Module Identity
- Binary name: Platform.efi
- Index: 0340
- SHA256: fe4cd1cf7297a61019be51319f9498ae02e35a64fd7f23c4b593072a7eeee455
- MD5: 9b0999f73209d97ec9936f2ed566a57d
- Image size: 0x405a0 bytes (258.0 KB)
- Architecture: x86-64 (UEFI DXE driver)
- Total functions: 144 (all named)
- Strings: 382
- IDA port: 13345
Overview
This is the DxePlatform Setup driver from the Purley Refresh (PurleyRpPkg) platform for the Lenovo ThinkSystem HR650X BIOS. It is one of the core platform setup configuration drivers, responsible for:
- HII Form Management: Registering and managing BIOS setup forms via UEFI HII
- Setup Variable Handling: Reading, writing, and migrating setup configuration variables
- ME (Management Engine) Configuration: Setting up SPS (Server Platform Services) configuration
- Disk Information Display: Enumerating ATA/ATAPI devices and displaying disk info in setup
- Boot Option Maintenance: Handling boot configuration options
- S3 Resume Support: Writing S3 boot script entries for resume
Key Components
Entry Point & Initialization
| Address |
Name |
Description |
| 0x464 |
_ModuleEntryPoint |
Standard UEFI module entry point |
| 0x490 |
DriverInit |
Initializes gImageHandle, gST, gBS, gRT, gDS, looks up HII protocols, MM PCI, USRA |
| 0x9EC |
DriverEntryMain |
Main logic: calls GetAndSetSocketIioConfig, installs setup variables, HII protocols |
| 0x14B4 |
DxePlatformDriverEntry |
Registers HII ConfigAccess protocol with 3 callbacks (RouteConfig, ExtractConfig, Callback) |
| 0x13A4 |
LocateHiiSetup |
Locates HII setup protocol handles |
HII Callbacks (EFI_HII_CONFIG_ACCESS_PROTOCOL)
The driver registers three standard HII ConfigAccess callbacks:
| Address |
Name |
Purpose |
| 0x198C |
HiiRouteConfig |
Routes configuration requests (Callback A) |
| 0x1B18 |
HiiExtractConfig |
Extracts configuration (Callback B) |
| 0x20C0 |
SetupFormCallback |
Main form callback - handles all browser actions |
| 0x1EEC |
HiiConfigRouting |
Configuration routing handler |
| 0x28C0 |
SetupActionHandler |
Handles SocketMPLink, SocketIOConfiguration, SocketProcessorConfiguration options |
| 0x2BA8 |
SetupRouteHandler |
Main setup configuration route handler |
Setup Configuration
| Address |
Name |
Description |
| 0x32CC |
SetupIfrNavigator |
Navigates IFR form elements |
| 0x3398 |
SetupActionDispatcher |
Dispatches setup actions to handlers |
| 0x3478 |
SetupValueSetter |
Sets setup values |
| 0x35EC |
SetupValueFormatter |
Formats values for display |
| 0x3BE0 |
SetupBootOptionMaint |
Boot option maintenance |
| 0x5370 |
SetupOptionProcessor |
Processes setup configuration options |
| 0x5594 |
SetupOptionQuery |
Queries option values |
| 0x5710 |
PlatformSetupPolicy |
Platform-level setup policy |
| 0x5808 |
ProcessSetupConfig |
Processes complete setup configuration |
Management Engine (ME) Configuration
| Address |
Name |
Description |
| 0x3E14 |
MeInitSpsInfo |
ME SPS info initialization - reads MEFS1/MEFS2 registers, configures ME subsystems |
| 0x47F0 |
MeExtractSpsConfigOnSetupEnter |
Extracts ME type (SPS/WS/DFX/DISABLED) and firmware mode on setup entry |
| 0x4970 |
MeSetupConfiguration |
Configures all ME-related setup options |
| 0x4BE8 |
ExtractMeSpsConfig |
Extracts ME SPS configuration data |
| 0x4CA4 |
MeFirmwareUpdateHandler |
Handles ME firmware update operations |
The ME subsystem options configured include:
- HECI protocol interface
- PECI (Platform Environment Control Interface)
- ASA (Auxiliary Security Agent)
- ME Shutdown
- Telemetry Hub
- Turbo State Limiting
- Flash Descriptor Region Verification
- CUPS (Converged Unified Platform Services)
- MCTP (Management Component Transport Protocol)
- Direct ME Update
- Dual ME Image
- DeepSx Power States
- PCH Thermal Sensor
Disk Info Records (SetupInfoRecords.c)
| Address |
Name |
Description |
| 0x36A0 |
PopulateDiskInfoRecords |
Enumerates ATA/ATAPI handles, reads IDENTIFY data, builds info strings |
| 0xA194 |
SetupRecordsGetSet |
Gets or sets info records |
| 0xA2B0 |
SetupRecordsList |
Lists info records |
| 0xA370 |
SetupInfoRecordsDisplay |
Displays records in setup form |
| 0xA440 |
SetupRecordsNavigate |
Navigates records |
| 0xA588 |
SetupInfoRecordsWriter |
Writes records to HII database |
This component enumerates all handles with ATA/ATAPI Block IO protocol, reads device IDENTIFY data, extracts:
- Model name
- Capacity in GB (with proper size calculation)
- ATAPI vs HDD detection
- Serial number
Setup Variable Management
| Address |
Name |
Description |
| 0x8E84 |
InstallSetupVariables |
Creates and sets all setup variables |
| 0x841C |
SetSetupVariable |
Sets a setup UEFI variable |
| 0x801C |
GetSetupString |
Gets a setup configuration string |
| 0x82D0 |
SetupVariableReadback |
Reads back setup variable for verification |
| 0x8DC8 |
SetupVarMigrate |
Migrates setup variables between versions |
| 0x8CCC |
SetupDataMigrate |
Migrates setup data between generations |
| 0x8C80 |
SetupVarSizeCheck |
Checks setup variable size |
| 0xAF68 |
SetupVariableGet |
Gets setup variable from UEFI variable store |
| 0xB094 |
SetupVariableSet |
Sets setup variable in UEFI variable store |
S3 Boot Script Support
| Address |
Name |
Description |
| 0x7B08 |
WriteS3BootScript |
Writes boot script entries for S3 resume |
| 0x8760 |
VariableServicesInit |
Initializes variable services for S3 path |
Device Path Operations
| Address |
Name |
Description |
| 0x60C8 |
CreateDevicePath |
Creates vendor device path node |
| 0x749C |
DevicePathNodeOps |
Device path node operations |
| 0x7524 |
DevicePathType |
Gets device path type |
| 0x7550 |
DevicePathSubType |
Gets device path subtype |
| 0x7580 |
DevicePathNodeLength |
Gets node length |
| 0x75B8 |
DevicePathNextNode |
Advances to next node |
| 0x75F0 |
DevicePathIsMultiInstance |
Checks multi-instance |
| 0x762C |
DevicePathIsEndInstance |
Checks end instance |
| 0x7680 |
DevicePathAppend |
Appends device paths |
| 0x77A4 |
DevicePathUtilities |
General device path utilities |
Low-Level I/O Access
| Address |
Name |
Description |
| 0x62A0 |
WritePciCfg |
Writes to PCI configuration space |
| 0x62D4 |
ReadPciCfg |
Reads from PCI configuration space |
| 0x7ACC |
ReadCpuPciCfg |
Reads CPU PCI config via MM PCI protocol |
| 0x7C28 |
ReadCpRcCfg |
Reads CpRc register |
| 0x7CE0 |
GetManufacturingMode |
Returns manufacturing mode flag |
| 0xABD0 |
IoRead8 |
8-bit I/O port read |
| 0xAC00 |
IoWrite8 |
8-bit I/O port write |
| 0xACDC |
IoRead16 |
16-bit I/O port read |
| 0xAD34 |
IoWrite16 |
16-bit I/O port write |
| 0xAD84 |
IoRead32 |
32-bit I/O port read |
| 0xAE24 |
IoWrite32 |
32-bit I/O port write |
| 0xAC30 |
MmIoRead32 |
32-bit MMIO read |
| 0xAC60 |
GetTimerValue |
Reads timer for delay calculation |
Libraries Used
- BaseLib (Strings, SafeStrings) - String length, compare, copy
- BasePrintLib (PrintLibInternal) - SPrint/VSPrint formatting
- UefiBootServicesTableLib - gBS, gImageHandle
- UefiRuntimeServicesTableLib - gRT
- DxeServicesTableLib - gDS
- UefiHiiServicesLib - HII database/string/package list protocols
- UefiHiiLib - HII configuration utilities
- DevicePathLib - Device path construction/navigation
- PiDxeS3BootScriptLib - S3 boot script operations
- DxeMmPciBaseLib - MM PCI protocol
- DxeUsraLib - USRA protocol
Protocols Interacted With
| Protocol GUID |
Name |
Variable |
| HII Database |
gEfiHiiDatabaseProtocolGuid |
gHiiDatabase (0xFF68) |
| HII String |
gEfiHiiStringProtocolGuid |
gHiiString (0xFF88) |
| HII Package List |
gEfiHiiPackageListProtocolGuid |
gHiiPackageList (0xFF78) |
| HII Config Routing |
gEfiHiiConfigRoutingProtocolGuid |
gHiiConfigRouting (0xFF70) |
| HII Config Access |
gEfiHiiConfigAccessProtocolGuid |
gHiiConfigAccess (0xFF80) |
| MM PCI |
gEfiMmPciBaseProtocolGuid |
mPciUsra (0xFF00) |
| USRA |
gUsraProtocolGuid |
mUsra (0xFFA0) |
UEFI Variables Managed
"SocketIioConfig" - Socket IIO configuration"IntelSetup" - Main setup configuration (via HII ConfigAccess)- Platform setup variables installed by
InstallSetupVariables (0x8E84)
Source File References
e:\hs\PurleyRpPkg\Platform\Dxe\Setup\SetupPlatform.c (main, 23 refs)e:\hs\PurleyRpPkg\Platform\Dxe\Setup\SetupInfoRecords.c (10 refs)e:\hs\PurleyRpPkg\Library\SetupLib\DxeSetupLib.c (14 refs)e:\hs\PurleyRpPkg\Platform\Dxe\Setup\MeSpsSetup.c (3 refs)e:\hs\MdePkg\Library\BaseLib\String.c (13 refs)e:\hs\MdePkg\Library\BaseLib\SafeString.c (8 refs)e:\hs\MdeModulePkg\Library\UefiHiiLib\HiiLib.c (10 refs)e:\hs\MdePkg\Library\BasePrintLib\PrintLibInternal.c (8 refs)e:\hs\MdeModulePkg\Library\PiDxeS3BootScriptLib\BootScriptSave.c (7 refs)e:\hs\Build\HR6N0XMLK\DEBUG_VS2015\X64\PurleyRpPkg\Platform\Dxe\Setup\DxePlatform\DEBUG\AutoGen.c (3 refs, auto-generated)
Build Info
- Platform: Purley Refresh (HR6N0XMLK)
- Toolchain: VS2015
- Target: DEBUG
- Architecture: X64
- BIOS: Lenovo HR650X (ThinkSystem)
Function Count: 144
- Named: 144 (100%)
- Unnamed: 0
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