libvirt/tests/cputestdata/x86_64-cpuid-Ryzen-9-3900X-12-Core-guest.xml

<cpu mode='custom' match='exact'>
  <model fallback='forbid'>EPYC-IBPB</model>
  <vendor>AMD</vendor>
  <feature policy='require' name='ht'/>
  <feature policy='require' name='osxsave'/>
  <feature policy='require' name='cmt'/>
  <feature policy='require' name='clwb'/>
  <feature policy='require' name='umip'/>
  <feature policy='require' name='rdpid'/>
  <feature policy='require' name='xsaves'/>
  <feature policy='require' name='mbm_total'/>
  <feature policy='require' name='mbm_local'/>
  <feature policy='require' name='cmp_legacy'/>
  <feature policy='require' name='extapic'/>
  <feature policy='require' name='ibs'/>
  <feature policy='require' name='skinit'/>
  <feature policy='require' name='wdt'/>
  <feature policy='require' name='tce'/>
  <feature policy='require' name='topoext'/>
  <feature policy='require' name='perfctr_core'/>
  <feature policy='require' name='perfctr_nb'/>
  <feature policy='require' name='invtsc'/>
  <feature policy='require' name='clzero'/>
  <feature policy='require' name='xsaveerptr'/>
  <feature policy='require' name='wbnoinvd'/>
  <feature policy='require' name='amd-stibp'/>
  <feature policy='require' name='amd-ssbd'/>
  <feature policy='require' name='npt'/>
  <feature policy='require' name='lbrv'/>
  <feature policy='require' name='svm-lock'/>
  <feature policy='require' name='nrip-save'/>
  <feature policy='require' name='tsc-scale'/>
  <feature policy='require' name='vmcb-clean'/>
  <feature policy='require' name='flushbyasid'/>
  <feature policy='require' name='decodeassists'/>
  <feature policy='require' name='pause-filter'/>
  <feature policy='require' name='pfthreshold'/>
  <feature policy='require' name='rdctl-no'/>
  <feature policy='require' name='skip-l1dfl-vmentry'/>
  <feature policy='require' name='mds-no'/>
  <feature policy='require' name='pschange-mc-no'/>
</cpu>