christoph/lecture-operating-system-development
1
Fork 0
Code Activity

update paging

Browse Source
This commit is contained in:
Christoph Urlacher
2022-07-04 21:29:06 +02:00
parent 1ae227ae33
commit 19ab6fef06
1 changed files with 0 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
c_os/kernel/Paging.h
View File

@ -52,28 +52,6 @@
#ifndef __Paging_include__ #ifndef __Paging_include__
#define __Paging_include__ #define __Paging_include__
// Bits fuer Eintraege in der Page-Table
#define PAGE_PRESENT 0x001
#define PAGE_WRITEABLE 0x002
#define PAGE_BIGSIZE 0x080
#define PAGE_RESERVED 0x800 // Bit 11 ist frei fuer das OS
// Adresse des Page-Directory (benoetigt 4 KB)
#define PAGE_DIRECTORY 0x200000
// Adresse der Page-Table (benoetigt 4 KB)
#define PAGE_TABLE 0x201000
// Start- und End-Adresse der 4 KB Seiten die durch die Page-Table adressiert werden
#define FST_ALLOCABLE_PAGE 0x202000
#define LST_ALLOCABLE_PAGE 0x2FF000
// Externe Funktionen in startup.asm
extern "C" {
void paging_on(unsigned int* p_pdir); // Paging einschalten
void invalidate_tlb_entry(unsigned int* ptr); // Page in TLB invalid.
}
// ativiert paging // ativiert paging
extern void pg_init(); extern void pg_init();