blob: f7955afba54ac34fe7c0e34f1bd8ac5c54dd66e5 (
plain) (
tree)
|
|
#ifndef VMM_H
#define VMM_H
#include "common.h"
typedef struct Process Process;
typedef struct List List;
extern uint32 *gKernelPageDirectory;
extern uint8 gKernelPageHeapBitmap[];
#define SET_PAGEFRAME_USED(bitmap, pageIndex) bitmap[((uint32) pageIndex)/8] |= (1 << (((uint32) pageIndex)%8))
#define SET_PAGEFRAME_UNUSED(bitmap, p_addr) bitmap[((uint32) p_addr/PAGESIZE_4M)/8] &= ~(1 << (((uint32) p_addr/PAGESIZE_4M)%8))
#define IS_PAGEFRAME_USED(bitmap, pageIndex) (bitmap[((uint32) pageIndex)/8] & (1 << (((uint32) pageIndex)%8)))
#define SET_PAGEHEAP_USED(pageIndex) gKernelPageHeapBitmap[((uint32) pageIndex)/8] |= (1 << (((uint32) pageIndex)%8))
#define SET_PAGEHEAP_UNUSED(p_addr) gKernelPageHeapBitmap[((uint32) p_addr/PAGESIZE_4K)/8] &= ~(1 << (((uint32) p_addr/PAGESIZE_4K)%8))
#define IS_PAGEHEAP_USED(pageIndex) (gKernelPageHeapBitmap[((uint32) pageIndex)/8] & (1 << (((uint32) pageIndex)%8)))
char* getPageFrame4M();
void releasePageFrame4M(uint32 p_addr);
uint32 *getPdFromReservedArea4K();
void releasePdFromReservedArea4K(uint32 *);
void initializeMemory(uint32 high_mem);
uint32 *createPd();
void destroyPd(uint32 *);
uint32 *copyPd(uint32* pd);
BOOL addPageToPd(uint32* pd, char *v_addr, char *p_addr, int flags);
BOOL removePageFromPd(uint32* pd, char *v_addr, BOOL releasePageFrame);
void enablePaging();
void disablePaging();
uint32 getTotalPageCount();
uint32 getUsedPageCount();
uint32 getFreePageCount();
void initializeProcessMmap(Process* process);
void* mapMemory(Process* process, uint32 nBytes, uint32 pAddress, List* pAddressList);
BOOL unmapMemory(Process* process, uint32 nBytes, uint32 vAddress);
#endif // VMM_H
|