On Wed, 2025-09-17 at 17:17 +0100, Daniel P. Berrangé wrote: > We shouldn't send any size info to the guest if the hsot backend > does not have it available.
Does that mean sending 0x0, or not sending anything at all? The later is tricky, because for non-multiport devices it's only really possible by not offering the feature bit, but we don't know upfront whether the size command will be used.