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Explore CXL (Compute Express Link) ecosystem development through QEMU-based emulation in this 43-minute conference talk from SNIA SDC 2025. Learn about the challenges of developing open-source software for emerging CXL technology and discover how emulation serves as a crucial pathway for advancement. Examine the major CXL features currently supported by QEMU emulation and follow step-by-step guidance for setting up a Linux + QEMU CXL environment to enable testing and development of new CXL features. Understand the platform limitations and explore the latest developments in support for dynamic capacity devices (DCD) and switches. Focus on emulating and interacting with CXL devices using the CXL Management Interface library (libcxlmi). Gain insights into the value of emulation within the CXL context and its practical use cases, while discovering the latest developments and key features of CXL emulation alongside its current limitations. Master the setup process for a Linux/QEMU development and testing environment with comprehensive references to available libraries and tools. Presented by CXL experts Anisa Su and Adam Manzanares from Samsung, this technical presentation provides essential knowledge for developers and engineers working with CXL technology.
