On Wed, Aug 21, 2019 at 1:27 AM Paolo Bonzini <pbonzini@xxxxxxxxxx> 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 <konrad.wilk@xxxxxxxxxx> > Reported-by: Eduardo Habkost <ehabkost@xxxxxxxxxx> > Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> Reviewed-by: Jim Mattson <jmattson@xxxxxxxxxx>
