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

[Keir Fraser <keir.xen@xxxxxxxxx>]

On 28/06/2011 19:32, "Mukesh Rathor" <mukesh.rathor@xxxxxxxxxx> wrote:

>> 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.
> 
> Could we perhaps define a HYBRID type that will have characteristics
> like, this runs in HVM container, it doesn't use EPT, it uses HVM
> callback, etc.. We can they modify it without defining any new types in
> future, say we find it works better with EPT under certain
> circumstances etc..  What do you think?

Yes, I don't mind the idea of some HVM extensions for performance, and that
will probably become increasingly important. I just think we should support
unmodified PV as a baseline, with best performance possible (i.e., the basic
HVM container approach should support it).

 -- Keir



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