diff options
| author | Sean Christopherson <seanjc@google.com> | 2021-01-22 21:40:46 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-01-28 17:41:24 +0100 |
| commit | fb35d30fe5b06cc24444f0405da8fbe0be5330d1 (patch) | |
| tree | 1f257d2806bd8f77a72a1a9819268206986b3954 /arch/x86/include/asm/disabled-features.h | |
| parent | Linux 5.11-rc3 (diff) | |
| download | linux-fb35d30fe5b06cc24444f0405da8fbe0be5330d1.tar.xz linux-fb35d30fe5b06cc24444f0405da8fbe0be5330d1.zip | |
x86/cpufeatures: Assign dedicated feature word for CPUID_0x8000001F[EAX]
Collect the scattered SME/SEV related feature flags into a dedicated
word. There are now five recognized features in CPUID.0x8000001F.EAX,
with at least one more on the horizon (SEV-SNP). Using a dedicated word
allows KVM to use its automagic CPUID adjustment logic when reporting
the set of supported features to userspace.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Brijesh Singh <brijesh.singh@amd.com>
Link: https://lkml.kernel.org/r/20210122204047.2860075-2-seanjc@google.com
Diffstat (limited to 'arch/x86/include/asm/disabled-features.h')
| -rw-r--r-- | arch/x86/include/asm/disabled-features.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/include/asm/disabled-features.h b/arch/x86/include/asm/disabled-features.h index 7947cb1782da..b7dd944dc867 100644 --- a/arch/x86/include/asm/disabled-features.h +++ b/arch/x86/include/asm/disabled-features.h @@ -91,6 +91,7 @@ DISABLE_ENQCMD) #define DISABLED_MASK17 0 #define DISABLED_MASK18 0 -#define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 19) +#define DISABLED_MASK19 0 +#define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 20) #endif /* _ASM_X86_DISABLED_FEATURES_H */ |