# Intel Firmware Support Package (FSP)-specific documentation

This section contains documentation about Intel-FSP in public domain.

## Open Source Intel FSP specification

* [About Intel FSP](https://firmware.intel.com/learn/fsp/about-intel-fsp)

* [FSP Specification 1.0](https://www.intel.in/content/dam/www/public/us/en/documents/technical-specifications/fsp-architecture-spec.pdf)

* [FSP Specification 1.1](https://www.intel.com/content/dam/www/public/us/en/documents/technical-specifications/fsp-architecture-spec-v1-1.pdf)

* [FSP Specification 2.0](https://www.intel.com/content/dam/www/public/us/en/documents/technical-specifications/fsp-architecture-spec-v2.pdf)

## Additional Features in FSP 2.1 specification

- [PPI](ppi/ppi.md)