Xen/openSUSE
< Xen
Untested!
I'm not entirely sure about Novell's stance on Xen. There's some documentation in the opensuse.org wiki, but a lot of it outdated and a bit SLES centric, but let's see what we have so far.
openSUSE 11.3 M3
# zypper search xen [...] | kernel-xen | The Xen Kernel | kernel-xen-base | The Xen Kernel - base modules | xen | Xen Virtualization: Hypervisor (aka VMM aka Microkernel) | xen-tools | Xen Virtualization: Control tools for domain 0 | xen-tools-domU | Xen Virtualization: Control tools for domain U | xen_server | Xen Virtual Machine Host Server
Looks pretty much complete to me. After installing these, our GrUB configuration may look like this:
# grep -A5 Xen /boot/grub/menu.lst title openSUSE 11.3 - Xen root (hd0,0) kernel /xen-4.0.gz module /boot/vmlinuz-2.6.34-3.1-xen root=/dev/sda1 module /boot/initrd-2.6.34-3.1-xen