XEN on Mandriva 2009.1

[bravo]

Hi, I'm trying to install Xen on Mandriva 2009.1. Everything is fine, I can start Xen kernel:

# uname -r
2.6.27.21-xen-3.3.1-4mdv

Now I'd like to execute "xm list" to be sure that the system recognizes Domain0, but I get the following message:

/usr/lib/python/xen/util/acmpolicy.py:20: DeprecationWarning: the sha module isdeprecated; use the hashlib module instead
import sha
Error: Unable to connect to xend: No such file or directory. Is xend running?

How can I correct this situation?