linux-kernel - Re: [PATCH 4/5] x86_64: check msr to get mmconfig for amd family 10h opteron v3

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Message-ID: <86802c440802181959t762bc242n79d2f0d93b224f31@mail.gmail.com>
Date:	Mon, 18 Feb 2008 19:59:48 -0800
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Ingo Molnar" <mingo@...e.hu>,
	"Thomas Gleixner" <tglx@...utronix.de>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Greg KH" <greg@...ah.com>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/5] x86_64: check msr to get mmconfig for amd family 10h opteron v3

On Feb 15, 2008 1:31 AM, Yinghai Lu <Yinghai.Lu@....com> wrote:
> From: Yinghai Lu <Yinghai.Lu@....COM>
>
> so even booting kernel with acpi=off or even MCFG is not there, we still can
> use MMCONFIG.
>
> Signed-off-by: Yinghai Lu <yinghai.lu@....com>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Ingo Molnar <mingo@...e.hu>
> Cc: Andi Kleen <ak@...e.de>
> Cc: Greg KH <greg@...ah.com>
> Cc: "H. Peter Anvin" <hpa@...or.com>
> Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
> ---
>
>  arch/x86/pci/mmconfig-shared.c |   67 ++++++++++++++++++++++++++++---
>  1 file changed, 61 insertions(+), 6 deletions(-)
>
> Index: linux-2.6/arch/x86/pci/mmconfig-shared.c
> ===================================================================
> --- linux-2.6.orig/arch/x86/pci/mmconfig-shared.c
> +++ linux-2.6/arch/x86/pci/mmconfig-shared.c

Ingo/Thomas,

It seems you missed this one in the 5.

this one should be safe. it only reads msr.

Andi had concern with other one that was touching msr. I will keep
that one in my local tree.

YH
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