linux/arch
Borislav Petkov (AMD) 34b87ac4bb KVM: SVM: Set synthesized TSA CPUID flags
Commit f3f9deccfc LTS

VERW_CLEAR is supposed to be set only by the hypervisor to denote TSA
mitigation support to a guest. SQ_NO and L1_NO are both synthesizable,
and are going to be set by hw CPUID on future machines.

So keep the kvm_cpu_cap_init_kvm_defined() invocation *and* set them
when synthesized.

This fix is stable-only.

Co-developed-by: Jinpu Wang <jinpu.wang@ionos.com>
Signed-off-by: Jinpu Wang <jinpu.wang@ionos.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <stable@vger.kernel.org> # 5.15.y
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-10-02 13:39:00 +02:00
..
alpha sched: Add wrapper for get_wchan() to keep task blocked 2025-08-28 16:24:03 +02:00
arc sched: Add wrapper for get_wchan() to keep task blocked 2025-08-28 16:24:03 +02:00
arm ARM: 9448/1: Use an absolute path to unified.h in KBUILD_AFLAGS 2025-08-28 16:24:30 +02:00
arm64 arm64: dts: marvell: uDPU: define pinctrl state for alarm LEDs 2025-09-09 18:50:23 +02:00
csky sched: Add wrapper for get_wchan() to keep task blocked 2025-08-28 16:24:03 +02:00
h8300 sched: Add wrapper for get_wchan() to keep task blocked 2025-08-28 16:24:03 +02:00
hexagon sched: Add wrapper for get_wchan() to keep task blocked 2025-08-28 16:24:03 +02:00
ia64 sched: Add wrapper for get_wchan() to keep task blocked 2025-08-28 16:24:03 +02:00
m68k m68k: Fix lost column on framebuffer debug console 2025-08-28 16:24:27 +02:00
microblaze sched: Add wrapper for get_wchan() to keep task blocked 2025-08-28 16:24:03 +02:00
mips lib/crypto: mips/chacha: Fix clang build and remove unneeded byteswap 2025-08-28 16:24:27 +02:00
nds32 sched: Add wrapper for get_wchan() to keep task blocked 2025-08-28 16:24:03 +02:00
nios2 sched: Add wrapper for get_wchan() to keep task blocked 2025-08-28 16:24:03 +02:00
openrisc sched: Add wrapper for get_wchan() to keep task blocked 2025-08-28 16:24:03 +02:00
parisc parisc: Makefile: fix a typo in palo.conf 2025-08-28 16:24:27 +02:00
powerpc powerpc/kvm: Fix ifdef to remove build warning 2025-09-04 14:28:45 +02:00
riscv sched: Add wrapper for get_wchan() to keep task blocked 2025-08-28 16:24:03 +02:00
s390 s390/hypfs: Enable limited access during lockdown 2025-08-28 16:24:39 +02:00
sh sh: Do not use hyphen in exported variable name 2025-08-28 16:24:11 +02:00
sparc sched: Add wrapper for get_wchan() to keep task blocked 2025-08-28 16:24:03 +02:00
um um: rtc: Avoid shadowing err in uml_rtc_start() 2025-08-28 16:24:08 +02:00
x86 KVM: SVM: Set synthesized TSA CPUID flags 2025-10-02 13:39:00 +02:00
xtensa sched: Add wrapper for get_wchan() to keep task blocked 2025-08-28 16:24:03 +02:00
.gitignore .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
Kconfig cpu: Re-enable CPU mitigations by default for !X86 architectures 2024-05-02 16:24:48 +02:00