x86: not overmap more than the end of RAM in init_memory_mapping - 64bit

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handle head and tail that are not aligned to big pages (2MB/1GB boundary).

with this patch, on system that support gbpages, change:

  last_map_addr: 1080000000 end: 1078000000

to:

  last_map_addr: 1078000000 end: 1078000000

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

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Yinghai Lu 2008-07-08 01:43:27 -07:00 • committed by Ingo Molnar

parent 2dc807b37b

commit c2e6d65bce

1 changed files with 65 additions and 12 deletions

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arch/x86/mm/init_64.c

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