mirror of
https://github.com/chipsec/chipsec
synced 2026-06-08 13:31:00 +00:00
Sae86
bd9cfe0b95
Update usage in argparser
Update for more than one class
Signed-off-by: Sae86 <sara.batllori@intel.com>
144 lines
4.8 KiB
Python
144 lines
4.8 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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Command-line utility providing access to IOMMU engines
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>>> chipsec_util iommu list
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>>> chipsec_util iommu config [iommu_engine]
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>>> chipsec_util iommu status [iommu_engine]
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>>> chipsec_util iommu enable|disable <iommu_engine>
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>>> chipsec_util iommu pt
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Examples:
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>>> chipsec_util iommu list
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>>> chipsec_util iommu config VTD
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>>> chipsec_util iommu status GFXVTD
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>>> chipsec_util iommu enable VTD
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>>> chipsec_util iommu pt
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"""
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from chipsec.command import BaseCommand
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from chipsec.hal import acpi, iommu
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from argparse import ArgumentParser
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from chipsec.exceptions import IOMMUError, AcpiRuntimeError
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import time
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# I/O Memory Management Unit (IOMMU), e.g. Intel VT-d
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class IOMMUCommand(BaseCommand):
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def requires_driver(self):
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parser = ArgumentParser(prog='chipsec_util iommu', usage=__doc__)
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subparsers = parser.add_subparsers()
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parser_list = subparsers.add_parser('list')
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parser_list.set_defaults(func=self.iommu_list)
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parser_config = subparsers.add_parser('config')
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parser_config.add_argument('engine', type=str, default='', nargs='?', help='IOMMU Engine')
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parser_config.set_defaults(func=self.iommu_config)
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parser_status = subparsers.add_parser('status')
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parser_status.add_argument('engine', type=str, default='', nargs='?', help='IOMMU Engine')
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parser_status.set_defaults(func=self.iommu_status)
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parser_enable = subparsers.add_parser('enable')
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parser_enable.add_argument('engine', type=str, help='IOMMU Engine')
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parser_enable.set_defaults(func=self.iommu_enable)
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parser_disable = subparsers.add_parser('disable')
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parser_disable.add_argument('engine', type=str, help='IOMMU Engine')
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parser_disable.set_defaults(func=self.iommu_disable)
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parser_pt = subparsers.add_parser('pt')
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parser_pt.add_argument('engine', type=str, default='', nargs='?', help='IOMMU Engine')
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parser_pt.set_defaults(func=self.iommu_pt)
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parser.parse_args(self.argv[2:], namespace=self)
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return True
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def iommu_list(self):
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self.logger.log( "[CHIPSEC] Enumerating supported IOMMU engines.." )
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self.logger.log( iommu.IOMMU_ENGINES.keys() )
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def iommu_engine(self, cmd):
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try:
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_iommu = iommu.IOMMU(self.cs)
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except IOMMUError as msg:
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print (msg)
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return
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if self.engine:
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if self.engine in iommu.IOMMU_ENGINES.keys():
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_iommu_engines = [ self.engine ]
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else:
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self.logger.error( "IOMMU name {} not recognized. Run 'iommu list' command for supported IOMMU names".format(self.engine) )
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return
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else:
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_iommu_engines = iommu.IOMMU_ENGINES.keys()
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if 'config' == cmd:
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try:
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_acpi = acpi.ACPI( self.cs )
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except AcpiRuntimeError as msg:
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print (msg)
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return
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if _acpi.is_ACPI_table_present(acpi.ACPI_TABLE_SIG_DMAR):
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self.logger.log( "[CHIPSEC] Dumping contents of DMAR ACPI table..\n" )
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_acpi.dump_ACPI_table(acpi.ACPI_TABLE_SIG_DMAR)
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else:
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self.logger.log( "[CHIPSEC] Couldn't find DMAR ACPI table\n" )
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for e in _iommu_engines:
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if (cmd == 'config' ): _iommu.dump_IOMMU_configuration( e )
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elif (cmd == 'pt' ): _iommu.dump_IOMMU_page_tables( e )
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elif (cmd == 'status' ): _iommu.dump_IOMMU_status( e )
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elif (cmd == 'enable' ): _iommu.set_IOMMU_Translation( e, 1 )
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elif (cmd == 'disable'): _iommu.set_IOMMU_Translation( e, 0 )
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def iommu_config(self):
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self.iommu_engine('config')
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def iommu_status(self):
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self.iommu_engine('status')
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def iommu_enable(self):
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self.iommu_engine('enable')
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def iommu_disable(self):
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self.iommu_engine('disable')
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def iommu_pt(self):
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self.iommu_engine('pt')
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def run(self):
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t = time.time()
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self.func()
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self.logger.log( "[CHIPSEC] (iommu) time elapsed {:.3f}".format(time.time() -t) )
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commands = { 'iommu': IOMMUCommand }
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