Jim Mattson fd42634ae0 KVM: x86: Mask off reserved bits in CPUID.80000008H ...

commit 7030d8530e upstream.

KVM_GET_SUPPORTED_CPUID should only enumerate features that KVM
actually supports. The following ranges of CPUID.80000008H are reserved
and should be masked off:
    ECX[31:18]
    ECX[11:8]

In addition, the PerfTscSize field at ECX[17:16] should also be zero
because KVM does not set the PERFTSC bit at CPUID.80000001H.ECX[27].

Fixes: 24c82e576b ("KVM: Sanitize cpuid")
Signed-off-by: Jim Mattson <jmattson@google.com>
Message-Id: <20220929225203.2234702-3-jmattson@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2022-11-10 15:46:07 +01:00

..

alpha

tty: the rest, stop using tty_schedule_flip()

2022-07-29 17:05:47 +02:00

arc

arc: iounmap() arg is volatile

2022-11-03 23:49:17 +09:00

arm

ARM: dts: imx6sl: add missing properties for sram

2022-10-26 13:15:47 +02:00

arm64

arm64: errata: Remove AES hwcap for COMPAT tasks

2022-11-03 23:49:15 +09:00

avr32

…

blackfin

…

c6x

…

cris

…

frv

futex: Remove duplicated code and fix undefined behaviour

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

h8300

h8300: fix PREEMPTION build, TI_PRE_COUNT undefined

2021-02-23 13:59:16 +01:00

hexagon

hexagon: export raw I/O routines for modules

2021-11-26 11:48:42 +01:00

ia64

ia64, processor: fix -Wincompatible-pointer-types in ia64_get_irr()

2022-08-25 11:09:24 +02:00

m32r

…

m68k

m68k: use fallback for random_get_entropy() instead of zero

2022-06-25 11:45:13 +02:00

metag

…

microblaze

microblaze: Prevent the overflow of the start

2020-02-28 15:42:42 +01:00

mips

MIPS: BCM47XX: Cast memcmp() of function to (void *)

2022-10-26 13:15:45 +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: add force_successful_syscall_return()

2022-08-25 11:09:30 +02:00

openrisc

openrisc: start CPU timer early in boot

2022-06-14 16:52:29 +02:00

parisc

parisc: Add runtime check to prevent PA2.0 kernels on PA1.x machines

2022-09-15 12:39:45 +02:00

powerpc

powerpc: Fix SPE Power ISA properties for e500v1 platforms

2022-10-26 13:15:44 +02:00

s390

s390/futex: add missing EX_TABLE entry to __futex_atomic_op()

2022-11-03 23:49:16 +09:00

score

…

sh

sh: machvec: Use char[] for section boundaries

2022-10-26 13:15:38 +02:00

sparc

sparc: use fallback for random_get_entropy() instead of zero

2022-06-25 11:45:13 +02:00

tile

locking/x86: Remove the unused atomic_inc_short() methd

2020-01-12 11:24:19 +01:00

um

UM: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK

2022-10-26 13:15:37 +02:00

unicore32

…

x86

KVM: x86: Mask off reserved bits in CPUID.80000008H

2022-11-10 15:46:07 +01:00

xtensa

xtensa: Fix refcount leak bug in time.c

2022-07-02 16:17:15 +02:00

.gitignore

…

Kconfig

cpu/hotplug: Provide knobs to control SMT

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