diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 958b77beee..b38f48938b 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -2730,7 +2730,7 @@ virDomainDefPostParseDeviceIterator(virDomainDefPtr def ATTRIBUTE_UNUSED,
 }
 
 
-static int
+int
 virDomainDefPostParse(virDomainDefPtr def,
                       virCapsPtr caps,
                       virDomainXMLOptionPtr xmlopt)
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index d9ea1c1fba..8d85966844 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -2040,6 +2040,11 @@ virDomainXMLNamespacePtr
 virDomainXMLOptionGetNamespace(virDomainXMLOptionPtr xmlopt)
     ATTRIBUTE_NONNULL(1);
 
+int
+virDomainDefPostParse(virDomainDefPtr def,
+                      virCapsPtr caps,
+                      virDomainXMLOptionPtr xmlopt);
+
 static inline bool
 virDomainObjIsActive(virDomainObjPtr dom)
 {
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index b3f8521727..3b1a6dd578 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -119,6 +119,7 @@ virDomainDefGetSecurityLabelDef;
 virDomainDefParseFile;
 virDomainDefParseNode;
 virDomainDefParseString;
+virDomainDefPostParse;
 virDomainDeleteConfig;
 virDomainDeviceAddressIsValid;
 virDomainDeviceAddressTypeToString;
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 6cca229113..d4fcaecb76 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -8242,6 +8242,7 @@ qemuParseCommandLineDisk(virDomainXMLOptionPtr xmlopt,
     def->bus = VIR_DOMAIN_DISK_BUS_IDE;
     def->device = VIR_DOMAIN_DISK_DEVICE_DISK;
     def->type = VIR_DOMAIN_DISK_TYPE_FILE;
+    def->format = VIR_STORAGE_FILE_AUTO;
 
     for (i = 0 ; i < nkeywords ; i++) {
         if (STREQ(keywords[i], "file")) {
@@ -9489,6 +9490,8 @@ virDomainDefPtr qemuParseCommandLine(virCapsPtr qemuCaps,
             if (VIR_ALLOC(disk) < 0)
                 goto no_memory;
 
+            disk->format = VIR_STORAGE_FILE_AUTO;
+
             if (STRPREFIX(val, "/dev/"))
                 disk->type = VIR_DOMAIN_DISK_TYPE_BLOCK;
             else if (STRPREFIX(val, "nbd:")) {
@@ -10151,6 +10154,9 @@ virDomainDefPtr qemuParseCommandLine(virCapsPtr qemuCaps,
     if (virDomainDefAddImplicitControllers(def) < 0)
         goto error;
 
+    if (virDomainDefPostParse(def, qemuCaps, xmlopt) < 0)
+        goto error;
+
     if (cmd->num_args || cmd->num_env) {
         def->ns = *virDomainXMLOptionGetNamespace(xmlopt);
         def->namespaceData = cmd;
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-boot-cdrom.xml b/tests/qemuxml2argvdata/qemuxml2argv-boot-cdrom.xml
index 6cb941d16e..775101d403 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-boot-cdrom.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-boot-cdrom.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='cdrom'>
+      <driver name='qemu'/>
       <source dev='/dev/cdrom'/>
       <target dev='hdc' bus='ide'/>
       <readonly/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy.xml b/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy.xml
index 5c50e09799..c877adfdd1 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy.xml
@@ -15,11 +15,13 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <disk type='file' device='floppy'>
+      <driver name='qemu'/>
       <source file='/tmp/firmware.img'/>
       <target dev='fda' bus='fdc'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-boot-network.xml b/tests/qemuxml2argvdata/qemuxml2argv-boot-network.xml
index 0d296081b9..e7dad411a3 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-boot-network.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-boot-network.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-clock-localtime.xml b/tests/qemuxml2argvdata/qemuxml2argv-clock-localtime.xml
index 96058f13b2..79336dbc26 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-clock-localtime.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-clock-localtime.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-clock-utc.xml b/tests/qemuxml2argvdata/qemuxml2argv-clock-utc.xml
index c4d483abfc..37dc45a52d 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-clock-utc.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-clock-utc.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-console-compat.xml b/tests/qemuxml2argvdata/qemuxml2argv-console-compat.xml
index e3821cdc45..a531df5a71 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-console-compat.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-console-compat.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-cdrom-empty.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-cdrom-empty.xml
index f885be15b2..1aabfe2886 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-disk-cdrom-empty.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-cdrom-empty.xml
@@ -15,11 +15,13 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <disk type='file' device='cdrom'>
+      <driver name='qemu'/>
       <target dev='hdc' bus='ide'/>
       <readonly/>
       <address type='drive' controller='0' bus='1' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-cdrom.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-cdrom.xml
index e8c9949b52..58cf0c7d0c 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-disk-cdrom.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-cdrom.xml
@@ -15,11 +15,13 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <disk type='file' device='cdrom'>
+      <driver name='qemu'/>
       <source file='/root/boot.iso'/>
       <target dev='hdc' bus='ide'/>
       <readonly/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-boot-cdrom.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-boot-cdrom.xml
index 532dbc486d..c4b7aff4fa 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-boot-cdrom.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-boot-cdrom.xml
@@ -15,11 +15,13 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <disk type='block' device='cdrom'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest2'/>
       <target dev='hdc' bus='ide'/>
       <address type='drive' controller='0' bus='1' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-boot-disk.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-boot-disk.xml
index 016afad216..055bcb2588 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-boot-disk.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-boot-disk.xml
@@ -15,11 +15,13 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <disk type='block' device='cdrom'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest2'/>
       <target dev='hdc' bus='ide'/>
       <address type='drive' controller='0' bus='1' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-rbd-ceph-env.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-rbd-ceph-env.xml
index 8309cae648..fa4328cca2 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-rbd-ceph-env.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-rbd-ceph-env.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-floppy.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-floppy.xml
index c0c6629582..cdad2cd0b8 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-disk-floppy.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-floppy.xml
@@ -15,16 +15,19 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <disk type='block' device='floppy'>
+      <driver name='qemu'/>
       <source dev='/dev/fd0'/>
       <target dev='fda' bus='fdc'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <disk type='file' device='floppy'>
+      <driver name='qemu'/>
       <source file='/tmp/firmware.img'/>
       <target dev='fdb' bus='fdc'/>
       <address type='drive' controller='0' bus='0' target='0' unit='1'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-many.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-many.xml
index ba044d1a90..84f96c3b09 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-disk-many.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-many.xml
@@ -15,21 +15,25 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest2'/>
       <target dev='hdb' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='1'/>
     </disk>
     <disk type='file' device='disk'>
+      <driver name='qemu'/>
       <source file='/tmp/data.img'/>
       <target dev='hdc' bus='ide'/>
       <address type='drive' controller='0' bus='1' target='0' unit='0'/>
     </disk>
     <disk type='file' device='disk'>
+      <driver name='qemu'/>
       <source file='/tmp/logs.img'/>
       <target dev='hdd' bus='ide'/>
       <address type='drive' controller='0' bus='1' target='0' unit='1'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-usb.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-usb.xml
index d401d7d445..455cd87602 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-disk-usb.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-usb.xml
@@ -15,11 +15,13 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <disk type='file' device='disk'>
+      <driver name='qemu' type='raw'/>
       <source file='/tmp/usbdisk.img'/>
       <target dev='sda' bus='usb'/>
     </disk>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-virtio.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-virtio.xml
index 29f406e427..10214df6a0 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-disk-virtio.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-virtio.xml
@@ -15,21 +15,25 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <disk type='block' device='cdrom'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest2'/>
       <target dev='hdc' bus='ide'/>
       <readonly/>
       <address type='drive' controller='0' bus='1' target='0' unit='0'/>
     </disk>
     <disk type='file' device='disk'>
+      <driver name='qemu'/>
       <source file='/tmp/data.img'/>
       <target dev='vda' bus='virtio'/>
     </disk>
     <disk type='file' device='disk'>
+      <driver name='qemu'/>
       <source file='/tmp/logs.img'/>
       <target dev='vdb' bus='virtio'/>
     </disk>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-xenvbd.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-xenvbd.xml
index 0795fe3e35..d3cbd0b79f 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-disk-xenvbd.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-xenvbd.xml
@@ -15,21 +15,25 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <disk type='block' device='cdrom'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest2'/>
       <target dev='hdc' bus='ide'/>
       <readonly/>
       <address type='drive' controller='0' bus='1' target='0' unit='0'/>
     </disk>
     <disk type='file' device='disk'>
+      <driver name='qemu'/>
       <source file='/tmp/data.img'/>
       <target dev='xvda' bus='xen'/>
     </disk>
     <disk type='file' device='disk'>
+      <driver name='qemu'/>
       <source file='/tmp/logs.img'/>
       <target dev='xvdg' bus='xen'/>
     </disk>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-sdl-fullscreen.xml b/tests/qemuxml2argvdata/qemuxml2argv-graphics-sdl-fullscreen.xml
index d0e9d771aa..5f08b6c83c 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-sdl-fullscreen.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-sdl-fullscreen.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-sdl.xml b/tests/qemuxml2argvdata/qemuxml2argv-graphics-sdl.xml
index f3cdf69c37..5779e48f95 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-sdl.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-sdl.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-sasl.xml b/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-sasl.xml
index 70a7ce364e..0892198280 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-sasl.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-sasl.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-socket.xml b/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-socket.xml
index 8ef7d058f6..1b2c5eda0e 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-socket.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-socket.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-tls.xml b/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-tls.xml
index 70a7ce364e..0892198280 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-tls.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-tls.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc.xml b/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc.xml
index 663b547a7c..509c0a4e30 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hostdev-pci-address.xml b/tests/qemuxml2argvdata/qemuxml2argv-hostdev-pci-address.xml
index 3c69f83ede..0e44a48347 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-hostdev-pci-address.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-hostdev-pci-address.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest2'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address.xml b/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address.xml
index 811e987ef7..714b66c823 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-input-usbmouse.xml b/tests/qemuxml2argvdata/qemuxml2argv-input-usbmouse.xml
index 6548c303ff..3abdaeaeb3 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-input-usbmouse.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-input-usbmouse.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-input-usbtablet.xml b/tests/qemuxml2argvdata/qemuxml2argv-input-usbtablet.xml
index 345bdb368f..2f8baeee92 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-input-usbtablet.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-input-usbtablet.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-machine-core-off.xml b/tests/qemuxml2argvdata/qemuxml2argv-machine-core-off.xml
index 5ef3da0887..3fdb6742f6 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-machine-core-off.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-machine-core-off.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-machine-core-on.xml b/tests/qemuxml2argvdata/qemuxml2argv-machine-core-on.xml
index b2cfe23807..89482a8d4a 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-machine-core-on.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-machine-core-on.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-migrate.xml b/tests/qemuxml2argvdata/qemuxml2argv-migrate.xml
index 961e5af3e8..9e2f1623d9 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-migrate.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-migrate.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-misc-acpi.xml b/tests/qemuxml2argvdata/qemuxml2argv-misc-acpi.xml
index 9c8e5dd720..8494e80ca6 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-misc-acpi.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-misc-acpi.xml
@@ -18,6 +18,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-misc-disable-s3.xml b/tests/qemuxml2argvdata/qemuxml2argv-misc-disable-s3.xml
index b89327dc96..802bc09f8f 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-misc-disable-s3.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-misc-disable-s3.xml
@@ -18,6 +18,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-misc-disable-suspends.xml b/tests/qemuxml2argvdata/qemuxml2argv-misc-disable-suspends.xml
index fe0cf99a0a..a12867d218 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-misc-disable-suspends.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-misc-disable-suspends.xml
@@ -19,6 +19,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-misc-enable-s4.xml b/tests/qemuxml2argvdata/qemuxml2argv-misc-enable-s4.xml
index fd65832c91..e181c018d6 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-misc-enable-s4.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-misc-enable-s4.xml
@@ -18,6 +18,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-misc-no-reboot.xml b/tests/qemuxml2argvdata/qemuxml2argv-misc-no-reboot.xml
index 72d4bfb6f1..6561537044 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-misc-no-reboot.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-misc-no-reboot.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-misc-uuid.xml b/tests/qemuxml2argvdata/qemuxml2argv-misc-uuid.xml
index 9c8e5dd720..8494e80ca6 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-misc-uuid.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-misc-uuid.xml
@@ -18,6 +18,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-net-eth-ifname.xml b/tests/qemuxml2argvdata/qemuxml2argv-net-eth-ifname.xml
index b150371ba8..1f5317e5f9 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-net-eth-ifname.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-net-eth-ifname.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-net-eth.xml b/tests/qemuxml2argvdata/qemuxml2argv-net-eth.xml
index eca5da563b..aacc8a6650 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-net-eth.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-net-eth.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-net-user.xml b/tests/qemuxml2argvdata/qemuxml2argv-net-user.xml
index fe3a271967..e99b9a19cb 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-net-user.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-net-user.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-net-virtio.xml b/tests/qemuxml2argvdata/qemuxml2argv-net-virtio.xml
index ff7ea01392..1bcffdf7be 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-net-virtio.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-net-virtio.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-nographics-vga.xml b/tests/qemuxml2argvdata/qemuxml2argv-nographics-vga.xml
index 961e5af3e8..9e2f1623d9 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-nographics-vga.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-nographics-vga.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-parallel-tcp.xml b/tests/qemuxml2argvdata/qemuxml2argv-parallel-tcp.xml
index 23f1064f67..855836c70f 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-parallel-tcp.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-parallel-tcp.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-qemu-ns-no-env.xml b/tests/qemuxml2argvdata/qemuxml2argv-qemu-ns-no-env.xml
index 826ea30413..7151b54723 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-qemu-ns-no-env.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-qemu-ns-no-env.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-restore-v1.xml b/tests/qemuxml2argvdata/qemuxml2argv-restore-v1.xml
index c4d483abfc..37dc45a52d 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-restore-v1.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-restore-v1.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-restore-v2.xml b/tests/qemuxml2argvdata/qemuxml2argv-restore-v2.xml
index 961e5af3e8..9e2f1623d9 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-restore-v2.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-restore-v2.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-dev.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-dev.xml
index 61e382c79c..1f7ee972ab 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-serial-dev.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-dev.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-file.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-file.xml
index c6780aacf7..1542f0052c 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-serial-file.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-file.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-many.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-many.xml
index 98bbb564a4..1eecfb78bd 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-serial-many.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-many.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-pty.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-pty.xml
index 5d03125c45..be7113289f 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-serial-pty.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-pty.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-telnet.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-telnet.xml
index cbd5bdcd6e..9598df33d4 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-telnet.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-telnet.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp.xml
index 082b99bda4..3144fe96ab 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-udp.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-udp.xml
index 0ff161d9a3..27d4170222 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-serial-udp.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-udp.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-unix.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-unix.xml
index 425b442119..c5f4dc5921 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-serial-unix.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-unix.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-vc.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-vc.xml
index 7a72a9f741..202478d334 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-serial-vc.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-vc.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-smp.xml b/tests/qemuxml2argvdata/qemuxml2argv-smp.xml
index 6a48c2ee8c..03daef6349 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-smp.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-smp.xml
@@ -18,6 +18,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-sound.xml b/tests/qemuxml2argvdata/qemuxml2argv-sound.xml
index ac78502254..8e8078e8fd 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-sound.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-sound.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-watchdog.xml b/tests/qemuxml2argvdata/qemuxml2argv-watchdog.xml
index 4de94ec9cc..52b462420c 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-watchdog.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-watchdog.xml
@@ -15,6 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <disk type='block' device='disk'>
+      <driver name='qemu'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>