linux-kernel - Re: [PATCH -mm] 1/2: MMCONFIG: validate against ACPI motherboard resources

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Message-ID: <20070604121250.GA33621@dspnet.fr.eu.org>
Date:	Mon, 4 Jun 2007 14:12:50 +0200
From:	Olivier Galibert <galibert@...ox.com>
To:	Robert Hancock <hancockr@...w.ca>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH -mm] 1/2: MMCONFIG: validate against ACPI motherboard resources

On Tue, May 29, 2007 at 10:03:32PM -0600, Robert Hancock wrote:
> -Validate that the area is reserved even if we read it from the
> chipset directly and not from the MCFG table. This catches the case
> where the BIOS didn't set the location properly in the chipset and
> has mapped it over other things it shouldn't have.

Just for the record, I still fundamentally disagree with that part.
You're not catching what you think you're catching, since the chipset
tells you what it is going to decode as mmconfig, no matter what is
connected to it.

  OG.
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