Re: [PATCH] xen: core dom0 support

From: Gerd Hoffmann
Date: Mon Mar 02 2009 - 07:26:38 EST


Ingo Molnar wrote:
> * Gerd Hoffmann <kraxel@xxxxxxxxxx> wrote:
>> The current, out-of-tree xen kernel stuff is based on 2.6.18.
>> [...]
>
> Sure, but what i'm pointing out is the following aspect of
> communication:
>
>>>> [...] At the moment its all running on massive out-of-tree
>>>> patches, which doesn't make anyone happy. It's best that it
>>>> be in the mainline kernel. You know, like we argue for
>>>> everything else.
>
> Comparing it to a 2.6.18 base is simply misleading when it comes
> to upstreaming something. Enterprise distros will rebase, and
> their out-of-tree pile of patches will shrink.

I think Jeremy refers to the 2.6.18 kernel though. And IMHO it isn't
misleading as this is the only option for a dom0 kernel. Well, was
until very recently, now you can also run the latest pv_ops bits with
dom0 support. That is still very young code though and I wouldn't use
that (yet) for production systems. Works fine on my development box though.

The bits needed for pv_ops based dom0 support in arch/x86 is small
compared to what is already there for domU support.

cheers,
Gerd
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