From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755363Ab0DISZt (ORCPT ); Fri, 9 Apr 2010 14:25:49 -0400 Received: from terminus.zytor.com ([198.137.202.10]:57951 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752887Ab0DISZq (ORCPT ); Fri, 9 Apr 2010 14:25:46 -0400 Message-ID: <4BBF70BC.3080809@zytor.com> Date: Fri, 09 Apr 2010 11:23:56 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100330 Fedora/3.0.4-1.fc12 Thunderbird/3.0.4 MIME-Version: 1.0 To: Yinghai , Guenter Roeck CC: Linus Torvalds , Bjorn Helgaas , Thomas Gleixner , Ingo Molnar , linux-pci@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org, Andy Isaacson , Thomas Renninger Subject: Re: [PATCH] x86: Reserve legacy VGA MMIO area for x86_64 as well as x86_32 References: <20100407210628.28364.96982.stgit@bob.kio> <201004071705.07176.bjorn.helgaas@hp.com> <4BBD13C3.2060404@oracle.com> <201004091004.39857.bjorn.helgaas@hp.com> <4BBF5987.3010100@zytor.com> <4BBF626A.3060800@oracle.com> In-Reply-To: <4BBF626A.3060800@oracle.com> 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 [Adding Guenter Roeck as he was commenting on something writing to the VGA area...] On 04/09/2010 10:22 AM, Yinghai wrote: > > then please check this one > > update e820 at first, and later put them resource tree, but give pci BAR chance to claim > the range, before assign unassigned resources. > > in case some system doesn't have VGA, and use [0xa0000, ..] for mmio of some other pci devices. > Do we have any evidence of any such system? Either which way, the patch looks saner... -hpa