linux-kernel - Re: Disabling x86 System Management Mode

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Message-ID: <f4050c9e0704180706m513dd780v79f30f0029fe74de@mail.gmail.com>
Date:	Wed, 18 Apr 2007 08:06:18 -0600
From:	"Andrew Shewmaker" <agshew@...il.com>
To:	"John Sigler" <linux.kernel@...e.fr>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Disabling x86 System Management Mode

On 4/18/07, John Sigler <linux.kernel@...e.fr> wrote:
> Andi Kleen wrote:
>
> > There are usually chipset specific bits that can be set to disable
> > SMMs. See the datasheet if you can get them. Unfortunately most
> > chipset vendors don't give out data sheets easily.
>
> I managed to find the south bridge data sheet.
>
> http://linux.kernel.free.fr/VT82C686B.pdf
>
> (I'm still looking for the north bridge data sheet.)
>
> Could someone point me in the right direction?

The LinuxBIOS folks had a thread on SMM recently.  You don't have to
worry about SMM if you can use their stuff.

http://www.linuxbios.org/pipermail/linuxbios/2006-December/017861.html

same thread, but continued

http://www.linuxbios.org/pipermail/linuxbios/2007-January/017905.html

-- 
Andrew Shewmaker
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