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https://github.com/chipsec/chipsec
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CHIPSEC
110 lines
3.2 KiB
Python
110 lines
3.2 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 mem
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#-------
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#~~~
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#chipsec_util mem <phys_addr_hi> <phys_addr_lo> <length> [value]
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#''
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# Examples:
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#''
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# chipsec_util mem 0x0 0x41E 0x20
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# chipsec_util mem 0x0 0xA0000 4 0x9090CCCC
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# chipsec_util mem 0x0 0xFED40000 0x4
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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.physmem import Memory
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#_cs = cs()
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usage = "chipsec_util mem <phys_addr_hi> <phys_addr_lo> <length> [value]\n" + \
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"Examples:\n" + \
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" chipsec_util mem 0x0 0x41E 0x20\n" + \
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" chipsec_util mem 0x0 0xA0000 4 0x9090CCCC\n" + \
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" chipsec_util mem 0x0 0xFED40000 0x4\n" + \
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" chipsec_util mem allocate 0x1000\n\n"
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# ###################################################################
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#
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# Physical Memory
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#
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# ###################################################################
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def mem(argv):
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phys_address_hi = 0
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phys_address_lo = 0
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phys_address = 0
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size = 0x100
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if 3 > len(argv):
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print usage
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return
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op = argv[2]
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t = time.time()
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if 'allocate' == op and 4 == len(argv):
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size = int(argv[3],16)
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(va, pa) = chipsec_util._cs.mem.alloc_physical_mem( size )
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logger().log( '[CHIPSEC] Allocated %X bytes of physical memory: VA = 0x%016X, PA = 0x%016X' % (size, va, pa) )
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return
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if 4 > len(argv):
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print usage
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return
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else:
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phys_address_hi = int(argv[2],16)
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phys_address_lo = int(argv[3],16)
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phys_address = ((phys_address_hi<<32) | phys_address_lo)
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if 6 == len(argv):
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value = int(argv[5],16)
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logger().log( '[CHIPSEC] Writing: PA = 0x%016X <- 0x%08X' % (phys_address, value) )
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chipsec_util._cs.mem.write_physical_mem_dword( phys_address, value )
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else:
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if 5 == len(argv): size = int(argv[4],16)
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out_buf = chipsec_util._cs.mem.read_physical_mem( phys_address, size )
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logger().log( '[CHIPSEC] Reading: PA = 0x%016X, len = 0x%X, output:' % (phys_address, len(out_buf)) )
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print_buffer( out_buf )
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logger().log( "[CHIPSEC] (mem) time elapsed %.3f" % (time.time()-t) )
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chipsec_util.commands['mem'] = {'func' : mem, 'start_driver' : True, 'help' : usage }
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