libvirt/tests/cputestdata/x86-host+guest,model486-result.xml
Jiri Denemark f7dd3a4e62 Add support for cpu mode attribute
The mode can be either of "custom" (default), "host-model",
"host-passthrough". The semantics of each mode is described in the
following examples:

- guest CPU is a default model with specified topology:
    <cpu>
      <topology sockets='1' cores='2' threads='1'/>
    </cpu>

- guest CPU matches selected model:
    <cpu mode='custom' match='exact'>
      <model>core2duo</model>
    </cpu>

- guest CPU should be a copy of host CPU as advertised by capabilities
  XML (this is a short cut for manually copying host CPU specification
  from capabilities to domain XML):
    <cpu mode='host-model'/>

  In case a hypervisor does not support the exact host model, libvirt
  automatically falls back to a closest supported CPU model and
  removes/adds features to match host. This behavior can be disabled by
    <cpu mode='host-model'>
      <model fallback='forbid'/>
    </cpu>

- the same as previous returned by virDomainGetXMLDesc with
  VIR_DOMAIN_XML_UPDATE_CPU flag:
    <cpu mode='host-model' match='exact'>
      <model fallback='allow'>Penryn</model>       --+
      <vendor>Intel</vendor>                         |
      <topology sockets='2' cores='4' threads='1'/>  + copied from
      <feature policy='require' name='dca'/>         | capabilities XML
      <feature policy='require' name='xtpr'/>        |
      ...                                          --+
    </cpu>

- guest CPU should be exactly the same as host CPU even in the aspects
  libvirt doesn't model (such domain cannot be migrated unless both
  hosts contain exactly the same CPUs):
    <cpu mode='host-passthrough'/>

- the same as previous returned by virDomainGetXMLDesc with
  VIR_DOMAIN_XML_UPDATE_CPU flag:
    <cpu mode='host-passthrough' match='minimal'>
      <model>Penryn</model>                        --+ copied from caps
      <vendor>Intel</vendor>                         | XML but doesn't
      <topology sockets='2' cores='4' threads='1'/>  | describe all
      <feature policy='require' name='dca'/>         | aspects of the
      <feature policy='require' name='xtpr'/>        | actual guest CPU
      ...                                          --+
    </cpu>
2012-01-17 11:39:23 +01:00

38 lines
1.5 KiB
XML

<cpu mode='custom' match='exact'>
<arch>x86_64</arch>
<model fallback='allow'>486</model>
<feature policy='require' name='svm'/>
<feature policy='require' name='lahf_lm'/>
<feature policy='require' name='3dnowext'/>
<feature policy='require' name='lm'/>
<feature policy='require' name='nx'/>
<feature policy='require' name='syscall'/>
<feature policy='require' name='sse4.1'/>
<feature policy='require' name='dca'/>
<feature policy='require' name='xtpr'/>
<feature policy='require' name='cx16'/>
<feature policy='require' name='ssse3'/>
<feature policy='require' name='monitor'/>
<feature policy='require' name='pni'/>
<feature policy='require' name='pbe'/>
<feature policy='require' name='sse2'/>
<feature policy='require' name='fxsr'/>
<feature policy='require' name='mmx'/>
<feature policy='require' name='clflush'/>
<feature policy='require' name='pse36'/>
<feature policy='require' name='pat'/>
<feature policy='require' name='cmov'/>
<feature policy='require' name='mca'/>
<feature policy='require' name='pge'/>
<feature policy='require' name='mtrr'/>
<feature policy='require' name='sep'/>
<feature policy='require' name='apic'/>
<feature policy='require' name='cx8'/>
<feature policy='require' name='mce'/>
<feature policy='require' name='pae'/>
<feature policy='require' name='msr'/>
<feature policy='require' name='tsc'/>
<feature policy='require' name='de'/>
<feature policy='disable' name='vme'/>
</cpu>