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diff --git a/qemu/roms/u-boot/lib/lzma/README.txt b/qemu/roms/u-boot/lib/lzma/README.txt
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+The lib_lzma functionality was written by Igor Pavlov.
+The original source cames from the LZMA SDK web page:
+
+URL: 		http://www.7-zip.org/sdk.html
+Author:         Igor Pavlov
+
+The import is made using the import_lzmasdk.sh script that:
+
+* untars the lzmaXYY.tar.bz2 file (from the download web page)
+* copies the files LzmaDec.h, Types.h, LzmaDec.c, history.txt,
+  and lzma.txt from source archive into the lib_lzma directory (pwd).
+
+Example:
+
+ . import_lzmasdk.sh ~/lzma465.tar.bz2
+
+Notice: The files from lzma sdk are _not modified_ by this script!
+
+The files LzmaTools.{c,h} are provided to export the lzmaBuffToBuffDecompress()
+function that wraps the complex LzmaDecode() function from the LZMA SDK. The
+do_bootm() function uses the lzmaBuffToBuffDecopress() function to expand the
+compressed image.
+
+The directory U-BOOT/include/lzma contains stubs files that permit to use the
+library directly from U-BOOT code without touching the original LZMA SDK's
+files.
+
+Luigi 'Comio' Mantellini <luigi.mantellini@idf-hit.com>