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Re: [Xen-devel] [PATCH 3 of 7] xen: allows more hypercalls from stubdoms



On 13/10/2009 13:00, "Stefano Stabellini" <Stefano.Stabellini@xxxxxxxxxxxxx>
wrote:

>> This kind of thing, for example, while we're talking about least
>> privilege... I think it's wrong-headed in the first place for this kind of
>> control-plane activity to be going on in qemu. Surely it belongs in the
>> toolstack? Yes, I know it's a pain in the bum that this means modifying
>> multiple toolstacks! :-)
>> 
> 
> I agree with you that we need to redesign these hypercalls, but I am a
> fan of "doing one thing at a time" so I think we should decouple this
> goal from the other one of making passthrough work with stubdom for the
> moment.
> This way we could first let people test it as it is, fix some bugs that
> probably still affect the code, fix pci coldplug and add MSI-X support,
> then redesign the hypercalls.

Perhaps acceptable then if the changes are placed in clear ifdef'ed regions.
This ifdef would be default-disabled for a stable release, if the hypercalls
are not redone by then.

 -- Keir



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