pldm/docs/bios_implementation.md

1 # BIOS Support
3 Redfish supports the BIOS Attribute Registry, which provides users with a list
4 of BIOS attributes supported in the BIOS configuration. To incorporate BIOS
6 Base BIOS Table. PLDM populates the Base BIOS Table for the BIOS Config Manager
7 based on BIOS JSON files. BIOS functionality is integrated into PLDM according
9 [PLDM BIOS Specification](https://www.dmtf.org/sites/default/files/standards/documents/DSP0247_1.0.…
10 BIOS attributes, also referred to as BIOS parameters or configuration settings,
13 [BIOS JSON file](https://github.com/openbmc/pldm/tree/master/oem/ibm/configurations/bios/com.ibm.Ha…
15 [Base BIOS Table](https://github.com/openbmc/phosphor-dbus-interfaces/blob/master/yaml/xyz/openbmc_…
16 hosted by [BIOS Config Manager](https://github.com/openbmc/bios-settings-mgr).
18 [DesignDoc](https://github.com/openbmc/docs/blob/master/designs/remote-bios-configuration.md).
20 [BIOS Attribute registry](https://redfish.dmtf.org/schemas/v1/AttributeRegistry.v1_3_8.json),
21 which provides users with the list of BIOS attributes supported in the BIOS
22 configuration. The BIOS Attribute registry data is supposed to be derived from
23 [Base BIOS Table](https://github.com/openbmc/phosphor-dbus-interfaces/blob/master/yaml/xyz/openbmc_…
24 PLDM populates the Base BIOS Table for BIOS Config Manager based on BIOS Json
29 [PLDM BIOS Specification](https://www.dmtf.org/sites/default/files/standards/documents/DSP0247_1.0.…
30 Those BIOS tables are exchanged with remote PLDM terminus using the
32 `bios attribute json files are kept under OEM`
33 [Path](https://github.com/openbmc/pldm/tree/master/oem). BIOS json configuration
38 [PLDM BIOS Specification](https://www.dmtf.org/sites/default/files/standards/documents/DSP0247_1.0.…
59 [PLDM BIOS Specification](https://www.dmtf.org/sites/default/files/standards/documents/DSP0247_1.0.…
68 …  "An array of character strings of variable to indicate the possible values of the BIOS attribute"
80 [PLDM BIOS Specification](https://www.dmtf.org/sites/default/files/standards/documents/DSP0247_1.0.…
100 As PLDM BIOS Attributes may differ across platforms and systems, supporting
101 system-specific BIOS attributes is crucial. To achieve this, BIOS JSON files are
109 dynamically created by the Entity Manager. Consequently, BIOS tables are lazily
112 To enable system-specific BIOS attribute support within PLDM, the meson option
113 `system-specific-bios-json` can be utilized. With `system-specific-bios-json`
114 option `enabled` BIOS JSON files specific to the system type are fetched during