a86865ac42
In psci_setup.c psci_init_pwr_domain_node() takes an unsigned char as node_idx which limits it to initialising only the first 256 CPUs. As the calling function does not check for a limit of 256 I think this is a bug so change the unsigned char to uint16_t and change the cast from the calling site in populate_power_domain_tree(). Also update the non_cpu_pwr_domain_node structure lock_index to uint16_t and update the function signature for psci_lock_init() appropriately. Finally add a define PSCI_MAX_CPUS_INDEX to psci_private.h and add a CASSERT to psci_setup.c to make sure PLATFORM_CORE_COUNT cannot exceed the index value. Signed-off-by: Graeme Gregory <graeme@nuviainc.com> Change-Id: I9e26842277db7483fd698b46bbac62aa86e71b45 |
||
|---|---|---|
| bl1 | ||
| bl2 | ||
| bl2u | ||
| bl31 | ||
| bl32 | ||
| common | ||
| docs | ||
| drivers | ||
| fdts | ||
| include | ||
| lib | ||
| make_helpers | ||
| plat | ||
| services | ||
| tools | ||
| .checkpatch.conf | ||
| .editorconfig | ||
| .gitignore | ||
| .gitreview | ||
| Makefile | ||
| dco.txt | ||
| license.rst | ||
| 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.