From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:60027) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RW3gs-0001FR-DG for qemu-devel@nongnu.org; Thu, 01 Dec 2011 05:16:39 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RW3go-0005cK-4H for qemu-devel@nongnu.org; Thu, 01 Dec 2011 05:16:30 -0500 Received: from mx1.redhat.com ([209.132.183.28]:3809) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RW3gn-0005cB-RV for qemu-devel@nongnu.org; Thu, 01 Dec 2011 05:16:26 -0500 Date: Thu, 1 Dec 2011 12:17:19 +0200 From: "Michael S. Tsirkin" Message-ID: <20111201101718.GA8822@redhat.com> References: <4ED58108.3090903@endace.com> <20111130074903.GD17781@redhat.com> <4ED71582.3000107@endace.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4ED71582.3000107@endace.com> Subject: Re: [Qemu-devel] [BUG] [Seabios] PCI 64bit BARs on Win2008 - unable to start the device. (ACPI lacks the _DSM method) List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alexey Korolev Cc: sfd@endace.com, yamahata@valinux.co.jp, seabios@seabios.org, qemu-devel@nongnu.org On Thu, Dec 01, 2011 at 06:49:54PM +1300, Alexey Korolev wrote: > Isaku san, > > I've just added you to discussion. > There are some issues with PCI 64bit support in Windows. Windows > fails to assign the resource if it doesn't fit in first 4GB window. > > I really don't know why it happens. > One of the possibilities is related to lack of _DSM method in ACPI. > > Another guesse could be related to the fact that 440FX only supports > 32bit PCI bus interface and windows may limit PCI address range to > first 4GB for PCI devices under this bridge. > I remember you were working on Q35 chipset simulation, I wonder if > it is working and would it be possible to try? > > Thanks, > Alexey Maybe the range above 4G needs to be declared in the _CRS resource?