linux-kernel - Re: [PATCH] X86: don't print a warning when MTRR are blank and running in KVM

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Message-ID: <20080222100044.GA6807@elte.hu>
Date:	Fri, 22 Feb 2008 11:00:44 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Joerg Roedel <joerg.roedel@....com>, tglx@...utronix.de,
	mingo@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] X86: don't print a warning when MTRR are blank and
	running in KVM


* H. Peter Anvin <hpa@...or.com> wrote:

> Ingo Molnar wrote:
>> * H. Peter Anvin <hpa@...or.com> wrote:
>>
>>>> I'm not sure how we could detect pure Qemu instances - perhaps it should 
>>>> define some special MSR or something?
>>> Perhaps they should fix the Qemu BIOS to actually simulate working MSRs; 
>>> if nothing else, they should set up the default MTRR to be cachable.
>>
>> btw., should KVM do the same?
>
> Yes.  Especially since they share a BIOS.

ok. Then i guess we should just leave the warning and the backtrace in 
place until they get a fix done?

	Ingo
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