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The UEFI specification does not prohibit zero-length DMA mappings. However, there is a reasonable chance that at least one implementation will treat it as an invalid parameter. As a precaution, avoid calling EFI_PCI_IO_PROTOCOL.Map() with a length of zero. 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
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