47bf3ac31e
Right now, the measured boot driver is strongly coupled with the TCG event log driver. It would not be possible to push the measurements somewhere else, for instance to a physical TPM. To enable this latter use case, turn the driver's init and teardown functions into platform hooks. Call them bl2_plat_mboot_init()/finish(). This allows each platform to implement them appropriately, depending on the type of measured boot backend they use. For example, on a platform with a physical TPM, the plat_mboot_init() hook would startup the TPM and setup it underlying bus (e.g. SPI). Move the current implementation of the init and teardown function to the FVP platform layer. Finally move the conditional compilation logic (#if MEASURED_BOOT) out of bl2_main() to improve its readability. Provide a dummy implementation in the case measured boot is not included in the build. Change-Id: Ib6474cb5a9c1e3d4a30c7f228431b22d1a6e85e3 Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com> |
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| bl2 | ||
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| bl31 | ||
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| common | ||
| docs | ||
| drivers | ||
| fdts | ||
| include | ||
| lib | ||
| licenses | ||
| make_helpers | ||
| plat | ||
| services | ||
| tools | ||
| .checkpatch.conf | ||
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| commitlint.config.js | ||
| dco.txt | ||
| license.rst | ||
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| package.json | ||
| 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.