struct _IOMMU_PAGE_HANDLING_DATA {
unsigned __int64 Lock;/* 0x8 8 */
unsigned long ValidGroupFaultSequenceNumber;/* 0x10 4 */
/* 4 bytes padding */
unsigned long (*GetPageFault)(void*, unsigned long*, unsigned __int64*, unsigned short*, void**, unsigned __int64*);/* 0x18 8 */
void (*DismissPageFault)(void*, unsigned long, unsigned __int64, unsigned short, long);/* 0x20 8 */
};