Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757615Ab2JQS0R (ORCPT ); Wed, 17 Oct 2012 14:26:17 -0400 Received: from terminus.zytor.com ([198.137.202.10]:35040 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756555Ab2JQS0Q (ORCPT ); Wed, 17 Oct 2012 14:26:16 -0400 Message-ID: <507EF833.8020001@zytor.com> Date: Wed, 17 Oct 2012 11:25:55 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121009 Thunderbird/16.0 MIME-Version: 1.0 To: Jacob Shin CC: Shuah Khan , Thomas Gleixner , Ingo Molnar , "linux-kernel@vger.kernel.org" , "x86@kernel.org" , Yinghai Lu , shuahkhan@gmail.com, andreas.herrmann3@amd.com, borislav.petkov@amd.com Subject: Re: [PATCH 1/1] x86, e820: Remove direct mapping of reserved space for HT hole around 1TB References: <6ec48b96-afab-4c8b-ab74-2c640c2a161b@blur> <8630fe28-0c1c-4f3a-90e1-df2d1b6615a6@blur> <1350409738.2785.30.camel@lorien2> <20121016182621.GA10857@jshin-Toonie> In-Reply-To: <20121016182621.GA10857@jshin-Toonie> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 994 Lines: 30 On 10/16/2012 11:26 AM, Jacob Shin wrote: > > Right, we are (AMD) thinking about the same thing .. how to backport to > stable kernels of major enterprise OSes > > The simplest and the least disruptive solution would be to not map memory > holes that occur above 4GB, it won't affect 32 bit kernels, and it won't > touch legacy (under 4GB) area (ISA, the PCI MMIO region ..): > > https://lkml.org/lkml/2011/10/20/323 > > HPA, it would be great if we can first get this patch upstream, and also > into the stable trees .. and after that, we can work on getting Yinghai's > mm refactoring in .. > Yes, that makes sense at this point. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- 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/