struct _DMA_IOMMU_INTERFACE_EX// Size=0xc0
{
    unsigned long long Size;// Offset=0x0 Size=0x8
    unsigned long Version;// Offset=0x8 Size=0x4
    struct _DMA_IOMMU_INTERFACE_V1 V1;// Offset=0x10 Size=0x68
    struct _DMA_IOMMU_INTERFACE_V2 V2;// Offset=0x10 Size=0xb0
};