From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([2001:4830:134:3::10]:36437)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <rjones@redhat.com>) id 1WPZ1C-0005Rl-Ig
	for qemu-devel@nongnu.org; Mon, 17 Mar 2014 11:00:03 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <rjones@redhat.com>) id 1WPZ17-0001S5-Mr
	for qemu-devel@nongnu.org; Mon, 17 Mar 2014 10:59:58 -0400
Received: from mx1.redhat.com ([209.132.183.28]:50602)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <rjones@redhat.com>) id 1WPZ17-0001Ro-Dk
	for qemu-devel@nongnu.org; Mon, 17 Mar 2014 10:59:53 -0400
Date: Mon, 17 Mar 2014 14:59:48 +0000
From: "Richard W.M. Jones" <rjones@redhat.com>
Message-ID: <20140317145948.GB24641@redhat.com>
References: <CAPM=9twJX3F+as1TuoerW1Yt-b0xw8YEf1YHa0B+MLMJBd0i_w@mail.gmail.com>
	<53270678.8090901@redhat.com>
	<CAFEAcA_i-S39_254dLWv95XYTtHMLr89aKM-9fF9omTWDOmZbg@mail.gmail.com>
	<20140317145741.GA24641@redhat.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20140317145741.GA24641@redhat.com>
Subject: Re: [Qemu-devel] virtio device error reporting best practice?
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/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: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: Laszlo Ersek <lersek@redhat.com>, Dave Airlie <airlied@gmail.com>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>, Seiji Aguchi <saguchi@redhat.com>

On Mon, Mar 17, 2014 at 02:57:41PM +0000, Richard W.M. Jones wrote:
> 
> On Mon, Mar 17, 2014 at 02:40:09PM +0000, Peter Maydell wrote:
> > On 17 March 2014 14:28, Laszlo Ersek <lersek@redhat.com> wrote:
> > > On 03/17/14 07:02, Dave Airlie wrote:
> > >> The main reason I'm considering this stuff is for security reasons if
> > >> the guest asks for something really illegal or crazy what should the
> > >> expected behaviour of the host be? (at least secure I know that).
> > >
> > > exit(1).
> > 
> > No thanks -- the guest should never be able to cause QEMU
> > to exit (in an ideal world). Use
> >    qemu_log_mask(LOG_GUEST_ERROR, ...)
> > and continue.
> 
> Don't look too closely at the spice backend ...
> 
> https://bugzilla.redhat.com/buglist.cgi?component=spice&list_id=2320267

A better link might be:
https://bugzilla.redhat.com/show_bug.cgi?id=997932#c13

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
libguestfs lets you edit virtual machines.  Supports shell scripting,
bindings from many languages.  http://libguestfs.org