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In a 64-bit build, the entirety of the 32-bit address space is identity-mapped and so any valid physical address may immediately be used as a virtual address. Conversely, a virtual address that is already within the 32-bit address space may immediately be used as a physical address. A valid virtual address that lies outside the 32-bit address space must be an address within .textdata, and so can be converted to a physical address by adding virt_offset. 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