[libvirt] [PATCH v2] conf: Disallow emulatorpin when numatune's in effect

Daniel P. Berrange berrange at redhat.com
Tue Jan 27 13:37:26 UTC 2015

On Tue, Jan 27, 2015 at 02:25:35PM +0100, Michal Privoznik wrote:
> https://bugzilla.redhat.com/show_bug.cgi?id=1170492
> In one of our previous commits (dc8b7ce7) we've done a functional
> change even though it was intended as pure refactor. The problem is,
> that the following XML:
>   <vcpu placement='static' current='2'>6</vcpu>
>   <cputune>
>     <emulatorpin cpuset='1-3'/>
>   </cputune>
> gets translated into this one:
>   <vcpu placement='auto' current='2'>6</vcpu>
>   <cputune>
>     <emulatorpin cpuset='1-3'/>
>   </cputune>
>   <numatune>
>     <memory mode='strict' placement='auto'/>
>   </numatune>
> We should not change the vcpu placement mode.

In the subject you're talking about disallowing  <emulatorpin> but
here you're talking about not changing vcpu placement, so I'm a
little confused about what this patch is actually changing.

WRT $SUBJECT though, I don't see why <emulatorpin> should be
disallowed when <numatune> is present, as it is valid to pin
guest RAM to NUMA nodes and also set emulator pinnning.

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