Another version of the patch, taking into account more of Avi's comments. This one was tested the same way as the previous one, by doing all the combinations of new and old QEMU versions; the results were the same as last time: old -> old: Bug old -> new: Sane values, but not transferred over the wire new -> old: Graceful fail, version mismatch new -> new: Fixed values, taken from the wire Signed-off-by: Chris Lalancette