Hou Wenlong ba2c6e353b KVM: x86/emulator: Defer not-present segment check in __load_segment_descriptor() ...

[ Upstream commit ca85f00225 ]

Per Intel's SDM on the "Instruction Set Reference", when
loading segment descriptor, not-present segment check should
be after all type and privilege checks. But the emulator checks
it first, then #NP is triggered instead of #GP if privilege fails
and segment is not present. Put not-present segment check after
type and privilege checks in __load_segment_descriptor().

Fixes: 38ba30ba51 (KVM: x86 emulator: Emulate task switch in emulator.c)
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Hou Wenlong <houwenlong.hwl@antgroup.com>
Message-Id: <52573c01d369f506cadcf7233812427cf7db81a7.1644292363.git.houwenlong.hwl@antgroup.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-04-08 14:40:19 +02:00

..

alpha

alpha: Declare virt_to_phys and virt_to_bus parameter as pointer to volatile

2021-09-30 10:11:07 +02:00

arc

ARC: export clear_user_page() for modules

2021-09-22 12:28:04 +02:00

arm

ARM: configs: multi_v5_defconfig: re-enable CONFIG_V4L_PLATFORM_DRIVERS

2022-04-08 14:40:11 +02:00

arm64

bpf, arm64: Feed byte-offset into bpf line info

2022-04-08 14:40:18 +02:00

c6x

Merge tag 'arch-cleanup-2020-10-22' of git://git.kernel.dk/linux-block

2020-10-23 10:06:38 -07:00

csky

perf: Protect perf_guest_cbs with RCU

2022-01-20 09:17:50 +01:00

h8300

h8300: fix PREEMPTION build, TI_PRE_COUNT undefined

2021-02-17 11:02:28 +01:00

hexagon

hexagon: clean up timer-regs.h

2021-11-26 10:39:19 +01:00

ia64

ia64: ensure proper NUMA distance and possible map initialization

2022-03-08 19:09:34 +01:00

m68k

m68k: coldfire/device.c: only build for MCF_EDMA when h/w macros are defined

2022-04-08 14:40:09 +02:00

microblaze

uaccess: fix nios2 and microblaze get_user_8()

2022-04-08 14:40:08 +02:00

mips

DEC: Limit PMAX memory probing to R3k systems

2022-04-08 14:39:57 +02:00

nds32

nds32: fix access_ok() checks in get/put_user

2022-03-28 09:57:10 +02:00

nios2

uaccess: fix nios2 and microblaze get_user_8()

2022-04-08 14:40:08 +02:00

openrisc

openrisc: Add clone3 ABI wrapper

2022-01-27 10:54:06 +01:00

parisc

parisc/unaligned: Fix ldw() and stw() unalignment handlers

2022-03-02 11:42:46 +01:00

powerpc

powerpc/Makefile: Don't pass -mcpu=powerpc64 when building 32-bit

2022-04-08 14:40:19 +02:00

riscv

riscv: Increase stack size under KASAN

2022-04-08 14:39:53 +02:00

s390

s390/extable: fix exception table sorting

2022-03-08 19:09:36 +01:00

sh

sh: define __BIG_ENDIAN for math-emu

2021-11-26 10:39:12 +01:00

sparc

sparc64: fix pci_iounmap() when CONFIG_PCI is not set

2021-10-09 14:40:56 +02:00

um

um: registers: Rename function names to avoid conflicts and build problems

2022-01-27 10:54:18 +01:00

x86

KVM: x86/emulator: Defer not-present segment check in __load_segment_descriptor()

2022-04-08 14:40:19 +02:00

xtensa

xtensa: fix xtensa_wsr always writing 0

2022-04-08 14:39:58 +02:00

.gitignore

…

Kconfig

arch/cc: Introduce a function to check for confidential computing features

2021-11-18 14:04:32 +01:00