On 10/25/21 14:05, Kashyap Chamarthy wrote: > On Mon, Oct 25, 2021 at 07:25:24AM +0200, Markus Armbruster wrote: >> By convention, names starting with "x-" are experimental. The parts >> of external interfaces so named may be withdrawn or changed >> incompatibly in future releases. >> >> Drawback: promoting something from experimental to stable involves a >> name change. Client code needs to be updated. >> >> Moreover, the convention is not universally observed: >> >> * QOM type "input-barrier" has properties "x-origin", "y-origin". >> Looks accidental, but it's ABI since 4.2. >> >> * QOM types "memory-backend-file", "memory-backend-memfd", >> "memory-backend-ram", and "memory-backend-epc" have a property >> "x-use-canonical-path-for-ramblock-id" that is documented to be >> stable despite its name. > > Looks like there's another stable property with an "x-" prefix: > "x-remote-object", part of QOM type @RemoteObjectProperties. IIRC "x-remote-object" and RemoteObjectProperties are not stable.