//0xe8 bytes (sizeof)
struct _DMA_IOMMU_INTERFACE_EX
{
ULONGLONG Size; //0x0
ULONG Version; //0x8
union
{
struct _DMA_IOMMU_INTERFACE_V1 V1; //0x10
struct _DMA_IOMMU_INTERFACE_V2 V2; //0x10
struct _DMA_IOMMU_INTERFACE_V3 V3; //0x10
};
};