An SRB cannot own a hiperspace. Through the DSPSERV CREATE macro, a program in supervisor state or PSW key 0 - 7 can assign ownership of a hiperspace to a TCB. The owning TCB must reside in the SRB's home or primary address space.

When you use the DSPSERV CREATE macro to create the hiperspace and assign ownership, you must identify the TCB through the TTOKEN parameter. A TTOKEN identifies a TCB. Unlike TCB addresses, TTOKENs are unique within the IPL; the system does not assign this same TTOKEN to any other TCB until the next IPL. If you know the TCB address, but not the TTOKEN for the task that is to receive ownership, use the TCBTOKEN macro. The TCBTOKEN macro accepts the TCB address and returns a TTOKEN. You then use this TTOKEN in the DSPSERV CREATE macro. For more information about TTOKENs, see Obtaining the TCB identifier for a task (ttoken).

When an SRB terminates, it can delete any hiperspaces it created. Use the TTOKEN parameter on the DSPSERV DELETE macro to specify the address of the TTOKEN of the hiperspace owner.