Re: [PATCH v3 09/15] KVM: nSVM: Use KVM-governed feature framework to track "TSC scaling enabled"

[Sean Christopherson]

On Wed, Aug 16, 2023, Yuan Yao wrote:
> On Tue, Aug 15, 2023 at 01:36:47PM -0700, Sean Christopherson wrote:
> > @@ -2981,7 +2982,8 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
> >
> >  		svm->tsc_ratio_msr = data;
> >
> > -		if (svm->tsc_scaling_enabled && is_guest_mode(vcpu))
> > +		if (guest_can_use(vcpu, X86_FEATURE_TSCRATEMSR) &&
> > +		    is_guest_mode(vcpu))
> 
> I prefer (is_guest_mode(vcpu) && ....), so I can skip them more quickly LOL.
> but anyway depends on you :-)

For this series, I want to do as much of a straight replacement as possible, i.e.
not change any ordering unless it's "necessary".