The
pmap_remove
function removes the range of addresses between
sva
and
eva
from the physical map
pmap.
If
eva
is less than
sva,
then the result is undefined.
It is assumed that both
sva
and
eva
are page-aligned addresses.
The
pmap_remove_all
removes the physical page
m
from all physical maps in which it resides, and reflects back the modify
bits to the appropriate pager.
The
pmap_remove_pages
function removes all pages from the physical map
pmap,
within the range of physical addresses bounded by
sva
and
eva.
This function is called when a process exits to run down its address space
more quickly than would be the case for calling
pmap_remove.