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11. 80386 specific details

11.1 Boot procedure 

bbootsect.s [arch/i386/boot]
setup.S (+video.S) 
head.S (+misc.c) [arch/i386/boot/compressed]
start_kernel [init/main.c]

11.2 80386 (and more) Descriptors

Overview

Descriptors are data structure used by Intel microprocessor i386+ to virtualize memory.

Kind of descriptors

  • GDT (Global Descriptor Table)
  • LDT (Local Descriptor Table)
  • IDT (Interrupt Descriptor Table)
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