copy
//0x20 bytes (sizeof)
struct _IOMMU_DMA_RESERVED_REGION
{
    struct _IOMMU_DMA_RESERVED_REGION* RegionNext;                          //0x0
    ULONGLONG Base;                                                         //0x8
    ULONGLONG NumberOfPages;                                                //0x10
    UCHAR ShouldMap;                                                        //0x18
};