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vfio/pci: Disable INTx in vfio_realize error path

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When vfio realize fails, INTx isn't disabled if it has been enabled.
This may confuse host side with unhandled interrupt report.

Fixes: c5478fea27 ("vfio/pci: Respond to KVM irqchip change notifier")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Zhenzhong Duan 2023-07-03 15:15:06 +08:00 • committed by Cédric Le Goater
parent 0ddcb39c93
commit adee0da036
1 changed files with 3 additions and 0 deletions
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3
hw/vfio/pci.c
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@ -3220,6 +3220,9 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
return; return;
out_deregister: out_deregister:
if (vdev->interrupt == VFIO_INT_INTx) {
vfio_intx_disable(vdev);
}
pci_device_set_intx_routing_notifier(&vdev->pdev, NULL); pci_device_set_intx_routing_notifier(&vdev->pdev, NULL);
if (vdev->irqchip_change_notifier.notify) { if (vdev->irqchip_change_notifier.notify) {
kvm_irqchip_remove_change_notifier(&vdev->irqchip_change_notifier); kvm_irqchip_remove_change_notifier(&vdev->irqchip_change_notifier);