Understanding the Linux® Virtual Memory Manager

Appendix C. Page Table Management

Contents

C.1 Page Table Initialization	240
C.1.1 Function: paging_init()	240
C.1.2 Function: pagetable_init()	241
C.1.3 Function: fixrange_init()	245
C.1.4 Function: kmap_init()	246
C.2 Page Table Walking	248
C.2.1 Function: follow_page()	248

Page Table Initialization

Contents

C.1 Page Table Initialization	240
C.1.1 Function: paging_init()	240
C.1.2 Function: pagetable_init()	241
C.1.3 Function: fixrange_init()	245
C.1.4 Function: kmap_init()	246

Function: paging_init() (arch/i386/mm/init.c)

This is the top-level function called from setup_arch(). When this function returns, the page tables have been fully set up. Be aware that this is all x86 specific.

 351 void __init paging_init(void) 352 { 353 pagetable_init(); 354 355 load_cr3(swapper_pg_dir); ...