struct _IOMMU_FAULT_SOURCE_ID { enum _IOMMU_FAULT_SOURCE_ID_TYPE Type;/* 0x0 4 */ /* 4 bytes padding */ union { unsigned __int64 LogicalId;/* 0x8 8 */ struct { unsigned long Segment;/* 0x8 4 */ unsigned long Bdf;/* 0xc 4 */ } PciRid;/* 0x8 8 */ struct { struct _EXT_IOMMU* Iommu;/* 0x8 8 */ unsigned long StreamId;/* 0x10 4 */ } IommuStreamId;/* 0x8 16 */ };/* 0x8 16 */};size 24 (0x18)4 members1 hole (4 bytes)padding 01 cacheline
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