x86: Add /sys/firmware/memmap

[Vivek Goyal]

On Fri, Jun 27, 2008 at 01:12:53PM +0200, Bernhard Walle wrote:
> This patch series adds a new interface /sys/firmware/memmap to export
> the BIOS (Firmware) provided memory map via sysfs for usage with
> kexec.
> 
> While the first patch adds the generic interface, the second patch
> implements that interface for E820 on x86.
> 
> Change compared to previous commit:
> 
>  1. Comments from Greg KH.
>  2. Documentation.
> 
> The patch has been tested on i386 and x86_64 with success.

This patchset looks good to me. We do need this functionality for doing
the right thing for kexec and kdump users.

Acked-by: Vivek Goyal <vgoyal at redhat.com>

Thanks
Vivek