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Commit fc5f06fa authored by Gleb Natapov's avatar Gleb Natapov Committed by Avi Kivity
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KVM: Send async PF when guest is not in userspace too. 



If guest indicates that it can handle async pf in kernel mode too send
it, but only if interrupts are enabled.

Acked-by: default avatarRik van Riel <riel@redhat.com>
Signed-off-by: default avatarGleb Natapov <gleb@redhat.com>
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
parent 6adba527

arch/x86/kvm/x86.c

+2 −1
Original line number Diff line number Diff line
@@ -6263,7 +6263,8 @@ void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, 
	kvm_add_async_pf_gfn(vcpu, work->arch.gfn);



	if (!(vcpu->arch.apf.msr_val & KVM_ASYNC_PF_ENABLED) ||

	    kvm_x86_ops->get_cpl(vcpu) == 0)

	    (vcpu->arch.apf.send_user_only &&

	     kvm_x86_ops->get_cpl(vcpu) == 0))

		kvm_make_request(KVM_REQ_APF_HALT, vcpu);

	else if (!apf_put_user(vcpu, KVM_PV_REASON_PAGE_NOT_PRESENT)) {

		vcpu->arch.fault.error_code = 0;