SecSMIFlash

Overview

Secure SMI Flash Update DXE Driver. Provides secure flash update capabilities within the System Management Mode context. Handles SMI-based SPI flash controller access for firmware update operations with security validation. Implements the authenticated flash update path that verifies updates before applying changes to the flash device.

Key Functions

• ModuleEntryPoint (0x4C0): UEFI driver entry point; calls sub_4FC for initialization, sub_890 for main registration and setup logic, and sub_2B64 for cleanup on failure.

Dependencies

• SPI Flash Controller: Flash read/write/erase hardware interfaces
• SMI Handler Infrastructure: SMM communication and dispatch
• Security Verification: Update authentication and integrity checks
• Related modules: SmiFlash, SmiFlashDxe, ReFlash, ReFlashSmm

Platform

Intel Purley (HR650X server platform), x86-64, PE32+ format, 6 sections (.text, .rdata, .data, section_3, .xdata, .reloc)