CPU Architectures

These books provide programming details about architecture-specific implementation.

• ARC architecture
  • Linux kernel for ARC processors
  • Feature status on arc architecture
• ARM Architecture
  • ARM Linux 2.6 and upper
  • Booting ARM Linux
  • Cluster-wide Power-up/power-down race avoidance algorithm
  • Interface for registering and calling firmware-specific operations for ARM
  • Interrupts
  • Kernel mode NEON
  • Kernel-provided User Helpers
  • Kernel Memory Layout on ARM Linux
  • Memory alignment
  • ARM TCM (Tightly-Coupled Memory) handling in Linux
  • Kernel initialisation parameters on ARM Linux
  • Software emulation of deprecated SWP instruction (CONFIG_SWP_EMULATE)
  • The Unified Extensible Firmware Interface (UEFI)
  • vlocks for Bare-Metal Mutual Exclusion
  • Porting
  • Feature status on arm architecture
  • SoC-specific documents
• ARM64 Architecture
  • ACPI Tables
  • Activity Monitors Unit (AMU) extension in AArch64 Linux
  • ACPI on Arm systems
  • Asymmetric 32-bit SoCs
  • Booting AArch64 Linux
  • ARM64 CPU Feature Registers
  • ARM64 ELF hwcaps
  • HugeTLBpage on ARM64
  • crashkernel memory reservation on arm64
  • Legacy instructions
  • Memory Layout on AArch64 Linux
  • Memory Tagging Extension (MTE) in AArch64 Linux
  • Perf
  • Pointer authentication in AArch64 Linux
  • Kernel page table dump
  • Silicon Errata and Software Workarounds
  • Scalable Matrix Extension support for AArch64 Linux
  • Scalable Vector Extension support for AArch64 Linux
  • AArch64 TAGGED ADDRESS ABI
  • Tagged virtual addresses in AArch64 Linux
  • Feature status on arm64 architecture
• IA-64 Architecture
  • Linux kernel release for the IA-64 Platform
  • Memory Attribute Aliasing on IA-64
  • EFI Real Time Clock driver
  • IPF Machine Check (MC) error inject tool
  • Light-weight System Calls for IA-64
  • IRQ affinity on IA64 platforms
  • An ad-hoc collection of notes on IA64 MCA and INIT processing
  • Serial Devices
  • Feature status on ia64 architecture
• LoongArch Architecture
  • 1. Introduction to LoongArch
  • 2. Booting Linux/LoongArch
  • 3. IRQ chip model (hierarchy) of LoongArch
  • 4. Feature status on loongarch architecture
• m68k Architecture
  • Command Line Options for Linux/m68k
  • Amiga Buddha and Catweasel IDE Driver
  • Feature status on m68k architecture
• MIPS-specific Documentation
  • 1. BMIPS DeviceTree Booting
  • 2. Ingenic JZ47xx SoCs Timer/Counter Unit hardware
  • 3. Feature status on mips architecture
• Nios II Specific Documentation
  • 1. Linux on the Nios II architecture
  • 2. Feature status on nios2 architecture
• OpenRISC Architecture
  • OpenRISC Linux
  • TODO
  • Feature status on openrisc architecture
• PA-RISC Architecture
  • PA-RISC Debugging
  • Register Usage for Linux/PA-RISC
  • Feature status on parisc architecture
• powerpc
  • NUMA resource associativity
  • DeviceTree Booting
  • The PowerPC boot wrapper
  • CPU Families
  • CPU Features
  • Coherent Accelerator Interface (CXL)
  • Coherent Accelerator (CXL) Flash
  • DAWR issues on POWER9
  • DEXCR (Dynamic Execution Control Register)
  • DSCR (Data Stream Control Register)
  • PCI Bus EEH Error Recovery
  • POWERPC ELF HWCAPs
  • ELF Note PowerPC Namespace
  • Firmware-Assisted Dump
  • HVCS IBM "Hypervisor Virtual Console Server" Installation Guide
  • IMC (In-Memory Collection Counters)
  • CPU to ISA Version Mapping
  • KASLR for Freescale BookE32
  • Linux 2.6.x on MPC52xx family
  • Hypercall Op-codes (hcalls)
  • PCI Express I/O Virtualization Resource on Powerenv
  • PMU Event Based Branches
  • Ptrace
  • Freescale QUICC Engine Firmware Uploading
  • Power Architecture 64-bit Linux system call ABI
  • Transactional Memory support
  • Protected Execution Facility
  • Virtual Accelerator Switchboard (VAS) userspace API
  • VCPU Dispatch Statistics
  • Device DAX
  • Feature status on powerpc architecture
• RISC-V architecture
  • ACPI on RISC-V
  • RISC-V Kernel Boot Requirements and Constraints
  • Boot image header in RISC-V Linux
  • Virtual Memory Layout on RISC-V Linux
  • RISC-V Hardware Probing Interface
  • arch/riscv maintenance guidelines for developers
  • RISC-V Linux User ABI
  • Vector Extension Support for RISC-V Linux
  • Feature status on riscv architecture
• s390 Architecture
  • Linux for S/390 and zSeries
  • IBM 3270 Display System support
  • S/390 driver model interfaces
  • Linux API for read access to z/VM Monitor Records
  • IBM s390 QDIO Ethernet Driver
  • S390 Debug Feature
  • Adjunct Processor (AP) facility
  • VFIO AP Locks Overview
  • vfio-ccw: the basic infrastructure
  • The s390 SCSI dump tool (zfcpdump)
  • S/390 common I/O-Layer
  • S/390 PCI
  • ibm 3270 changelog
  • ibm 3270 config3270.sh
  • Feature status on s390 architecture
• SuperH Interfaces Guide
  • DeviceTree Booting
  • Adding a new board to LinuxSH
  • Notes on register bank usage in the kernel
  • Feature status on sh architecture
  • Memory Management
  • Machine Specific Interfaces
  • Busses
• Sparc Architecture
  • Steps for sending 'break' on sunhv console
  • Application Data Integrity (ADI)
  • Oracle Data Analytics Accelerator (DAX)
  • Feature status on sparc architecture
• x86-specific Documentation
  • 1. The Linux/x86 Boot Protocol
  • 2. DeviceTree Booting
  • 3. x86 Feature Flags
  • 4. x86 Topology
  • 5. Kernel level exception handling
  • 6. Kernel Stacks
  • 7. Kernel Entries
  • 8. Early Printk
  • 9. ORC unwinder
  • 10. Zero Page
  • 11. The TLB
  • 12. MTRR (Memory Type Range Register) control
  • 13. PAT (Page Attribute Table)
  • 14. Hardware-Feedback Interface for scheduling on Intel Hardware
  • 15. Control-flow Enforcement Technology (CET) Shadow Stack
  • 16. x86 IOMMU Support
  • 17. Intel(R) TXT Overview
  • 18. AMD Memory Encryption
  • 19. AMD HSMP interface
  • 20. Intel Trust Domain Extensions (TDX)
  • 21. Page Table Isolation (PTI)
  • 22. Microarchitectural Data Sampling (MDS) mitigation
  • 23. The Linux Microcode Loader
  • 24. User Interface for Resource Control feature
  • 25. TSX Async Abort (TAA) mitigation
  • 26. Bus lock detection and handling
  • 27. USB Legacy support
  • 28. i386 Support
  • 29. x86_64 Support
  • 30. In-Field Scan
  • 31. Shared Virtual Addressing (SVA) with ENQCMD
  • 32. Software Guard eXtensions (SGX)
  • 33. Feature status on x86 architecture
  • 34. x86-specific ELF Auxiliary Vectors
  • 35. Using XSTATE features in user space applications
• Xtensa Architecture
  • Atomic Operation Control (ATOMCTL) Register
  • Passing boot parameters to the kernel
  • MMUv3 initialization sequence
  • Feature status on xtensa architecture