Memory.h

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#pragma once
 
//                  Structures                  //
 
typedef struct _PAGE_ENTRY
{
    union
    {
        UINT64 Flags;
 
        PML4E_64     Pml4;
        PDPTE_1GB_64 PdptLarge; // 1GB
        PDPTE_64     Pdpt;
        PDE_2MB_64   PdLarge;   // 2MB
        PDE_64       Pd;
        PTE_64       Pt;
 
        //
        // Common fields.
        //
 
        struct
        {
            UINT64 Present : 1;
            UINT64 Write : 1;
            UINT64 Supervisor : 1;
            UINT64 PageLevelWriteThrough : 1;
            UINT64 PageLevelCacheDisable : 1;
            UINT64 Accessed : 1;
            UINT64 Dirty : 1;
            UINT64 LargePage : 1;
            UINT64 Global : 1;
            UINT64 Ignored1 : 3;
            UINT64 PageFrameNumber : 36;
            UINT64 Reserved1 : 4;
            UINT64 Ignored2 : 7;
            UINT64 ProtectionKey : 4;
            UINT64 ExecuteDisable : 1;
        } Fields;
    };
} PAGE_ENTRY, *PPAGE_ENTRY;