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xen-users
Re: [Xen-users] When will xen-compatibilty be standard in Linux kernels?
> > I thought I'd heard several months back that Xen compatibility patches
> > were going to be rolled into the mainstream linux kernel source trees, so
> > that in future Xen would be just another architecture one could select
> > under make config -- not requiring a special, patched kernel.
> >
> > But this doesn't seem to be the case yet. Did I misunderstand what the
> > plans were, or is it just taking longer that I expected? Does anybody
> > know the expected timeline for this? In which kernel release can we
> > expect this?
> >
> > Thanks,
> > Derek.
>
> I had heard back in the spring that a politacal bruhaha had erurpted
> as to whether to accept pure Xen patches vs. generic Hypervisor
> patches.
>
> IIRC, the generic set of patches were coming from VMware or maybe MS.
>
> Was it ever settled?
VMware produced the generic patches for their VMI interface. The
disagreements were at least partly technical regarding the approaches of the
VMI and Xen patches - both had merits and problems. Getting competing
companies to co-operate is always interesting proposition, though, I think!
The dispute has seemingly been settled by a resolution to implement an
interface called "paravirt_ops" which can either talk to VMI (VMware) or the
Xen hypercall API. paravirt_ops should eventually allow a single kernel
build to run on one or more hypervisors in paravirtualised mode, and natively
on hardware - with decent performance.
The plan was to push ahead with getting basic infrastructure for paravirt_ops
merged pretty quickly.
The merge process for the Xen code has been pretty slow, but it is still
planned to happen.
Cheers,
Mark
--
Dave: Just a question. What use is a unicyle with no seat? And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!
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