1Remote BIOS Configuration via BMC Overview Provides ability for the user to view 2and modify the BIOS setup configuration parameters remotely via BMC at any Host 3state. Modifications to the parameters take place upon the next system reboot or 4immediate based on the host firmware. Please refer 5https://github.com/openbmc/docs/blob/master/designs/remote-bios-configuration.md 6 7Remote BIOS Configuration (RBC) service exposes D-Bus methods for BIOS settings 8management operations. 9 10RBC Manager Interface xyz.openbmc_project.BIOSConfig.Manager provides following 11methods, properties. 12 13Object Path : /xyz/openbmc_project/BIOSConfig/Manager 14 15xyz.openbmc_project.BIOSConfig.Manager 16 17methods: SetAttribute -To set the particular BIOS attribute with new value. 18GetAttribute -To get the bios attribute current values and pending values if 19again. 20 21Properites: ResetBIOSSettings - Contain reset BIOS setting type: Interface have 22to set NoAction this property, when Reset BIOS settings are informed to the 23BIOS. BaseBIOSTable - Save the whole BIOS table. 24map{attributeName,struct{attributeType,readonlyStatus,displayname, 25description,menuPath,current,default, array{struct{optionstring,optionvalue}}}} 26Example 1: {"DdrFreqLimit", 27{xyz.openbmc_project.BIOSConfig.Manager.AttributeType.String, false, "Memory 28Operating Speed Selection", "Force specific Memory Operating Speed or use Auto 29setting.", "Advanced/Memory Configuration/Memory Operating Speed Selection", 30"0x00", "0x0B", { {"OneOf", "auto"}, {"OneOf", "2133"}, {"OneOf", "2400"}, 31{"OneOf", "2664"}, {"OneOf", "2933"} } } } Example 2: {"BIOSSerialDebugLevel", 32{xyz.openbmc_project.BIOSConfig.Manager.AttributeType.Integer, false, "BIOS 33Serial Debug level", "BIOS Serial Debug level during system boot.", 34"Advanced/Debug Feature Selection", 0x00, 0x01, { {"MinBound", 0}, {"MaxBound", 354}, {"ScalarIncrement",1} } } } 36 37Signals: AttributeChanged - Signal sent out when attribute is changed 38 39PasswordInterface: 40 41xyz.openbmc_project.BIOSConfig.Password provides following Methods and 42Properities. 43 44xyz.openbmc_project.BIOSConfig.Password Interface 45 46Methods: ChangePassword - Change the BIOS setup password. 47 48Properities: PasswordInitialized - To indicate BIOS password related details are 49received or not. 50