KVM_FEATURE_ASYNC_PF_VMEXIT
if (kvm_para_has_feature(KVM_FEATURE_ASYNC_PF_VMEXIT))
(1 << KVM_FEATURE_ASYNC_PF_VMEXIT) |
if (!guest_pv_has(vcpu, KVM_FEATURE_ASYNC_PF_VMEXIT) &&