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Add code to parse the devicetree memory nodes, memory reservations block, and reserved memory nodes to construct an ordered and non-overlapping description of the system memory map, and use this to identify a suitable address to which iPXE may be relocated at runtime. We choose to place iPXE on a superpage boundary (as required by the paging code), and to use the highest available address within accessible memory. This mirrors the approach taken for x86 BIOS builds, where we have long assumed that any image format that we might need to support may require specific fixed addresses towards the bottom of the memory map, but is very unlikely to require specific fixed addresses towards the top of the memory map (since those addresses may not exist, depending on the amount of installed RAM). Signed-off-by: Michael Brown <mcb30@ipxe.org>
iPXE README File Quick start guide: cd src make For any more detailed instructions, see http://ipxe.org