x86, numa, 32-bit: make sure get we kva space

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when 1/3 user/kernel split is used, and less memory is installed, or if
we have a big hole below 4g, max_low_pfn is still using 3g-128m

try to go down from max_low_pfn until we get it. otherwise will panic.

need to make 32-bit code to use register_e820_active_regions ... later.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Yinghai Lu 2008-06-03 19:32:30 -07:00 • committed by Ingo Molnar

parent ab530e1f78

commit 84b56fa46b

1 changed files with 12 additions and 5 deletions

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arch/x86/mm/discontig_32.c

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