Gather the AMD memory encryption features into a dedicated word for CPUID 0x8000001F[EAX] and use the new word in KVM to adjust its reporting of SEV support based on host kernel enabling. Paolo, can you ack patch 2? Boris is planning on taking this through the tip tree. Thanks! Split out from a larger KVM SEV cleanup series[*], thus the somewhat questionable v3 tag. Based on v5.11-rc4. [*] https://lkml.kernel.org/r/20210114003708.3798992-1-seanjc@xxxxxxxxxx Sean Christopherson (2): x86/cpufeatures: Assign dedicated feature word for CPUID_0x8000001F[EAX] KVM: x86: Override reported SME/SEV feature flags with host mask arch/x86/include/asm/cpufeature.h | 7 +++++-- arch/x86/include/asm/cpufeatures.h | 17 +++++++++++------ arch/x86/include/asm/disabled-features.h | 3 ++- arch/x86/include/asm/required-features.h | 3 ++- arch/x86/kernel/cpu/common.c | 3 +++ arch/x86/kernel/cpu/scattered.c | 5 ----- arch/x86/kvm/cpuid.c | 2 ++ arch/x86/kvm/cpuid.h | 1 + tools/arch/x86/include/asm/disabled-features.h | 3 ++- tools/arch/x86/include/asm/required-features.h | 3 ++- 10 files changed, 30 insertions(+), 17 deletions(-) -- 2.30.0.280.ga3ce27912f-goog
