vif interfaces allows the user to specify the domain that should run
the backend (also known as driver domain) using the 'backend'
parameter. This is not compatible with run_hotplug_scripts=1, since
libxl can only run the hotplug scripts from the Domain 0.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>