Re: [PATCH v3 5/6] KVM: x86: make several AVIC callbacks optional

[Paolo Bonzini]

On 2/18/22 17:23, Sean Christopherson wrote:
> The "AVIC" callbacks are being deleted, not
> made optional, it's kvm_x86_ops' APICv hooks that are becoming optional.

Maybe "make several APIC virtualization callbacks optional".

> > +KVM_X86_OP_OPTIONAL(apicv_post_state_restore)
>
> apicv_post_state_restore() isn't conditional, it's implemented and wired up
> unconditionally by both VMX and SVM.

True, on the other hand there's no reason why a hypothetical third 
vendor would have to support it.  The call is conditional to 
apicv_active being true.

Paolo