mirror of
https://github.com/chipsec/chipsec
synced 2026-06-08 13:31:00 +00:00
BrentHoltsclaw
105 lines
3.3 KiB
Python
105 lines
3.3 KiB
Python
#!/usr/bin/python
|
|
#CHIPSEC: Platform Security Assessment Framework
|
|
#Copyright (c) 2010-2015, Intel Corporation
|
|
#
|
|
#This program is free software; you can redistribute it and/or
|
|
#modify it under the terms of the GNU General Public License
|
|
#as published by the Free Software Foundation; Version 2.
|
|
#
|
|
#This program is distributed in the hope that it will be useful,
|
|
#but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
#GNU General Public License for more details.
|
|
#
|
|
#You should have received a copy of the GNU General Public License
|
|
#along with this program; if not, write to the Free Software
|
|
#Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
#
|
|
#Contact information:
|
|
#chipsec@intel.com
|
|
#
|
|
|
|
|
|
import time
|
|
|
|
import chipsec_util
|
|
|
|
|
|
from chipsec.logger import *
|
|
from chipsec.file import *
|
|
|
|
from chipsec.hal import mmio
|
|
from chipsec.command import BaseCommand
|
|
|
|
|
|
# ###################################################################
|
|
#
|
|
# Access to Memory Mapped PCIe Configuration Space (MMCFG)
|
|
#
|
|
# ###################################################################
|
|
class MMIOCommand(BaseCommand):
|
|
"""
|
|
>>> chipsec_util mmio list
|
|
>>> chipsec_util mmio dump <MMIO_BAR_name>
|
|
>>> chipsec_util mmio read <MMIO_BAR_name> <offset> <width>
|
|
>>> chipsec_util mmio write <MMIO_BAR_name> <offset> <width> <value>
|
|
|
|
Examples:
|
|
|
|
>>> chipsec_util mmio list
|
|
>>> chipsec_util mmio dump MCHBAR
|
|
>>> chipsec_util mmio read SPIBAR 0x74 0x4
|
|
>>> chipsec_util mmio write SPIBAR 0x74 0x4 0xFFFF0000
|
|
"""
|
|
|
|
def requires_driver(self):
|
|
# No driver required when printing the util documentation
|
|
if len(self.argv) < 3:
|
|
return False
|
|
return True
|
|
|
|
def run(self):
|
|
t = time.time()
|
|
_mmio = mmio.MMIO(self.cs)
|
|
|
|
if len(self.argv) < 3:
|
|
print (MMIOCommand.__doc__)
|
|
return
|
|
|
|
op = self.argv[2]
|
|
t = time.time()
|
|
|
|
if ( 'list' == op ):
|
|
_mmio.list_MMIO_BARs()
|
|
elif ( 'dump' == op ):
|
|
bar = self.argv[3].upper()
|
|
self.logger.log( "[CHIPSEC] Dumping {} MMIO space..".format(bar) )
|
|
_mmio.dump_MMIO_BAR(bar)
|
|
elif ( 'read' == op ):
|
|
bar = self.argv[3].upper()
|
|
off = int(self.argv[4],16)
|
|
width = int(self.argv[5],16) if len(self.argv) == 6 else 4
|
|
reg = _mmio.read_MMIO_BAR_reg(bar, off, width)
|
|
self.logger.log( "[CHIPSEC] Read {} + 0x{:X}: 0x{:08X}".format(bar,off,reg) )
|
|
elif ( 'write' == op ):
|
|
bar = self.argv[3].upper()
|
|
off = int(self.argv[4],16)
|
|
width = int(self.argv[5],16) if len(self.argv) == 6 else 4
|
|
if len(self.argv) == 7:
|
|
reg = int(self.argv[6],16)
|
|
self.logger.log( "[CHIPSEC] Write {} + 0x{:X}: 0x{:08X}".format(bar,off,reg) )
|
|
_mmio.write_MMIO_BAR_reg(bar, off, reg, width)
|
|
else:
|
|
print (MMIOCommand.__doc__)
|
|
return
|
|
else:
|
|
self.logger.error( "unknown command-line option '{:32}'".format(op) )
|
|
print (MMIOCommand.__doc__)
|
|
return
|
|
|
|
self.logger.log( "[CHIPSEC] (mmio) time elapsed {:.3f}".format(time.time()-t) )
|
|
|
|
|
|
commands = { 'mmio': MMIOCommand }
|
|
|