linux-kernel - Re: [PATCH] x86, pat: Add comments to cachemode translation tables

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Message-Id: <55B126070200007800094BD5@prv-mh.provo.novell.com>
Date:	Thu, 23 Jul 2015 09:36:07 -0600
From:	"Jan Beulich" <JBeulich@...e.com>
To:	"Toshi Kani" <toshi.kani@...com>
Cc:	<peterz@...radead.org>, <mingo@...nel.org>, <x86@...nel.org>,
	<tglx@...utronix.de>, <bp@...e.de>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86, pat: Add comments to cachemode translation
 tables

>>> On 23.07.15 at 17:25, <toshi.kani@...com> wrote:
> Yes, I agree with you.  But such risk is very low -- 1) the regular case
> (no fallback) is used most of the cases, 2) the code using WT knows what
> type of memory it is dealing with.  For example, pmem may map NVDIMM with
> WT, and any sane BIOS sets MTRR to WB for NVDIMM. 

Do the words "sane" and "BIOS" really fit together in your opinion?

Jan

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