4.3 Modules

Only modules in the board package should be modified in the process of board porting. The minimum platform package and other common package contents must not be directly modified. The board package and silicon package modules may have multiple instances to support different boards and different silicon. These components are required. They enable orderly board porting and add the support for extensibility in later stages. The libraries consumed are the subset of libraries required by this specification. Some libraries are defined in this specification, some are defined in EDK II documentation.

4.3.1 UEFI Components (DXE)

Item Producing Package Libraries Consumed
DxeIpl.efi MdeModulePkg
SiliconPolicyPeiPostMemory.efi MinPlatformPkg SiliconPolicyInitLib
SiliconPolicyUpdateLib
PlatformInitPostMemory.efi MinPlatformPkg BoardInitLib
TestPointCheckLib
ResetSystemRuntimeDxe.efi MdeModulePkg ResetSystemLib
PciHostBridge.efi MdeModulePkg PciHostBridgeLib
Table 17 Stage II DXE UEFI Components

4.3.2 Platform Architecture Libraries (PEI)

Item API Definition Package Producing Package Description
BoardInitLib MinPlatformPkg BoardPkg Board initialization library.
SiliconPolicyInitLib IntelSiliconPkg SiliconPkg Provides default silicon configuration policy data.
SiliconPolicyUpdat eLib IntelSiliconPkg BoardPkg Provides board updates to silicon configuration policy data.
TestPointCheckLib MinPlatformPkg MinPlatformPkg Test point check library. It is called by PlatformInit module to perform stage-specific checks.
TestPointLib MinPlatformPkg MinPlatformPkg Test point library. It provides helper functionality for TestPointCheck lib.
Table 18 Stage II PEI Platform Architecture Libraries

4.3.3. Platform Architecture Libraries (DXE)

Stage II contains some DXE items needed to enable Stage III. No board porting of these libraries is required. Board integrators should ensure that their silicon package provides the necessary libraries. These libraries and the UEFI Components (DXE) are functionally irrelevant to Stage II functionality.

Item API Definition Package Producing Package Description
ResetSystemLib MdeModulePkg SiliconPkg For DXE reset architecture protocol
PciHostBridgeLib MdeModulePkg SiliconPkg For DXE PCI host bridge driver
Table 19 Stage II DXE Platform Architecture Libraries