diff options
Diffstat (limited to 'arch/x86/pci/xen.c')
| -rw-r--r-- | arch/x86/pci/xen.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c index 56ab74989cf..4a9be6ddf05 100644 --- a/arch/x86/pci/xen.c +++ b/arch/x86/pci/xen.c @@ -162,6 +162,9 @@ static int xen_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) struct msi_desc *msidesc; int *v; + if (type == PCI_CAP_ID_MSI && nvec > 1) + return 1; + v = kzalloc(sizeof(int) * max(1, nvec), GFP_KERNEL); if (!v) return -ENOMEM; @@ -174,7 +177,7 @@ static int xen_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) goto error; i = 0; list_for_each_entry(msidesc, &dev->msi_list, list) { - irq = xen_bind_pirq_msi_to_irq(dev, msidesc, v[i], 0, + irq = xen_bind_pirq_msi_to_irq(dev, msidesc, v[i], (type == PCI_CAP_ID_MSIX) ? "pcifront-msi-x" : "pcifront-msi", @@ -220,6 +223,9 @@ static int xen_hvm_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) struct msi_desc *msidesc; struct msi_msg msg; + if (type == PCI_CAP_ID_MSI && nvec > 1) + return 1; + list_for_each_entry(msidesc, &dev->msi_list, list) { __read_msi_msg(msidesc, &msg); pirq = MSI_ADDR_EXT_DEST_ID(msg.address_hi) | @@ -238,7 +244,7 @@ static int xen_hvm_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) dev_dbg(&dev->dev, "xen: msi already bound to pirq=%d\n", pirq); } - irq = xen_bind_pirq_msi_to_irq(dev, msidesc, pirq, 0, + irq = xen_bind_pirq_msi_to_irq(dev, msidesc, pirq, (type == PCI_CAP_ID_MSIX) ? "msi-x" : "msi", DOMID_SELF); @@ -263,6 +269,9 @@ static int xen_initdom_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) int ret = 0; struct msi_desc *msidesc; + if (type == PCI_CAP_ID_MSI && nvec > 1) + return 1; + list_for_each_entry(msidesc, &dev->msi_list, list) { struct physdev_map_pirq map_irq; domid_t domid; @@ -317,7 +326,7 @@ static int xen_initdom_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) } ret = xen_bind_pirq_msi_to_irq(dev, msidesc, - map_irq.pirq, map_irq.index, + map_irq.pirq, (type == PCI_CAP_ID_MSIX) ? "msi-x" : "msi", domid); |