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linux-insides
  • README
  • Summary
    • Booting
      • From bootloader to kernel
      • First steps in the kernel setup code
      • Video mode initialization and transition to protected mode
      • Transition to 64-bit mode
      • Kernel decompression
      • Kernel load address randomization
    • Initialization
      • First steps in the kernel
      • Early interrupts handler
      • Last preparations before the kernel entry point
      • Kernel entry point
      • Continue architecture-specific boot-time initializations
      • Architecture-specific initializations, again...
      • End of the architecture-specific initializations, almost...
      • Scheduler initialization
      • RCU initialization
      • End of initialization
    • Interrupts
      • Introduction
      • Start to dive into interrupts
      • Interrupt handlers
      • Initialization of non-early interrupt gates
      • Implementation of some exception handlers
      • Handling Non-Maskable interrupts
      • Dive into external hardware interrupts
      • Initialization of external hardware interrupts structures
      • Softirq, Tasklets and Workqueues
      • Last part
    • System calls
      • Introduction to system calls
      • How the Linux kernel handles a system call
      • vsyscall and vDSO
      • How the Linux kernel runs a program
      • Implementation of the open system call
      • Limits on resources in Linux
    • Timers and time management
      • Introduction
      • Clocksource framework
      • The tick broadcast framework and dyntick
      • Introduction to timers
      • Clockevents framework
      • x86 related clock sources
      • Time related system calls
    • Synchronization primitives
      • Introduction to spinlocks
      • Queued spinlocks
      • Semaphores
      • Mutex
      • Reader/Writer semaphores
      • SeqLock
      • RCU
      • Lockdep
    • Memory management
      • Memblock
      • Fixmaps and ioremap
      • kmemcheck
    • Cgroups
      • Introduction to Control Groups
    • SMP
    • Concepts
      • Per-CPU variables
      • Cpumasks
      • The initcall mechanism
      • Notification Chains
    • Data Structures in the Linux Kernel
      • Doubly linked list
      • Radix tree
      • Bit arrays
    • Theory
      • Paging
      • Elf64
      • Inline assembly
      • CPUID
      • MSR
    • Initial ram disk
    • Misc
      • Linux kernel development
      • How the kernel is compiled
      • Linkers
      • Program startup process in userspace
      • Write and Submit your first Linux kernel Patch
      • Data types in the kernel
    • KernelStructures
      • IDT
    • Useful links
    • Contributors
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  1. Summary

Booting

This chapter describes the Linux kernel boot process. Here you will see a series of posts which describes the full cycle of the kernel loading process:

  • From the bootloader to kernel - describes all stages from turning on the computer to running the first instruction of the kernel.

  • First steps in the kernel setup code - describes first steps in the kernel setup code. You will see heap initialization, query of different parameters like EDD, IST and etc...

  • Video mode initialization and transition to protected mode - describes video mode initialization in the kernel setup code and transition to protected mode.

  • Transition to 64-bit mode - describes preparation for transition into 64-bit mode and details of transition.

  • Kernel Decompression - describes preparation before kernel decompression and details of direct decompression.

  • Kernel load address randomization - describes randomization of the Linux kernel load address.

This chapter coincides with Linux kernel v4.17.

PreviousREADMENextFrom bootloader to kernel

Last updated 2 years ago

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