pseries-console-virtio.xml

<domain type='qemu'>
  <name>guest</name>
  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
  <memory unit='KiB'>524288</memory>
  <vcpu placement='static'>1</vcpu>
  <os>
    <type arch='ppc64' machine='pseries'>hvm</type>
  </os>
  <devices>
    <emulator>/usr/bin/qemu-system-ppc64</emulator>
    <controller type='usb' model='none'/>
    <!-- The <console> element being present should *not* result in a
         matching <serial> element being created -->
    <console type='pty'>
      <target type='virtio'/>
    </console>
    <memballoon model='none'/>
  </devices>
</domain>