_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 Reserved:6; //0x2 USHORT StartBusNumber:8; //0x2 USHORT Bdf; //0x4 USHORT DevicePathLength; //0x6 }; }; USHORT* DevicePath; //0x8 };