From: Andi Kleen <andi@firstfloor.org>
To: Andre Przywara <andre.przywara@amd.com>
Cc: Andi Kleen <andi@firstfloor.org>, Jiri Kosina <jkosina@suse.cz>,
Ingo Molnar <mingo@elte.hu>, Avi Kivity <avi@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
Joerg Roedel <joerg.roedel@amd.com>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Subject: Re: KVM warning about uncertified CPU for SMP for AMD model 2, stepping 3
Date: Wed, 31 Mar 2010 14:51:35 +0200 [thread overview]
Message-ID: <20100331125135.GW20695@one.firstfloor.org> (raw)
In-Reply-To: <4BB33C0D.9090808@amd.com>
> >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.
-Andi
next prev parent reply other threads:[~2010-03-31 12:51 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-30 23:03 KVM warning about uncertified CPU for SMP for AMD model 2, stepping 3 Jiri Kosina
2010-03-30 23:25 ` KVM warning about uncertified CPU for SMP for AMD model 2, stepping3 Brian Jackson
2010-03-31 2:42 ` KVM warning about uncertified CPU for SMP for AMD model 2, stepping 3 Andi Kleen
2010-03-31 8:15 ` [PATCH][RFC] x86: remove SMP check/taint for AMD K7 (was Re: KVM warning about uncertified CPU for SMP for AMD model 2, stepping 3) Jiri Kosina
2010-03-31 12:53 ` Andi Kleen
2010-03-31 12:11 ` KVM warning about uncertified CPU for SMP for AMD model 2, stepping 3 Andre Przywara
2010-03-31 12:51 ` Andi Kleen [this message]
2010-03-31 14:36 ` Pavel Machek
2010-04-25 4:22 ` Yuhong Bao
2010-03-31 13:45 ` Jiri Kosina
2010-03-31 14:39 ` Andre Przywara
2010-03-31 14:45 ` Jiri Kosina
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