SaInitPei

Index: 0075 | Size: N/A | Arch: x64 | Phase: PEI

Overview

SaInitPei initializes the System Agent (memory controller / uncore) during the PEI phase. It configures SA registers, sets up MMIO (Memory-Mapped I/O) ranges, and publishes system topology HOBs used by later DXE drivers.

Key Functions

• System Agent base register initialization
• MMIO range programming
• PCIe root port configuration
• System topology HOB publication
• SA PM (Power Management) initialization

Protocols / PPIs / Dependencies

• SA PEI PPI
• PeiServicesTablePointer PPI
• SystemAgent HOB

Platform

HR650X (Purley platform, Skylake-SP)