Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758068AbZDPRa2 (ORCPT ); Thu, 16 Apr 2009 13:30:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755889AbZDPRaR (ORCPT ); Thu, 16 Apr 2009 13:30:17 -0400 Received: from terminus.zytor.com ([198.137.202.10]:33806 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754950AbZDPRaQ (ORCPT ); Thu, 16 Apr 2009 13:30:16 -0400 Message-ID: <49E76A92.7040203@zytor.com> Date: Thu, 16 Apr 2009 10:27:46 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: Yinghai Lu CC: Ingo Molnar , Linus Torvalds , Jesse Barnes , Andrew Morton , Thomas Gleixner , "linux-kernel@vger.kernel.org" , linux-pci@vger.kernel.org, yannick.roehlly@free.fr Subject: Re: [PATCH] x86/pci: make pci_mem_start to be aligned only -v3 References: <200904101913.n3AJDhMm018684@demeter.kernel.org> <49DFABCC.3070001@kernel.org> <49E00E9F.8030605@kernel.org> <49E4F6D6.6030709@kernel.org> <49E4F71F.10107@kernel.org> <49E52A7A.4070607@kernel.org> <49E52D3F.1090206@kernel.org> <20090416093152.6605612d@hobbes> <20090416165640.GA13927@elte.hu> <49E76864.9060309@kernel.org> In-Reply-To: <49E76864.9060309@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 828 Lines: 22 Yinghai Lu wrote: > > that need to do done much earlier, and much simple, just need to make that range to be reserved in e820. > and later e820_setup_gap even don't need to be aligned again. > As long as that doesn't cause the PCI layer to move devices already assigned in this range out of it. What we want is really a "weak reserve". On the other hand, that may very well be the semantics of the existing reserved space, too (I honestly haven't looked lately.) -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/