The hypervisor support matrix [1] lists a lot feaures. Some of them are explained and declared mandatory/optional in [2]. After reading these wiki pages, grepping the tempest and unit tests and searching in the mailing lists via markmail [3] I still cannot figure out what the feature "service control" is. What is this? How does a hypervisor verify that it supports this? [1] https://wiki.openstack.org/wiki/HypervisorSupportMatrix [2] https://wiki.openstack.org/wiki/HypervisorSupportMatrix/Requirements [3] http://openstack.markmail.org/ Regards, Markus Zoeller IRC: markus_z