Gitiles
Code Review Sign In
gerrit.openbmc.org / openbmc / openpower-vpd-parser / refs/heads/master
commit8dfa255465de5efa8bcbb8e21623bb9928a65371[log] [tgz]
authorChanchal Tiwari <chanchaltiwari70021@gmail.com>Fri Jan 23 11:15:32 2026 -0600
committerSunnySrivastava <sunnsr25@in.ibm.com>Fri Jan 30 15:12:19 2026 +0000
tree741d5244ed218b68c3fe59e843fa7e830372cbdf
parent0970c38e23a01cf146047837f5f430928df70286 [diff]
BIOS JSON parsing and refactor Backup/Restore API

Updated IbmBiosHandler to extract the BIOS configuration file path from
The System Configuration JSON. Additionally, updated the
backUpOrRestoreBiosAttributes API to align with these changes,ensuring
BIOS attributes are processed correctly based on the system-specific
configuration and bios json.

Change-Id: I9e97733b5c1440e8fb346ceb3fe7cb8328fb5684
Signed-off-by: Chanchal Tiwari <chanchaltiwari70021@gmail.com>
3 files changed
tree: 741d5244ed218b68c3fe59e843fa7e830372cbdf
  1. configuration/
  2. docs/
  3. service_files/
  4. test/
  5. vpd-manager/
  6. vpd-tool/
  7. vpdecc/
  8. wait-vpd-parser/
  9. .clang-format
  10. .gitignore
  11. LICENSE
  12. meson.build
  13. meson.options
  14. OWNERS
  15. README.md
README.md

Overview

This repository hosts code for OpenPower and IBM IPZ format VPD parsers. Both OpenPower VPD and IPZ VPD formats are structured binaries that consist of records and keywords. A record is a collection of multiple keywords. More information about the format can be found at a broken link.

The repository consists of two distinct applications, which are:

OpenPower VPD Parser

This is a build-time YAML driven application that parses the OpenPower VPD format and uses the YAML configuration (see extra-properties-example.yaml and writefru.yaml) to determine:

  • The supported records and keywords.
  • How VPD data is translated into D-Bus interfaces and properties.

The application instance must be passed in the file path to the VPD (this can, for example, be a sysfs path exposed by the EEPROM device driver) and also the D-Bus object path(s) that EEPROM data needs to be published under.

IBM VPD Parser

This parser is can be built by passing in the --enable-ibm-parser configure option. This parser differs from the OpenPower VPD parser in the following ways:

  • It parses all the records and keywords from the VPD, including large keywords (Keywords that begin with a # and are > 255 bytes in length).
  • It relies on a runtime JSON configuration (see examples/inventory.json) to determine the D-Bus object path(s) that hold interfaces and properties representing the VPD for a given VPD file path.

Making the application runtime JSON driven allows us to support multiple systems (with different FRU configurations) to be supported in a single code image as well as making the application more flexible for future improvements.

TODOs and Future Improvements

  1. The long-term goal is to completely do away with the build time YAML driven configurations and instead reconcile the OpenPower VPD parser and the IBM VPD parser applications into a single runtime JSON driven application.
  2. Add details to the README on how to configure and build the application.
  3. More JSON documentation.
  4. Support for more IBM VPD formats.
  5. VPD Write and tool documentation.