Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754490Ab2H0UQd (ORCPT ); Mon, 27 Aug 2012 16:16:33 -0400 Received: from terminus.zytor.com ([198.137.202.10]:35847 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754466Ab2H0UQc (ORCPT ); Mon, 27 Aug 2012 16:16:32 -0400 Message-ID: <503BD597.3070400@zytor.com> Date: Mon, 27 Aug 2012 13:16:23 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120605 Thunderbird/13.0 MIME-Version: 1.0 To: Jacob Shin CC: Yinghai Lu , X86-ML , LKML , Tejun Heo , Dave Young , Chao Wang , Vivek Goyal , Andreas Herrmann , Borislav Petkov Subject: Re: [PATCH 3/5] x86: Only direct map addresses that are marked as E820_RAM References: <1345852516-3125-1-git-send-email-jacob.shin@amd.com> <1345852516-3125-4-git-send-email-jacob.shin@amd.com> <20120825042409.GD26127@jshin-Toonie> <20120827184912.GA23135@jshin-Toonie> In-Reply-To: <20120827184912.GA23135@jshin-Toonie> X-Enigmail-Version: 1.4.3 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 564 Lines: 18 On 08/27/2012 11:49 AM, Jacob Shin wrote: > > Yinghai, another question, what about hotplug? Are we guaranteed that > we will always be adding memory above max_pfn_mapped? I don't think we can rely on this... > And hotplug will also update e820 to mark the range as E820_RAM as well? This is really should. -hpa -- 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/