HeciInit

Index: 0077 | Size: 41 KB (source) | Arch: x64 | Phase: PEI

Overview

HeciInit initializes the HECI (Host Embedded Controller Interface) communication engine during PEI. It detects the ME type (SPS/WS/DFX), establishes HECI-1 and HECI-2 message channels, sends and receives HECI messages, and handles DWR (Disable Warm Reset) flows. The module provides the HECI PPI for other PEIMs to communicate with the Management Engine.

Key Functions

• HECI-1 and HECI-2 initialization
• ME type detection (SPS/WS/DFX)
• HECI message send/receive (HeciSend, HeciRecv, HeciSendAndWait)
• DWR (Disable Warm Reset) flow handling
• ME firmware status polling
• HECI PPI installation

Protocols / PPIs / Dependencies

• HECI PPI (produces)
• PeiServicesTablePointer PPI
• ME HOB (produces)

Platform

HR650X (Purley platform)