Re: [Xen-devel] libxl drivers for libvirt?

[George Dunlap <george.dunlap@xxxxxxxxxxxxx>]

On 24/10/12 19:11, Jim Fehlig wrote:
> > * What kind of Xen support for libxl is in the libvirt development
> > branch, and do you have an idea when full support for 4.2 (at least,
> > including migration, suspend/resume, &c) might be available?
> Nothing has changed in git master over what is available in 0.10.2, but
> we are now starting to pick up this work.  Our priorities are to first
> get the libxl driver compiling against 4.2 and all of the existing
> functionality that works with 4.1 working with 4.2, followed by closing
> the feature gap with the legacy xen driver, and finally closing the
> feature gap with the qemu driver where it makes sense.  This is
> obviously quite a bit of work and any help would be appreciated :).
>
> BTW, we don't have any motivation to add features to the 4.1 version of
> the libvirt libxl driver.
That sounds like a good plan.  For 4.1, xend is still the default 
toolstack, and libxl is a "tech preview"; for 4.2, xl is the default 
toolstack, and (if I understand correctly) we're officially going to be 
supporting the libxl interface in a backwards-compatible way from here 
forward.
It seems to me that if you have trouble supporting both libxl 4.2 and 
libxl 4.1, that it might be better just to drop 4.1 support and focus on 
4.2.  Ian Campbell / Jackson: Thoughts?
 -George

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