_EXT_IOMMU_DEVICE_ID_PCI

//0x10 bytes (sizeof) struct _EXT_IOMMU_DEVICE_ID_PCI { union { ULONGLONG AsUINT64; //0x0 struct { USHORT PciSegmentNumber; //0x0 USHORT PhantomFunctionBits:2; //0x2 USHORT BusRange:1; //0x2 USHORT DevicePathLength:5; //0x2 USHORT StartBusNumber:8; //0x2 union { USHORT Bdf; //0x4 struct { UCHAR SubordinateBus; //0x4 UCHAR SecondaryBus; //0x5 }; }; }; }; USHORT* DevicePath; //0x8 };