linux-kernel - Re: [PATCH] X86: fix typo PAT to X86

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Message-ID: <20080118210344.GC10717@elte.hu>
Date:	Fri, 18 Jan 2008 22:03:44 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>
Cc:	Dave Jones <davej@...hat.com>, Yinghai Lu <Yinghai.Lu@....COM>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] X86: fix typo PAT to X86_PAT


* Pallipadi, Venkatesh <venkatesh.pallipadi@...el.com> wrote:

> Ingo, can you remove this PAT MTRR exclusion.

yeah, already did that.

> Actually, this exclusion will not work at all with the current code. 
> Infact it should be PAT selects MTRR, for the current code. As 
> pat_init() is called during mtrr init as the rules for how to change 
> PAT and how to change MTRR are same. Further, MTRR is always required 
> on SMP, as we read the MTRR setting from boot CPU and set it on Aps at 
> boot time. We should only remove the /proc/mtrr write permissions with 
> CONFIG_PAT. We need to deprecate it for a while before that...

ok.

	Ingo
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