struct _EXT_IOMMU_FLUSH_CONTEXT// Size=0x18
{
    unsigned char InProgress;// Offset=0x0 Size=0x1
    unsigned char LowCompletionDataBit:1;// Offset=0x0 Size=0x1 BitOffset=0x0 BitSize=0x1
    unsigned char Reserved0:7;// Offset=0x0 Size=0x1 BitOffset=0x1 BitSize=0x7
    unsigned long long Status;// Offset=0x8 Size=0x8
    unsigned long long * StatusPointer;// Offset=0x8 Size=0x8
    unsigned long long PhysicalAddress;// Offset=0x10 Size=0x8
};