diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index d73ceecaf1c34c7d3d85c684f18b830b4f4db3d8..5d6bc773edab227f3efaffe6a74a1c469dcac7b6 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -1,13 +1,16 @@
 /*
- * Virtio PCI driver
+ * Virtio PCI driver - common functionality for all device versions
  *
  * This module allows virtio devices to be used over a virtual PCI device.
  * This can be used with QEMU based VMMs like KVM or Xen.
  *
  * Copyright IBM Corp. 2007
+ * Copyright Red Hat, Inc. 2014
  *
  * Authors:
  *  Anthony Liguori  <aliguori@us.ibm.com>
+ *  Rusty Russell <rusty@rustcorp.com.au>
+ *  Michael S. Tsirkin <mst@redhat.com>
  *
  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  * See the COPYING file in the top-level directory.
diff --git a/drivers/virtio/virtio_pci.h b/drivers/virtio/virtio_pci.h
index a3b12595d6c81e583aa9d9f7394e8f8ace940a6d..fba383c04d375ec168ce921a154061a6c1481001 100644
--- a/drivers/virtio/virtio_pci.h
+++ b/drivers/virtio/virtio_pci.h
@@ -1,15 +1,18 @@
 #ifndef _DRIVERS_VIRTIO_VIRTIO_PCI_H
 #define _DRIVERS_VIRTIO_VIRTIO_PCI_H
 /*
- * Virtio PCI driver
+ * Virtio PCI driver - APIs for common functionality for all device versions
  *
  * This module allows virtio devices to be used over a virtual PCI device.
  * This can be used with QEMU based VMMs like KVM or Xen.
  *
  * Copyright IBM Corp. 2007
+ * Copyright Red Hat, Inc. 2014
  *
  * Authors:
  *  Anthony Liguori  <aliguori@us.ibm.com>
+ *  Rusty Russell <rusty@rustcorp.com.au>
+ *  Michael S. Tsirkin <mst@redhat.com>
  *
  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  * See the COPYING file in the top-level directory.
diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c
index c3393d47097f0ae07a1c7250a94c6f187d83e9e7..d3b0a781f593190a3db4a385f7633ee9354b1b3e 100644
--- a/drivers/virtio/virtio_pci_legacy.c
+++ b/drivers/virtio/virtio_pci_legacy.c
@@ -1,13 +1,16 @@
 /*
- * Virtio PCI driver
+ * Virtio PCI driver - legacy device support
  *
  * This module allows virtio devices to be used over a virtual PCI device.
  * This can be used with QEMU based VMMs like KVM or Xen.
  *
  * Copyright IBM Corp. 2007
+ * Copyright Red Hat, Inc. 2014
  *
  * Authors:
  *  Anthony Liguori  <aliguori@us.ibm.com>
+ *  Rusty Russell <rusty@rustcorp.com.au>
+ *  Michael S. Tsirkin <mst@redhat.com>
  *
  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  * See the COPYING file in the top-level directory.