Commit 331ca0f8 authored by Miaohe Lin's avatar Miaohe Lin Committed by Paolo Bonzini
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KVM: apic: reuse smp_wmb() in kvm_make_request() 



kvm_make_request() provides smp_wmb() so pending_events changes are
guaranteed to be visible.

Signed-off-by: default avatarMiaohe Lin <linmiaohe@huawei.com>
Reviewed-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: default avatarSean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 20796447

arch/x86/kvm/lapic.c

+0 −3
Original line number Diff line number Diff line
@@ -1080,9 +1080,6 @@ static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode, 
			result = 1;

			/* assumes that there are only KVM_APIC_INIT/SIPI */

			apic->pending_events = (1UL << KVM_APIC_INIT);

			/* make sure pending_events is visible before sending

			 * the request */

			smp_wmb();

			kvm_make_request(KVM_REQ_EVENT, vcpu);

			kvm_vcpu_kick(vcpu);

		}