The return code specifies the general result of the callable service. Appendix A. ICSF and TSS Return and Reason Codes lists the return codes.

The reason code specifies the result of the callable service that is returned to the application program. Each return code has different reason codes that indicate specific processing problems. Appendix A. ICSF and TSS Return and Reason Codes lists the reason codes.

The length of the data that is passed to the installation exit. The length can be from X'00000000' to X'7FFFFFFF' (2 gigabytes). The data is identified in the exit_data parameter.

The data that is passed to the installation exit.

Cryptographic module to which this request is directed. Value is 0 or 1.

Length of request message in the request field. The maximum length allowed is 1024 bytes.

PKSC command or query request for the target cryptographic module. This is the complete architected command or query for the cryptographic module to process.

Area where the PKSC response from the target cryptographic module is returned to the caller. The area returned can be up to 512 bytes.