From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=53627 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Olky7-0004fQ-Cd for qemu-devel@nongnu.org; Wed, 18 Aug 2010 11:54:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1Olky3-000874-Tb for qemu-devel@nongnu.org; Wed, 18 Aug 2010 11:54:20 -0400 Received: from mail.codesourcery.com ([38.113.113.100]:34704) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Olky3-00086o-Hz for qemu-devel@nongnu.org; Wed, 18 Aug 2010 11:54:19 -0400 From: Paul Brook Subject: Re: [Qemu-devel] [PATCH - V3] Port codes from qemu-kvm to support booting from SCSI disk image Date: Wed, 18 Aug 2010 16:54:15 +0100 References: <201008181608.55759.paul@codesourcery.com> <632E0D52-7618-4184-990D-2918E51A61BC@suse.de> In-Reply-To: <632E0D52-7618-4184-990D-2918E51A61BC@suse.de> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201008181654.16070.paul@codesourcery.com> List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alexander Graf Cc: qemu-devel@nongnu.org, Hai Shan Bai > > This has been discussed several times before. The proper solution is to > > teach the bios how to boot off SCSI devices. IIRC support for virtio > > devices already exists, implementing support for the SCSI controller > > shouldn't be that much harder. > > Couldn't we just have an option rom for the SCSI controller? The same way > the VGABIOS is a rewrite of a VGA BIOS for the Cirrus Logic... Right, that may be the best way of implementing it. IIRC there are some complications because of the ways the different BIOS interfaces interact, but I expect these are fixable. Paul