Re: [Xen-devel] Xen 4.5 development update

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On 27/05/14 19:06, konrad.wilk@xxxxxxxxxx wrote:
> Below is a summary of the projects / features being worked on for the 4.5
> time frame that I had been gathering.
> 
> It is not complete! I would like folks input if I had missed something
> or screwed up. Will also talk at Xen Hackahon about this and take a look
> at  http://wiki.xen.org/wiki/Xen_Roadmap/4.4 to see which of the
> items there should move over.
> 
> The tentative feature freeze is scheduled for September 10th,
> which is months away.  With that in mind, I think it's time to take
> stock of the development, so we know whether to ask for more help or divert
> resources.
> 
> For items involving code hosted on the Xen.org site (including qemu-xen),
> that means a likelihood of having the feature code-complete and mostly
> working by the feature freeze.  (It's OK if there are still bugs to be
> worked out.)  For items in Linux, I think it would mean having items on track
> to make it into the kernel released just after the scheduled 4.5 time frame.
> Not sure what that means for libvirt. :-)
> 
> For items involving code hosted on the Xen.org site (including qemu-xen),
> that means a likelihood of having the feature code-complete and mostly
> working by the feature freeze.  (It's OK if there are still bugs to be
> worked out.)  For items in Linux, I think it would mean having items on track
> to make it into the kernel released just after the scheduled 4.5 time frame.
> Not sure what that means for libvirt. :-)
> 
> = Timeline =
> 
> We are planning on a 9-month release cycle.  Based on that, below are
> our estimated dates:
> * Feature Freeze: 10th September 2014
> * First RC: 10th October
> * Release: 10th December 2014
> 
> The RCs and release will of course depend on stability and bugs, and
> will therefore be fairly unpredictable.  The feature freeze may be
> slipped for especially important features which are near completion.
> 
> = Prognosis =

[...]

> * Roger Pau Monné  Prognosis:   100 %
>     Xen PVH dom0
>     PVH FreeBSD dom0

Hello Konrad,

Thanks for doing this list, I certainly think Xen PVH Dom0 will make it
to 4.5, most patches are already committed, and the remaining ones are
already reviewed AFAIK. So very soon we will have PVH Dom0 available on
Intel HW with EPT support, which brings the next question, what do we
think we should work on after that? There are a bunch of things still
pending for PVH, and I'm not sure we will be able to get all them done
for 4.5, here's a list on top of my head:

 - PCI passthrough for DomU.
 - Migration of PVH DomUs.
 - Migration of guests from a PVH Dom0.
 - AMD hardware support.
 - PVH working with shadow.

IMHO, I think the two most important items would be getting PVH working
on AMD hardware and shadow, but maybe others have different opinions.

Roger.


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