Add a dummy platform token to RMMD and return it on request. The platform token is requested with an SMC with the following parameters: * Fid (0xC40001B3). * Platform token PA (the platform token is copied at this address by the monitor). The challenge object needs to be passed by the caller in this buffer. * Platform token len. * Challenge object len. When calling the SMC, the platform token buffer received by EL3 contains the challenge object. It is not used on the FVP and is only printed to the log. Signed-off-by: Mate Toth-Pal <mate.toth-pal@arm.com> Signed-off-by: Subhasish Ghosh <subhasish.ghosh@arm.com> Change-Id: I8b2f1d54426c04e76d7a3baa6b0fbc40b0116348 |
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readme.rst |
readme.rst
Trusted Firmware-A
Trusted Firmware-A (TF-A) is a reference implementation of secure world software for Arm A-Profile architectures (Armv8-A and Armv7-A), including an Exception Level 3 (EL3) Secure Monitor. It provides a suitable starting point for productization of secure world boot and runtime firmware, in either the AArch32 or AArch64 execution states.
TF-A implements Arm interface standards, including:
- Power State Coordination Interface (PSCI)
- Trusted Board Boot Requirements CLIENT (TBBR-CLIENT)
- SMC Calling Convention
- System Control and Management Interface (SCMI)
- Software Delegated Exception Interface (SDEI)
The code is designed to be portable and reusable across hardware platforms and software models that are based on the Armv8-A and Armv7-A architectures.
In collaboration with interested parties, we will continue to enhance TF-A with reference implementations of Arm standards to benefit developers working with Armv7-A and Armv8-A TrustZone technology.
Users are encouraged to do their own security validation, including penetration testing, on any secure world code derived from TF-A.
More Info and Documentation
To find out more about Trusted Firmware-A, please view the full documentation that is available through trustedfirmware.org.
Copyright (c) 2013-2019, Arm Limited and Contributors. All rights reserved.