OP-TEE: ABI

⚠️ The code is based on: https://gitlab.com/riseproject/riscv-optee/optee_os/-/tree/dev-optee-mpxy

Commit ID: 75df9ba41a404aec897399ead0ff0aebcbff48ca

• std_abi_entry()
  • If args->a0:
    • OPTEE_ABI_CALL_WITH_ARG or OPTEE_ABI_CALL_WITH_RPC_ARG:
      • std_entry_with_parg()
        • call_entry_std()
          • tee_entry_std()
            • __tee_entry_std()
    • OPTEE_ABI_CALL_WITH_REGD_ARG:
      • std_entry_with_regd_arg()
• __tee_entry_std()
  • Call thread_set_foreign_intr() to enable all foreign interrupts.
  • If arg->cmd:
    • OPTEE_MSG_CMD_OPEN_SESSION:
      • entry_open_session()
    • OPTEE_MSG_CMD_CLOSE_SESSION:
      • entry_close_session()
    • OPTEE_MSG_CMD_INVOKE_COMMAND:
      • entry_invoke_command()
    • OPTEE_MSG_CMD_CANCEL:
      • entry_cancel()
    • OPTEE_MSG_CMD_REGISTER_SHM:
      • register_shm()
    • OPTEE_MSG_CMD_UNREGISTER_SHM:
      • unregister_shm()
    • …