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)