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https://github.com/chipsec/chipsec
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CHIPSEC
124 lines
3.7 KiB
Python
124 lines
3.7 KiB
Python
#!/usr/local/bin/python
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#CHIPSEC: Platform Security Assessment Framework
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#Copyright (c) 2010-2014, 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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# usage as a standalone utility:
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#
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## \addtogroup standalone
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#chipsec_util mmcfg
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#------
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#~~~
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#chipsec_util mmcfg
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#chipsec_util mmcfg <bus> <device> <function> <offset> <width> [value]
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#''
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# Examples:
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#''
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# chipsec_util mmcfg
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# chipsec_util mmcfg 0 0 0 0x88 4
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# chipsec_util mmcfg 0 0 0 0x88 byte 0x1A
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# chipsec_util mmcfg 0 0x1F 0 0xDC 1 0x1
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# chipsec_util mmcfg 0 0 0 0x98 dword 0x004E0040
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#~~~
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__version__ = '1.0'
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import os
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import sys
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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.mmio import *
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usage = "chipsec_util mmcfg <bus> <device> <function> <offset> <width> [value]\n" + \
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"Examples:\n" + \
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" chipsec_util mmcfg 0 0 0 0x88 4\n" + \
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" chipsec_util mmcfg 0 0 0 0x88 byte 0x1A\n" + \
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" chipsec_util mmcfg 0 0x1F 0 0xDC 1 0x1\n" + \
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" chipsec_util mmcfg 0 0 0 0x98 dword 0x004E0040\n\n"
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# ###################################################################
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#
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# Access to Memory Mapped PCIe Configuration Space (MMCFG)
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#
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# ###################################################################
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def mmcfg(argv):
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t = time.time()
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if 2 == len(argv):
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#pciexbar = get_PCIEXBAR_base_address( chipsec_util._cs )
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pciexbar = get_MMCFG_base_address( chipsec_util._cs )
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logger().log( "[CHIPSEC] Memory Mapped Config Base: 0x%016X" % pciexbar )
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return
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elif 6 > len(argv):
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print usage
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return
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try:
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bus = int(argv[2],16)
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device = int(argv[3],16)
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function = int(argv[4],16)
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offset = int(argv[5],16)
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if 6 == len(argv):
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width = 1
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else:
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if 'byte' == argv[6]:
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width = 1
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elif 'word' == argv[6]:
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width = 2
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elif 'dword' == argv[6]:
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width = 4
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else:
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width = int(argv[6])
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except Exception as e :
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print usage
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return
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if 8 == len(argv):
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value = int(argv[7], 16)
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write_mmcfg_reg( chipsec_util._cs, bus, device, function, offset, width, value )
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#_cs.pci.write_mmcfg_reg( bus, device, function, offset, width, value )
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logger().log( "[CHIPSEC] writing MMCFG register (%02d:%02d.%d + 0x%02X): 0x%X" % (bus, device, function, offset, value) )
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else:
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value = read_mmcfg_reg( chipsec_util._cs, bus, device, function, offset, width )
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#value = _cs.pci.read_mmcfg_reg( bus, device, function, offset, width )
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logger().log( "[CHIPSEC] reading MMCFG register (%02d:%02d.%d + 0x%02X): 0x%X" % (bus, device, function, offset, value) )
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logger().log( "[CHIPSEC] (mmcfg) time elapsed %.3f" % (time.time()-t) )
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chipsec_util.commands['mmcfg'] = {'func' : mmcfg , 'start_driver' : True, 'help' : usage }
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