linux-kernel - Re: i686 quirk for AMD Geode

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Message-ID: <20091117143456.GF15157@caffeine.csclub.uwaterloo.ca>
Date:	Tue, 17 Nov 2009 09:34:56 -0500
From:	lsorense@...lub.uwaterloo.ca (Lennart Sorensen)
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Lennart Sorensen <lsorense@...lub.uwaterloo.ca>,
	Pavel Machek <pavel@....cz>, "H. Peter Anvin" <hpa@...or.com>,
	Matteo Croce <technoboy85@...il.com>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org
Subject: Re: i686 quirk for AMD Geode

On Tue, Nov 17, 2009 at 11:59:29AM +0000, Alan Cox wrote:
> > Trying rdmsr from msr-tools 1.2 gives me:
> > 
> > # ./rdmsr -x 0x00001810
> > rdmsr: CPU 0 cannot read MSR 0x00001810
> > 
> > Hmm, now what?
> 
> Beats me - I thought the region registers were read/write.

Actually it seems I can't read any MSRs on it.

Using the same kernel, same msr module, same rdmsr on a Geode LX system
works fine.  I can read MSRs no problem.  Seems the msr module isn't
working on the Geode SC1200 (and hence possibly the GX1).

-- 
Len Sorensen
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