Re: [Xen-devel] 4.3 Planning: Taking stock

[George Dunlap <george.dunlap@xxxxxxxxxxxxx>]

On 24/01/13 11:16, Daniel Kiper wrote:
> On Wed, Jan 23, 2013 at 05:00:26PM +0000, Jan Beulich wrote:
> > > > > On 23.01.13 at 17:52, George Dunlap <George.Dunlap@xxxxxxxxxxxxx> wrote:
> > > > * Xen EFI feature: dom0 able to make use of EFI run-time services
> > > Daniel Kiper is already working on this, but has just started.  The issue
> > > (as I understand it) is that if there are systems where the ACPI tables are
> > > only discoverable via EFI, then Xen+pvops will not be able to boot if pvops
> > > doesn't have EFI run-time support.  The following version of Xen won't come
> > > out until probably Q2 2014, and won't hit distros probably until 6 months
> > > after that.
> > >
> > > Given that, what do we think is the likelihood of such systems cropping up
> > > in that timeframe?  If the answer is anything other than "very low", I
> > > think that as a strategic measure, this one is probably important enough to
> > > slip the schedule a little bit if necessary.
> > Except that this ought to be marked (external) in the first place:
> > The hypervisor support is all there (otherwise our kernels wouldn't
> > have been successfully booting on EFI for well over a year), and
> > hence this work shouldn't really have any impact on the schedule.
> >
> > The one feature here that requires work in our tree is to be able
> > to boot via grub.efi (irrespective of how little I personally like that);
> > I'm not sure Daniel was also planning to look into that part.
> I am going to do all work which is needed to run Xen + upstream Linux
> Kernel on EFI enabled platform. I am going to look at GRUB2 too (as
> stated eariler). I hope that this does not require a lot of work and
> relevant patches could be ready before 4.3 feature freeze.
Great!  If you could prioritize Xen booting under grub2.efi, it seems 
like that would benefit the xen.org project overall.
Shall I put you down as owner for "Xen on grub.efi", and mark it as 
"Fair" (given that you don't yet know how much work it will be)?
 -George


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