Am 17.06.2011 10:57, schrieb Stefan Hajnoczi: > On Fri, Jun 17, 2011 at 9:36 AM, Kevin Wolf <kw...@redhat.com> wrote: >> By the way, we'll get problems with the colon syntax. Without -blockdev >> we'll have to invent a new syntax, maybe with brackets: >> >> blkstream:[nbd:localhost]:out.qcow2 > > Embedding block driver options in filenames is getting worse as time > goes on.
Well, yes. We need -blockdev for a sane way to express complex relations between BlockDriverStates. But then, we'll also want to have convenient shortcuts for manual use, and that may be something like the existing colon syntax. I really don't feel like typing three full -blockdev parameters for qcow2 on blockdbg on raw. > I recently tried to refactor and eliminate > QEMUOptionParameter so that we only use QemuOpts instead of two > different option APIs. Part of that involves keeping separate > per-block driver (i.e. -blockdev) options lists, which would allow us > to pass proper options to block drivers instead of embedding them in > the filename. Aren't these completely independent things? QEMUOptionParameter is used for image creation, whereas filenames are used for opening images. I think you can change one without changing the other. Kevin
