Messages in this thread | | | Date | Tue, 24 Jul 2012 12:10:41 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH 2/2] cpu: intel, amd: mask cleared cpuid features |
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On Tue, Jul 24, 2012 at 12:29:19PM +0400, Vladimir Davydov wrote: > I guess that when the more advanced features become widely-used, > vendors will offer new MSRs and/or CPUID faulting.
And this right there is the dealbreaker:
So what are you doing for cpus which have the advanced CPUID features leafs but there are no MSRs to turn those bits off?
You surely need some software-only solution for the migration to work, no?
If so, why not apply that solution to your hypervisor without touching the kernel at all?
Thanks.
-- Regards/Gruss, Boris.
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