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[PATCH v5 3/7] vfio/pci: Disable INTx in vfio_realize error path
From: |
Zhenzhong Duan |
Subject: |
[PATCH v5 3/7] vfio/pci: Disable INTx in vfio_realize error path |
Date: |
Fri, 30 Jun 2023 15:36:33 +0800 |
When vfio realize fails, INTx isn't disabled if it has been enabled.
This may confuse host side with unhandled interrupt report.
Fixes: c5478fea27ac ("vfio/pci: Respond to KVM irqchip change notifier")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
---
hw/vfio/pci.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index ab6645ba60af..31c4ab250fbe 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -3220,6 +3220,9 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
return;
out_deregister:
+ if (vdev->interrupt == VFIO_INT_INTx) {
+ vfio_intx_disable(vdev);
+ }
pci_device_set_intx_routing_notifier(&vdev->pdev, NULL);
if (vdev->irqchip_change_notifier.notify) {
kvm_irqchip_remove_change_notifier(&vdev->irqchip_change_notifier);
--
2.34.1