xen: partially revert "xen: set max_pfn_mapped to the last pfn mapped"

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We only need to set max_pfn_mapped to the last pfn mapped on x86_64 to
make sure that cleanup_highmap doesn't remove important mappings at
_end.

We don't need to do this on x86_32 because cleanup_highmap is not called
on x86_32. Besides lowering max_pfn_mapped on x86_32 has the unwanted
side effect of limiting the amount of memory available for the 1:1
kernel pagetable allocation.

This patch reverts the x86_32 part of the original patch.

CC: stable@kernel.org
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

...

This commit is contained in:

Stefano Stabellini 2011-06-03 09:51:34 +00:00 • committed by Konrad Rzeszutek Wilk

parent f124c6ae59

commit a91d92875e

1 changed files with 8 additions and 1 deletions

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arch/x86/xen/mmu.c

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