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-rw-r--r--arch/x86/Kconfig1
-rw-r--r--arch/x86/entry/vdso/vma.c2
-rw-r--r--arch/x86/events/intel/lbr.c2
-rw-r--r--arch/x86/include/asm/iommu.h4
-rw-r--r--arch/x86/kernel/cpu/amd.c2
-rw-r--r--arch/x86/kernel/cpu/microcode/amd.c16
-rw-r--r--arch/x86/kernel/cpu/resctrl/core.c8
-rw-r--r--arch/x86/kernel/cpu/topology.c16
-rw-r--r--arch/x86/kernel/fpu/init.c8
-rw-r--r--arch/x86/kernel/fpu/xstate.c42
-rw-r--r--arch/x86/kernel/ftrace_64.S34
-rw-r--r--arch/x86/kernel/module.c2
-rw-r--r--arch/x86/kernel/process.c2
-rw-r--r--arch/x86/kernel/unwind_orc.c2
-rw-r--r--arch/x86/kvm/x86.c87
-rw-r--r--arch/x86/mm/pat/cpa-test.c4
-rw-r--r--arch/x86/net/bpf_jit_comp.c13
17 files changed, 159 insertions, 86 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 6d1879ef933a..67745ceab0db 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1973,7 +1973,6 @@ config EFI
config EFI_STUB
bool "EFI stub support"
depends on EFI
- depends on $(cc-option,-mabi=ms) || X86_32
select RELOCATABLE
help
This kernel feature allows a bzImage to be loaded directly
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 6292b960037b..311eae30e089 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -327,7 +327,7 @@ static unsigned long vdso_addr(unsigned long start, unsigned len)
end -= len;
if (end > start) {
- offset = get_random_int() % (((end - start) >> PAGE_SHIFT) + 1);
+ offset = prandom_u32_max(((end - start) >> PAGE_SHIFT) + 1);
addr = start + (offset << PAGE_SHIFT);
} else {
addr = start;
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index 4fce1a4226e3..8259d725054d 100644
--- a/arch/x86/events/intel/lbr.c
+++ b/arch/x86/events/intel/lbr.c
@@ -1596,7 +1596,7 @@ void __init intel_pmu_arch_lbr_init(void)
return;
clear_arch_lbr:
- clear_cpu_cap(&boot_cpu_data, X86_FEATURE_ARCH_LBR);
+ setup_clear_cpu_cap(X86_FEATURE_ARCH_LBR);
}
/**
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index 0bef44d30a27..2fd52b65deac 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -25,8 +25,10 @@ arch_rmrr_sanity_check(struct acpi_dmar_reserved_memory *rmrr)
{
u64 start = rmrr->base_address;
u64 end = rmrr->end_address + 1;
+ int entry_type;
- if (e820__mapped_all(start, end, E820_TYPE_RESERVED))
+ entry_type = e820__get_entry_type(start, end);
+ if (entry_type == E820_TYPE_RESERVED || entry_type == E820_TYPE_NVS)
return 0;
pr_err(FW_BUG "No firmware reserved region can cover this RMRR [%#018Lx-%#018Lx], contact BIOS vendor for fixes\n",
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 48276c0e479d..860b60273df3 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -503,7 +503,7 @@ static void bsp_init_amd(struct cpuinfo_x86 *c)
va_align.flags = ALIGN_VA_32 | ALIGN_VA_64;
/* A random value per boot for bit slice [12:upper_bit) */
- va_align.bits = get_random_int() & va_align.mask;
+ va_align.bits = get_random_u32() & va_align.mask;
}
if (cpu_has(c, X86_FEATURE_MWAITX))
diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index e7410e98fc1f..3a35dec3ec55 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -440,7 +440,13 @@ apply_microcode_early_amd(u32 cpuid_1_eax, void *ucode, size_t size, bool save_p
return ret;
native_rdmsr(MSR_AMD64_PATCH_LEVEL, rev, dummy);
- if (rev >= mc->hdr.patch_id)
+
+ /*
+ * Allow application of the same revision to pick up SMT-specific
+ * changes even if the revision of the other SMT thread is already
+ * up-to-date.
+ */
+ if (rev > mc->hdr.patch_id)
return ret;
if (!__apply_microcode_amd(mc)) {
@@ -528,8 +534,12 @@ void load_ucode_amd_ap(unsigned int cpuid_1_eax)
native_rdmsr(MSR_AMD64_PATCH_LEVEL, rev, dummy);
- /* Check whether we have saved a new patch already: */
- if (*new_rev && rev < mc->hdr.patch_id) {
+ /*
+ * Check whether a new patch has been saved already. Also, allow application of
+ * the same revision in order to pick up SMT-thread-specific configuration even
+ * if the sibling SMT thread already has an up-to-date revision.
+ */
+ if (*new_rev && rev <= mc->hdr.patch_id) {
if (!__apply_microcode_amd(mc)) {
*new_rev = mc->hdr.patch_id;
return;
diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
index de62b0b87ced..3266ea36667c 100644
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -66,9 +66,6 @@ struct rdt_hw_resource rdt_resources_all[] = {
.rid = RDT_RESOURCE_L3,
.name = "L3",
.cache_level = 3,
- .cache = {
- .min_cbm_bits = 1,
- },
.domains = domain_init(RDT_RESOURCE_L3),
.parse_ctrlval = parse_cbm,
.format_str = "%d=%0*x",
@@ -83,9 +80,6 @@ struct rdt_hw_resource rdt_resources_all[] = {
.rid = RDT_RESOURCE_L2,
.name = "L2",
.cache_level = 2,
- .cache = {
- .min_cbm_bits = 1,
- },
.domains = domain_init(RDT_RESOURCE_L2),
.parse_ctrlval = parse_cbm,
.format_str = "%d=%0*x",
@@ -836,6 +830,7 @@ static __init void rdt_init_res_defs_intel(void)
r->cache.arch_has_sparse_bitmaps = false;
r->cache.arch_has_empty_bitmaps = false;
r->cache.arch_has_per_cpu_cfg = false;
+ r->cache.min_cbm_bits = 1;
} else if (r->rid == RDT_RESOURCE_MBA) {
hw_res->msr_base = MSR_IA32_MBA_THRTL_BASE;
hw_res->msr_update = mba_wrmsr_intel;
@@ -856,6 +851,7 @@ static __init void rdt_init_res_defs_amd(void)
r->cache.arch_has_sparse_bitmaps = true;
r->cache.arch_has_empty_bitmaps = true;
r->cache.arch_has_per_cpu_cfg = true;
+ r->cache.min_cbm_bits = 0;
} else if (r->rid == RDT_RESOURCE_MBA) {
hw_res->msr_base = MSR_IA32_MBA_BW_BASE;
hw_res->msr_update = mba_wrmsr_amd;
diff --git a/arch/x86/kernel/cpu/topology.c b/arch/x86/kernel/cpu/topology.c
index 132a2de44d2f..5e868b62a7c4 100644
--- a/arch/x86/kernel/cpu/topology.c
+++ b/arch/x86/kernel/cpu/topology.c
@@ -96,6 +96,7 @@ int detect_extended_topology(struct cpuinfo_x86 *c)
unsigned int ht_mask_width, core_plus_mask_width, die_plus_mask_width;
unsigned int core_select_mask, core_level_siblings;
unsigned int die_select_mask, die_level_siblings;
+ unsigned int pkg_mask_width;
bool die_level_present = false;
int leaf;
@@ -111,10 +112,10 @@ int detect_extended_topology(struct cpuinfo_x86 *c)
core_level_siblings = smp_num_siblings = LEVEL_MAX_SIBLINGS(ebx);
core_plus_mask_width = ht_mask_width = BITS_SHIFT_NEXT_LEVEL(eax);
die_level_siblings = LEVEL_MAX_SIBLINGS(ebx);
- die_plus_mask_width = BITS_SHIFT_NEXT_LEVEL(eax);
+ pkg_mask_width = die_plus_mask_width = BITS_SHIFT_NEXT_LEVEL(eax);
sub_index = 1;
- do {
+ while (true) {
cpuid_count(leaf, sub_index, &eax, &ebx, &ecx, &edx);
/*
@@ -132,10 +133,15 @@ int detect_extended_topology(struct cpuinfo_x86 *c)
die_plus_mask_width = BITS_SHIFT_NEXT_LEVEL(eax);
}
+ if (LEAFB_SUBTYPE(ecx) != INVALID_TYPE)
+ pkg_mask_width = BITS_SHIFT_NEXT_LEVEL(eax);
+ else
+ break;
+
sub_index++;
- } while (LEAFB_SUBTYPE(ecx) != INVALID_TYPE);
+ }
- core_select_mask = (~(-1 << core_plus_mask_width)) >> ht_mask_width;
+ core_select_mask = (~(-1 << pkg_mask_width)) >> ht_mask_width;
die_select_mask = (~(-1 << die_plus_mask_width)) >>
core_plus_mask_width;
@@ -148,7 +154,7 @@ int detect_extended_topology(struct cpuinfo_x86 *c)
}
c->phys_proc_id = apic->phys_pkg_id(c->initial_apicid,
- die_plus_mask_width);
+ pkg_mask_width);
/*
* Reinit the apicid, now that we have extended initial_apicid.
*/
diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c
index 621f4b6cac4a..8946f89761cc 100644
--- a/arch/x86/kernel/fpu/init.c
+++ b/arch/x86/kernel/fpu/init.c
@@ -210,13 +210,6 @@ static void __init fpu__init_system_xstate_size_legacy(void)
fpstate_reset(&current->thread.fpu);
}
-static void __init fpu__init_init_fpstate(void)
-{
- /* Bring init_fpstate size and features up to date */
- init_fpstate.size = fpu_kernel_cfg.max_size;
- init_fpstate.xfeatures = fpu_kernel_cfg.max_features;
-}
-
/*
* Called on the boot CPU once per system bootup, to set up the initial
* FPU state that is later cloned into all processes:
@@ -236,5 +229,4 @@ void __init fpu__init_system(struct cpuinfo_x86 *c)
fpu__init_system_xstate_size_legacy();
fpu__init_system_xstate(fpu_kernel_cfg.max_size);
fpu__init_task_struct_size();
- fpu__init_init_fpstate();
}
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index c8340156bfd2..59e543b95a3c 100644
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -360,7 +360,7 @@ static void __init setup_init_fpu_buf(void)
print_xstate_features();
- xstate_init_xcomp_bv(&init_fpstate.regs.xsave, fpu_kernel_cfg.max_features);
+ xstate_init_xcomp_bv(&init_fpstate.regs.xsave, init_fpstate.xfeatures);
/*
* Init all the features state with header.xfeatures being 0x0
@@ -678,20 +678,6 @@ static unsigned int __init get_xsave_size_user(void)
return ebx;
}
-/*
- * Will the runtime-enumerated 'xstate_size' fit in the init
- * task's statically-allocated buffer?
- */
-static bool __init is_supported_xstate_size(unsigned int test_xstate_size)
-{
- if (test_xstate_size <= sizeof(init_fpstate.regs))
- return true;
-
- pr_warn("x86/fpu: xstate buffer too small (%zu < %d), disabling xsave\n",
- sizeof(init_fpstate.regs), test_xstate_size);
- return false;
-}
-
static int __init init_xstate_size(void)
{
/* Recompute the context size for enabled features: */
@@ -717,10 +703,6 @@ static int __init init_xstate_size(void)
kernel_default_size =
xstate_calculate_size(fpu_kernel_cfg.default_features, compacted);
- /* Ensure we have the space to store all default enabled features. */
- if (!is_supported_xstate_size(kernel_default_size))
- return -EINVAL;
-
if (!paranoid_xstate_size_valid(kernel_size))
return -EINVAL;
@@ -875,6 +857,19 @@ void __init fpu__init_system_xstate(unsigned int legacy_size)
update_regset_xstate_info(fpu_user_cfg.max_size,
fpu_user_cfg.max_features);
+ /*
+ * init_fpstate excludes dynamic states as they are large but init
+ * state is zero.
+ */
+ init_fpstate.size = fpu_kernel_cfg.default_size;
+ init_fpstate.xfeatures = fpu_kernel_cfg.default_features;
+
+ if (init_fpstate.size > sizeof(init_fpstate.regs)) {
+ pr_warn("x86/fpu: init_fpstate buffer too small (%zu < %d), disabling XSAVE\n",
+ sizeof(init_fpstate.regs), init_fpstate.size);
+ goto out_disable;
+ }
+
setup_init_fpu_buf();
/*
@@ -1130,6 +1125,15 @@ void __copy_xstate_to_uabi_buf(struct membuf to, struct fpstate *fpstate,
*/
mask = fpstate->user_xfeatures;
+ /*
+ * Dynamic features are not present in init_fpstate. When they are
+ * in an all zeros init state, remove those from 'mask' to zero
+ * those features in the user buffer instead of retrieving them
+ * from init_fpstate.
+ */
+ if (fpu_state_size_dynamic())
+ mask &= (header.xfeatures | xinit->header.xcomp_bv);
+
for_each_extended_xfeature(i, mask) {
/*
* If there was a feature or alignment gap, zero the space
diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S
index dfeb227de561..2a4be92fd144 100644
--- a/arch/x86/kernel/ftrace_64.S
+++ b/arch/x86/kernel/ftrace_64.S
@@ -4,6 +4,7 @@
*/
#include <linux/linkage.h>
+#include <linux/cfi_types.h>
#include <asm/ptrace.h>
#include <asm/ftrace.h>
#include <asm/export.h>
@@ -129,6 +130,14 @@
.endm
+SYM_TYPED_FUNC_START(ftrace_stub)
+ RET
+SYM_FUNC_END(ftrace_stub)
+
+SYM_TYPED_FUNC_START(ftrace_stub_graph)
+ RET
+SYM_FUNC_END(ftrace_stub_graph)
+
#ifdef CONFIG_DYNAMIC_FTRACE
SYM_FUNC_START(__fentry__)
@@ -172,21 +181,10 @@ SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL)
*/
SYM_INNER_LABEL(ftrace_caller_end, SYM_L_GLOBAL)
ANNOTATE_NOENDBR
-
- jmp ftrace_epilogue
+ RET
SYM_FUNC_END(ftrace_caller);
STACK_FRAME_NON_STANDARD_FP(ftrace_caller)
-SYM_FUNC_START(ftrace_epilogue)
-/*
- * This is weak to keep gas from relaxing the jumps.
- */
-SYM_INNER_LABEL_ALIGN(ftrace_stub, SYM_L_WEAK)
- UNWIND_HINT_FUNC
- ENDBR
- RET
-SYM_FUNC_END(ftrace_epilogue)
-
SYM_FUNC_START(ftrace_regs_caller)
/* Save the current flags before any operations that can change them */
pushfq
@@ -262,14 +260,11 @@ SYM_INNER_LABEL(ftrace_regs_caller_jmp, SYM_L_GLOBAL)
popfq
/*
- * As this jmp to ftrace_epilogue can be a short jump
- * it must not be copied into the trampoline.
- * The trampoline will add the code to jump
- * to the return.
+ * The trampoline will add the return.
*/
SYM_INNER_LABEL(ftrace_regs_caller_end, SYM_L_GLOBAL)
ANNOTATE_NOENDBR
- jmp ftrace_epilogue
+ RET
/* Swap the flags with orig_rax */
1: movq MCOUNT_REG_SIZE(%rsp), %rdi
@@ -280,7 +275,7 @@ SYM_INNER_LABEL(ftrace_regs_caller_end, SYM_L_GLOBAL)
/* Restore flags */
popfq
UNWIND_HINT_FUNC
- jmp ftrace_epilogue
+ RET
SYM_FUNC_END(ftrace_regs_caller)
STACK_FRAME_NON_STANDARD_FP(ftrace_regs_caller)
@@ -291,9 +286,6 @@ STACK_FRAME_NON_STANDARD_FP(ftrace_regs_caller)
SYM_FUNC_START(__fentry__)
cmpq $ftrace_stub, ftrace_trace_function
jnz trace
-
-SYM_INNER_LABEL(ftrace_stub, SYM_L_GLOBAL)
- ENDBR
RET
trace:
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index b1abf663417c..c032edcd3d95 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -53,7 +53,7 @@ static unsigned long int get_module_load_offset(void)
*/
if (module_load_offset == 0)
module_load_offset =
- (get_random_int() % 1024 + 1) * PAGE_SIZE;
+ (prandom_u32_max(1024) + 1) * PAGE_SIZE;
mutex_unlock(&module_kaslr_mutex);
}
return module_load_offset;
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 58a6ea472db9..c21b7347a26d 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -965,7 +965,7 @@ early_param("idle", idle_setup);
unsigned long arch_align_stack(unsigned long sp)
{
if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
- sp -= get_random_int() % 8192;
+ sp -= prandom_u32_max(8192);
return sp & ~0xf;
}
diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
index 0ea57da92940..c059820dfaea 100644
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -713,7 +713,7 @@ void __unwind_start(struct unwind_state *state, struct task_struct *task,
/* Otherwise, skip ahead to the user-specified starting frame: */
while (!unwind_done(state) &&
(!on_stack(&state->stack_info, first_frame, sizeof(long)) ||
- state->sp < (unsigned long)first_frame))
+ state->sp <= (unsigned long)first_frame))
unwind_next_frame(state);
return;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 4bd5f8a751de..9cf1ba865562 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6442,26 +6442,22 @@ static int kvm_add_msr_filter(struct kvm_x86_msr_filter *msr_filter,
return 0;
}
-static int kvm_vm_ioctl_set_msr_filter(struct kvm *kvm, void __user *argp)
+static int kvm_vm_ioctl_set_msr_filter(struct kvm *kvm,
+ struct kvm_msr_filter *filter)
{
- struct kvm_msr_filter __user *user_msr_filter = argp;
struct kvm_x86_msr_filter *new_filter, *old_filter;
- struct kvm_msr_filter filter;
bool default_allow;
bool empty = true;
int r = 0;
u32 i;
- if (copy_from_user(&filter, user_msr_filter, sizeof(filter)))
- return -EFAULT;
-
- if (filter.flags & ~KVM_MSR_FILTER_DEFAULT_DENY)
+ if (filter->flags & ~KVM_MSR_FILTER_DEFAULT_DENY)
return -EINVAL;
- for (i = 0; i < ARRAY_SIZE(filter.ranges); i++)
- empty &= !filter.ranges[i].nmsrs;
+ for (i = 0; i < ARRAY_SIZE(filter->ranges); i++)
+ empty &= !filter->ranges[i].nmsrs;
- default_allow = !(filter.flags & KVM_MSR_FILTER_DEFAULT_DENY);
+ default_allow = !(filter->flags & KVM_MSR_FILTER_DEFAULT_DENY);
if (empty && !default_allow)
return -EINVAL;
@@ -6469,8 +6465,8 @@ static int kvm_vm_ioctl_set_msr_filter(struct kvm *kvm, void __user *argp)
if (!new_filter)
return -ENOMEM;
- for (i = 0; i < ARRAY_SIZE(filter.ranges); i++) {
- r = kvm_add_msr_filter(new_filter, &filter.ranges[i]);
+ for (i = 0; i < ARRAY_SIZE(filter->ranges); i++) {
+ r = kvm_add_msr_filter(new_filter, &filter->ranges[i]);
if (r) {
kvm_free_msr_filter(new_filter);
return r;
@@ -6493,6 +6489,62 @@ static int kvm_vm_ioctl_set_msr_filter(struct kvm *kvm, void __user *argp)
return 0;
}
+#ifdef CONFIG_KVM_COMPAT
+/* for KVM_X86_SET_MSR_FILTER */
+struct kvm_msr_filter_range_compat {
+ __u32 flags;
+ __u32 nmsrs;
+ __u32 base;
+ __u32 bitmap;
+};
+
+struct kvm_msr_filter_compat {
+ __u32 flags;
+ struct kvm_msr_filter_range_compat ranges[KVM_MSR_FILTER_MAX_RANGES];
+};
+
+#define KVM_X86_SET_MSR_FILTER_COMPAT _IOW(KVMIO, 0xc6, struct kvm_msr_filter_compat)
+
+long kvm_arch_vm_compat_ioctl(struct file *filp, unsigned int ioctl,
+ unsigned long arg)
+{
+ void __user *argp = (void __user *)arg;
+ struct kvm *kvm = filp->private_data;
+ long r = -ENOTTY;
+
+ switch (ioctl) {
+ case KVM_X86_SET_MSR_FILTER_COMPAT: {
+ struct kvm_msr_filter __user *user_msr_filter = argp;
+ struct kvm_msr_filter_compat filter_compat;
+ struct kvm_msr_filter filter;
+ int i;
+
+ if (copy_from_user(&filter_compat, user_msr_filter,
+ sizeof(filter_compat)))
+ return -EFAULT;
+
+ filter.flags = filter_compat.flags;
+ for (i = 0; i < ARRAY_SIZE(filter.ranges); i++) {
+ struct kvm_msr_filter_range_compat *cr;
+
+ cr = &filter_compat.ranges[i];
+ filter.ranges[i] = (struct kvm_msr_filter_range) {
+ .flags = cr->flags,
+ .nmsrs = cr->nmsrs,
+ .base = cr->base,
+ .bitmap = (__u8 *)(ulong)cr->bitmap,
+ };
+ }
+
+ r = kvm_vm_ioctl_set_msr_filter(kvm, &filter);
+ break;
+ }
+ }
+
+ return r;
+}
+#endif
+
#ifdef CONFIG_HAVE_KVM_PM_NOTIFIER
static int kvm_arch_suspend_notifier(struct kvm *kvm)
{
@@ -6915,9 +6967,16 @@ set_pit2_out:
case KVM_SET_PMU_EVENT_FILTER:
r = kvm_vm_ioctl_set_pmu_event_filter(kvm, argp);
break;
- case KVM_X86_SET_MSR_FILTER:
- r = kvm_vm_ioctl_set_msr_filter(kvm, argp);
+ case KVM_X86_SET_MSR_FILTER: {
+ struct kvm_msr_filter __user *user_msr_filter = argp;
+ struct kvm_msr_filter filter;
+
+ if (copy_from_user(&filter, user_msr_filter, sizeof(filter)))
+ return -EFAULT;
+
+ r = kvm_vm_ioctl_set_msr_filter(kvm, &filter);
break;
+ }
default:
r = -ENOTTY;
}
diff --git a/arch/x86/mm/pat/cpa-test.c b/arch/x86/mm/pat/cpa-test.c
index 0612a73638a8..423b21e80929 100644
--- a/arch/x86/mm/pat/cpa-test.c
+++ b/arch/x86/mm/pat/cpa-test.c
@@ -136,10 +136,10 @@ static int pageattr_test(void)
failed += print_split(&sa);
for (i = 0; i < NTEST; i++) {
- unsigned long pfn = prandom_u32() % max_pfn_mapped;
+ unsigned long pfn = prandom_u32_max(max_pfn_mapped);
addr[i] = (unsigned long)__va(pfn << PAGE_SHIFT);
- len[i] = prandom_u32() % NPAGES;
+ len[i] = prandom_u32_max(NPAGES);
len[i] = min_t(unsigned long, len[i], max_pfn_mapped - pfn - 1);
if (len[i] == 0)
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 0abd082786e7..51afd6d0c05f 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -11,6 +11,7 @@
#include <linux/bpf.h>
#include <linux/memory.h>
#include <linux/sort.h>
+#include <linux/init.h>
#include <asm/extable.h>
#include <asm/set_memory.h>
#include <asm/nospec-branch.h>
@@ -388,6 +389,18 @@ out:
return ret;
}
+int __init bpf_arch_init_dispatcher_early(void *ip)
+{
+ const u8 *nop_insn = x86_nops[5];
+
+ if (is_endbr(*(u32 *)ip))
+ ip += ENDBR_INSN_SIZE;
+
+ if (memcmp(ip, nop_insn, X86_PATCH_SIZE))
+ text_poke_early(ip, nop_insn, X86_PATCH_SIZE);
+ return 0;
+}
+
int bpf_arch_text_poke(void *ip, enum bpf_text_poke_type t,
void *old_addr, void *new_addr)
{
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-05 12:10:28 +0100