Re: [PATCH v3 3/4] KVM: SVM: Add support for Hypervisor Feature support MSR protocol

[Sean Christopherson]

On Mon, Sep 13, 2021, Joerg Roedel wrote:
> diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h
> index 524d943f3efc..f019da28ff06 100644
> --- a/arch/x86/kvm/svm/svm.h
> +++ b/arch/x86/kvm/svm/svm.h
> @@ -542,6 +542,7 @@ void svm_vcpu_unblocking(struct kvm_vcpu *vcpu);
>  #define GHCB_VERSION_MAX	1ULL
>  #define GHCB_VERSION_MIN	1ULL
>  
> +#define GHCB_HV_FT_SUPPORTED	0

I'd prefer to keep these SEV-only defines in sev.c.  I also think it should have
KVM somewhere in the name, a la KVM_SUPPORTED_XCR0, e.g. KVM_SUPPORTED_GHCB_FEATURES?