MainErrorHandler

Index: 0216 | Size: 25,584 bytes (152,960 body) | Phase: DXE/SMM

Overview

Top-level UEFI error handler dispatcher for the Intel Purley platform. This module initializes the error handling subsystem by calling library constructors, then registers error sources and notification callbacks. It serves as the main entry point that chains into PlatformErrorHandler, ProcessorErrorHandler, and other per-domain error handlers.

Recovered Module Split

• MainErrorHandler.c: contains ModuleEntryPoint() wrapper and dispatches initialization results.
• Library/registration/cleanup units: InitMainErrorHandlerLibraries(), RegisterMainErrorHandlerCallbacks(), and UnregisterMainErrorHandlerCallbacks() are split into linked units (recovered from decompiler artifacts).

Key Functions

• ModuleEntryPoint -- UEFI entry point; initializes libraries via InitMainErrorHandlerLibraries(), calls RegisterMainErrorHandlerCallbacks(), and falls back to UnregisterMainErrorHandlerCallbacks() on failure.
• InitMainErrorHandlerLibraries (recovered from sub_2398) -- library constructor chain initialization (gST/gBS/gRT/gSmst setup).
• RegisterMainErrorHandlerCallbacks (recovered from sub_2774) -- main error handler registration logic.
• UnregisterMainErrorHandlerCallbacks (recovered from sub_2704) -- cleanup/unload handler on initialization failure.

Recovered Symbol Mapping

• sub_2398 -> InitMainErrorHandlerLibraries
• sub_2774 -> RegisterMainErrorHandlerCallbacks
• sub_2704 -> UnregisterMainErrorHandlerCallbacks

Protocols/Dependencies

• UEFI Boot Services (gBS), Runtime Services (gRT), SMM System Table (gSmst)
• EFI_SMM_BASE2_PROTOCOL, EFI_SMM_SW_DISPATCH2_PROTOCOL
• EMCA Platform Protocol and MP Sync Data protocols

Platform

Intel Purley (Skylake-SP Xeon), HR650X
Source: PurleyPlatPkg/Ras/Smm/ErrHandling/MainErrorHandler/