From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga12.intel.com ([192.55.52.136]:57899 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2409596AbgDPOGO (ORCPT ); Thu, 16 Apr 2020 10:06:14 -0400 Date: Thu, 16 Apr 2020 16:05:30 +0200 From: Guennadi Liakhovetski Subject: RPMSG over VirtIO under KVM Message-ID: <20200416140307.GA25561@ubuntu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: linux-remoteproc-owner@vger.kernel.org To: linux-remoteproc@vger.kernel.org List-ID: Hi, It has been proposed to port the VirtIO SOF driver [1], used to implement audio support under Linux, running in a KVM guest, to use RPMSG to communicate with the SOF vhost driver, running on the Linux host. On one hand I see an rpmsg-virtio driver, which should make such a port possible, on the other hand I don't see a single VirtIO driver in the kernel, using RPMSG for Linux virtualisation. Hence my questions: is this a good idea? Is there anything in the kernel VirtIO RPMSG implementation, that would make this impossible? Thanks Guennadi [1] https://thesofproject.github.io/latest/developer_guides/virtualization/virtualization.html