libvirt/tests/qemuxml2argvdata/pages-discard.xml

<domain type='qemu'>
  <name>QEMUGuest1</name>
  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
  <memory unit='KiB'>4194304</memory>
  <currentMemory unit='KiB'>4194304</currentMemory>
  <memoryBacking>
    <discard/>
  </memoryBacking>
  <vcpu placement='static'>4</vcpu>
  <os>
    <type arch='x86_64' machine='pc'>hvm</type>
    <boot dev='hd'/>
  </os>
  <cpu mode='custom' match='exact' check='none'>
    <model fallback='forbid'>qemu64</model>
    <numa>
      <cell id='0' cpus='0' memory='1048576' unit='KiB'/>
      <cell id='1' cpus='1' memory='1048576' unit='KiB' discard='no'/>
      <cell id='2' cpus='2' memory='1048576' unit='KiB'/>
      <cell id='3' cpus='3' memory='1048576' unit='KiB'/>
    </numa>
  </cpu>
  <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='usb' index='0' model='piix3-uhci'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'/>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <audio id='1' type='none'/>
    <memballoon model='none'/>
  </devices>
</domain>