Re: [PATCH] x86: fix init_memory_mapping over boundary v2

[Yinghai Lu]

On Fri, Jun 27, 2008 at 11:35 PM, Ingo Molnar <mingo@xxxxxxx> wrote:
>
> * Yinghai Lu <yhlu.kernel@xxxxxxxxx> wrote:
>
>> some end boundary is only page alignment, instead of 2M alignment, so
>> call ker_phycial_mapping_init three times. then don't overmap above
>> the max_low_pfn
>
> applied to tip/x86/unify-setup, thanks Yinghai.
>
>> v2: make init_memory_mapping more solid: start could be any value
>> other than 0
>
> very good idea!

could change
map_pfn_mapped = init_memory_mapping(0, map_low_pfn<<PAGE_SHIFT);
to
map_pfn_mapped = init_memory_mapping(map_pfn_mapped<<PAGE_SHIFT,
map_low_pfn<<PAGE_SHIFT);

only concern is
init_memory_mapping set   _EXEC in page table for kernel code.

YH
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