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From: Vincent Whitchurch <vincent.whitchurch@axis.com>
To: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Cc: <kvm@vger.kernel.org>, <linux-remoteproc@vger.kernel.org>,
	<virtualization@lists.linux-foundation.org>,
	<sound-open-firmware@alsa-project.org>,
	Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
	Liam Girdwood <liam.r.girdwood@linux.intel.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	Jason Wang <jasowang@redhat.com>,
	Ohad Ben-Cohen <ohad@wizery.com>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Mathieu Poirier <mathieu.poirier@linaro.org>
Subject: Re: [PATCH v3 5/5] vhost: add an RPMsg API
Date: Wed, 17 Jun 2020 21:17:42 +0200	[thread overview]
Message-ID: <20200617191741.whnp7iteb36cjnia@axis.com> (raw)
In-Reply-To: <20200527180541.5570-6-guennadi.liakhovetski@linux.intel.com>

On Wed, May 27, 2020 at 08:05:41PM +0200, Guennadi Liakhovetski wrote:
> Linux supports running the RPMsg protocol over the VirtIO transport
> protocol, but currently there is only support for VirtIO clients and
> no support for a VirtIO server. This patch adds a vhost-based RPMsg
> server implementation.

This looks really useful, but why is it implemented as an API and not as
a real vhost driver which implements an rpmsg bus?  If you implement it
as a vhost driver which implements rpmsg_device_ops and
rpmsg_endpoint_ops, then wouldn't you be able to implement your
vhost-sof driver using the normal rpmsg APIs?

I tried quickly hooking up this code to such a vhost driver and I was
able to communicate between host and guest systems with both
rpmsg-client-sample and rpmsg-char which almost no modifications to
those drivers.

  parent reply	other threads:[~2020-06-17 19:24 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-27 18:05 [PATCH v3 0/5] Add a vhost RPMsg API Guennadi Liakhovetski
2020-05-27 18:05 ` [PATCH v3 1/5] vhost: convert VHOST_VSOCK_SET_RUNNING to a generic ioctl Guennadi Liakhovetski
2020-05-27 18:05 ` [PATCH v3 2/5] vhost: (cosmetic) remove a superfluous variable initialisation Guennadi Liakhovetski
2020-05-27 18:05 ` [PATCH v3 3/5] rpmsg: move common structures and defines to headers Guennadi Liakhovetski
2020-05-27 18:05 ` [PATCH v3 4/5] rpmsg: update documentation Guennadi Liakhovetski
2020-05-28 19:26   ` Mathieu Poirier
2020-05-27 18:05 ` [PATCH v3 5/5] vhost: add an RPMsg API Guennadi Liakhovetski
2020-05-28 19:26   ` Mathieu Poirier
2020-06-17 19:17   ` Vincent Whitchurch [this message]
2020-06-18  9:03     ` Guennadi Liakhovetski
2020-06-18  9:33       ` Vincent Whitchurch
2020-06-18 10:39         ` Guennadi Liakhovetski
2020-06-18 13:52           ` Vincent Whitchurch
2020-06-18 14:14             ` Guennadi Liakhovetski
2020-07-14  8:33               ` Vincent Whitchurch
2020-05-29  6:01 ` [PATCH v3 0/5] Add a vhost " Jason Wang
2020-05-29  6:50   ` Guennadi Liakhovetski
2020-05-29  7:06     ` Jason Wang
2020-06-04 19:23 ` Michael S. Tsirkin
2020-06-05  6:34   ` Guennadi Liakhovetski
2020-06-08  7:37     ` Guennadi Liakhovetski
2020-06-08  9:09       ` Michael S. Tsirkin
2020-06-08  9:11       ` Guennadi Liakhovetski
2020-06-08  9:19         ` Michael S. Tsirkin
2020-06-08 10:15           ` Guennadi Liakhovetski
2020-06-08 11:16             ` Guennadi Liakhovetski
2020-06-08 13:08               ` Michael S. Tsirkin
2020-06-08 13:01             ` Michael S. Tsirkin
2020-06-05 10:01   ` [Sound-open-firmware] " Liam Girdwood

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