1Test Secure Payload (TSP) and Dispatcher (TSPD) 2=============================================== 3 4Building the Test Secure Payload 5-------------------------------- 6 7The TSP is coupled with a companion runtime service in the BL31 firmware, 8called the TSPD. Therefore, if you intend to use the TSP, the BL31 image 9must be recompiled as well. For more information on SPs and SPDs, see the 10:ref:`firmware_design_sel1_spd` section in the :ref:`Firmware Design`. 11 12First clean the TF-A build directory to get rid of any previous BL31 binary. 13Then to build the TSP image use: 14 15.. code:: shell 16 17 make PLAT=<platform> SPD=tspd all 18 19An additional boot loader binary file is created in the ``build`` directory: 20 21:: 22 23 build/<platform>/<build-type>/bl32.bin 24 25-------------- 26 27*Copyright (c) 2019, Arm Limited. All rights reserved.* 28