diff options
| author | Sean Christopherson <seanjc@google.com> | 2021-01-22 23:40:46 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-01-28 19:41:24 +0300 |
| commit | fb35d30fe5b06cc24444f0405da8fbe0be5330d1 (patch) | |
| tree | 1f257d2806bd8f77a72a1a9819268206986b3954 /tools/arch/x86 | |
| parent | 7c53f6b671f4aba70ff15e1b05148b10d58c2837 (diff) | |
| download | linux-fb35d30fe5b06cc24444f0405da8fbe0be5330d1.tar.xz | |
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 'tools/arch/x86')
| -rw-r--r-- | tools/arch/x86/include/asm/disabled-features.h | 3 | ||||
| -rw-r--r-- | tools/arch/x86/include/asm/required-features.h | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/tools/arch/x86/include/asm/disabled-features.h b/tools/arch/x86/include/asm/disabled-features.h index 7947cb1782da..b7dd944dc867 100644 --- a/tools/arch/x86/include/asm/disabled-features.h +++ b/tools/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 */ diff --git a/tools/arch/x86/include/asm/required-features.h b/tools/arch/x86/include/asm/required-features.h index 3ff0d48469f2..b2d504f11937 100644 --- a/tools/arch/x86/include/asm/required-features.h +++ b/tools/arch/x86/include/asm/required-features.h @@ -101,6 +101,7 @@ #define REQUIRED_MASK16 0 #define REQUIRED_MASK17 0 #define REQUIRED_MASK18 0 -#define REQUIRED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 19) +#define REQUIRED_MASK19 0 +#define REQUIRED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 20) #endif /* _ASM_X86_REQUIRED_FEATURES_H */ |