MIPR environment

The MIPR receives control running under the unit of work that invoked the CSVINFO macro, in the following environment:

Environment requirements:  
Minimum authorization: Problem state and any PSW key.
Dispatchable unit mode: Task or SRB
Cross memory mode: PASN=HASN=SASN
AMODE: 31-bit
ASC mode: Primary
Interrupt status: Enabled for I/O and external interrupts
Control parameters: Control parameters must be in the primary address space.