1 files changed, 9 insertions, 0 deletions

diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index 56ab74989cf1..94e76620460f 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;
@@ -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) |
@@ -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;