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KVM: VMX: Fix comment to specify PID.ON instead of PIR.ON

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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: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Liran Alon 2019-11-11 14:25:25 +02:00 committed by Paolo Bonzini
parent 7a5ee6edb4
commit d9ff2744ee
1 changed files with 1 additions and 1 deletions
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arch/x86/kvm/vmx/vmx.c
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@ -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();