Zhenzhong Duan 24db040f7e x86/speculation/mds: Apply more accurate check on hypervisor platform ...

commit 517c3ba009 upstream.

X86_HYPER_NATIVE isn't accurate for checking if running on native platform,
e.g. CONFIG_HYPERVISOR_GUEST isn't set or "nopv" is enabled.

Checking the CPU feature bit X86_FEATURE_HYPERVISOR to determine if it's
running on native platform is more accurate.

This still doesn't cover the platforms on which X86_FEATURE_HYPERVISOR is
unsupported, e.g. VMware, but there is nothing which can be done about this
scenario.

Fixes: 8a4b06d391 ("x86/speculation/mds: Add sysfs reporting for MDS")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/1564022349-17338-1-git-send-email-zhenzhong.duan@oracle.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2019-08-04 09:33:43 +02:00

..

acpi

x86/suspend: fix false positive KASAN warning on suspend/resume

2019-05-08 07:19:06 +02:00

apic

x86/smp: fix non-SMP broken build due to redefinition of apic_id_is_primary_thread

2018-08-15 18:14:55 +02:00

cpu

x86/speculation/mds: Apply more accurate check on hypervisor platform

2019-08-04 09:33:43 +02:00

fpu

x86/fpu: Disable bottom halves while loading FPU registers

2018-12-29 13:40:15 +01:00

kprobes

x86/kprobes: Verify stack frame on kretprobe

2019-04-27 09:34:44 +02:00

.gitignore

…

alternative.c

x86/paravirt: Remove 'noreplace-paravirt' cmdline option

2018-02-13 12:36:01 +01:00

amd_gart_64.c

dma-mapping: use unsigned long for dma_attrs

2016-08-04 08:50:07 -04:00

amd_nb.c

x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping

2018-02-22 15:43:55 +01:00

apb_timer.c

x86/apb_timer: Convert to hotplug state machine

2016-07-15 10:40:22 +02:00

aperture_64.c

param: convert some "on"/"off" users to strtobool

2016-03-17 15:09:34 -07:00

apm_32.c

x86/apm: Don't access __preempt_count with zeroed fs

2018-07-25 11:23:58 +02:00

asm-offsets_32.c

x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping

2018-02-22 15:43:55 +01:00

asm-offsets_64.c

sched/x86: Rewrite the switch_to() code

2016-08-24 12:31:41 +02:00

asm-offsets.c

x86: Move thread_info into task_struct

2016-09-15 08:25:13 +02:00

audit_64.c

x86: hook up execveat system call

2014-12-13 12:42:51 -08:00

bootflag.c

x86: don't use module_init for non-modular core bootflag code

2015-06-16 14:12:34 -04:00

check.c

x86/corruption-check: Fix panic in memory_corruption_check() when boot option without value is provided

2018-11-13 11:16:47 -08:00

cpuid.c

new helpers: no_seek_end_llseek{,_size}()

2015-12-23 10:41:31 -05:00

crash_dump_32.c

…

crash_dump_64.c

…

crash.c

x86/panic: replace smp_send_stop() with kdump friendly version in panic path

2016-10-11 15:06:32 -07:00

devicetree.c

x86/devicetree: Fix device IRQ settings in DT

2018-05-30 07:50:48 +02:00

doublefault.c

x86: Delete non-required instances of include <linux/init.h>

2014-01-06 21:25:18 -08:00

dumpstack_32.c

x86/dumpstack: Remove dump_trace() and related callbacks

2016-09-20 08:29:34 +02:00

dumpstack_64.c

x86/dumpstack: Remove dump_trace() and related callbacks

2016-09-20 08:29:34 +02:00

dumpstack.c

x86/entry/64: Wipe KASAN stack shadow before rewind_stack_do_exit()

2018-09-05 09:20:10 +02:00

e820.c

x86/e820: Don't merge consecutive E820_PRAM ranges

2016-10-16 11:16:48 +02:00

early_printk.c

x86: Fix misspellings in comments

2016-02-24 08:44:58 +01:00

early-quirks.c

Merge tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux

2016-10-11 18:12:22 -07:00

ebda.c

x86/boot: Simplify EBDA-vs-BIOS reservation logic

2016-07-22 11:46:01 +02:00

espfix_64.c

kaiser: add "nokaiser" boot option, using ALTERNATIVE

2018-01-05 15:46:34 +01:00

ftrace.c

x86: Don't include linux/irq.h from asm/hardirq.h

2018-08-15 18:14:52 +02:00

head32.c

x86/boot: Run reserve_bios_regions() after we initialize the memory map

2016-08-11 11:14:59 +02:00

head64.c

x86/kasan: Fix boot with KASAN=y and PROFILE_ANNOTATED_BRANCHES=y

2017-03-22 12:43:40 +01:00

head_32.S

x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping

2018-02-22 15:43:55 +01:00

head_64.S

Revert "x86/mm: Expand static page table for fixmap space"

2018-11-10 07:42:59 -08:00

hpet.c

x86/hpet: Prevent potential NULL pointer dereference

2019-04-20 09:07:50 +02:00

hw_breakpoint.c

x86/hw_breakpoints: Make default case in hw_breakpoint_arch_parse() return an error

2019-04-20 09:07:50 +02:00

i8237.c

…

i8253.c

x86/kernel: Audit and remove any unnecessary uses of module.h

2016-07-14 15:06:41 +02:00

i8259.c

x86: Don't include linux/irq.h from asm/hardirq.h

2018-08-15 18:14:52 +02:00

io_delay.c

x86/kernel: Audit and remove any unnecessary uses of module.h

2016-07-14 15:06:41 +02:00

ioport.c

x86/iopl: Fix iopl capability check on Xen PV

2016-03-17 09:49:27 +01:00

irq_32.c

x86: Don't include linux/irq.h from asm/hardirq.h

2018-08-15 18:14:52 +02:00

irq_64.c

x86/irq/64: Limit IST stack overflow check to #DB stack

2019-05-31 06:48:22 -07:00

irq_work.c

x86/irq, trace: Add __irq_entry annotation to x86's platform IRQ handlers

2017-11-21 09:23:24 +01:00

irq.c

x86: Don't include linux/irq.h from asm/hardirq.h

2018-08-15 18:14:52 +02:00

irqflags.S

x86/paravirt: Make native_save_fl() extern inline

2018-07-22 14:27:35 +02:00

irqinit.c

x86: Don't include linux/irq.h from asm/hardirq.h

2018-08-15 18:14:52 +02:00

jump_label.c

x86/asm: Stop depending on ptrace.h in alternative.h

2016-04-29 11:56:40 +02:00

kdebugfs.c

x86/kernel: Audit and remove any unnecessary uses of module.h

2016-07-14 15:06:41 +02:00

kexec-bzimage64.c

x86/kexec: Don't setup EFI info if EFI runtime is not enabled

2019-03-13 14:04:57 -07:00

kgdb.c

sched/x86: Add 'struct inactive_task_frame' to better document the sleeping task stack frame

2016-08-24 12:27:41 +02:00

ksysfs.c

x86: Apply more __ro_after_init and const

2016-08-10 14:55:05 +02:00

kvm.c

kvm/x86: Handle async PF in RCU read-side critical sections

2017-10-05 09:44:03 +02:00

kvmclock.c

Merge branch 'linus' into x86/asm, to pick up recent fixes

2016-09-15 08:24:53 +02:00

ldt.c

kaiser: fix unlikely error in alloc_ldt_struct()

2018-01-05 15:46:34 +01:00

livepatch.c

livepatch/x86: apply alternatives and paravirt patches after relocations

2016-08-18 23:41:55 +02:00

machine_kexec_32.c

x86/kexec: Avoid double free_page() upon do_kexec_load() failure

2018-05-25 16:12:59 +02:00

machine_kexec_64.c

x86/kexec: Avoid double free_page() upon do_kexec_load() failure

2018-05-25 16:12:59 +02:00

Makefile

x86/paravirt: Make native_save_fl() extern inline

2018-07-22 14:27:35 +02:00

mcount_64.S

x86/retpoline/ftrace: Convert ftrace assembler indirect jumps

2018-01-17 09:38:59 +01:00

mmconf-fam10h_64.c

x86: delete __cpuinit usage from all x86 files

2013-07-14 19:36:56 -04:00

module.c

x86: Treat R_X86_64_PLT32 as R_X86_64_PC32

2018-03-18 11:18:55 +01:00

mpparse.c

x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping

2018-02-22 15:43:55 +01:00

msr.c

x86/cpufeature: Carve out X86_FEATURE_*

2016-01-30 11:22:17 +01:00

nmi_selftest.c

…

nmi.c

x86/speculation/mds: Clear CPU buffers on exit to user

2019-05-14 19:19:40 +02:00

paravirt_patch_32.c

x86, locking/spinlocks: Remove ticket (spin)lock implementation

2016-09-30 10:56:00 +02:00

paravirt_patch_64.c

x86/paravirt: Dont patch flush_tlb_single

2018-01-05 15:46:35 +01:00

paravirt-spinlocks.c

x86, locking/spinlocks: Remove ticket (spin)lock implementation

2016-09-30 10:56:00 +02:00

paravirt.c

x86/paravirt: Fix some warning messages

2018-11-10 07:42:55 -08:00

pci-calgary_64.c

x86/pci-calgary: Fix iommu_free() comparison of unsigned expression >= 0

2017-05-14 14:00:17 +02:00

pci-dma.c

dma-mapping: use unsigned long for dma_attrs

2016-08-04 08:50:07 -04:00

pci-iommu_table.c

x86: Fix non-static inlines

2016-04-16 13:21:40 +02:00

pci-nommu.c

dma-mapping: use unsigned long for dma_attrs

2016-08-04 08:50:07 -04:00

pci-swiotlb.c

swiotlb: Convert swiotlb_force from int to enum

2017-01-26 08:24:44 +01:00

pcspeaker.c

…

perf_regs.c

perf/x86/64: Report regs_user->ax too in get_regs_user()

2015-04-11 13:08:53 +02:00

platform-quirks.c

x86/boot: Reorganize and clean up the BIOS area reservation code

2016-07-21 10:11:57 +02:00

pmem.c

x86/kernel: Audit and remove any unnecessary uses of module.h

2016-07-14 15:06:41 +02:00

probe_roms.c

…

process_32.c

sched/x86: Save [ER]FLAGS on context switch

2019-05-21 18:48:56 +02:00

process_64.c

sched/x86: Save [ER]FLAGS on context switch

2019-05-21 18:48:56 +02:00

process.c

x86/speculation: Add prctl() control for indirect branch speculation

2019-05-14 19:19:39 +02:00

process.h

x86/speculation: Avoid __switch_to_xtra() calls

2019-05-14 19:19:38 +02:00

ptrace.c

x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg()

2019-07-21 09:05:58 +02:00

pvclock.c

KVM: x86: introduce get_kvmclock_ns

2016-09-20 09:26:15 +02:00

quirks.c

x86/mce: Check for alternate indication of machine check recovery on Skylake

2018-07-03 11:23:05 +02:00

reboot_fixups_32.c

…

reboot.c

x86/reboot, efi: Use EFI reboot for Acer TravelMate X514-51T

2019-05-16 19:43:42 +02:00

relocate_kernel_32.S

x86/asm: Optimize unnecessarily wide TEST instructions

2015-03-07 11:12:43 +01:00

relocate_kernel_64.S

x86/asm: Replace "MOVQ $imm, %reg" with MOVL

2015-04-01 13:17:39 +02:00

resource.c

x86/e820: Prepare e280 code for switch to dynamic storage

2016-09-21 15:02:12 +02:00

rtc.c

char/genrtc: x86: remove remnants of asm/rtc.h

2016-06-04 00:20:07 +02:00

setup_percpu.c

x86/boot/32: Fix UP boot on Quark and possibly other platforms

2018-03-22 09:17:58 +01:00

setup.c

x86/speculation/l1tf: Make sure the first page is always reserved

2018-08-15 18:14:44 +02:00

signal_compat.c

x86/signals: Fix lower/upper bound reporting in compat siginfo

2017-04-21 09:31:20 +02:00

signal.c

x86/uaccess, signal: Fix AC=1 bloat

2019-05-31 06:48:29 -07:00

smp.c

x86/irq: Let interrupt handlers set kvm_cpu_l1tf_flush_l1d

2018-08-15 18:14:52 +02:00

smpboot.c

x86/CPU/AMD: Have smp_num_siblings and cpu_llc_id always be present

2018-08-15 18:14:55 +02:00

stacktrace.c

x86/stacktrace: Convert save_stack_trace_*() to use the new unwinder

2016-09-20 08:29:33 +02:00

step.c

mm: replace access_process_vm() write parameter with gup_flags

2016-10-19 08:31:25 -07:00

sys_x86_64.c

x86/mm: Make mmap(MAP_32BIT) work correctly

2018-03-22 09:17:38 +01:00

sysfb_efi.c

x86/sysfb_efi: Add quirks for some devices with swapped width and height

2019-08-04 09:33:42 +02:00

sysfb_simplefb.c

x86/sysfb: Fix lfb_size calculation

2016-11-16 09:38:23 +01:00

sysfb.c

x86/sysfb: Use PTR_ERR_OR_ZERO

2014-10-17 13:40:52 -07:00

tboot.c

x86/pti: Make unpoison of pgd for trusted boot work for real

2018-02-13 12:35:55 +01:00

tce_64.c

x86/cpufeature: Remove cpu_has_clflush

2016-03-31 13:35:09 +02:00

test_nx.c

x86/mm: Always enable CONFIG_DEBUG_RODATA and remove the Kconfig option

2016-02-22 08:51:38 +01:00

test_rodata.c

x86: Don't use module.h just for AUTHOR / LICENSE tags

2016-07-14 13:04:20 +02:00

time.c

x86/time: Correct the attribute on jiffies' definition

2018-11-10 07:43:01 -08:00

tls.c

x86/tls: Fix possible spectre-v1 in do_get_thread_area()

2019-07-21 09:05:58 +02:00

tls.h

…

topology.c

x86: Drop bogus __ref / __refdata annotations

2015-07-20 18:57:20 +02:00

trace_clock.c

x86/asm/tsc: Add rdtsc_ordered() and use it in trivial call sites

2015-07-06 15:23:29 +02:00

tracepoint.c

kaiser: merged update

2018-01-05 15:46:32 +01:00

traps.c

x86/speculation/mds: Revert CPU buffer clear on double fault exit

2019-05-21 18:48:55 +02:00

tsc_msr.c

x86/tsc: Add missing header to tsc_msr.c

2018-10-03 17:01:45 -07:00

tsc_sync.c

x86/asm/tsc/sync: Use rdtsc_ordered() in check_tsc_warp() and drop extra barriers

2015-07-06 15:23:29 +02:00

tsc.c

x86/cpu: Sanitize FAM6_ATOM naming

2019-05-14 19:19:34 +02:00

unwind_frame.c

x86/unwind: Disable KASAN checks for non-current tasks

2019-05-08 07:19:06 +02:00

unwind_guess.c

x86/unwind: Fix guess-unwinder regression

2016-11-28 07:47:54 +01:00

uprobes.c

uprobes/x86: Remove incorrect WARN_ON() in uprobe_init_insn()

2018-07-17 11:37:54 +02:00

verify_cpu.S

x86/cpufeature: Carve out X86_FEATURE_*

2016-01-30 11:22:17 +01:00

vm86_32.c

x86/vm86/32: Fix POPF emulation

2018-03-22 09:17:59 +01:00

vmlinux.lds.S

Revert "x86/build: Move _etext to actual end of .text"

2019-06-11 12:22:45 +02:00

vsmp_64.c

x86: replace __init_or_module with __init in non-modular vsmp_64.c

2015-06-16 14:12:41 -04:00

x86_init.c

x86: Apply more __ro_after_init and const

2016-08-10 14:55:05 +02:00