Re: pmap_enter vs pmap_qenter
pmap_kenter() and pmap_qenter() enter the pages into the pmap unmanaged,
meaning it just stuffs the pte's and doesn't track and pv_entry's.
pmap_enter() enters the pages into the pmap managed.
I think that has something to do with how the pages have to be removed
later on when the block is freed.
-Matt
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