Re: [Xen-devel] HYBRID: PV in HVM container

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Tue, 28 Jun 2011, Keir Fraser wrote:
> On 28/06/2011 02:51, "Mukesh Rathor" <mukesh.rathor@xxxxxxxxxx> wrote:
> 
> >> To be clear, you intend for this to work with unmodified PV guests,
> >> right? All of this translation can easily be done in Xen, avoiding
> >> multiple paths needed in the guest kernel (not really tenable for
> >> upstreaming).
> >> 
> >>  -- Keir
> > 
> > Hi Keir,
> > 
> > Actually, I modified the PVops guest.  The changes in the pvops are
> > minimal and mostly confied to xen specific files. So I think it has
> > a fair shot of being upstreamed, at least, worth a shot. I will run
> > them by Jeremy/Konrad and get their opinions.
> 
> Well, maybe. But we now have HVM guests, PV guests, and PV-HVM guests. I'm
> not sure that adding explicitly HVM-PV guests as well isn't just a bloody
> mess.

I very much agree on this point.

However it could still be useful at the very least to run a 64-bit hvm
dom0 (assuming there is a significant performance improvement in doing
so, compared to a traditional 64-bit dom0).

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