diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index 101db3f..5ae1844 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -62,6 +62,8 @@ struct virtio_pci_device
 
 	/* Whether we have vector per vq */
 	bool per_vq_vectors;
+
+	char config_msix_name[256];
 };
 
 /* Constants for MSI-X */
@@ -302,6 +304,8 @@ static void vp_free_vectors(struct virtio_device *vdev)
 	vp_dev->msix_affinity_masks = NULL;
 }
 
+static struct msix_entry *config_msix_entry;
+static char *config_msix_name;
 static int vp_request_msix_vectors(struct virtio_device *vdev, int nvectors,
 				   bool per_vq_vectors)
 {
@@ -309,9 +313,14 @@ static int vp_request_msix_vectors(struct virtio_device *vdev, int nvectors,
 	const char *name = dev_name(&vp_dev->vdev.dev);
 	unsigned i, v;
 	int err = -ENOMEM;
+        int has_config_msix = 1;
 
-	vp_dev->msix_vectors = nvectors;
+        if (!config_msix_entry) {
+		has_config_msix = 0;
+		nvectors += 1;
+        }
 
+	vp_dev->msix_vectors = nvectors;
 	vp_dev->msix_entries = kmalloc(nvectors * sizeof *vp_dev->msix_entries,
 				       GFP_KERNEL);
 	if (!vp_dev->msix_entries)
@@ -341,14 +350,24 @@ static int vp_request_msix_vectors(struct virtio_device *vdev, int nvectors,
 
 	/* Set the vector used for configuration */
 	v = vp_dev->msix_used_vectors;
-	snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names,
+
+        if (has_config_msix == 0) {
+		config_msix_entry = &vp_dev->msix_entries[v];
+		config_msix_name = vp_dev->msix_names[v];
+        } else {
+		config_msix_name = vp_dev->config_msix_name;
+	}
+
+	snprintf(vp_dev->config_msix_name, sizeof *vp_dev->msix_names,
 		 "%s-config", name);
-	err = request_irq(vp_dev->msix_entries[v].vector,
-			  vp_config_changed, 0, vp_dev->msix_names[v],
-			  vp_dev);
+	err = request_irq(config_msix_entry->vector,
+                          vp_config_changed, IRQF_SHARED,
+                          vp_dev->config_msix_name, vp_dev);
 	if (err)
 		goto error;
-	++vp_dev->msix_used_vectors;
+
+        if (has_config_msix == 0)
+             ++vp_dev->msix_used_vectors;
 
 	iowrite16(v, vp_dev->ioaddr + VIRTIO_MSI_CONFIG_VECTOR);
 	/* Verify we had enough resources to assign the vector */
@@ -536,13 +555,13 @@ static int vp_try_to_find_vqs(struct virtio_device *vdev, unsigned nvqs,
 	} else {
 		if (per_vq_vectors) {
 			/* Best option: one for change interrupt, one per vq. */
-			nvectors = 1;
+			nvectors = 0;
 			for (i = 0; i < nvqs; ++i)
 				if (callbacks[i])
 					++nvectors;
 		} else {
 			/* Second best: one for change, shared for all vqs. */
-			nvectors = 2;
+			nvectors = 1;
 		}
 
 		err = vp_request_msix_vectors(vdev, nvectors, per_vq_vectors);