AmiCpuPeiPreMem

Index: 0078 | Size: 16 KB (source) | Arch: x64 | Phase: PEI (pre-memory)

Overview

AmiCpuPeiPreMem is a pre-memory PEI driver that performs early CPU initialization before system memory is available. It discovers firmware volumes by CPUID-based socket affinity, reads configuration data via PCD PPIs, and sets up early cache-as-RAM (CAR) resources for use by subsequent PEI modules.

Key Functions

• FV (Firmware Volume) discovery by CPUID socket affinity
• PCD PPI data retrieval for CPU configuration
• Early CPU register programming
• Pre-memory PEI service initialization

Protocols / PPIs / Dependencies

• PCD (Platform Configuration Database) PPI
• PeiServicesTablePointer PPI
• Firmware Volume PPI

Platform

HR650X (Purley platform, Skylake-SP)