From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:57317) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RNM3u-0001VZ-0y for qemu-devel@nongnu.org; Mon, 07 Nov 2011 05:04:22 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RNM3s-0008ED-NF for qemu-devel@nongnu.org; Mon, 07 Nov 2011 05:04:17 -0500 Received: from mailout-de.gmx.net ([213.165.64.23]:52213) by eggs.gnu.org with smtp (Exim 4.71) (envelope-from ) id 1RNM3s-0008E3-96 for qemu-devel@nongnu.org; Mon, 07 Nov 2011 05:04:16 -0500 Date: Mon, 07 Nov 2011 11:04:09 +0100 From: "Thomas Schmitt" References: <4EB790A2.4040806@redhat.com> In-Reply-To: <4EB790A2.4040806@redhat.com> Message-Id: <97429251727271@192.168.2.69> Subject: Re: [Qemu-devel] Do you have a use for a tester of virtio-scsi with CD drives ? List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, stefanha@gmail.com, pbonzini@redhat.com Hi, > > drive file=/dev/sg2,if=virtio -cdrom /dvdbuffer/pseudo_drive > > Actually everything works like a charm now. :)) > Cool. So you might have unveiled some kernel bugs too (host crashes are > never desirable!) The USB drive is back at the test machine. I'm running the planned BD-RE tests on the host system to ensure that they work properly without qemu inbetween. Next i will try with if=virtio. Some questions: ----------------------------------------------------------------------- In a thread on linux-hotplug, /dev/sg* is declared to be deprecated in favor of /dev/bsg/* and /dev/sr*. Will this become a problem ? ----------------------------------------------------------------------- I did not succeed with googling for a way to get a block device running on top of file=/dev/sg*,if=virtio. Is this possible at all ? If so, can you give me instructions ? (It would be the cream cap on the cake.) ----------------------------------------------------------------------- The word "passthrough" does not show up in the context of drive emulation in any documentation inside the git clone. I only see statements about: "passthrough" security model. The word "virtio" is mentioned more often, but without much explanation of -drive use cases and pitfalls. (Only docs/qdev-device-use.txt has some more detailed information.) Is there an external documentation emerging ? I would like to read it and contribute my experiences. ----------------------------------------------------------------------- Have a nice day :) Thomas