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the top of the address space to be reclaimed. The problem is that with the APTD gone the mapable kernel address space runs right to the end of the 32 bit address space. As a max this is 0x100000000, which can't be represented in 32 bits, so we have to use ptd entry n-1 and pte offset n-1, instead of ptd entry n and pte offset 0. There's still 1 page we can't use, but we gain just under 4 megs of kva (8 megs with PAE). Sponsored by: DARPA, Network Associates Laboratories |
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acpica | ||
amd64 | ||
compile | ||
conf | ||
ia32 | ||
include | ||
isa | ||
pci | ||
Makefile |