From 0c106b5aaa727c7f508828e94cff4a98874f930c Mon Sep 17 00:00:00 2001 From: Jan Kiszka <jan.kiszka@siemens.com> Date: Tue, 16 Nov 2010 22:30:02 +0100 Subject: [PATCH] KVM: Clear assigned guest IRQ on release When we deassign a guest IRQ, clear the potentially asserted guest line. There might be no chance for the guest to do this, specifically if we switch from INTx to MSI mode. Acked-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> --- virt/kvm/assigned-dev.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/virt/kvm/assigned-dev.c b/virt/kvm/assigned-dev.c index 7c98928b09d9..ecc4419fadca 100644 --- a/virt/kvm/assigned-dev.c +++ b/virt/kvm/assigned-dev.c @@ -141,6 +141,9 @@ static void deassign_guest_irq(struct kvm *kvm, kvm_unregister_irq_ack_notifier(kvm, &assigned_dev->ack_notifier); assigned_dev->ack_notifier.gsi = -1; + kvm_set_irq(assigned_dev->kvm, assigned_dev->irq_source_id, + assigned_dev->guest_irq, 0); + if (assigned_dev->irq_source_id != -1) kvm_free_irq_source_id(kvm, assigned_dev->irq_source_id); assigned_dev->irq_source_id = -1; -- GitLab