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//0x78 bytes (sizeof)
struct _EXT_IOMMU_DOMAIN
{
    enum _EXT_IOMMU_DOMAIN_TYPE DomainType;                                 //0x0
    enum _EXT_IOMMU_TRANSLATION_TYPE TranslationType;                       //0x4
    struct
    {
        UCHAR DefaultDomain:1;                                              //0x8
        UCHAR FirmwareDomain:1;                                             //0x8
    } Flags;                                                                //0x8
    USHORT FirmwareDomainId;                                                //0xa
    struct _EXT_IOMMU_DOMAIN_SETTINGS Settings;                             //0x10
    ULONG ContextId;                                                        //0x30
    struct _LIST_ENTRY Devices;                                             //0x38
    struct _EXT_ENV_SPINLOCK Lock;                                          //0x48
    struct _EXT_IOMMU_DOMAIN* S2Domain;                                     //0x68
    VOID* HardwarePasidTable;                                               //0x70
};