Remote BIOS Configuration via BMC
Overview
Provides ability for the user to view and modify the
BIOS setup configuration parameters remotely via BMC at any Host state.
Modifications to the parameters take place upon the next system reboot or
immediate based on the host firmware.
Please refer https://gerrit.openbmc-project.xyz/c/openbmc/docs/+/29320

Remote BIOS Configuration (RBC) service exposes D-Bus methods for
BIOS settings management operations.

RBC Manager Interface
xyz.openbmc_project.BIOSConfigManager provides following methods, properties.

Object Path : /xyz/openbmc_project/bios_config/manager0

xyz.openbmc_project.BIOSConfigManager

methods:
SetAttribute -To set the particular BIOS attribute  with new value.
GetAttribute -To get the bios attribute current and pending values.
GetPendingAttributes -To get all pending bios Atrributes list.
SetPendingAttributes -To set all pending bios Atrributes list.


Properites:
ResetBIOSSettings  - To reset the BIOS settings based on the Reset Flag.
AllBaseAttributes-To store all bios attributes details.

Signals:
PendingAttributesCreated - Signal sent out, when Pending attributes list created.

PasswordInterface:

xyz.openbmc_project.BIOSConfig.Password provides following Methods and Properities.

xyz.openbmc_project.BIOSConfig.Password Interface

Methods:
VerifyPassword
ChangePassword

Properities:
IsPasswordInitDone - To indicate BIOS password related details are recevied or not.