From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([208.118.235.92]:52875)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <stefanha@redhat.com>) id 1TbvsT-0002lE-8c
	for qemu-devel@nongnu.org; Fri, 23 Nov 2012 11:13:18 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <stefanha@redhat.com>) id 1TbvsN-00067x-BG
	for qemu-devel@nongnu.org; Fri, 23 Nov 2012 11:13:17 -0500
Received: from mx1.redhat.com ([209.132.183.28]:5737)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <stefanha@redhat.com>) id 1TbvsN-00067r-3r
	for qemu-devel@nongnu.org; Fri, 23 Nov 2012 11:13:11 -0500
Date: Fri, 23 Nov 2012 17:13:02 +0100
From: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20121123161302.GA2915@stefanha-thinkpad.redhat.com>
References: <1353595852-30776-1-git-send-email-fred.konrad@greensocs.com>
	<1353595852-30776-2-git-send-email-fred.konrad@greensocs.com>
	<20121123122339.GB29474@stefanha-thinkpad.redhat.com>
	<50AF866A.2000709@greensocs.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <50AF866A.2000709@greensocs.com>
Subject: Re: [Qemu-devel] [RFC PATCH v2 1/3] virtio-bus : Introduce
	VirtioBus.
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: Konrad Frederic <fred.konrad@greensocs.com>
Cc: peter.maydell@linaro.org, aliguori@us.ibm.com, e.voevodin@samsung.com, mark.burton@greensocs.com, qemu-devel@nongnu.org, cornelia.huck@de.ibm.com, afaerber@suse.de

On Fri, Nov 23, 2012 at 03:21:30PM +0100, Konrad Frederic wrote:
> On 23/11/2012 13:23, Stefan Hajnoczi wrote:
> >On Thu, Nov 22, 2012 at 03:50:50PM +0100, fred.konrad@greensocs.com wrote:
> >>+struct VirtioBusInfo {
> >This is defining an ad-hoc interface.  QOM has support for interfaces so
> >that a virtio-pci adapter brovides a VirtioBindingInterface which
> >VirtioBus can talk to intead of using VirtioBusInfo.
> Can you point me to example in the tree to see how this QOM
> interfaces work ?

hw/stream.h and hw/stream.c

A StreamSlave has one method:

    void (*push)(StreamSlave *obj, unsigned char *buf,
                 size_t len, uint32_t *app);

The xlnx.axi-ethernet device in hw/xilinx_axienet.c is an example of a
class that implements the StreamSlave interface.

Stefan