docs/user_guides/tfm_user_guide.rst

#############################
Trusted Firmware M user guide
#############################
How to compile and run TF-M and example test application for CoreLink
SSE-200 subsystem on the MPS2 board and on the Fast Model(FVP).

Follow :doc:`build instruction <tfm_build_instruction>` to build the binaries.
Follow :doc:`secure boot <tfm_secure_boot>` to build the binaries with or
without BL2 bootloader.

****************************************************************
Execute TF-M example and regression tests on MPS2 boards and FVP
****************************************************************
The BL2 bootloader and TF-M example application and tests run correctly on
SMM-SSE-200 for MPS2 (AN521) and on the Fixed Virtual Platform model
FVP_MPS2_AEMv8M version 11.2.23.

To run the example code on FVP_MPS2_AEMv8M
==========================================
Using FVP_MPS2_AEMv8M provided by DS-5 v5.27.1.

.. Note::
    FVP reference guide can be found
    `here <https://developer.arm.com/docs/100966/latest>`__

Example application and regression tests without BL2 bootloader
---------------------------------------------------------------
Add ``tfm_s.axf`` and ``tfm_ns.axf`` to symbol files in Debug Configuration
menu.

.. code-block:: bash

    <DS5_PATH>/sw/models/bin/FVP_MPS2_AEMv8M  \
    --parameter fvp_mps2.platform_type=2 \
    --parameter cpu0.baseline=0 \
    --parameter cpu0.INITVTOR_S=0x10000000 \
    --parameter cpu0.semihosting-enable=0 \
    --parameter fvp_mps2.DISABLE_GATING=0 \
    --parameter fvp_mps2.telnetterminal0.start_telnet=1 \
    --parameter fvp_mps2.telnetterminal1.start_telnet=0 \
    --parameter fvp_mps2.telnetterminal2.start_telnet=0 \
    --parameter fvp_mps2.telnetterminal0.quiet=0 \
    --parameter fvp_mps2.telnetterminal1.quiet=1 \
    --parameter fvp_mps2.telnetterminal2.quiet=1 \
    --application cpu0=<build_dir>/install/outputs/fvp/tfm_s.axf \
    --data cpu0=<build_dir>/install/outputs/fvp/tfm_ns.bin@0x00100000

Example application and regression tests with BL2 bootloader
------------------------------------------------------------
To test TF-M with bootloader, one must apply the following changes:

- Add ``mcuboot.axf`` to symbol files in DS-5 in Debug Configuration
  menu.
- Replace the last two lines of the previous command with this:

.. code-block:: bash

    --application cpu0=<build_dir>/install/outputs/fvp/mcuboot.axf \
    --data cpu0=<build_dir>/install/outputs/fvp/tfm_s_ns_signed.bin@0x10080000

Test software upgrade with BL2 bootloader
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
BL2 bootloader is mandatory to test software update. Furthermore two TF-M blob
must be built. Outputs of example application and regression test can be used to
test it. Load output of example application to slot 0 (0x10080000) and output of
regression test to slot 1 (0x10180000). Add the following line to the end of
the previous chapter:

.. code-block:: bash

    --data cpu0=<build_dir>/install/outputs/fvp/tfm_s_ns_signed.bin@0x10180000

To run the example code on SSE 200 FPGA on MPS2 board
=====================================================
FPGA image is available to download
`here <https://developer.arm.com/products/system-design/development-boards/cortex-m-prototyping-systems/mps2>`__

To run BL2 bootloader and TF-M example application and tests in the MPS2 board,
it is required to have SMM-SSE-200 for MPS2 (AN521) image in the MPS2 board SD
card. The image should be located in
``<MPS2 device name>/MB/HBI0263<board revision letter>/AN521``

The MPS2 board tested is HBI0263C referred also as MPS2+.

.. Warning::

    If you change the exe names, MPS2 expects file names in 8.3 format.

Example application
-------------------
#. Copy ``mcuboot.bin`` and ``tfm_sign.bin`` files from
   ``<build_dir>/install/outputs/AN521/`` to
   ``<MPS2 device name>/SOFTWARE/``
#. Open ``<MPS2 device name>/MB/HBI0263C/AN521/images.txt``
#. Update the ``AN521/images.txt`` file as follows::

       TITLE: Versatile Express Images Configuration File
       [IMAGES]
       TOTALIMAGES: 2                     ;Number of Images (Max: 32)
       IMAGE0ADDRESS: 0x10000000
       IMAGE0FILE: \Software\mcuboot.bin  ; BL2 bootloader
       IMAGE1ADDRESS: 0x10080000
       IMAGE1FILE: \Software\tfm_sign.bin ; TF-M example application binary blob

#. Close ``<MPS2 device name>/MB/HBI0263C/AN521/images.txt``
#. Unmount/eject the ``<MPS2 device name>`` unit
#. Reset the board to execute the TF-M example application
#. After completing the procedure you should be able to visualize on the serial
   port (baud 115200 8n1) the following messages::

    [INF] Starting bootloader
    [INF] Image 0: magic=good, copy_done=0xff, image_ok=0xff
    [INF] Scratch: magic=bad, copy_done=0x5, image_ok=0xcf
    [INF] Boot source: slot 0
    [INF] Swap type: none
    [INF] Bootloader chainload address offset: 0x80000
    [INF] Jumping to the first image slot
    [Sec Thread] Secure image initializing!

Regression tests
----------------
After completing the procedure you should be able to visualize on the serial
port (baud 115200 8n1) the following messages::

    [INF] Starting bootloader
    [INF] Image 0: magic=good, copy_done=0xff, image_ok=0xff
    [INF] Scratch: magic=bad, copy_done=0x5, image_ok=0xcf
    [INF] Boot source: slot 0
    [INF] Swap type: none
    [INF] Bootloader chainload address offset: 0x80000
    [INF] Jumping to the first image slot
    [Sec Thread] Secure image initializing!
    
    #### Execute test suites for the secure storage service ####
    Running Test Suite SST secure interface tests (TFM_SST_TEST_2XXX)...
    
    > Executing 'TFM_SST_TEST_2001'
      Description: 'Create interface'
      TEST PASSED!
    > Executing 'TFM_SST_TEST_2002'
      Description: 'Get handle interface (DEPRECATED)'
    This test is DEPRECATED and the test execution was SKIPPED
      TEST PASSED!
    > Executing 'TFM_SST_TEST_2003'
      Description: 'Get handle with null handle pointer (DEPRECATED)'
    This test is DEPRECATED and the test execution was SKIPPED
      TEST PASSED!
    > Executing 'TFM_SST_TEST_2004'
      Description: 'Write interface'
      TEST PASSED!
    > Executing 'TFM_SST_TEST_2005'
      Description: 'Read interface'
    ....

.. Note::

    SST reliability tests take a few minutes to run on the MPS2.

Example application without BL2 bootloader
------------------------------------------
#. Copy ``tfm_s.bin`` and ``tfm_ns.bin`` files from
   ``<build_dir>/install/outputs/AN521/`` to
   ``<MPS2 device name>/SOFTWARE/``
#. Open ``<MPS2 device name>/MB/HBI0263C/AN521/images.txt``
#. Update the ``AN521/images.txt`` file as follows::

       TITLE: Versatile Express Images Configuration File
       [IMAGES]
       TOTALIMAGES: 2                   ;Number of Images (Max: 32)
       IMAGE0ADDRESS: 0x10000000
       IMAGE0FILE: \Software\tfm_s.bin  ; Secure code
       IMAGE1ADDRESS: 0x00100000
       IMAGE1FILE: \Software\tfm_ns.bin ; Non-secure code

#. Close ``<MPS2 device name>/MB/HBI0263C/AN521/images.txt``
#. Unmount/eject the ``<MPS2 device name>`` unit
#. Reset the board to execute the TF-M example application
#. After completing the procedure you should be able to visualize on the serial
   port (baud 115200 8n1) the following messages::

    [Sec Thread] Secure image initializing!

Regression tests without BL2 bootloader
---------------------------------------
After completing the procedure you should be able to visualize on the serial
port (baud 115200 8n1) the following messages::

    [Sec Thread] Secure image initializing!
    
    #### Execute test suites for the secure storage service ####
    Running Test Suite SST secure interface tests (TFM_SST_TEST_2XXX)...
    
    > Executing 'TFM_SST_TEST_2001'
      Description: 'Create interface'
      TEST PASSED!
    > Executing 'TFM_SST_TEST_2002'
      Description: 'Get handle interface (DEPRECATED)'
    This test is DEPRECATED and the test execution was SKIPPED
      TEST PASSED!
    > Executing 'TFM_SST_TEST_2003'
      Description: 'Get handle with null handle pointer (DEPRECATED)'
    This test is DEPRECATED and the test execution was SKIPPED
      TEST PASSED!
    > Executing 'TFM_SST_TEST_2004'
      Description: 'Write interface'
      TEST PASSED!
    > Executing 'TFM_SST_TEST_2005'
      Description: 'Read interface'
    ....

*******************************************************************
Execute TF-M example and regression tests on Musca test chip boards
*******************************************************************
.. Note::

    Before executing any images on Musca-B1 board, please check the
    :doc:`target platform readme </platform/ext/target/musca_b1/readme>`
    to have the correct setup.

Example application with BL2 bootloader
=======================================

#. Create a unified hex file comprising of both mcuboot and tfm_sign
   binary

-  For Musca-A1

   - Windows::
   
      srec_cat.exe bl2\ext\mcuboot\mcuboot.bin -Binary -offset 0x200000 tfm_sign.bin -Binary -offset 0x220000 -o tfm.hex -Intel
   
   - Linux::
   
      srec_cat bl2/ext/mcuboot/mcuboot.bin -Binary -offset 0x200000 tfm_sign.bin -Binary -offset 0x220000 -o tfm.hex -Intel

-  For Musca-B1

   - Windows::
   
      srec_cat.exe bl2\ext\mcuboot\mcuboot.bin -Binary -offset 0xA000000 tfm_sign.bin -Binary -offset 0xA020000 -o tfm.hex -Intel
   
   - Linux::
   
      srec_cat bl2/ext/mcuboot/mcuboot.bin -Binary -offset 0xA000000 tfm_sign.bin -Binary -offset 0xA020000 -o tfm.hex -Intel

#. Plug the Musca board into your computer. The board should appear as a USB
   drive
#. Copy ``tfm.hex`` to the USB drive
#. Reset the board to execute the TF-M example application
#. After completing the procedure you should be able to see on the UART0
   (baud 115200 8n1) the following messages::

    [INF] Starting bootloader
    [INF] Image 0: magic=good, copy_done=0xff, image_ok=0xff
    [INF] Scratch: magic=bad, copy_done=0x5, image_ok=0xd9
    [INF] Boot source: slot 0
    [INF] Swap type: none
    [INF] Bootloader chainload address offset: 0x20000
    [INF] Jumping to the first image slot
    [Sec Thread] Secure image initializing!

Regression tests with BL2 bootloader
====================================
After completing the procedure you should see the following messages on the
UART0 (baud 115200 8n1)::

    [INF] Starting bootloader
    [INF] Image 0: magic=good, copy_done=0xff, image_ok=0xff
    [INF] Scratch: magic=bad, copy_done=0x5, image_ok=0x9
    [INF] Boot source: slot 0
    [INF] Swap type: none
    [INF] Bootloader chainload address offset: 0x20000
    [INF] Jumping to the first image slot
    [Sec Thread] Secure image initializing!
    
    #### Execute test suites for the secure storage service ####
    Running Test Suite SST secure interface tests (TFM_SST_TEST_2XXX)...
    > Executing 'TFM_SST_TEST_2001'
      Description: 'Create interface'
      TEST PASSED!
    > Executing 'TFM_SST_TEST_2002'
      Description: 'Get handle interface (DEPRECATED)'
    This test is DEPRECATED and the test execution was SKIPPED
      TEST PASSED!
    > Executing 'TFM_SST_TEST_2003'
      Description: 'Get handle with null handle pointer (DEPRECATED)'
    This test is DEPRECATED and the test execution was SKIPPED
      TEST PASSED!
    > Executing 'TFM_SST_TEST_2004'
      Description: 'Get attributes interface'
      TEST PASSED!
    > Executing 'TFM_SST_TEST_2005'
      Description: 'Get attributes with null attributes struct pointer'
    ....

Example application or regression tests on Musca-B1 without BL2 bootloader
==========================================================================

Follow the above procedures, but create a unified hex file out of ``tfm_s.bin``
and ``tfm_ns.bin``:

- Windows::

    srec_cat.exe app\secure_fw\tfm_s.bin -Binary -offset 0xA000000 app\tfm_ns.bin -Binary -offset 0xA060000 -o tfm.hex -Intel

- Linux::

    srec_cat app/secure_fw/tfm_s.bin -Binary -offset 0xA000000 app/tfm_ns.bin -Binary -offset 0xA060000 -o tfm.hex -Intel

Firmware upgrade and image validation with BL2 bootloader
=========================================================
High level operation of BL2 bootloader and instructions for testing firmware
upgrade is described in :doc:`secure boot <tfm_secure_boot>`.

--------------

*Copyright (c) 2017-2019, Arm Limited. All rights reserved.*