CXL Persistent Memory Firmware

A CXL persistent memory device firmware implementation based on Eclipse ThreadX RTOS.

Overview

This project implements a complete CXL persistent memory device firmware with frontend-backend separation architecture:

• Frontend (FE): Handles CXL protocol processing, host interaction, and device state management
• Backend (BE): Manages storage media, address translation, and data persistence

Architecture Features

• Multi-threaded architecture based on ThreadX RTOS
• State machine-driven frontend control logic
• Frontend-backend message queue communication
• Complete CXL.mem protocol support

Supported Architecture

• ARC HS: Single-core and SMP multi-core configurations supported
• Toolchain: MetaWare Development Toolkit
• ThreadX Version: 6.4.2

Directory Structure

├── fe/ # Frontend implementation
│ ├── src/ # Frontend source code
│ └── inc/ # Frontend headers
├── be/ # Backend implementation
│ ├── src/ # Backend source code
│ └── inc/ # Backend headers
├── cxlscm/ # Common components
└── threadx/common/ # Renamed for clarity, assuming it's ThreadX core