Imposible completar la instalación: ''_OsVariant' object has no attribute 'broken_x2apic''

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 88, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/create.py", line 2271, in _do_async_install
    guest.start_install(meter=meter)
  File "/usr/share/virt-manager/virtinst/guest.py", line 441, in start_install
    self.set_install_defaults()
  File "/usr/share/virt-manager/virtinst/guest.py", line 545, in set_install_defaults
    self._set_defaults()
  File "/usr/share/virt-manager/virtinst/guest.py", line 666, in _set_defaults
    self._set_cpu_defaults()
  File "/usr/share/virt-manager/virtinst/guest.py", line 784, in _set_cpu_defaults
    if self._os_object.broken_x2apic():
AttributeError: '_OsVariant' object has no attribute 'broken_x2apic'