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-rw-r--r--drivers/xen/xen-pciback/pciback_ops.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/xen/xen-pciback/pciback_ops.c b/drivers/xen/xen-pciback/pciback_ops.c
index 2b9a93e1fdee..011db675e437 100644
--- a/drivers/xen/xen-pciback/pciback_ops.c
+++ b/drivers/xen/xen-pciback/pciback_ops.c
@@ -23,6 +23,14 @@ void pciback_reset_device(struct pci_dev *dev)
/* Disable devices (but not bridges) */
if (dev->hdr_type == PCI_HEADER_TYPE_NORMAL) {
+#ifdef CONFIG_PCI_MSI
+ /* The guest could have been abruptly killed without
+ * disabling MSI/MSI-X interrupts.*/
+ if (dev->msix_enabled)
+ pci_disable_msix(dev);
+ if (dev->msi_enabled)
+ pci_disable_msi(dev);
+#endif
pci_disable_device(dev);
pci_write_config_word(dev, PCI_COMMAND, 0);
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