Re: Re: Xen: Hybrid extension patchset for hypervisor

[Frank van der Linden <Frank.Vanderlinden@Sun.COM>]

Keir Fraser wrote:
> On 16/09/2009 09:44, "Yang, Sheng" <sheng.yang@intel.com> wrote:
>
>   
>> Hi Keir & Jeremy
>>
>> Here is the hypervisor part of hybrid extension support.
>>
>> Please review, thanks!
>>     
>
> The principle is okay I guess. These changes would have to be trickled in
> with a  really good explanation and justification for each one. For example,
> I'm not clear why the enable-hybrid hypercall is needed. Why not just
> provide access to evtchn and timer hypercalls always, and guest sues them if
> it is capable of it? I'm also not sure why PV timer events get routed to
> irq0 -- why not via an event channel as usual, now that you are enabling HVM
> guests to use the evtchn subsystem? What's a hybrid gnttab, and why does it
> need an explciit reserved e820 region? And so on.
>
> The general principle of these patches seems to be to create a set of
> individual, and perhaps largely independent, accelerations/enlightenments to
> the HVM interface. I can at least agree with and support that aim.
>
>  -- Keir
>   

I did not see the hypervisor part of these patches appear in my 
xen-devel inbox. Is this a problem on my end, or were they not sent to 
the list? If so, I'm interested in them, so it'd be great if they could 
be sent to the list.

Thanks,

- Frank