diff options
Diffstat (limited to 'tools/microcode-tool.py')
| -rwxr-xr-x | tools/microcode-tool.py | 90 |
1 files changed, 70 insertions, 20 deletions
diff --git a/tools/microcode-tool.py b/tools/microcode-tool.py index 003716d..71c2e91 100755 --- a/tools/microcode-tool.py +++ b/tools/microcode-tool.py @@ -76,6 +76,35 @@ def ParseFile(fname): microcodes[name] = Microcode(name, data) return date, license_text, microcodes +def ParseHeaderFiles(fname_list): + """Parse a list of header files and return the component parts + + Args: + fname_list: List of files to parse + Returns: + date: String containing date from the file's header + license_text: List of text lines for the license file + microcodes: List of Microcode objects from the file + """ + microcodes = {} + license_text = [] + date = '' + name = None + for fname in fname_list: + name = os.path.basename(fname).lower() + name = os.path.splitext(name)[0] + data = [] + with open(fname) as fd: + for line in fd: + line = line.rstrip() + + # Omit anything after the last comma + words = line.split(',')[:-1] + data += [word + ',' for word in words] + microcodes[name] = Microcode(name, data) + return date, license_text, microcodes + + def List(date, microcodes, model): """List the available microcode chunks @@ -129,13 +158,13 @@ def FindMicrocode(microcodes, model): break return found, tried -def CreateFile(date, license_text, mcode, outfile): +def CreateFile(date, license_text, mcodes, outfile): """Create a microcode file in U-Boot's .dtsi format Args: date: String containing date of original microcode file license: List of text lines for the license file - mcode: Microcode object to write + mcodes: Microcode objects to write (normally only 1) outfile: Filename to write to ('-' for stdout) """ out = '''/*%s @@ -159,15 +188,22 @@ intel,processor-flags = <%#x>; data = <%s \t>;''' words = '' - for i in range(len(mcode.words)): - if not (i & 3): - words += '\n' - val = mcode.words[i] - # Change each word so it will be little-endian in the FDT - # This data is needed before RAM is available on some platforms so we - # cannot do an endianness swap on boot. - val = struct.unpack("<I", struct.pack(">I", val))[0] - words += '\t%#010x' % val + add_comments = len(mcodes) > 1 + for mcode in mcodes: + if add_comments: + words += '\n/* %s */' % mcode.name + for i in range(len(mcode.words)): + if not (i & 3): + words += '\n' + val = mcode.words[i] + # Change each word so it will be little-endian in the FDT + # This data is needed before RAM is available on some platforms so + # we cannot do an endianness swap on boot. + val = struct.unpack("<I", struct.pack(">I", val))[0] + words += '\t%#010x' % val + + # Use the first microcode for the headers + mcode = mcodes[0] # Take care to avoid adding a space before a tab text = '' @@ -187,8 +223,8 @@ data = <%s print >> sys.stderr, "Creating directory '%s'" % MICROCODE_DIR os.makedirs(MICROCODE_DIR) outfile = os.path.join(MICROCODE_DIR, mcode.name + '.dtsi') - print >> sys.stderr, "Writing microcode for '%s' to '%s'" % ( - mcode.name, outfile) + print >> sys.stderr, "Writing microcode for '%s' to '%s'" % ( + ', '.join([mcode.name for mcode in mcodes]), outfile) with open(outfile, 'w') as fd: print >> fd, out % tuple(args) @@ -198,8 +234,12 @@ def MicrocodeTool(): parser = OptionParser() parser.add_option('-d', '--mcfile', type='string', action='store', help='Name of microcode.dat file') + parser.add_option('-H', '--headerfile', type='string', action='append', + help='Name of .h file containing microcode') parser.add_option('-m', '--model', type='string', action='store', - help='Model name to extract') + help="Model name to extract ('all' for all)") + parser.add_option('-M', '--multiple', type='string', action='store', + help="Allow output of multiple models") parser.add_option('-o', '--outfile', type='string', action='store', help='Filename to use for output (- for stdout), default is' ' %s/<name>.dtsi' % MICROCODE_DIR) @@ -224,9 +264,14 @@ def MicrocodeTool(): if cmd not in commands: parser.error("Unknown command '%s'" % cmd) - if not options.mcfile: - parser.error('You must specify a microcode file') - date, license_text, microcodes = ParseFile(options.mcfile) + if (not not options.mcfile) != (not not options.mcfile): + parser.error("You must specify either header files or a microcode file, not both") + if options.headerfile: + date, license_text, microcodes = ParseHeaderFiles(options.headerfile) + elif options.mcfile: + date, license_text, microcodes = ParseFile(options.mcfile) + else: + parser.error('You must specify a microcode file (or header files)') if cmd == 'list': List(date, microcodes, options.model) @@ -236,16 +281,21 @@ def MicrocodeTool(): if not options.model: parser.error('You must specify a model to create') model = options.model.lower() - mcode_list, tried = FindMicrocode(microcodes, model) + if options.model == 'all': + options.multiple = True + mcode_list = microcodes.values() + tried = [] + else: + mcode_list, tried = FindMicrocode(microcodes, model) if not mcode_list: parser.error("Unknown model '%s' (%s) - try 'list' to list" % (model, ', '.join(tried))) - if len(mcode_list) > 1: + if not options.multiple and len(mcode_list) > 1: parser.error("Ambiguous model '%s' (%s) matched %s - try 'list' " "to list or specify a particular file" % (model, ', '.join(tried), ', '.join([m.name for m in mcode_list]))) - CreateFile(date, license_text, mcode_list[0], options.outfile) + CreateFile(date, license_text, mcode_list, options.outfile) else: parser.error("Unknown command '%s'" % cmd) |