linux-kernel - Re: [PATCH] x86/pci: don't check mmconf again if it is from MSR with amd faml0h

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Date:	Wed, 16 Dec 2009 14:18:10 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
CC:	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Robert Hancock <hancockrwd@...il.com>,
	Tvrtko Ursulin <tvrtko@...ulin.net>,
	Tvrtko Ursulin <tvrtko.ursulin@...hos.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86/pci: don't check mmconf again if it is from MSR with
 amd faml0h

Jesse Barnes wrote:
> On Mon, 14 Dec 2009 18:47:25 -0800
> Yinghai Lu <yinghai@...nel.org> wrote:
> 
>> for AMD Fam10h, it we read mmconf from MSR early, we should just
>> trust it because we check it and correct it already.
>>
>> so skip the reject check there.
>>
>> Signed-off-by: Yinghai Lu <yinghai@...nel.org>
>>
> 
> Why is mmconfig getting rejected on this platform?  Seems like that
> should be fixed instead, rather than adding a whitelist of one.
> 

in the previous cleanup, i happen to move the checking to check hostbridge code too.

but don't want to remove the checking for all, and this patch only remove the checking for amd 10h.

YH
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