PageTables.h

#pragma pack(push, 1)
typedef unsigned __int64 uint64;

typedef union 
{
    uint64 All;
    struct
    {
        uint64 Ignored_0 : 3;
        uint64 WriteThrough : 1;
        uint64 DisableCache : 1;
        uint64 Ignored_1 : 7;
        uint64 PML4_PTR : 40;
        uint64 Reserved : 12;
    };
}CR3,*PCR3;

typedef union 
{
    void* All;
    struct
    {
        uint64 offsets : 12;
        uint64 PageTableIndex : 9;
        uint64 PageDirectoryIndex : 9;
        uint64 PageDirectoryPointerTableIndex : 9;
        uint64 PML4Index : 9;
        uint64 Reserved : 16;
    };
} VirtualAddress, * PVirtualAddress;

typedef union 
{
    uint64 All;
    struct
    {
        uint64 Present : 1;          
        uint64 ReadWrite : 1;      
        uint64 UserModeAccess : 1;   
        uint64 PageLevelWriteThrough : 1; 
        uint64 PageLevelCacheDisable : 1;
        uint64 Accessed : 1;       
        uint64 Ignored_0 : 1;
        uint64 LargePage : 1;        
        uint64 Ignored_1 : 4;
        uint64 PageFrameNumber : 36; 
        uint64 Reserved : 4;
        uint64 Ignored_2 : 11;
        uint64 NX : 1; 
    };
} PML4, * PPML4;


typedef union 
{
    uint64 All;
    struct
    {
        uint64 Present : 1;
        uint64 ReadWrite : 1;
        uint64 UserModeAccess : 1;
        uint64 PageLevelWriteThrough : 1;
        uint64 PageLevelCacheDisable : 1;
        uint64 accessed : 1;       
        uint64 Ignored_0 : 1;
        uint64 LargePage : 1;       
        uint64 Ignored_1 : 4;
        uint64 PageFrameNumber : 36; 
        uint64 Reserved : 4;
        uint64 Ignored3 : 11;
        uint64 NX : 1; 
    };
} PDPT, * PPDPT;


typedef union 
{
    uint64 All;
    struct
    {
        uint64 Present : 1;
        uint64 ReadWrite : 1;
        uint64 UserModeAccess : 1;
        uint64 PageLevelWriteThrough : 1;
        uint64 PageLevelCacheDisable : 1;
        uint64 accessed : 1;
        uint64 Ignored_0 : 1;
        uint64 LargePage : 1;
        uint64 Ignored_1 : 4;
        uint64 PageFrameNumber : 36;
        uint64 Reserved : 4;
        uint64 Ignored3 : 11;
        uint64 NX : 1;
    };
} PD, * PPD;


typedef union 
{
    uint64 All;
    struct
    {
        uint64 Present : 1;          
        uint64 ReadWrite : 1;      
        uint64 UserModeAccess : 1; 
        uint64 PageLevelWriteThrough : 1; 
        uint64 PageCacheDisable : 1; 
        uint64 Accessed : 1;         
        uint64 Dirty : 1;          
        uint64 PageAccessType : 1;   
        uint64 Global : 1;        
        uint64 Ignored_0 : 3;
        uint64 PageFrameNumber : 36;
        uint64 Reserved : 4;
        uint64 Ignored_1 : 7;
        uint64 ProtectionKey : 4; 
        uint64 NX : 1; 
    };
} PT, * PPT;