On Tue, Nov 08, 2016 at 12:17:38PM +0000, Marc-André Lureau wrote: > Yes, that's the trouble. At any time the Master may send a request and expects > an immediate reply. There is a race of getting a request from the Slave in the > middle with your proposed change. I'd rather avoid making the request > bidirectionnal if possible. (I proposed a second channel for Slave->Master > request in the past: https://lists.gnu.org/archive/html/qemu-devel/2016-04/ > msg00095.html)
I don't have an issue with this, but supporting commands from slave on the same channel shouldn't be too hard too, and it's less work for the management. -- MST