libvirt/tests/cputestdata/x86_64-cpuid-Atom-N450-guest.xml

<cpu mode='custom' match='exact'>
  <model fallback='forbid'>n270</model>
  <vendor>Intel</vendor>
  <feature policy='require' name='ds'/>
  <feature policy='require' name='acpi'/>
  <feature policy='require' name='ss'/>
  <feature policy='require' name='ht'/>
  <feature policy='require' name='tm'/>
  <feature policy='require' name='pbe'/>
  <feature policy='require' name='dtes64'/>
  <feature policy='require' name='ds_cpl'/>
  <feature policy='require' name='est'/>
  <feature policy='require' name='tm2'/>
  <feature policy='require' name='cx16'/>
  <feature policy='require' name='xtpr'/>
  <feature policy='require' name='pdcm'/>
  <feature policy='require' name='movbe'/>
  <feature policy='require' name='syscall'/>
  <feature policy='require' name='lm'/>
  <feature policy='require' name='lahf_lm'/>
</cpu>