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author | Jiri Denemark <jdenemar@redhat.com> | 2011-08-18 12:14:36 +0200 |
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committer | Jiri Denemark <jdenemar@redhat.com> | 2012-01-17 11:39:23 +0100 |
commit | f7dd3a4e62354b5ef98fab6f77bfaa124903a775 (patch) | |
tree | 67d35a69bfa581e2ec1ae18f5f6a5786a75b0a44 /tests/cputestdata/x86-host-better+pentium3,pentium3-result.xml | |
parent | cpu: Optionally forbid fallback CPU models (diff) | |
download | libvirt-f7dd3a4e62354b5ef98fab6f77bfaa124903a775.tar.gz libvirt-f7dd3a4e62354b5ef98fab6f77bfaa124903a775.tar.bz2 libvirt-f7dd3a4e62354b5ef98fab6f77bfaa124903a775.zip |
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>
Diffstat (limited to 'tests/cputestdata/x86-host-better+pentium3,pentium3-result.xml')
-rw-r--r-- | tests/cputestdata/x86-host-better+pentium3,pentium3-result.xml | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/cputestdata/x86-host-better+pentium3,pentium3-result.xml b/tests/cputestdata/x86-host-better+pentium3,pentium3-result.xml index 1530a07e0..1e4f48861 100644 --- a/tests/cputestdata/x86-host-better+pentium3,pentium3-result.xml +++ b/tests/cputestdata/x86-host-better+pentium3,pentium3-result.xml @@ -1,4 +1,4 @@ -<cpu match='exact'> +<cpu mode='custom' match='exact'> <arch>x86_64</arch> <model fallback='allow'>pentium3</model> <feature policy='require' name='lahf_lm'/> |