External/libvirt
1
0
Fork 0
mirror of https://gitlab.com/libvirt/libvirt.git synced 2024-12-30 17:45:23 +00:00
Code Issues Packages Projects Releases Wiki Activity
25ec7f6fe9
libvirt/tests/cputestdata/x86_64-baseline-no-vendor-result.xml

4 lines
87 B
XML
Raw Normal View History

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>
2011-08-18 10:14:36 +00:00
<cpu mode='custom' match='exact'>
Removed more AMD-specific features from cpu64-rhel* models We found few more AMD-specific features in cpu64-rhel* models that made it impossible to start qemu guest on Intel host (with this setting) even though qemu itself starts correctly with them. This impacts one test, thus the fix in tests/cputestdata/.
2012-03-09 13:31:47 +00:00
<model fallback='allow'>cpu64-rhel6</model>
tests: Add unit tests for internal CPU APIs
2010-10-07 14:35:17 +00:00
</cpu>
Reference in New Issue Copy Permalink