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List:       linux-kernel
Subject:    Re: [PATCH 1/1] Add force of use MMCONFIG [try #1]
From:       Andi Kleen <ak () suse ! de>
Date:       2006-07-26 15:05:00
Message-ID: p73k6605rvn.fsf () verdi ! suse ! de
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Linus Torvalds <torvalds@osdl.org> writes:

> On Mon, 24 Jul 2006, Andrew Morton wrote:
> > 
> > Why do we want to do this?  Are the ACPI-provided tables incorrect?  If so,
> > what problems are caused by this?
> 
> The ACPI-provided tables are apparently correct, but we sanity-check them 
> by _also_ requiring that the mmconfig base address is marked "reserved" in 
> the e820 tables.
> 
> The EFI memory maps apparently don't do that "reserved" marking.

We were planning to remove that heuristic anyways because it produced
far too many false positivies. In fact I think Greg has already 
done it. Then that patch should be obsolete.

-Andi
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