52 lines
2.3 KiB
ReStructuredText
52 lines
2.3 KiB
ReStructuredText
.. _tfm_secure_partition:
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TF-M Secure Partition Sample
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############################
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Overview
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********
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A Secure Partition is an isolated module that resides in TF-M. It exposes a number of functions or "secure services" to other partitions and/or to the non-secure firmware.
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TF-M already contains standard partitions such as crypto, protected_storage, or firmware_update, but it's also possible to create your own partitions.
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This sample creates a dummy secure partition and secure service for TF-M and instructs the TF-M build system to build it into the secure firmware.
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The dummy secure service is then called in the main file (in the non-secure firmware).
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This dummy partition has a single secure service, which can index one of 5 dummy secrets inside the partition, and retrieve a hash of the secret.
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The partition is located in the ``dummy_partition`` directory. It contains the partition sources, build files and build configuration files.
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The partition is built by the TF-M build system, refer to :ref:`tfm_build_system` for more details.
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For more information on how to add custom secure partitions refer to TF-M's guide: https://tf-m-user-guide.trustedfirmware.org/docs/integration_guide/services/tfm_secure_partition_addition.html
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When adapting this partition for your own purposes, please change all occurences of "dummy_partition", "DUMMY_PARTITION", "dp", and "DP" to your own partition name.
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Also, look through both the secure and non-secure CMakeLists.txt file and make relevant changes, as well as the yaml files inside "partition".
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Building and Running
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********************
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This sample can be built with or without CONFIG_TFM_IPC, since it contains code for both.
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On Target
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=========
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Refer to :ref:`tfm_ipc` for detailed instructions.
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On QEMU:
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========
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Refer to :ref:`tfm_ipc` for detailed instructions.
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Sample Output
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=============
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.. code-block:: console
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*** Booting Zephyr OS build v2.6.0-rc1-ncs1-1-g58213e91eef1 ***
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Digest: be45cb2605bf36bebde684841a28f0fd43c69850a3dce5fedba69928ee3a8991
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Digest: 1452c8f04245d355722fdbfb03c69bcfd380b7dff911a3e425013397251f6a4e
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Digest: d3b4349010abb691b9584b6fd6b41ec54596ef7b98d853fb4f5bfa690f50f222
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Digest: 5afbcfede855ca834ff5b4e8a44a32206a51381f3cf52f5001a3241f017ac41a
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Digest: 983318380c325099da63de2e7ca57c1630693b28b4754e08817533295dbfcfbb
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Status: -135
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