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
This policy rejects deprecated input, and thus permits "testing the future". Implement it for QMP command arguments: reject commands with deprecated ones. Example: when QEMU is run with -compat deprecated-input=reject, then {"execute": "eject", "arguments": {"device": "cd"}} fails like this {"error": {"class": "GenericError", "desc": "Deprecated parameter 'device' disabled by policy"}} When the deprecated parameter is removed, the error will change to {"error": {"class": "GenericError", "desc": "Parameter 'device' is unexpected"}} Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20210318155519.1224118-11-armbru@redhat.com>