Xen guest installation failure with virt-manager due to missing qemu-dm

Attempting to install a Xen guest VM (Ubuntu 11.04 64-bit) using virt-manager fails with the error:

    Unable to complete install: 'POST operation failed: xend_post: error from xen daemon: (xend.err "Error creating domain: device model '/usr/lib64/xen/bin/qemu-dm' not found")'

    Traceback (most recent call last):
      File "/usr/share/virt-manager/virtManager/asyncjob.py", line 44, in cb_wrapper
        callback(asyncjob, *args, **kwargs)
      File "/usr/share/virt-manager/virtManager/create.py", line 1899, in do_install
        guest.start_install(False, meter=meter)
      File "/usr/lib/pymodules/python2.7/virtinst/Guest.py", line 1223, in start_install
        noboot)
      File "/usr/lib/pymodules/python2.7/virtinst/Guest.py", line 1291, in _create_guest
        dom = self.conn.createLinux(start_xml or final_xml, 0)
      File "/usr/lib/python2.7/dist-packages/libvirt.py", line 1686, in createLinux
        if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self)
    libvirtError: POST operation failed: xend_post: error from xen daemon: (xend.err "Error creating domain: device model '/usr/lib64/xen/bin/qemu-dm' not found")

The path being used appears to be obsolete. This binary seems to be actually located in /usr/lib/xen-4.1/bin/qemu-dm.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: virt-manager 0.9.0-1ubuntu3
ProcVersionSignature: Ubuntu 3.0.0-12.20-server 3.0.4
Uname: Linux 3.0.0-12-server x86_64
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Sun Feb 19 04:46:40 2012
InstallationMedia: Ubuntu-Server 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
PackageArchitecture: all
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_US.UTF-8
SourcePackage: virt-manager
UpgradeStatus: No upgrade log present (probably fresh install)