Platform

Index: 0340 | Size: 263,584 bytes | Arch: x64 | Phase: DXE

Overview

Platform is the central platform initialization DXE driver for the HR650X server, implementing 50 functions that cover low-level CPU, chipset, and memory configuration. It manages cache control, MSR (Model-Specific Register) access, interrupt state, I/O port operations, and memory-copy/zero-fill utilities. The driver includes string manipulation, CPUID feature detection, and platform-specific bring-up sequences.

Key Functions

• DriverInit / ModuleEntryPoint -- Platform driver entry and dispatch
• CpuDeadLoop -- Infinite loop for fault/assert conditions
• DisableInterrupts / EnableInterrupts -- Global interrupt flag management
• DisableCache -- Cache control for sensitive chipset configuration
• CpuIdFeatureCheck -- CPU feature detection via CPUID instruction
• ReadMsr / WriteMsr -- MSR read/write wrappers
• IoRead32Stall -- MMIO read with stall for PCIe configuration
• InternalZeroMem / InternalCopyMem / SetMem -- Optimized memory manipulation
• AsciiStrCpyS -- Safe ASCII string copy
• GetAndSetSocketIioConfig -- Socket IIO (Integrated IO) module setup

Dependencies

• UEFI Boot Services / Runtime Services Table Library
• CPU architectural protocols (MSR, CPUID, cache control)
• Platform chipset registers (IIO, PCIe root ports)
• MTRR (Memory Type Range Register) programming

Platform

HR650X, x86-64, PE32+ image, 7 sections (.text, .rdata, .data, .rsrc 163KB), subsystem 0x0B (EFI_BOOT_SERVICE_DRIVER)