Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

---

diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c

index e8e0d82..fd0c73f 100644

--- a/hw/virtio-pci.c

+++ b/hw/virtio-pci.c

@@ -404,6 +404,7 @@ static void virtio_pci_guest_notifier_read(void *opaque)

     }

 }

+#ifdef CONFIG_KVM

 static int virtio_pci_mask_notifier(PCIDevice *dev, unsigned vector,

                                     void *opaque, int masked)

 {

@@ -424,6 +425,7 @@ static int virtio_pci_mask_notifier(PCIDevice *dev, unsigned vector,

     }

     return 0;

 }

+#endif

 static int virtio_pci_guest_notifier(void *opaque, int n, bool assign)

 {

@@ -526,7 +528,9 @@ static void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev,

     proxy->pci_dev.config_write = virtio_write_config;

+#ifdef CONFIG_KVM

     proxy->pci_dev.msix_mask_notifier = virtio_pci_mask_notifier;

+#endif

     size = VIRTIO_PCI_REGION_SIZE(&proxy->pci_dev) + vdev->config_len;

     if (size & (size-1))