diff options
| author | Kim Phillips <kim.phillips@amd.com> | 2023-01-24 19:33:17 +0300 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2023-01-25 18:37:20 +0300 |
| commit | faabfcb194a8d0686396e3fff6a5b42911f65191 (patch) | |
| tree | f56896cfc7e06bdfdce79babd8e491bb79b1bb1c /arch/x86/include/asm/cpufeatures.h | |
| parent | 5b909d4ae59aedc711b7a432da021be0e82c95a0 (diff) | |
| download | linux-faabfcb194a8d0686396e3fff6a5b42911f65191.tar.xz | |
x86/cpu, kvm: Add the SMM_CTL MSR not present feature
The SMM_CTL MSR not present feature was being open-coded for KVM.
Add it to its newly added CPUID leaf 0x80000021 EAX proper.
Also drop the bit description comments now the code is more
self-describing.
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20230124163319.2277355-7-kim.phillips@amd.com
Diffstat (limited to 'arch/x86/include/asm/cpufeatures.h')
| -rw-r--r-- | arch/x86/include/asm/cpufeatures.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index 6bed80cf0dc5..86e98bd12064 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -431,6 +431,7 @@ #define X86_FEATURE_NO_NESTED_DATA_BP (20*32+ 0) /* "" No Nested Data Breakpoints */ #define X86_FEATURE_LFENCE_RDTSC (20*32+ 2) /* "" LFENCE always serializing / synchronizes RDTSC */ #define X86_FEATURE_NULL_SEL_CLR_BASE (20*32+ 6) /* "" Null Selector Clears Base */ +#define X86_FEATURE_NO_SMM_CTL_MSR (20*32+ 9) /* "" SMM_CTL MSR is not present */ /* * BUG word(s) |