     <vsock model="virtio">
       <cid auto="no" address="5"/>
     </vsock>
+    <disk type="file" device="disk">
+      <source file="/var/lib/libvirt/images/test-for-virtxml.qcow2"/>
+      <target dev="hdb" bus="ide"/>
+    </disk>
   </devices>
   <seclabel type="dynamic" model="selinux" relabel="yes"/>
   <keywrap>

Domain 'test-for-virtxml' defined successfully.
Changes will take effect after the domain is fully powered off.