140d9cb3e7
Right now, the assumption is that the platform post-load hook takes care of measuring the image that just got loaded. This is how it's implemented on FVP. This patch moves the measurement into the generic code instead. load_auth_image() now calls plat_mboot_measure_image(), which is a new platform interface introduced in this patch to measure an image. This is called just after authenticating the image. Implement plat_mboot_measure_image() for the Arm FVP platform. The code is copied straight from the post-load hook. As a result, the FVP specific implementation of arm_bl2_plat_handle_post_image_load() is no longer needed. We can go back to using the Arm generic implementation of it. Change-Id: I7b4b8d28941a865e10af9d0eadaf2e4850942090 Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com> |
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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.