Compute Express Link 2.0 Update

Compute Express Link™ (CXL™) is an open industry standard interconnect offering high-bandwidth, low latency connectivity between host processor and devices such as accelerators, memory buffers, and smart I/O devices. CXL 1.1 debuted in August 2019. Building on the industry success and acceptance of CXL as evidenced by the 130+ member companies with active participation, CXL Consortium announced the availability of CXL 2.0 in Nov 2020. CXL 2.0 enables additional usage models while maintaining full backward compatibility with CXL 1.1. CXL 2.0 enhances the CXL specification in many areas: CXL Switch, persistent memory, standardized Memory Device interface, Hot-plug and link security.

In this presentation, we will go over each of these areas and their implications to ACPI and UEFI interfaces as well as the UEFI Firmware Layer.

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