struct _IOMMU_RESERVED_DEVICE// Size=0x38
{
    struct _EXT_IOMMU_DEVICE_ID * DeviceId;// Offset=0x0 Size=0x8
    void * PageTable;// Offset=0x8 Size=0x8
    union _LARGE_INTEGER PageTablePhysical;// Offset=0x10 Size=0x8
    unsigned long RegionCount;// Offset=0x18 Size=0x4
    struct _EXT_IOMMU_RESERVED_MEMORY_REGION Regions[1];// Offset=0x20 Size=0x18
};