Re: [Xen-devel] Question about vcpu_avail

[Michal Novotny <minovotn@xxxxxxxxxx>]

On 11/24/2009 04:20 PM, Keir Fraser wrote:
> On 24/11/2009 15:08, "Michal Novotny"<minovotn@xxxxxxxxxx>  wrote:
>
>    
> > > Yeah, I think you get it. In your example: if the user specifies maxvcpus=4,
> > > vcpus=2 then xm turns that into vcpus=4, vcpu_avail=3 before sending it to
> > > xend.
> > >
> > >        
> > Right, so, you mean that I should implement it into `xm` command itself
> > and not XenD ? Well, what about people using eg. libvirt with upstream
> > Xen? This way it should not be working since XM is not used... right?
> >      
> If you add new config fields to xend, then libvirt callers are going to need
> to be modified to expose them to users, aren't they (e.g., in a GUI or
> whatever)? If the callers need modifying anyway, then they can just be
> modified in a similar way to what I propose for xm, and deconstruct into the
> config primitives that xend already understands.
>
>   -- Keir
>    
Well, the thing is whether it isn't better to be added to Xend itself 
instead of xm ? This could avoid further modifications. Maybe the 
callers have to be modified a little but I am not sure.
-- Michal

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