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.
