x86/cpufeatures: Redefine synthetic virtual NMI bit as AMD's "real" vNMI

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The existing X86_FEATURE_VNMI is a synthetic feature flag that exists
purely to maintain /proc/cpuinfo's ABI, the "real" Intel vNMI feature flag
is tracked as VMX_FEATURE_VIRTUAL_NMIS, as the feature is enumerated
through VMX MSRs, not CPUID.

AMD is also gaining virtual NMI support, but in true VMX vs. SVM form,
enumerates support through CPUID, i.e. wants to add real feature flag for
vNMI.

Redefine the syntheic X86_FEATURE_VNMI to AMD's real CPUID bit to avoid
having both X86_FEATURE_VNMI and e.g. X86_FEATURE_AMD_VNMI.

Signed-off-by: Sean Christopherson <seanjc@google.com>

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This commit is contained in:

Sean Christopherson 2023-03-22 11:33:08 -07:00

parent ab2ee212a5

commit 3763bf5802

1 changed files with 4 additions and 4 deletions

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arch/x86/include/asm/cpufeatures.h

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