28. x86_64 Support

• 28.1. AMD64 Specific Boot Options
  • 28.1.1. Machine check
  • 28.1.2. APICs
  • 28.1.3. Timing
  • 28.1.4. Idle loop
  • 28.1.5. Rebooting
  • 28.1.6. NUMA
  • 28.1.7. ACPI
  • 28.1.8. PCI
  • 28.1.9. IOMMU (input/output memory management unit)
  • 28.1.10. Miscellaneous
  • 28.1.11. AMD SEV (Secure Encrypted Virtualization)
• 28.2. General note on [U]EFI x86_64 support
  • 28.2.1. Mechanics
• 28.3. Memory Management
  • 28.3.1. Complete virtual memory map with 4-level page tables
  • 28.3.2. Complete virtual memory map with 5-level page tables
• 28.4. 5-level paging
  • 28.4.1. Overview
  • 28.4.2. Enabling 5-level paging
  • 28.4.3. User-space and large virtual address space
• 28.5. Fake NUMA For CPUSets
• 28.6. Firmware support for CPU hotplug under Linux/x86-64
• 28.7. Configurable sysfs parameters for the x86-64 machine check code
• 28.8. Using FS and GS segments in user space applications
  • 28.8.1. Common FS and GS usage
  • 28.8.2. Reading and writing the FS/GS base address
  • 28.8.3. Accessing FS/GS base with arch_prctl()
  • 28.8.4. Accessing FS/GS base with the FSGSBASE instructions
  • 28.8.5. Compiler support for FS/GS based addressing
  • 28.8.6. FS/GS based addressing with inline assembly