Re: [libvirt] [PATCH v2 1/2] XML schema for CPU flags
On 11/05/2009 05:04 PM, Jiri Denemark wrote:
Firstly, CPU topology and model with optional features have to be
advertised in host capabilities:
<host>
<cpu>
<arch>ARCHITECTURE</arch>
<features>
<!-- old-style features are here -->
</features>
<model>NAME</model>
<topology sockets="S" cores="C"
threads="T"/>
<feature name="NAME"/>
</cpu>
...
</host>
Secondly, drivers which support detailed CPU specification have to advertise
it in guest capabilities:
<guest>
...
<features>
<cpuselection/>
</features>
</guest>
And finally, CPU may be configured in domain XML configuration:
<domain>
...
<cpu match="MATCH">
<model>NAME</model>
Note that for qemu/kvm we plan of using the model only. The features
(flags) below will be a function of the model used.
Model is one of core2duo/Nehalem/Merom/...
<topology sockets="S" cores="C"
threads="T"/>
<feature policy="POLICY" name="NAME"/>
</cpu>
</domain>