Writing quote of the day:
"i mean, we shouldn't slavishly avoid double negatives when they make our meaning less unclear."
Take that, English language.
The sole problem that I had setting up a pvops domU on a pvops dom0 (mostly following the instructions at http://bderzhavets.wordpress.com/2009/03/29/setup-xen-unstable-dom0-with-2629-tip-pvops-enabled-kernel/ ) was in trying to get the Ubuntu domU's console to work. Eventually I solved it by adding an 'hvc0' file to the domU's /etc/event.d/ directory, like this:
# cd /etc/event.d
# cp tty1 hvc0
# sed -i -e "s/tty1/xvc0/g" hvc0
(Credit to Mr. bderzhavets, again. There's a lot of good and useful information there.)
I also included an "extra='xencons=tty'" in the domU config. (I believe. Might have been hvc. Try it and see.)
