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x86: Add /sys/firmware/memmap

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From: Bernhard Walle
Subject: x86: Add /sys/firmware/memmap
Date: Wednesday, June 25, 2008 - 12:57 pm

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. EFI is on the TODO
list, and other architectures can be added later.

This patch is RFC. It has been tested on x86-64 and i386 and
replaces my previous attemt that adds such an interface via
procfs.


Signed-off-by: Bernhard Walle <bwalle@suse.de>


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Messages in current thread:
x86: Add /sys/firmware/memmap, Bernhard Walle, (Wed Jun 25, 12:57 pm)
[PATCH 1/2] Add /sys/firmware/memmap, Bernhard Walle, (Wed Jun 25, 12:57 pm)
[PATCH 2/2] Use FIRMWARE_MEMMAP on x86/E820, Bernhard Walle, (Wed Jun 25, 12:57 pm)
Re: [PATCH 1/2] Add /sys/firmware/memmap, Vivek Goyal, (Wed Jun 25, 3:43 pm)
Re: [PATCH 1/2] Add /sys/firmware/memmap, Mikael Pettersson, (Thu Jun 26, 1:13 am)
Re: [PATCH 1/2] Add /sys/firmware/memmap, Bernhard Walle, (Thu Jun 26, 1:15 am)
Re: [PATCH 1/2] Add /sys/firmware/memmap, Bernhard Walle, (Thu Jun 26, 1:45 am)
Re: [PATCH 1/2] Add /sys/firmware/memmap, Mikael Pettersson, (Thu Jun 26, 2:11 am)
Re: [PATCH 1/2] Add /sys/firmware/memmap, Vivek Goyal, (Thu Jun 26, 5:42 am)
Re: [PATCH 1/2] Add /sys/firmware/memmap, H. Peter Anvin, (Thu Jun 26, 11:00 am)
Re: [PATCH 1/2] Add /sys/firmware/memmap, Vivek Goyal, (Thu Jun 26, 11:18 am)
Re: [PATCH 1/2] Add /sys/firmware/memmap, Bernhard Walle, (Thu Jun 26, 11:23 am)
Re: [PATCH 1/2] Add /sys/firmware/memmap, H. Peter Anvin, (Thu Jun 26, 12:18 pm)