37 lines
1.0 KiB
C++
37 lines
1.0 KiB
C++
/**
|
|
* PROJECT: ExectOS
|
|
* COPYRIGHT: See COPYING.md in the top level directory
|
|
* FILE: xtoskrnl/includes/mm/pfn.hh
|
|
* DESCRIPTION: Physical Frame Number (PFN) support
|
|
* DEVELOPERS: Aiken Harris <harraiken91@gmail.com>
|
|
*/
|
|
|
|
#ifndef __XTOSKRNL_MM_PFN_HH
|
|
#define __XTOSKRNL_MM_PFN_HH
|
|
|
|
#include <xtos.hh>
|
|
|
|
|
|
/* Memory Manager */
|
|
namespace MM
|
|
{
|
|
class Pfn
|
|
{
|
|
private:
|
|
STATIC PLOADER_MEMORY_DESCRIPTOR FreeDescriptor;
|
|
STATIC ULONG_PTR HighestPhysicalPage;
|
|
STATIC ULONG_PTR LowestPhysicalPage;
|
|
STATIC ULONG NumberOfPhysicalPages;
|
|
STATIC LOADER_MEMORY_DESCRIPTOR OriginalFreeDescriptor;
|
|
STATIC PFN_NUMBER PfnDatabaseSize;
|
|
|
|
public:
|
|
STATIC XTAPI VOID ComputePfnDatabaseSize(VOID);
|
|
STATIC XTAPI ULONG GetNumberOfPhysicalPages(VOID);
|
|
STATIC XTAPI PFN_NUMBER GetPfnDatabaseSize(VOID);
|
|
STATIC XTAPI VOID ScanMemoryDescriptors(VOID);
|
|
};
|
|
}
|
|
|
|
#endif /* __XTOSKRNL_MM_PFN_HH */
|