[PATCH] Limit E820 map and /proc/iomem for mem parameter on x86-64

Yinghai Lu yhlu.kernel at gmail.com
Thu Jun 12 21:43:09 EDT 2008

On Tue, Jun 10, 2008 at 2:53 PM, Bernhard Walle <bwalle at suse.de> wrote:
> This patch tries to unify the behaviour of i386 and x86-64 when parsing
> the memory (mem/memmap) parameter of the kernel command line:
> On i386, the view was limited (i.e. the actual view was presented).
> On x86-64, the view was full (i.e. the BIOS view was presented).
> This patch moves the limit_regions() function and the print_memory_map()
> function to a new file e820.c, shared between the two x86 flavours. Then
> it adds calls to limit_regions() in 64 bit code.
> I gave the patch a bit testing. However, it's not for merging, it's just
> to get early feedback to see if that goes into the right direction.

can you check tip/master about that e820 merge?


it made 32bit using e820_register_active_region...and limit_region in
32bit is remove.


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