What is the current state of Dom0 kernel support?

[Anthony Wright <anthony@overnetdata.com>]

I've seen a number of posts relating to dom0 support in more recent
kernel versions, but I'm unsure what the current situation is and
wondered if somebody might be able clarify things.

I saw a lot of activity around 2.6.30 to get the dom0 patches accepted
into the mainline kernel, but now while I believe the 2.6.31 merge
window is open I see very little activity. There was an interesting
thread prior to the merge window opening on the subject of dom0 support
and wondered if as a result of this there's been a decision not to try
to get the patches accepted at this time? If this is the case is there a
plan to try again in the future?

I also saw a thread from Kier recently on the subject of the xenbits
linux trees, and wondered if any decision came out of that? Within the
thread I saw mention of a number of other kernel patch sets that offer
dom0 in a more recent kernels, but certain features seem to be missing
from each one.

If I wanted to to use a more recent kernel for dom0 within the next 3
months what options are available, and do these options have any
limitations?

thanks,

Anthony Wright.