I've been searching around for people having experience with this. I've also tried it myself (but it didn't work). I want to run Xen inside a KVM Guest. Just Xen PV, not HVM, obviously. I could install it just fine but it doesn't complete the boot and seems to hang at completely different points.
Why would I want this? For fun and testing purposes :)
Anyway, the real question is: has anybody done it before? And if yes: how?