test(unsigned int i, refcount_t *r)
{
- return GEN_BINARY_SUFFIXED_RMWcc(LOCK_PREFIX "subl",
+ bool ret = GEN_BINARY_SUFFIXED_RMWcc(LOCK_PREFIX "subl",
REFCOUNT_CHECK_LT_ZERO,
r->refs.counter, e, "er", i, "cx");
+
+ if (ret) {
+ smp_acquire__after_ctrl_dep();
+ return true;
+ }
+
+ return false;
}
static __always_inline __must_check bool refcount_dec_and_test(refcount_t *r)
{
- return GEN_UNARY_SUFFIXED_RMWcc(LOCK_PREFIX "decl",
- REFCOUNT_CHECK_LT_ZERO,
- r->refs.counter, e, "cx");
+ bool ret = GEN_UNARY_SUFFIXED_RMWcc(LOCK_PREFIX "decl",
+ REFCOUNT_CHECK_LT_ZERO,
+ r->refs.counter, e, "cx");
+
+ if (ret) {
+ smp_acquire__after_ctrl_dep();
+ return true;
+ }
+
+ return false;
}
static __always_inline __must_check
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 780f2b42c8efe..1954dd5552a2e 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -25,7 +25,6 @@
#define KERNEL_DS MAKE_MM_SEG(-1UL)
#define USER_DS MAKE_MM_SEG(TASK_SIZE_MAX)
-#define get_ds() (KERNEL_DS)
#define get_fs() (current->thread.addr_limit)
static inline void set_fs(mm_segment_t fs)
{
@@ -35,10 +34,7 @@ static inline void set_fs(mm_segment_t fs)
}
#define segment_eq(a, b) ((a).seg == (b).seg)
-
#define user_addr_max() (current->thread.addr_limit.seg)
-#define __addr_ok(addr) \
- ((unsigned long __force)(addr) < user_addr_max())
/*
* Test whether a block of memory is a valid user space address.
@@ -76,7 +72,7 @@ static inline bool __chk_range_not_ok(unsigned long addr, unsigned long size, un
#endif
/**
- * access_ok: - Checks if a user space pointer is valid
+ * access_ok - Checks if a user space pointer is valid
* @addr: User space pointer to start of block to check
* @size: Size of block to check
*
@@ -85,12 +81,12 @@ static inline bool __chk_range_not_ok(unsigned long addr, unsigned long size, un
*
* Checks if a pointer to a block of memory in user space is valid.
*
- * Returns true (nonzero) if the memory block may be valid, false (zero)
- * if it is definitely invalid.
- *
* Note that, depending on architecture, this function probably just
* checks that the pointer is in the user space range - after calling
* this function, memory access functions may still return -EFAULT.
+ *
+ * Return: true (nonzero) if the memory block may be valid, false (zero)
+ * if it is definitely invalid.
*/
#define access_ok(addr, size) \
({ \
@@ -135,7 +131,7 @@ extern int __get_user_bad(void);
__typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
/**
- * get_user: - Get a simple variable from user space.
+ * get_user - Get a simple variable from user space.
* @x: Variable to store result.
* @ptr: Source address, in user space.
*
@@ -149,7 +145,7 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
* @ptr must have pointer-to-simple-variable type, and the result of
* dereferencing @ptr must be assignable to @x without a cast.
*
- * Returns zero on success, or -EFAULT on error.
+ * Return: zero on success, or -EFAULT on error.
* On error, the variable @x is set to zero.
*/
/*
@@ -227,7 +223,7 @@ extern void __put_user_4(void);
extern void __put_user_8(void);
/**
- * put_user: - Write a simple value into user space.
+ * put_user - Write a simple value into user space.
* @x: Value to copy to user space.
* @ptr: Destination address, in user space.
*
@@ -241,7 +237,7 @@ extern void __put_user_8(void);
* @ptr must have pointer-to-simple-variable type, and @x must be assignable
* to the result of dereferencing @ptr.
*
- * Returns zero on success, or -EFAULT on error.
+ * Return: zero on success, or -EFAULT on error.
*/
#define put_user(x, ptr) \
({ \
@@ -284,7 +280,7 @@ do { \
__put_user_goto(x, ptr, "l", "k", "ir", label); \
break; \
case 8: \
- __put_user_goto_u64((__typeof__(*ptr))(x), ptr, label); \
+ __put_user_goto_u64(x, ptr, label); \
break; \
default: \
__put_user_bad(); \
@@ -431,8 +427,10 @@ do { \
({ \
__label__ __pu_label; \
int __pu_err = -EFAULT; \
+ __typeof__(*(ptr)) __pu_val; \
+ __pu_val = x; \
__uaccess_begin(); \
- __put_user_size((x), (ptr), (size), __pu_label); \
+ __put_user_size(__pu_val, (ptr), (size), __pu_label); \
__pu_err = 0; \
__pu_label: \
__uaccess_end(); \
@@ -501,7 +499,7 @@ struct __large_struct { unsigned long buf[100]; };
} while (0)
/**
- * __get_user: - Get a simple variable from user space, with less checking.
+ * __get_user - Get a simple variable from user space, with less checking.
* @x: Variable to store result.
* @ptr: Source address, in user space.
*
@@ -518,7 +516,7 @@ struct __large_struct { unsigned long buf[100]; };
* Caller must check the pointer with access_ok() before calling this
* function.
*
- * Returns zero on success, or -EFAULT on error.
+ * Return: zero on success, or -EFAULT on error.
* On error, the variable @x is set to zero.
*/
@@ -526,7 +524,7 @@ struct __large_struct { unsigned long buf[100]; };
__get_user_nocheck((x), (ptr), sizeof(*(ptr)))
/**
- * __put_user: - Write a simple value into user space, with less checking.
+ * __put_user - Write a simple value into user space, with less checking.
* @x: Value to copy to user space.
* @ptr: Destination address, in user space.
*
@@ -543,7 +541,7 @@ struct __large_struct { unsigned long buf[100]; };
* Caller must check the pointer with access_ok() before calling this
* function.
*
- * Returns zero on success, or -EFAULT on error.
+ * Return: zero on success, or -EFAULT on error.
*/
#define __put_user(x, ptr) \
diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h
index dc4ed8bc2382c..146859efd83c6 100644
--- a/arch/x86/include/asm/unistd.h
+++ b/arch/x86/include/asm/unistd.h
@@ -23,8 +23,8 @@
# include <asm/unistd_64.h>
# include <asm/unistd_64_x32.h>
-# define __ARCH_WANT_COMPAT_SYS_TIME
-# define __ARCH_WANT_SYS_UTIME32
+# define __ARCH_WANT_SYS_TIME
+# define __ARCH_WANT_SYS_UTIME
# define __ARCH_WANT_COMPAT_SYS_PREADV64
# define __ARCH_WANT_COMPAT_SYS_PWRITEV64
# define __ARCH_WANT_COMPAT_SYS_PREADV64V2
@@ -48,8 +48,8 @@
# define __ARCH_WANT_SYS_SIGPENDING
# define __ARCH_WANT_SYS_SIGPROCMASK
# define __ARCH_WANT_SYS_SOCKETCALL
-# define __ARCH_WANT_SYS_TIME
-# define __ARCH_WANT_SYS_UTIME
+# define __ARCH_WANT_SYS_TIME32
+# define __ARCH_WANT_SYS_UTIME32
# define __ARCH_WANT_SYS_WAITPID
# define __ARCH_WANT_SYS_FORK
# define __ARCH_WANT_SYS_VFORK
diff --git a/arch/x86/include/asm/uv/bios.h b/arch/x86/include/asm/uv/bios.h
index e652a7cc61863..3f697a9e3f59b 100644
--- a/arch/x86/include/asm/uv/bios.h
+++ b/arch/x86/include/asm/uv/bios.h
@@ -48,7 +48,8 @@ enum {
BIOS_STATUS_SUCCESS = 0,
BIOS_STATUS_UNIMPLEMENTED = -ENOSYS,
BIOS_STATUS_EINVAL = -EINVAL,
- BIOS_STATUS_UNAVAIL = -EBUSY
+ BIOS_STATUS_UNAVAIL = -EBUSY,
+ BIOS_STATUS_ABORT = -EINTR,
};
/* Address map parameters */
@@ -167,4 +168,9 @@ extern long system_serial_number;
extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */
+/*
+ * EFI runtime lock; cf. firmware/efi/runtime-wrappers.c for details
+ */
+extern struct semaphore __efi_uv_runtime_lock;
+
#endif /* _ASM_X86_UV_BIOS_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-16 04:55:50 +0000