DxeCore

Overview

DxeCore is the DXE Foundation core module, the central execution infrastructure of the UEFI driver execution environment. It encompasses protocol database management (PROTOCOL_ENTRY, PROTOCOL_INTERFACE, HANDLE_ENTRY), GCD (Global Coherency Domain) services, memory management (page and pool allocators), image loading, event and timer handling, TPL management, the DXE dispatcher with dependency expression evaluation, firmware volume block I/O, section extraction, and runtime memory protection tables (Properties Table, Memory Attributes Table). Source: MdeModulePkg/Core/Dxe.

Key Functions

• DxeMain — core initialization and entry point
• Protocol database: InstallProtocol, LocateProtocol, RegisterProtocolNotify
• Handle database: CreateHandle, OpenHandles, CloseHandle
• Memory: CoreAllocatePages, CoreFreePages, CoreAllocatePool, CoreFreePool
• Dispatcher: CoreDispatcher, CoreStartImage, dependency evaluator
• Firmware Volume: FwVol block I/O, read, attribute operations
• Event/Timer: CreateEvent, SetTimer, RaiseTPL, RestoreTPL
• Image loader: CoreLoadImage, CoreStartImage, CoreUnloadImage
• Memory protection: PropertiesTable, MemoryAttributesTable construction

Dependencies

• UEFI Boot Services, Runtime Services
• DXE Services Table
• Firmware Volume Block Protocol
• Section Extraction Protocol

Platform

Lenovo HR650X (Intel Purley), X64, UEFI DXE Foundation core