Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753524AbbGWPgQ (ORCPT ); Thu, 23 Jul 2015 11:36:16 -0400 Received: from prv-mh.provo.novell.com ([137.65.248.74]:38380 "EHLO prv-mh.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751025AbbGWPgI convert rfc822-to-8bit (ORCPT ); Thu, 23 Jul 2015 11:36:08 -0400 Message-Id: <55B126070200007800094BD5@prv-mh.provo.novell.com> X-Mailer: Novell GroupWise Internet Agent 14.0.1 Date: Thu, 23 Jul 2015 09:36:07 -0600 From: "Jan Beulich" To: "Toshi Kani" Cc: , , , , , Subject: Re: [PATCH] x86, pat: Add comments to cachemode translation tables References: <1437588371-28223-1-git-send-email-toshi.kani@hp.com> <55B0A9110200007800094558@prv-mh.provo.novell.com> <1437661620.3214.281.camel@hp.com> <55B11B4D0200007800094AE9@prv-mh.provo.novell.com> <1437665107.3214.310.camel@hp.com> In-Reply-To: <1437665107.3214.310.camel@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8BIT Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 652 Lines: 15 >>> On 23.07.15 at 17:25, 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/