CXL on Linux: Boot To Bash

This documentation is intended as a companion to systems engineers (Platform, BIOS, EFI, OS, etc) trying to enable CXL devices on Linux.

My only real goal is to help make the CXL ecosystem an ever-so-slightly more sane environment, for my own sake.

I hope this helps you as well.

Introduction

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Authors

Gregory Price

Editors

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Thanks

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Contents:

• Boot To Bash Roadmap
• Devices
  • Devices
  • UEFI Data
  • Dynamic Capacity Devices
• Platform Configuration
  • ACPI Table Reference
  • BIOS and EFI Configuration
• Linux Configuration
  • Linux Init (Early Boot)
  • Driver Operations
  • Memory Hotplug
  • Allocation of CXL Memory
  • Memory Tiering