# SecSMIFlash

| Index | Module | Size | Phase |
|-------|--------|------|-------|
| 0231 | SecSMIFlash | 22,304 bytes (21.8 KB) | DXE |

## 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)