Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755237Ab0DIWpt (ORCPT ); Fri, 9 Apr 2010 18:45:49 -0400 Received: from terminus.zytor.com ([198.137.202.10]:56851 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751685Ab0DIWpp (ORCPT ); Fri, 9 Apr 2010 18:45:45 -0400 Message-ID: <4BBFADDB.6000508@zytor.com> Date: Fri, 09 Apr 2010 15:44:43 -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: Andy Isaacson CC: Yinghai Lu , guenter.roeck@ericsson.com, Linus Torvalds , Bjorn Helgaas , Thomas Gleixner , Ingo Molnar , "linux-pci@vger.kernel.org" , "x86@kernel.org" , "linux-kernel@vger.kernel.org" , Thomas Renninger Subject: Re: [PATCH] x86: Reserve legacy VGA MMIO area for x86_64 as well as x86_32 References: <201004071705.07176.bjorn.helgaas@hp.com> <4BBD13C3.2060404@oracle.com> <201004091004.39857.bjorn.helgaas@hp.com> <4BBF5987.3010100@zytor.com> <4BBF626A.3060800@oracle.com> <4BBF70BC.3080809@zytor.com> <1270839357.1477.758.camel@groeck-laptop> <4BBF863B.1060806@oracle.com> <20100409222103.GA11130@hexapodia.org> <4BBFA9BF.60608@oracle.com> <20100409223532.GC11130@hexapodia.org> In-Reply-To: <20100409223532.GC11130@hexapodia.org> 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: 838 Lines: 19 On 04/09/2010 03:35 PM, Andy Isaacson wrote: > [ 2.267740] pci 0000:00:1f.2: BAR 5: assigned [mem 0x000a0000-0x000a07ff] > [ 2.274701] pci 0000:00:1f.2: BAR 5: set to [mem 0x000a0000-0x000a07ff] (PCI address [0xa0000-0xa07ff] Looks like this is something the kernel is assigning to it. It *does* get marked reserved: > [ 0.000000] #6 [000009ec00 - 00000f0000] BIOS reserved ... but that doesn't seem to keep the PCI code from assigning anything there. This is a Very Bad thing in general... if we're assigning devices to areas marked reserved, we have a huge problem. -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/