paravirt_ops xen booting

[chrisw at sous-sol.org (Chris Wright)]

Just a note to let you know we've got domU booting with paravirt_ops
XenoLinux.  There's still some minor cleanups to do:

- soft watchdog firing
- inconsistent device probing
- console on tty1

Then onto smp support, and removing the rest of the limitations
of the current patchset.

thanks,
-chris