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authorJan Kiszka <jan.kiszka@siemens.com>2010-11-16 22:30:02 +0100
committerAvi Kivity <avi@redhat.com>2011-01-12 11:29:19 +0200
commit0c106b5aaa727c7f508828e94cff4a98874f930c (patch)
tree24bcd4ff350c34e86ee76bdcac006d7c96de2719 /virt/kvm/assigned-dev.c
parent945ee35e0764a834bc5bc5d572085d5b6409902a (diff)
downloadlinux-linaro-stable-0c106b5aaa727c7f508828e94cff4a98874f930c.tar.gz
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>
Diffstat (limited to 'virt/kvm/assigned-dev.c')
-rw-r--r--virt/kvm/assigned-dev.c3
1 files changed, 3 insertions, 0 deletions
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;