From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?Roger_Pau_Monn=E9?= Subject: Re: Automotive PV drivers project request Date: Wed, 4 Jun 2014 16:36:45 +0200 Message-ID: <538F2EFD.1020909@citrix.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Artem Mygaiev , xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org On 04/06/14 15:04, Artem Mygaiev wrote: > As a part of effort on bringing Xen into Automotive (and thus Embedded) > space, we are working on a set of PV drivers needed to share > peripherals between domains. > * PV audio - new driver using ALSA > * PV USB - based on old existing PV USB solution > * PV framebuffer - modifications and improvements for existing FB > * PV events - new driver for sharing HIDs across domains (touchscreen, > keyb, etc.) > This list is not final, other things are to be added later on. Each > driver consists, obviously, of frontend and backend which may be > implemented for different OSes. So far only Linux is supported, QNX is > wip, ArcCore or similar being considered. Due to this, each driver has > following structure (sample): > /pv_audio > /linux-alsa-be > /linux-fe > /qnx-be > /qnx-fe > Linux kernel code is developed under GPLv2 license, userspace > components like some backends are under Apache 2 license, so can be > integrated into software with commercial licenses. QNX and other OSes > will have licenses that are required by corresponding regulations, some > may be not open nevertheless we tend to make all parts of the code > available to the Xen community. Hello, Most of the Xen PV frontends/backends inside of the Linux kernel are under a dual-license like the following (this one is from blkfront): * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation; or, when distributed * separately from the Linux kernel or incorporated into other * software packages, subject to the following license: * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this source file (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, copy, modify, * merge, publish, distribute, sublicense, and/or sell copies of the Software, * and to permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. Which allows them to be imported/shared with other OSes. Could you consider releasing the Linux drivers under this kind of license? Thanks, Roger.