From: Lars Kurth <lars.kurth@xen.org>
To: Artem Mygaiev <artem.mygaiev@globallogic.com>,
Dario Faggioli <dario.faggioli@citrix.com>
Cc: Andrii Tseglytskyi <andrii.tseglytskyi@globallogic.com>,
xen-devel@lists.xen.org
Subject: Re: [Need Input] (informal) Automotive PV drivers subproject request
Date: Wed, 11 Jun 2014 12:37:32 +0100 [thread overview]
Message-ID: <53983F7C.2070008@xen.org> (raw)
In-Reply-To: <CALQdcAKawPE0o8xdgf-6ajcvubKxjAsjA9fc=jkuiG0UXZMFCQ@mail.gmail.com>
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On 05/06/2014 13:47, Artem Mygaiev wrote:
>>>> 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.
>>> Artem, Andrii: Just to clarify
>>> * Can QNX drivers be built a) on Linux and b) without requiring to
>>> purchase QNX
>>> * Are there any issues with QNX driver headers : in other words, can
>>> these be included under OSI approved licenses ?
>>>
>> I agree this is one interesting bit to know.
> a) yes, there is a QNX Momentics IDE available for Linux
> b) there is an "academic" free license and also 30-day evaluation
It is not clear to me whether this would work. So let me try and clarify
through a few questions.
Question 1: Can the QNX drivers be built with free and open source
software only (e.g. GCC)? If the answer is yes, that would solve most of
the problem. If not, we need to look into other options (in a similar
way as we needed to do this for
http://wiki.xenproject.org/wiki/Windows_PV_Drivers_Incubation_Project_Proposal
- where Visual Studio is necessary for individuals to build and test and
thus ultimately to contribute to the drivers)
Question 2: Can the QNX drivers be tested with free and open source
software only or is some code under proprietary license necessary? And
related we probably need some HW to test stuff on in future also?
IMHO being able to test the QNX drivers, should be a long-term goal of
the subproject. To do this, the Xen Project may have to purchase a QNX
license for a test machine and some HW. There are several ways to do this:
* Short term: A vendor could decide to test on behalf of the community.
We have done this before. But it is not ideal in the long-run.
* Long term: We may need some funds from the AB (or a donation from a
non-AB vendor) to enable this.
* Long term: it is conceivable that the Xen Project may be counted as
"Non-Commercial Developers", in which case at least the software for
future test infrastructure could be obtained for free for the Xen Project.
This does not have to be solved straight away and is IMHO not blocking
the progress of this subproject proposal. Also, we have found a way to
address this for
http://wiki.xenproject.org/wiki/Windows_PV_Drivers_Incubation_Project_Proposal
@Artem: Any guidance would be helpful
Note 3: As for a nice development environment such as an IDE: it is IMHO
acceptable for an IDE to be available under a commercial license, as
long as an FOSS alternative (e.g. GCC, GDB, ...) is available.
I did check http://www.qnx.org.uk/legal/licensing/non_commercial.html
which seems to imply that there is a free license for "Non-Commercial
Developers". The term seems "Non-Commercial Developers" to be tied to
individuals not working for a commercial end-purpose, which is likely
good enough. But I have not checked the detailed terms.
This document also seems to have some provision for open source projects
("non-commercial group projects") - although the terminology is not
clear and not specific. So I am not sure whether we would count as a
"non-commercial group project" and whether say a Linux Foundation
Collaborative project would be able to get a development tools for a
build and test service under the "Non-Commercial Developers" clause for
free.
@Artem: Any guidance would be helpful
Question 4: I tripped over
http://www.qnx.org.uk/legal/licensing/crm.html which raises some
questions related to QNX licenses and what license we would host QNX
drivers under. I believe - I will need to check this with the Linux
Foundation - that as a Collaborative Project we can only host code under
OSI approved licenses. So we would need to find a compatible OSI
approved license for the QNX drivers. There also seems to be a note that
some QNX software is available under Apache licenses (see
http://www.qnx.org.uk/legal/licensing/open_source.html). I guess what
this comes down to is whether QNX would allow us to make available a QNX
BSP for Xen Project software under an OSI approved license (e.g. Apache
2.0). There is a statement in
http://www.qnx.org.uk/legal/licensing/open_source.html which says "QSS
[QNX Software Systems] has begun publishing QNX board support package
(BSP) software under the Apache License, Version 2.0 (Apache 2.0).
Members of the QNX developer community are encouraged to use their
Momentics Tools to create BSPs to allow the QNX RTOS to run on a wider
variety of hardware platforms [without stating that publication under
Apache 2 is encouraged - but it sort of implies it]". This implies that
maybe we are OK, but it needs checking.
@Artem, this is probably something you will need to follow up on and
provide us with some more clarity. This would potentially be a blocking
issue for the proposal.
Regards
Lars
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next prev parent reply other threads:[~2014-06-11 11:37 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-04 13:04 Automotive PV drivers project request Artem Mygaiev
2014-06-04 14:22 ` [Need Input] (informal) Automotive PV drivers subproject request Lars Kurth
2014-06-04 16:35 ` Dario Faggioli
2014-06-05 12:47 ` Artem Mygaiev
2014-06-05 13:32 ` Dario Faggioli
2014-06-06 8:59 ` Ian Campbell
2014-06-06 13:05 ` Lars Kurth
2014-06-06 15:08 ` Ian Campbell
2014-06-06 19:49 ` Artem Mygaiev
2014-06-06 22:01 ` Dario Faggioli
2014-06-09 10:18 ` Stefano Stabellini
2014-06-09 12:25 ` Lars Kurth
2014-06-09 12:30 ` Ian Campbell
2014-06-09 13:14 ` Lars Kurth
2014-06-09 12:37 ` Lars Kurth
2014-06-09 13:12 ` Ian Jackson
2014-06-09 13:31 ` Lars Kurth
2014-06-10 14:22 ` Artem Mygaiev
2014-06-10 14:51 ` Lars Kurth
2014-06-09 12:15 ` Lars Kurth
2014-06-11 11:37 ` Lars Kurth [this message]
2014-06-04 14:36 ` Automotive PV drivers project request Roger Pau Monné
2014-06-04 15:21 ` [Need Input] (informal) Automotive PV drivers subproject request Lars Kurth
2014-06-04 15:34 ` Roger Pau Monné
2014-06-05 13:07 ` Artem Mygaiev
2014-06-05 13:17 ` Automotive PV drivers project request David Vrabel
2014-06-05 13:22 ` Artem Mygaiev
2014-06-10 12:38 ` David Vrabel
2014-06-10 14:09 ` Lars Kurth
2014-06-10 14:18 ` Artem Mygaiev
2014-06-11 10:10 ` Stefano Stabellini
2014-06-11 15:08 ` Automotive PV drivers project request (need more input) Lars Kurth
2014-06-12 9:34 ` Stefano Stabellini
2014-06-12 13:43 ` Paul Durrant
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