linux-kernel - Re: [PATCH] x86: fixed mtrr change WP to WB

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Message-ID: <4820ACB5.9060009@zytor.com>
Date:	Tue, 06 May 2008 12:08:37 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Yinghai Lu <yhlu.kernel@...il.com>
CC:	Ingo Molnar <mingo@...e.hu>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: fixed mtrr change WP to WB

Yinghai Lu wrote:
>>>
>>  Then you would have to add a method to pass it into the kernel if you want
>> it to be generally useful.
> 
> but how about old stock kernel in RHEL3U9?
> 

There is nothing you can do about those that will work on any platform. 
  If you have knowledge of the firmware you can of course break those rules.

	-hpa
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