Address space authorization

The types of PC routines the entry table will define determine whether the service provider needs PT and SSAR authority to the user's address space. PT and SSAR authority are needed if either or both of the following conditions are true:

The entry table defines a basic PC routine that causes a space switch
The entry table defines a stacking PC routine for which the ETDEF macro specifies SASN=OLD.

If the service provider needs PT or SSAR authority, it must be obtained before issuing the ETCON macro. The service provider can obtain PT and SSAR authority to all address spaces by issuing AXSET with an AX value of 1. If the correct authorization is not established, the ETCON macro will fail.