On Wed, Aug 21, 2019 at 1:27 AM Paolo Bonzini <[email protected]> wrote:
>
> Even though it is preferrable to use SPEC_CTRL (represented by
> X86_FEATURE_AMD_SSBD) instead of VIRT_SPEC, VIRT_SPEC is always
> supported anyway because otherwise it would be impossible to
> migrate from old to new CPUs. Make this apparent in the
> result of KVM_GET_SUPPORTED_CPUID as well.
>
> While at it, reuse X86_FEATURE_* constants for the SVM leaf too.
>
> However, we need to hide the bit on Intel processors, so move
> the setting to svm_set_supported_cpuid.
>
> Cc: Konrad Rzeszutek Wilk <[email protected]>
> Reported-by: Eduardo Habkost <[email protected]>
> Signed-off-by: Paolo Bonzini <[email protected]>
Reviewed-by: Jim Mattson <[email protected]>
