
Existing defaults are setup for tcp, and set ca_file to an empty string. 'If you set this to an empty string, then no trusted CA certificate is loaded.' libvirt may complain 'unsupported configuration: No server certificate path set to match server key', as such tls should also be explicitly set to 0. Change-Id: I49c64808cb236dab1d9fa2e699d0a2f2fc54cc99