From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754877Ab0ISRI3 (ORCPT ); Sun, 19 Sep 2010 13:08:29 -0400 Received: from mx1.redhat.com ([209.132.183.28]:49946 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753358Ab0ISRI2 (ORCPT ); Sun, 19 Sep 2010 13:08:28 -0400 Message-ID: <4C964382.9000602@redhat.com> Date: Sun, 19 Sep 2010 19:08:18 +0200 From: Avi Kivity User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100907 Fedora/3.1.3-1.fc13 Lightning/1.0b3pre Thunderbird/3.1.3 MIME-Version: 1.0 To: Cam Macdonell CC: Chris Wright , "qemu-devel@nongnu.org Developers" , linux-kernel Subject: Re: [Qemu-devel] Re: ACPI error when mapping a 2GB BAR w/ 4GB of RAM References: <20100917200428.GD19949@x200.localdomain> <20100917211508.GF19949@x200.localdomain> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/17/2010 11:45 PM, Cam Macdonell wrote: > > It seems most likely...< 2GB also means<= 1GB (which would fit in > > the hole). Although, I have to admit, I'm not sure how seabios handles > > the hole nowadays. > > > > What about 2GB with 32bit BAR? > > The bios seems to ignore it and the guest can't map it as it cannot > find an alignment for it. Seems strange since with 1GB of RAM and 2GB > BAR, everything should map below 4GB. > There are only two possible locations, 0-2GB and 2-4GB. The first clashes with RAM, the second clashes with the bios and fixed-function devices. -- error compiling committee.c: too many arguments to function