It looks like previous versions of Ubuntu had a package called linux-ec2 that would install a kernel with Xen Guest support. I was unable to find any packages in specifically 12.10 that install a kernel with Xen Guest support built in.
My question: are there any official packages in Quantal Quetzal with a Xen DomU (Guest) support pre-built so that I don't need to compile it myself or download someone else's kernel?