1 files changed, 17 insertions, 0 deletions

diff --git a/drivers/xen/xen-pciback/conf_space_capability_msi.c b/drivers/xen/xen-pciback/conf_space_capability_msi.c
index 78f74b1852d4..d0d2255b5da9 100644
--- a/drivers/xen/xen-pciback/conf_space_capability_msi.c
+++ b/drivers/xen/xen-pciback/conf_space_capability_msi.c
@@ -12,6 +12,7 @@
 int pciback_enable_msi(struct pciback_device *pdev,
                 struct pci_dev *dev, struct xen_pci_op *op)
 {
+        struct pciback_dev_data *dev_data;
         int otherend = pdev->xdev->otherend_id;
         int status;
 
@@ -28,21 +29,29 @@ int pciback_enable_msi(struct pciback_device *pdev,
          * the local domain's IRQ number. */
 
         op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0;
+        dev_data = pci_get_drvdata(dev);
+        if (dev_data)
+                dev_data->ack_intr = 0;
         return 0;
 }
 
 int pciback_disable_msi(struct pciback_device *pdev,
                 struct pci_dev *dev, struct xen_pci_op *op)
 {
+        struct pciback_dev_data *dev_data;
         pci_disable_msi(dev);
 
         op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0;
+        dev_data = pci_get_drvdata(dev);
+        if (dev_data)
+                dev_data->ack_intr = 1;
         return 0;
 }
 
 int pciback_enable_msix(struct pciback_device *pdev,
                 struct pci_dev *dev, struct xen_pci_op *op)
 {
+        struct pciback_dev_data *dev_data;
         int i, result;
         struct msix_entry *entries;
 
@@ -74,6 +83,9 @@ int pciback_enable_msix(struct pciback_device *pdev,
         kfree(entries);
 
         op->value = result;
+        dev_data = pci_get_drvdata(dev);
+        if (dev_data)
+                dev_data->ack_intr = 0;
 
         return result;
 }
@@ -81,6 +93,7 @@ int pciback_enable_msix(struct pciback_device *pdev,
 int pciback_disable_msix(struct pciback_device *pdev,
                 struct pci_dev *dev, struct xen_pci_op *op)
 {
+        struct pciback_dev_data *dev_data;
 
         pci_disable_msix(dev);
 
@@ -89,6 +102,10 @@ int pciback_disable_msix(struct pciback_device *pdev,
          * an undefined IRQ value of zero.
          */
         op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0;
+        dev_data = pci_get_drvdata(dev);
+        if (dev_data)
+                dev_data->ack_intr = 1;
+
         return 0;
 }