typedef enum
{
    MmNonCached = 0,
    MmCached = 1,
    MmWriteCombined = 2,
    MmHardwareCoherentCached = 3,
    MmNonCachedUnordered = 4,
    MmUSWCCached = 5,
    MmMaximumCacheType = 6
} MEMORY_CACHING_TYPE;