[Fedora-xen] F10 crystal ball gazing

[Mark McLoughlin]

On Wed, 2008-07-16 at 15:36 +0300, Pasi Kärkkäinen wrote:
> On Sat, Jul 05, 2008 at 11:39:27AM +0100, Mark McLoughlin wrote:
> > On Fri, 2008-07-04 at 22:24 +0100, Andy Burns wrote:
> > 
> > > Given that xen is entering feature freeze for updated release ~August
> > > is it too early to ask what the *hopes* are for xen in fedora10?
> > 
> > There has been very little progress on the Dom0 pv_ops work of late, so
> > it's getting harder to imagine it being in shape for Fedora 10. Still
> > hope, for sure, but getting slimmer.
> > 
> > > xen 3.3.0 (or late rc) or is this still likely to be 3.2.1 or 3.2.2?
> > 
> > Not really important if there's no Dom0 kernel. If there is, we'll
> > definitely update.
> > 
> > > kernel 2.6.27(or late rc) with pv_ops for 32 and 64 bit, dom0 and domU?
> > 
> > I would expect our DomU kernel to continue tracking the bare-metal
> > kernel versions - so, yeah, 2.6.27 probably.
> > 
> > Jeremy Fitzhardinge sounds fairly confident of having much of x86_64
> > DomU ready for the 2.6.27 merge window. If that happens, our patch set
> > would be quite small and I'd imagine we'd enable CONFIG_XEN in the
> > bare-metal kernel and drop the kernel-xen package.
> > 
> 
> At the moment it looks like x86_64 xen domU patches are going in for 2.6.27.
> 
> http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git;a=summary
> 
> and
> 
> http://wiki.xensource.com/xenwiki/XenParavirtOps

Yep, and that's excellent progress. As soon as the stock rawhide kernel
makes its first move to 2.6.27, I plan to build a new kernel-xen based
on that.

What we're discussing currently, though, is whether at that point we
should immediately progress with the plan of merging kernel-xen back
into the stock kernel so that you boot the same pv_ops enabled kernel
for Xen DomU and bare-metal.

If it looks like the Dom0 work is making progress, we might hold off on
doing that until Dom0 is upstream. Personally, I can't see Dom0 being in
shape for F10 and so we should proceed with completing the DomU work.

Cheers,
Mark.