linux-kernel - Re: [PATCH] x86_64: set cfg_size for AMD Family 10h in case MMCONFIG

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Date:	Fri, 14 Sep 2007 11:09:23 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Andreas Herrmann" <aherrman@...or.de>
Cc:	"H. Peter Anvin" <hpa@...or.com>, "Andi Kleen" <ak@...e.de>,
	linux-kernel@...r.kernel.org, "dean gaudet" <dean@...tic.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Greg KH" <greg@...ah.com>, "Jeff Garzik" <jeff@...zik.org>
Subject: Re: [PATCH] x86_64: set cfg_size for AMD Family 10h in case MMCONFIG

On 9/14/07, Andreas Herrmann <aherrman@...or.de> wrote:
> It seems that a workaround went into the kernel
> (commit  3320ad994afb2c44ad34b3b34c3c5cf0da297331)
> for a feature that is not yet switched on by the OS.
>
> Because Yinghai's patch is rejected. Or did I miss something?
> Did Andi rejected just the third patch and not the first two? Hm, ...
>
> (And obviously Dean Gaudet must have had a system where MSR 0xc0010058
> was accordingly configured  - by the BIOS or himself?)
>

the three patches are independent...

[PATCH] x86_64: check MSR to get MMCONFIG for AMD Family 10h Opteron
http://lkml.org/lkml/2007/9/12/247
[PATCH] x86_64: check and enable MMCONFIG for AMD Family 10h Opteron
http://lkml.org/lkml/2007/9/12/248
[PATCH] x86_64: set cfg_size for AMD Family 10h in case MMCONFIG is used
http://lkml.org/lkml/2007/9/12/352

the first two is doing as the way as hpa think that we should do.
the third one: ak doesn't like it, but greg said it is needed for
broken MCFG....

and andrew already put them into -mm.

one side fact is, I could use mmconfig when acpi=off too.

YH
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