Re: [Xen-devel] Xen 4.9 Development Update

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 09/12/16 19:01, Stefano Stabellini wrote:
> On Fri, 9 Dec 2016, Oleksandr Andrushchenko wrote:
>> On 12/09/2016 03:57 PM, Pasi Kärkkäinen wrote:
>>> On Fri, Dec 09, 2016 at 02:57:04PM +0200, Oleksandr Andrushchenko wrote:
>>>>>> Should we have a section on new PV drivers? If so, I suggest to add:
>>>>>> - Xen transport for 9pfs
>>>>>> - PV Calls
>>>>> Good idea. We could also include DRM and PV Sound (CC Oleksandr).
>>>>>
>>>> This is a great idea. Let me explain what we have and what the direction
>>>> is:
>>>> 1. Frontends which we already have, working, but need to refactor/cleanup:
>>>> 1.1. PV sound
>>>> 1.2. PV DRM
>>>> 1.3. DISPL protocol, I will push v1 for review right after sndif done
>>>> 1.3. PV DRM mapper (Dom0 generic DRM driver to implement DRM zero copy
>>>> via DRM Prime buffer sharing)
>>>> 1.4. PV events not done, but we are considering [1]. If it fits and
>>>> is maintained,
>>>> then we'll probably stick to it, otherwise new PV will be created
>>>>
>>>> 2. Backends, for the above frontends already implemented:
>>>> 2.1. A unified library for Xen backends (libxenbe)
>>>> 2.2. DRM + Wayland
>>>> 2.3. ALSA
>>>> 2.4. Events not implemented yet
>>>>
>>>> All the above sources are available on *public* Github repos
>>>> (I can provide links on request) and the intention is to
>>>> upstream.
>>>>
>>> Please do post the links..
>> Please note these are all WIP:
>> 1. Frontends
>> https://github.com/andr2000?tab=repositories
>> 2. Backends
>> https://github.com/al1img?tab=repositories
> Now, I don't want to sound pessimistic, but I thought I was being
> audacious when I wrote both PV Calls and 9pfs for 4.9 - do you really
> think it is feasable to complete upstreaming of PV sound, PV DRM, DISPL,
> PV DRM frontends and backends, all by April? I would probably reduce the
> list a bit.

I think it would be good to main two lists.  One of "the stuff people
are working on overall", and "the subset of it intended/expected for the
forthcoming release".

Stuff will invariably slip, but even if the work isn't intended for the
forthcoming release, it it still useful to see if anyone in the
community is working on a related topic.

~Andrew

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