What administrative user interfaces for Xen are available for NetBSD?

[Matthias Petermann <mp%petermann-it.de@localhost>]

Hello, everyone,

since I set up my lab environment on NetBSD/Xen I am very satisfied with 
the handling of Xen. I use a mixture of sparse image files and LVM 
volumes as storage. The guests are mostly NetBSD (PVM) and some Windows 
7 VMs. Apart from snapshots (which I would probably get if I switched to 
ZFS volumes) I don't really miss anything and am also satisfied with the 
performance.

But what I am asking myself right now... is there a higher 
administration interface besides the command line tools (xl)? Libvirt is 
supposed to support Xen (I don't know about nvmm?), but there should be 
some kind of user interface on top of it. If someone has experience with 
this or knows a halfway recommendable configuration on a NetBSD Dom0, I 
would be grateful for a little tip. In the pkgsrc I did not find 
anything obvious in this regard.

Kind regards
Matthias