<cpu mode='custom' match='exact'>
  <model fallback='allow'>SandyBridge</model>
  <vendor>Intel</vendor>
  <feature policy='require' name='vme'/>
  <feature policy='require' name='ss'/>
  <feature policy='require' name='pcid'/>
  <feature policy='require' name='osxsave'/>
  <feature policy='require' name='hypervisor'/>
  <feature policy='disable' name='rdtscp'/>
</cpu>
