Re: Xen 4.5 development update (July update)

[Fabio Fantoni <fabio.fantoni@m2r.biz>]

Il 23/07/2014 15:45, Stefano Stabellini ha scritto:
> On Wed, 23 Jul 2014, Fabio Fantoni wrote:
>> Il 23/07/2014 12:20, Stefano Stabellini ha scritto:
>>> On Wed, 23 Jul 2014, Ian Campbell wrote:
>>>> (trimming CC to just those related to things I've commented on)
>>>>
>>>> On Tue, 2014-07-22 at 20:28 -0400, konrad.wilk@oracle.com wrote:
>>>>
>>>>> fair - still working on it, patches are prototypes or RFC
>>>> You've used this (correctly per your definition here) on various things
>>>> which it seems to me are very unlikely to make it for 4.5, i.e. things
>>>> which are really early prototypes etc, which made me pause every time I
>>>> ready it and have to think back to the definition.
>>>>
>>>> I guess what I'm saying is that "fair" is not a good label for this
>>>> state, it implies that while the thing is a WIP it is still likely to
>>>> make it for 4.5.
>>>>
>>>> I think you need a lower ranked WIP label for things which are in that
>>>> state of prototype/RFC but not likely to make 4.5. "wip" or "inprogress"
>>>> perhaps.
>>>>
>>>>> = Open =
>>>>>
>>>>> == ARM ==
>>>> [...]
>>>>
>>>>> *  ARM VM save/restore/live migration (ok)
>>>>>     -  Junghyun Yoo
>>>> I've not heard from Junghyun since the initial reposting, not sure what
>>>> the prognosis is but given lack of support for SMP and some of the other
>>>> issues I'm more incline to suggest fair rather than OK. Jinghyun, do you
>>>> have any thoughts?
>>>>
>>>> It's possible that the "save/restore/dead-migration" bit is "ok", it's
>>>> the live migration bits where the issues mostly remain iffy.
>>>>
>>>> Also this is dependent on the migration v2 by Andrew et al.
>>>>
>>>>> *  ARM: Use super pages in p2m (ok)
>>>>>      v5 posted
>>>>>     -  Ian Campbell
>>>> Committed.
>>>>
>>>>> == QEMU ==
>>>>>
>>>>> *  Rebase of QEMU 2.0 and SeaBIOS (fair)
>>>>>     -  Ian Jackson
>>>> What is this? Neither of them sound like Ian J things. Stefano maintains
>>>> Qemu and I take care of SeaBIOS.
>>> Yeah, it should be me for QEMU and it is done.
>>>
>>>
>>>> >From the SeaBIOS side we are currently using the latest upstream.
>>>>
>>>> IIRC Stefano has merged the version of qemu which he intends 4.5 to ship
>>>> with, but he should confirm...
>>> Yes, I have already merged QEMU 2.0.0 and I am not planning to merge
>>> again a new QEMU upstream release before 4.5.
>> qemu 2.1 is near to be released, now is rc3, why not update to 2.1?
> I don't think we would have enough time to test it throughly.
However, the major distributions will update to latest qemu tested or 
notin Xen.
I think it's always best to use the latest stable qemu in xen-unstable, 
at least until will xen reach the freeze.