For communication at run time - 2024.2 English - UG1304

Versal Adaptive SoC System Software Developers Guide (UG1304)

Document ID
UG1304
Release Date
2024-12-13
Version
2024.2 English
  • On the master SLR,
    • When security critical message is ready to be sent for SSLRn, XPlm_SsitCommSendMessage increments IV of SSLRn by 2 and encrypts message with USER_KEY and IV of SSLRn as mentioned in Protocol 3.
    • XPlm_SsitCommReceiveMessage decrypts response with USER_KEY and IV+1 of SSLRn.
  • On the Slave SLR,
    • The received message event gets processed in XPlmi_SsitMsgEventHandler.
    • XPlm_SsitCommReceiveMessage API receives and decrypts the message with USER_KEY and IV+1 and processes it.
    • Increments IV by 2.
    • Prepares response and encrypts with USER_KEY and IV and sends using XPlm_SsitCommSendMessage API.