Hi Peter, > + - The optional ``iothreads`` sub-element allows specifying multiple IOThreads > + via the ``iothread`` sub-element with attribute ``id`` the disk will use > + for I/O operations. Optionally the ``iothread`` element can have multiple > + ``queue`` subelements specifying that given iothread should be used to > + handle given queues. :since:`Since XXXXXX`. Although this says that the ``queue`` sub-elements are optional, it may be clearer to add another sentence that explains the device will automatically assign virtqueues to the given ``iothread`` sub-elements when ``queue`` is not given. That answers the question of "what is the behavior of omitting ``queue``?". > + <driver name='qemu' queues='2'> > + <iothreads> > + <iothread id='1'> > + <queue id='1'/> > + </iothread> > + <iothread id='2'> > + <queue id='1'/> > + </iothread> Each queue can only be assigned to 1 IOThread, so <queue id='1'/> cannot be assigned to multiple IOThreads. Thank you, Stefan
