On Fri, Apr 10, Olaf Hering wrote: > How is new code supposed to wait for backend changes? > > Right now there are two APIs for that: > - libxl__wait_for_backend loops for a while until it returns an error. > - libxl__ev_devstate_wait registers a watch and a timer. > > > In case of pvscsi there are three variants: > - new, can use libxl__wait_device_connection > - reconfigure, can use both of the above > - remove, may use DEFINE_DEVICE_REMOVE and its > libxl__initiate_device_remove > > The reconfigure case has to wait for various states, depending on the > state before the reconfiguration.
For the time being I used also polling via libxl__wait_for_backend. Doing event driven reconfigure can be implemented, but only with quite some effort. Olaf _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
