Re: [PATCH 1/1] Add force of use MMCONFIG [try #1]

From: Andi Kleen
Date: Wed Jul 26 2006 - 11:03:12 EST

Linus Torvalds <torvalds@xxxxxxxx> 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.

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