On 2012-03-05 15:24, Avi Kivity wrote: >> Long-term, I'd like to cut out certain file descriptors from the main >> loop and process them completely in separate threads (for separate >> locking, prioritization etc.). Dunno how NBD works, but maybe it should >> be reworked like this already. > > Ideally qemu_set_fd_handler2() should be made thread local, and each > device thread would run a copy of the main loop, just working on > different data.
qemu_set_fd_handler2 may not only be called over an iothread. Rather, we need an object and associated lock that is related to the io-path (i.e. frontend device + backend driver). That object has to be passed to services like qemu_set_fd_handler2. Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux
