Related information

Here are some resources related to material in this guide:

Here are some resources related to topics in this guide:


  • OP-TEE is an example of a trusted execution environment. OP-TEE is an open-source project.
  • OP-TEE implements industry standard APIs that are developed and maintained by the Global Platform group. For information on these APIs, see the Global Platform Specification Library.
  • You can experiment with the Trusted Firmware and OP-TEE on the free Arm Foundation model, or on the FVP models that are provided with Arm Development Studio. Here is more information about building and running Arm Reference Platforms.

SMC Exceptions

The following specifications describe how SMCs are used to request services:

Trusted Board Boot Requirements

Trusted Firmware

  • Trusted Firmware: Find some example code for dealing with Arm System IP, like interconnects.


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