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Re: [libvirt] [RFC] exporting KVM host power saving capabilities through libvirt



* Dave Allan <dallan redhat com> [2011-07-08 17:22:53]:

> On Mon, Jul 04, 2011 at 10:05:21PM +0530, Vaidyanathan Srinivasan wrote:
> > * Dave Allan <dallan redhat com> [2011-07-01 16:56:29]:
> > 
> >  
> > > > libvirt has virConnectGetCapabilities() that would export an XML file
> > > > describing the capabilities of the host platform and guest features.
> > > > 
> > > > KVM hypervisor's capability to support S3 can be exported as a host
> > > > feature in the XML as follows:
> > > > 
> > > > <host>
> > > >     <uuid>94a3492f-2635-2491-8c87-8de976fad119</uuid>
> > > >     <cpu>
> > > >       <arch>x86_64</arch>
> > > >       <features>        <<<=== New host feature fields
> > > >         <S3/>
> > > >         <S4/>
> > > >       </features>
> > > 
> > > Just my $.02, but calling it <features> seems to be confusingly close
> > > to the existing <feature> tag.  Maybe <power_management> ?
> > 
> > Yes, I am open to naming the tag power_management.  Any other similar
> > attributes that could be included here in future? Would calling it
> > power_management be very restrictive?
> 
> Urgh, busy week, sorry to be slow responding; I'd expect there will be
> other features you'd want to describe, but they can have their own
> tags.

Sounds good.  Let me add a <power_management> tag within host and
perhaps outside of <cpu> since this is system attribute and not a CPU
attribute.

--Vaidy



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