libvirt/src/cpu_map/x86_pentiumpro.xml

<cpus>
  <model name='pentiumpro'>
    <decode host='on' guest='on'/>
    <feature name='apic'/>
    <feature name='cmov'/>
    <feature name='cx8'/>
    <feature name='de'/>
    <feature name='fpu'/>
    <feature name='fxsr'/>
    <feature name='mce'/>
    <feature name='mmx'/>
    <feature name='msr'/>
    <feature name='pae'/>
    <feature name='pat'/>
    <feature name='pge'/>
    <feature name='pse'/>
    <feature name='sep'/>
    <feature name='sse'/>
    <feature name='sse2'/>
    <feature name='tsc'/>
  </model>
</cpus>