mirror of
https://github.com/chipsec/chipsec
synced 2026-06-08 13:31:00 +00:00
Thiébaud Weksteen
97 lines
3.8 KiB
Python
97 lines
3.8 KiB
Python
#!/usr/bin/python
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#CHIPSEC: Platform Security Assessment Framework
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#Copyright (c) 2010-2015, Intel Corporation
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#
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#This program is free software; you can redistribute it and/or
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#modify it under the terms of the GNU General Public License
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#as published by the Free Software Foundation; Version 2.
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#
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#This program is distributed in the hope that it will be useful,
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#but WITHOUT ANY WARRANTY; without even the implied warranty of
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#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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#GNU General Public License for more details.
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#
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#You should have received a copy of the GNU General Public License
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#along with this program; if not, write to the Free Software
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#Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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#Contact information:
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#chipsec@intel.com
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#
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import time
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from chipsec.command import BaseCommand
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from chipsec.file import read_file
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from chipsec.hal.ucode import Ucode, dump_ucode_update_header
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# ###################################################################
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#
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# Microcode patches
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#
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# ###################################################################
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class UCodeCommand(BaseCommand):
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"""
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>>> chipsec_util ucode id|load|decode [ucode_update_file (in .PDB or .BIN format)] [cpu_id]
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Examples:
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>>> chipsec_util ucode id
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>>> chipsec_util ucode load ucode.bin 0
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>>> chipsec_util ucode decode ucode.pdb
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"""
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def requires_driver(self):
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# No driver required when printing the util documentation
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if len(self.argv) < 3:
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return False
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return True
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def run(self):
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if len(self.argv) < 3:
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print UCodeCommand.__doc__
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return
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ucode_op = self.argv[2]
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t = time.time()
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if ( 'load' == ucode_op ):
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if (4 == len(self.argv)):
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ucode_filename = self.argv[3]
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self.logger.log( "[CHIPSEC] Loading Microcode update on all cores from '%s'" % ucode_filename )
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self.cs.ucode.update_ucode_all_cpus( ucode_filename )
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elif (5 == len(self.argv)):
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ucode_filename = self.argv[3]
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cpu_thread_id = int(self.argv[4],16)
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self.logger.log( "[CHIPSEC] Loading Microcode update on CPU%d from '%s'" % (cpu_thread_id, ucode_filename) )
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self.cs.ucode.update_ucode( cpu_thread_id, ucode_filename )
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else:
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print UCodeCommand.__doc__
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return
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elif ( 'decode' == ucode_op ):
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if (4 == len(self.argv)):
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ucode_filename = self.argv[3]
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if (not ucode_filename.endswith('.pdb')):
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self.logger.log( "[CHIPSEC] Ucode update file is not PDB file: '%s'" % ucode_filename )
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return
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pdb_ucode_buffer = read_file( ucode_filename )
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self.logger.log( "[CHIPSEC] Decoding Microcode Update header of PDB file: '%s'" % ucode_filename )
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dump_ucode_update_header( pdb_ucode_buffer )
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elif ( 'id' == ucode_op ):
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if (3 == len(self.argv)):
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for tid in range(self.cs.msr.get_cpu_thread_count()):
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ucode_update_id = self.cs.ucode.ucode_update_id( tid )
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self.logger.log( "[CHIPSEC] CPU%d: Microcode update ID = 0x%08X" % (tid, ucode_update_id) )
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elif (4 == len(self.argv)):
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cpu_thread_id = int(self.argv[3],16)
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ucode_update_id = self.cs.ucode.ucode_update_id( cpu_thread_id )
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self.logger.log( "[CHIPSEC] CPU%d: Microcode update ID = 0x%08X" % (cpu_thread_id, ucode_update_id) )
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else:
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self.logger.error( "unknown command-line option '%.32s'" % ucode_op )
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print UCodeCommand.__doc__
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return
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self.logger.log( "[CHIPSEC] (ucode) time elapsed %.3f" % (time.time()-t) )
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commands = { 'ucode': UCodeCommand }
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