<cpu mode='custom' match='exact'>
  <arch>x86_64</arch>
  <model fallback='allow'>Nehalem</model>
  <feature policy='require' name='svm'/>
  <feature policy='require' name='3dnowext'/>
  <feature policy='require' name='dca'/>
  <feature policy='require' name='xtpr'/>
  <feature policy='require' name='monitor'/>
  <feature policy='require' name='pbe'/>
  <feature policy='disable' name='popcnt'/>
  <feature policy='disable' name='sse4.2'/>
  <feature policy='disable' name='sse'/>
</cpu>
