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

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Message-ID: <Pine.LNX.4.64.0607242226200.29649@g5.osdl.org>
Date:	Mon, 24 Jul 2006 22:27:15 -0700 (PDT)
From:	Linus Torvalds <torvalds@...l.org>
To:	Andrew Morton <akpm@...l.org>
cc:	Edgar Hucek <hostmaster@...soft.at>, ebiederm@...ssion.com,
	hpa@...or.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] Add force of use MMCONFIG [try #1]



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.

		Linus
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