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

..

alpha

alpha: Fix Eiger NR_IRQS to 128

2019-02-20 10:18:32 +01:00

arc

ARC: hide unused function unw_hdr_alloc

2019-07-21 09:06:07 +02:00

arm

ARM: dts: imx6ul: fix PWM[1-4] interrupts

2019-07-21 09:06:07 +02:00

arm64

arm64: tegra: Fix AGIC register range

2019-08-04 09:33:28 +02:00

avr32

Merge branch 'akpm' (patches from Andrew)

2016-10-07 21:38:00 -07:00

blackfin

pinctrl: adi2: Fix Kconfig build problem

2017-12-20 10:07:32 +01:00

c6x

c6x/ptrace: Remove useless PTRACE_SETREGSET implementation

2017-03-31 10:31:46 +02:00

cris

cris: Only build flash rescue image if CONFIG_ETRAX_AXISFLASHMAP is selected

2017-01-12 11:39:24 +01:00

frv

futex: Remove duplicated code and fix undefined behaviour

2018-05-19 10:27:00 +02:00

h8300

h8300: use cc-cross-prefix instead of hardcoding h8300-unknown-linux-

2019-04-05 22:29:05 +02:00

hexagon

hexagon: modify ffs() and fls() to return int

2018-10-10 08:53:21 +02:00

ia64

bug.h: work around GCC PR82365 in BUG()

2019-07-10 09:55:44 +02:00

m32r

mm: replace access_process_vm() write parameter with gup_flags

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

m68k

bug.h: work around GCC PR82365 in BUG()

2019-07-10 09:55:44 +02:00

metag

metag/uaccess: Check access_ok in strncpy_from_user

2017-05-25 15:44:46 +02:00

microblaze

microblaze: Fix simpleImage format generation

2018-08-03 07:55:25 +02:00

mips

MIPS: fix build on non-linux hosts

2019-08-04 09:33:14 +02:00

mn10300

mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy

2018-02-17 13:21:20 +01:00

nios2

nios2: reserve boot memory for device tree

2017-04-12 12:41:14 +02:00

openrisc

kthread: fix boot hang (regression) on MIPS/OpenRISC

2018-09-19 22:47:11 +02:00

parisc

parisc: Fix kernel panic due invalid values in IAOQ0 or IAOQ1

2019-08-04 09:33:31 +02:00

powerpc

powerpc/eeh: Handle hugepages in ioremap space

2019-08-04 09:33:41 +02:00

s390

s390: fix stfle zero padding

2019-07-21 09:06:08 +02:00

score

Merge branch 'gup_flag-cleanups'

2016-10-19 08:39:47 -07:00

sh

sh: prevent warnings when using iounmap

2019-08-04 09:33:41 +02:00

sparc

bug.h: work around GCC PR82365 in BUG()

2019-07-10 09:55:44 +02:00

tile

futex: Remove duplicated code and fix undefined behaviour

2018-05-19 10:27:00 +02:00

um

um: Silence lockdep complaint about mmap_sem

2019-08-04 09:33:39 +02:00

unicore32

unicore32: use simpler API for random address requests

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

x86

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

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

xtensa

xtensa: fix return_address

2019-04-17 08:36:47 +02:00

.gitignore

…

Kconfig

cpu/hotplug: Provide knobs to control SMT

2018-08-15 18:14:46 +02:00