Description of problem:
Either virsh list or virsh -c xen:/// list shows Domain-0 on a Xen Hypervisor Ubuntu OS.

Version-Release number of selected component (if applicable):
$ virsh version
Compiled against library: libvir 0.7.5
Using library: libvir 0.7.5
Using API: QEMU 0.7.5
Running hypervisor: QEMU 0.12.3

virsh -c xen:/// version
Compiled against library: libvir 0.7.5
Using library: libvir 0.7.5
Using API: Xen 3.0.1
Running hypervisor: Xen 4.0.0

How reproducible:

Steps to Reproduce:
1.
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Actual results:

sudo virsh list
 Id Name                 State
----------------------------------

sudo virsh -c xen:/// list
 Id Name                 State
----------------------------------

sudo xm list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0  1017     2     r-----   2147.0

Expected results:

sudo virsh list
 Id Name                 State
----------------------------------
0 Domain-0               running


Additional info:
Due to Ubuntu doesn't supply a Xen image it is built from pre-scriptions from the internet.

uname -rm
2.6.32.10 i686