7c867905c5
Page tables no longer occupy space in the processes vm_map. This means that page tables can now be allocated from pmap_enter() when the first entry is made in the page table rather than relying on taking a section fault and faulting in a page table. This also lowers the overheads in creating and deleting page tables and simplfies cpu_fork(). A result of this change is that problems with mapping zero page and an associated pagetable when execing from a shared vm_map disappear fixing PR5178. |
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arm32 | ||
compile | ||
conf | ||
dev | ||
doc | ||
fpe-arm | ||
include | ||
iomd | ||
mainbus | ||
podulebus | ||
rc7500 | ||
riscpc | ||
vidc | ||
Makefile |