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review.trustedfirmware.org / rust-spmc / arm-psci / 3438409fc1862b640b0cfee2f97d805f69efea7b
commit3438409fc1862b640b0cfee2f97d805f69efea7b[log] [tgz]
authorImre Kis <imre.kis@arm.com>Thu Mar 20 14:34:52 2025 +0100
committerImre Kis <imre.kis@arm.com>Mon Mar 24 12:41:30 2025 +0100
tree959b70084998ba2c86ce571b5ae199774c2464de
parenta2a7e5aab37c68430fcdd930d019336565456e88 [diff]
Add Mpidr::from_register_value()

Add a function to create an Mpidr instance from an MPIDR_EL1 format
value, allowing non-affinity fields to be set as well.

Signed-off-by: Imre Kis <imre.kis@arm.com>
Change-Id: I827eb729eae6d53ba68f6d76c746a20127b38132
1 file changed
tree: 959b70084998ba2c86ce571b5ae199774c2464de
  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