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[3/6] arm/arm64: KVM: vgic: Clear queued flags on unqueue

Message ID 1405003196-12403-4-git-send-email-christoffer.dall@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Christoffer Dall July 10, 2014, 2:39 p.m. UTC 
If we unqueue a level-triggered interrupt completely, and the LR does
not stick around in the active state (and will therefore no longer
generate a maintenance interrupt), then we should clear the queued flag
so that the vgic can actually queue this level-triggered interrupt at a
later time and deal with its pending state then.

Note: This should actually be properly fixed to handle the active state
on the distributor.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 virt/kvm/arm/vgic.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index c5b1ad7..1b85f42 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -662,8 +662,10 @@  static void vgic_unqueue_irqs(struct kvm_vcpu *vcpu)
 		 * active), then the LR does not hold any useful info and can
 		 * be marked as free for other use.
 		 */
-		if (!(lr.state & LR_STATE_MASK))
+		if (!(lr.state & LR_STATE_MASK)) {
 			vgic_retire_lr(i, lr.irq, vcpu);
+			vgic_irq_clear_queued(vcpu, lr.irq);
+		}
 
 		/* Finally update the VGIC state. */
 		vgic_update_state(vcpu->kvm);