pcihole64.xml

<domain type='qemu'>
  <name>foo</name>
  <uuid>3c7c30b5-7866-4b05-8a29-efebccba52a0</uuid>
  <memory unit='KiB'>2097152</memory>
  <currentMemory unit='KiB'>2097152</currentMemory>
  <vcpu placement='static' cpuset='0-1'>2</vcpu>
  <os>
    <type arch='x86_64' machine='pc-1.2'>hvm</type>
    <boot dev='hd'/>
  </os>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-system-x86_64</emulator>
    <controller type='pci' index='0' model='pci-root'>
      <pcihole64 unit='KiB'>1048576</pcihole64>
    </controller>
    <controller type='usb' index='0'/>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <memballoon model='virtio'/>
  </devices>
</domain>