To have your program set the system IPL mode to secure, use the API SetIPLModeSecure (use the uppercase and lowercase shown).
To use this command:
This API returns the following information:
| Bytes 0 and 1 | Bytes 2 and 3 | Bytes 4 through 4+N |
|---|---|---|
| 16-bit return code 0 => Command successful 1 => Command unsuccessful 2 => Key not inserted |
16-bit additional data length N = 0 | Not applicable |