Re: KVM warning about uncertified CPU for SMP for AMD model 2,stepping 3

From: Pavel Machek
Date: Wed Mar 31 2010 - 10:36:58 EST


On Wed 2010-03-31 14:51:35, Andi Kleen wrote:
> > >I guess these warnings could be just disabled. With nearly everyone
> > >using multi-core these days they are kind of obsolete anyways.
> > Well, the warning refers to an old single-core only CPU model. Most of
> > those were able to run in SMP boards, but only a subset of them was
> > officially certified to do so (Athlon-MP instead of Athlon-XP).
>
> Thanks for pointing out the obvious.
>
> > To avoid complaints about instability of such systems, the warning was
> > introduced. If you consider these systems still supported, I wouldn't
> > disable this warning, at least the check should be disabled only if the
> > hypervisor CPUID bit is set.
>
> The point was that everyone can have a multi-core system for cheap
> these days, no real motivation for anyone anymore to use old unsupported
> configurations to get one.

It still seems better to fix kvm to emulate smp-capable cpu...

--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/