On Fri, Feb 18, 2022, Paolo Bonzini wrote: > 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". Works for me. > > > +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. Ah, right, even if the the static_call_cond() is unnecessary because we want to make the hook mandatory if APICv is supported, APICv itself may not be supported. With the new shortlog, Reviewed-by: Sean Christopherson <seanjc@xxxxxxxxxx>