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review.trustedfirmware.org / rust-spmc / arm-psci / 90e9d83b83f0a7566f334f7f61168878a8f1df02
commit90e9d83b83f0a7566f334f7f61168878a8f1df02[log] [tgz]
authorImre Kis <imre.kis@arm.com>Thu Feb 13 13:42:51 2025 +0100
committerImre Kis <imre.kis@arm.com>Wed Mar 05 14:10:07 2025 +0100
tree1736979f26a9d842f96d0f9f2ace122305e467ee
parenta3376911223b599574b32ba5d6c276d6cb9035e8 [diff]
Initial version of the PSCI crate

Implement functions for parsing and building register arguments for PSCI
calls along all the necessary types.

Signed-off-by: Imre Kis <imre.kis@arm.com>
Change-Id: Ib763a1be81575cb53669ac69e532a0bd69883141
4 files changed
tree: 1736979f26a9d842f96d0f9f2ace122305e467ee
  1. src/
  2. .gitignore
  3. Cargo.lock
  4. Cargo.toml
  5. dco.txt
  6. LICENSE-APACHE
  7. LICENSE-MIT
  8. README.md
README.md

Arm Power State Coordination Interface (PSCI) library

This crate aims to offer functions and user-friendly types for parsing and constructing arguments of Arm Power State Coordination Interface (PSCI) calls. This functionality can be beneficial for both firmware and OS components.

However, doing the actual SMC/HVC/ERET calls, or implementing power management logic is beyond the scope of this crate.

Implemented features

  • Handling all PSCI 1.3 mandatory and optional functions
  • Handling both 32-bit and 64-bit call formats
  • Dedicated types for common PSCI call arguments
  • Unit tests

Limitations

  • The implementation does not handle pre-1.0 format suspend power state (see 5.4.2.1 Original format)

License

The project is MIT and Apache-2.0 dual licensed, see LICENSE-APACHE and LICENSE-MIT.

Maintainers

arm-psci is a trustedfirmware.org maintained project. All contributions are ultimately merged by the maintainers listed below.

Contributing

Please follow the directions of the Trusted Firmware Processes.

Contributions are handled through review.trustedfirmware.org.

Reporting Security Issues

Please follow the directions of the Trusted Firmware Security Center.

Copyright 2025 Arm Limited and/or its affiliates open-source-office@arm.com