Commit d9ff2744 authored by Liran Alon's avatar Liran Alon Committed by Paolo Bonzini
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KVM: VMX: Fix comment to specify PID.ON instead of PIR.ON 



The Outstanding Notification (ON) bit is part of the Posted Interrupt
Descriptor (PID) as opposed to the Posted Interrupts Register (PIR).
The latter is a bitmap for pending vectors.

Reviewed-by: default avatarJoao Martins <joao.m.martins@oracle.com>
Signed-off-by: default avatarLiran Alon <liran.alon@oracle.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 7a5ee6ed

arch/x86/kvm/vmx/vmx.c

+1 −1
Original line number Diff line number Diff line
@@ -6137,7 +6137,7 @@ static int vmx_sync_pir_to_irr(struct kvm_vcpu *vcpu) 
	if (pi_test_on(&vmx->pi_desc)) {

		pi_clear_on(&vmx->pi_desc);

		/*

		 * IOMMU can write to PIR.ON, so the barrier matters even on UP.

		 * IOMMU can write to PID.ON, so the barrier matters even on UP.

		 * But on x86 this is just a compiler barrier anyway.

		 */

		smp_mb__after_atomic();