Difference between revisions of "OpenPOWER Firmware"
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== Components == | == Components == | ||
| − | * [[Self-Boot Engine|Self-Boot Engine]] (SBE) code - loads Hostboot | + | * [[Self-Boot Engine|Self-Boot Engine]] (SBE) code - loads Hostboot on a CPU core |
* [[Hostboot|Hostboot]] - loads Skiboot | * [[Hostboot|Hostboot]] - loads Skiboot | ||
* [[Skiboot|Skiboot]] - implements [[OpenPOWER Abstraction Layer|OpenPOWER Abstraction Layer]] (OPAL), loads Petitboot, and loads OCC code into the OCC core | * [[Skiboot|Skiboot]] - implements [[OpenPOWER Abstraction Layer|OpenPOWER Abstraction Layer]] (OPAL), loads Petitboot, and loads OCC code into the OCC core | ||
Revision as of 12:15, 21 February 2018
OpenPOWER Firmware is an open-source alternative to OpenFirmware and proprietary IBM firmware used on Power machines.[1] It is a general name for many separate pieces of software used to start recent Power Architecture chips made by IBM.[2]
OpenBMC is a separate project that creates firmware for the Baseboard Management Controller.
Components
- Self-Boot Engine (SBE) code - loads Hostboot on a CPU core
- Hostboot - loads Skiboot
- Skiboot - implements OpenPOWER Abstraction Layer (OPAL), loads Petitboot, and loads OCC code into the OCC core
- Petitboot - loads the operating system
- On-Chip Controller (OCC) code - controls thermal regulation on the chip
References
- ↑ Kerr, Jeremy. OpenPOWER: building an open-source software stack from bare metal. LCA 2015
- ↑ Smith, Stewart. Adventures in OpenPOWER Firmware. LCA 2016
