mirror of
https://github.com/chipsec/chipsec
synced 2026-06-08 13:31:00 +00:00
abazhaniuk
c377a72e28
* merge * Add Debian packaging * cleanup * Removed incorrect info into Copyright. * One more: removed incorrect info in Copyright.
118 lines
3.8 KiB
Python
118 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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"""
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Command-line utility providing access to IOMMU engines
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"""
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__version__ = '1.0'
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import time
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import chipsec_util
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from chipsec.logger import *
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from chipsec.file import *
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from chipsec.hal import acpi, iommu
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from chipsec.command import BaseCommand
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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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"""
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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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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 IOMMUCommand.__doc__
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return
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op = self.argv[2]
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t = time.time()
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try:
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_iommu = iommu.IOMMU(self.cs)
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except IOMMUError, msg:
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print msg
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return
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if ( 'list' == op ):
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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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elif ( 'config' == op or 'status' == op or 'enable' == op or 'disable' == op ):
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if len(self.argv) > 3:
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if self.argv[3] in iommu.IOMMU_ENGINES.keys():
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_iommu_engines = [ self.argv[3] ]
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else:
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self.logger.error( "IOMMU name %s not recognized. Run 'iommu list' command for supported IOMMU names" % self.argv[3] )
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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' == op:
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try:
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_acpi = acpi.ACPI( self.cs )
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except acpi.AcpiRuntimeError, 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 'config' == op: _iommu.dump_IOMMU_configuration( e )
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elif 'pt' == op: _iommu.dump_IOMMU_page_tables( e )
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elif 'status' == op: _iommu.dump_IOMMU_status( e )
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elif 'enable' == op: _iommu.set_IOMMU_Translation( e, 1 )
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elif 'disable' == op: _iommu.set_IOMMU_Translation( e, 0 )
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else:
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print IOMMUCommand.__doc__
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return
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self.logger.log( "[CHIPSEC] (iommu) time elapsed %.3f" % (time.time()-t) )
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commands = { 'iommu': IOMMUCommand }
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