Linux Kernel Documentation: x86_64 Support

Posted 2022-02-17 rtoax

25. x86_64 Support — The Linux Kernel documentationhttps://www.kernel.org/doc/html/latest/x86/x86_64/index.html

• 25.1. AMD64 Specific Boot Options
  • 25.1.1. Machine check
  • 25.1.2. APICs
  • 25.1.3. Timing
  • 25.1.4. Idle loop
  • 25.1.5. Rebooting
  • 25.1.6. Non Executable Mappings
  • 25.1.7. NUMA
  • 25.1.8. ACPI
  • 25.1.9. PCI
  • 25.1.10. IOMMU (input/output memory management unit)
  • 25.1.11. Miscellaneous
• 25.2. General note on [U]EFI x86_64 support
  • 25.2.1. Mechanics
• 25.3. Memory Management
  • 25.3.1. Complete virtual memory map with 4-level page tables
  • 25.3.2. Complete virtual memory map with 5-level page tables
• 25.4. 5-level paging
  • 25.4.1. Overview
  • 25.4.2. Enabling 5-level paging
  • 25.4.3. User-space and large virtual address space
• 25.5. Fake NUMA For CPUSets
• 25.6. Firmware support for CPU hotplug under Linux/x86-64
• 25.7. Configurable sysfs parameters for the x86-64 machine check code
• 25.8. Using FS and GS segments in user space applications
  • 25.8.1. Common FS and GS usage
  • 25.8.2. Reading and writing the FS/GS base address
  • 25.8.3. Accessing FS/GS base with arch_prctl()
  • 25.8.4. Accessing FS/GS base with the FSGSBASE instructions
  • 25.8.5. Compiler support for FS/GS based addressing
  • 25.8.6. FS/GS based addressing with inline assembly