x86: Add /sys/firmware/memmap

From: Bernhard Walle
Date: Fri Jun 27 2008 - 07:12:29 EST

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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.

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Next message: Bernhard Walle: "[PATCH 2/2] Use FIRMWARE_MEMMAP on x86/E820"
Previous message: Louis Rilling: "[BUGFIX][PATCH] configfs: Fix open directory making rmdir() fail"
In reply to: Bernhard Walle: "Re: [PATCH 1/2] Add /sys/firmware/memmap"
Next in thread: Bernhard Walle: "[PATCH 2/2] Use FIRMWARE_MEMMAP on x86/E820"
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