Re: [Xen-devel] [PATCH 2/2] hvm: allow pass-through of new CPUID features

[Andre Przywara <andre.przywara@xxxxxxx>]

Ian Jackson wrote:
> Andre Przywara writes ("[Xen-devel] [PATCH 2/2] hvm: allow pass-through of new CPUID 
> features"):
> > there are some new CPUID features that are safe for guests to see, as 
> > they don't require OS awareness (FPU/ALU related instructions only). 
> > Among features for new AMD CPUs there is also the PCLMULQDQ bit, which 
> > Intel CPU have already for quite a while.
> This would seem to be a new feature.
I agree to some point, although (at least in respect to PCLMULQDQ) I'd 
consider this more as "forgotten enablement".
> We are currently in feature freeze.
> Can you make a justification for a freeze exception ?
If you can make me believe that it does not take another year until this 
shows up in an official release, then I am totally fine with skipping 4.1.0.
What is the policy regarding the 4.1.x releases? Have features like 
those a chance of being applied?
Regards,
Andre.

--
Andre Przywara
AMD-Operating System Research Center (OSRC), Dresden, Germany


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel