From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from [140.186.70.92] (port=50209 helo=eggs.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1Q7BPZ-0007K3-2u
	for qemu-devel@nongnu.org; Tue, 05 Apr 2011 14:55:38 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <bdwheele@indiana.edu>) id 1Q7BPO-0003IA-3A
	for qemu-devel@nongnu.org; Tue, 05 Apr 2011 14:55:24 -0400
Received: from hartman.uits.indiana.edu ([129.79.1.194]:40735
	helo=internal-relay.indiana.edu)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <bdwheele@indiana.edu>) id 1Q7BPN-0003HD-VI
	for qemu-devel@nongnu.org; Tue, 05 Apr 2011 14:55:22 -0400
Received: from mail-relay.iu.edu (burns.uits.indiana.edu [129.79.1.202])
	by internal-relay.indiana.edu (8.14.4/8.14.4/IU Messaging Team) with
	ESMTP id p35ItIwN013048
	for <qemu-devel@nongnu.org>; Tue, 5 Apr 2011 14:55:18 -0400
Received: from [129.79.35.119] (nibbler.dlib.indiana.edu [129.79.35.119])
	(authenticated bits=0)
	by mail-relay.iu.edu (8.14.4/8.14.4/IU Messaging Team Submission) with
	ESMTP id p35ItH1J007151
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO)
	for <qemu-devel@nongnu.org>; Tue, 5 Apr 2011 14:55:18 -0400
From: Brian Wheeler <bdwheele@indiana.edu>
Content-Type: text/plain; charset="UTF-8"
Date: Tue, 05 Apr 2011 14:55:16 -0400
Message-ID: <1302029716.31961.24.camel@nibbler.dlib.indiana.edu>
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [Qemu-devel] Questions about chardev (and ps/2 mouse)
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: qemu-devel@nongnu.org

I'm trying to disable the ps/2 mouse in favor of the serial mouse
provided by -chardev msmouse since the ps/2 mouse has had lots of
problems with older OSes (OpenStep, OS/2, Win 3.1, etc).  I've got a
couple of questions:

1) If I change a VMState something by appending a field (i.e.
"unplugged"), do I have to update version_id?  How do the
minimum_version_id{,_old} fields fit in?

2) I've had to hardcode the unplugged value in ps2_mouse_reset since the
call is pretty deep in the call stack, 8042->pckbd->ps2.  Ideally, I'd
like to set (*PS2MouseState)->unplugged from qemu_chr_open_msmouse() so
that if the serial mouse is set up the ps/2 mouse would be disabled.

3) When I enable the msmouse (via -chardev msmouse,id=mouse) qemu
segfaults.  I've traced it back to the CharDriverSTate for msmouse not
having a valid handler_opaque (it is null).  How would I connect that to
the serial port (any of them, but ideally the 2nd one)

Thanks for any hints!
Brian