#ifndef _NTMMAPI_H

/**
 * The MEMORY_REGION_INFORMATION_EX structure extends MEMORY_REGION_INFORMATION
 * with partition and NUMA preference metadata. On x64,
 * PartitionId is returned when the buffer is at least 40 bytes and NodePreference
 * when it is at least 48 bytes. Both classes 3 and 7 accept these extensions.
 */
typedef struct _MEMORY_REGION_INFORMATION_EX
{
    PVOID AllocationBase;                  // Base address of the allocation.
    ULONG AllocationProtect;               // Page protection when the allocation was created (individual pages can be different from this value).
    ULONG RegionType;                      // MemoryRegionInformation: legacy MEM_* values; MemoryRegionInformationEx: MEMORY_REGION_INFORMATION_TYPE bits.
    SIZE_T RegionSize;                     // The combined size of pages in the region.
    SIZE_T CommitSize;                     // The commit charge associated with the allocation.
    ULONG_PTR PartitionId;                 // 19H1
    ULONG_PTR NodePreference;              // 20H1
} MEMORY_REGION_INFORMATION_EX, *PMEMORY_REGION_INFORMATION_EX;

#endif
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