mirror of
https://github.com/chipsec/chipsec
synced 2026-06-08 13:31:00 +00:00
Nathaniel Mitchell
86 lines
3.5 KiB
Python
86 lines
3.5 KiB
Python
# CHIPSEC: Platform Security Assessment Framework
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# Copyright (c) 2010-2021, 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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"""
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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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from chipsec.command import BaseCommand, toLoad
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from argparse import ArgumentParser
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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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def requirements(self) -> toLoad:
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return toLoad.Driver
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def parse_arguments(self) -> None:
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parser = ArgumentParser(usage=__doc__)
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subparsers = parser.add_subparsers()
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parser_id = subparsers.add_parser('id')
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parser_id.add_argument('cpu_thread_id', nargs='?', type=lambda x: int(x, 16), default=None, help='CPU ID (hex)')
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parser_id.set_defaults(func=self.ucode_id)
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parser_load = subparsers.add_parser('load')
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parser_load.add_argument('ucode_filename', type=str, help='ucode file name (.PDB or .BIN format)')
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parser_load.add_argument('cpu_thread_id', nargs='?', type=lambda x: int(x, 16), default=None, help='CPU ID (hex)')
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parser_load.set_defaults(func=self.ucode_load)
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parser_decode = subparsers.add_parser('decode')
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parser_decode.add_argument('ucode_filename', type=str, help='ucode file name (.PDB format)')
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parser.parse_args(self.argv, namespace=self)
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def ucode_id(self):
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if self.cpu_thread_id is None:
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for tid in range(self.cs.hals.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}".format(tid, ucode_update_id))
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else:
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ucode_update_id = self.cs.ucode.ucode_update_id(self.cpu_thread_id)
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self.logger.log("[CHIPSEC] CPU{:d}: Microcode update ID = 0x{:08X}".format(self.cpu_thread_id, ucode_update_id))
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def ucode_load(self):
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if self.cpu_thread_id is None:
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self.logger.log("[CHIPSEC] Loading Microcode update on all cores from '{}'".format(self.ucode_filename))
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self.cs.ucode.update_ucode_all_cpus(self.ucode_filename)
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else:
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self.logger.log("[CHIPSEC] Loading Microcode update on CPU{:d} from '{}'".format(self.cpu_thread_id, self.ucode_filename))
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self.cs.ucode.update_ucode(self.cpu_thread_id, self.ucode_filename)
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def ucode_decode(self):
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ucode_buffer = self.cs.hals.ucode.read_ucode_file(self.ucode_filename)
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self.logger.log("[CHIPSEC] Decoding Microcode Update header file: '{}'".format(self.ucode_filename))
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self.cs.hals.ucode.dump_ucode_update_header(ucode_buffer)
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commands = {'ucode': UCodeCommand}
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