libvirt/tests/qemuhotplugtestdevices/qemuhotplug-disk-cdrom-nochange.xml

    <disk type='block' device='disk'>
      <driver name='qemu' type='raw'/>
      <source dev='/dev/HostVG/QEMUGuest1'/>
      <target dev='hda' bus='ide'/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>