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https://github.com/chipsec/chipsec
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CHIPSEC
0654edca19
Revision 1.2.0 -------------- This version includes the following new or updated modules: #. Merged common.secureboot.keys module into common.secureboot.variables module #. Updated tools.secureboot.te module to be able to test PE/TE issue on Linux or UEFI shell #. Updated tools.smm.smm_ptr module This version includes the following updates: #. Added the *controls* abstraction. Modules are encouraged to use ``get_control`` and ``set_control`` when interacting with platform registers. This permits greater flexibility in case the register that controls a given feature or configuration changes between platform generations. The controls are defined in the platform XML file. At this time, only a small number of controls are defined. We plan to move existing modules over to this new mechanism. #. Added XML Schema for the XML configuration files #. Support for reading, writing, and listing UEFI variables from the UEFI Shell environment has been added. #. Added support for decompression while SPI flash parsing via ``decode`` or ``uefi decode`` commands in Linux #. Added basic ACPI table parsing to HAL (RSDP, RSDT/XSDT, APIC, DMAR) #. Added UEFI tables searching and parsing to HAL (EFI system table, runtime services table, boot services table, DXE services table, EFI configuration table) #. Added DIMM Serial Presence Detect (SPD) ROM dumping and parsing to HAL #. Added ``uefi s3bootscript`` command parsing the S3 boot script to chipsec_util.py #. Added virtual-to-physical address translation function to Linux/EFI/Windows helpers #. Added support of server platforms (Haswell server and Ivy Town) to chipset.py This version has the following known issues: #. Decompression of images in SPI flash parsing is not available in UEFI shell. #. When calling alloc_phys_mem, the argument to set maximum physical address (max_pa) for allocation is ignored on linux. A message will be printed in dmesg if the allocation is above the max_pa that is passed in, but the call will return anyway. #. UEFI Shell environment does not support ``cpuid`` or ``get_thread_count``. There are functions that simply warn that they are not supported. #. Size of PCIEXBAR (MMCFG) is calculated incorrectly
106 lines
3.5 KiB
Python
106 lines
3.5 KiB
Python
#!/usr/local/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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#
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# CHIPSEC: Platform Hardware Security Assessment Framework
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# (c) 2010-2012 Intel Corporation
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#
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# -------------------------------------------------------------------------------
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"""
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Access to Port I/O
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usage:
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>>> read_port_byte( 0x61 )
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>>> read_port_word( 0x61 )
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>>> read_port_dword( 0x61 )
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>>> write_port_byte( 0x71, 0 )
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>>> write_port_word( 0x71, 0 )
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>>> write_port_dword( 0x71, 0 )
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"""
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__version__ = '1.0'
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import struct
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import sys
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import os.path
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from chipsec.logger import logger
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class PortIORuntimeError (RuntimeError):
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pass
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class PortIO:
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def __init__( self, cs ):
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self.helper = cs.helper
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self.cs = cs
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def _read_port(self, io_port, size ):
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value = self.helper.read_io_port( io_port, size )
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if logger().VERBOSE: logger().log( "[io] IN 0x%04X: value = 0x%08X, size = 0x%02x" % (io_port, value, size) )
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return value
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def _write_port(self, io_port, value, size ):
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if logger().VERBOSE: logger().log( "[io] OUT 0x%04X: value = 0x%08X, size = 0x%02x" % (io_port, value, size) )
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status = self.helper.write_io_port( io_port, value, size )
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return status
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def read_port_dword(self, io_port ):
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value = self.helper.read_io_port( io_port, 4 )
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if logger().VERBOSE:
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logger().log( "[io] reading dword from I/O port 0x%04X -> 0x%08X" % (io_port, value) )
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return value
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def read_port_word(self, io_port ):
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value = self.helper.read_io_port( io_port, 2 )
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if logger().VERBOSE:
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logger().log( "[io] reading word from I/O port 0x%04X -> 0x%04X" % (io_port, value) )
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return value
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def read_port_byte(self, io_port ):
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value = self.helper.read_io_port( io_port, 1 )
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if logger().VERBOSE:
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logger().log( "[io] reading byte from I/O port 0x%04X -> 0x%02X" % (io_port, value) )
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return value
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def write_port_byte(self, io_port, value ):
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if logger().VERBOSE:
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logger().log( "[io] writing byte to I/O port 0x%04X <- 0x%02X" % (io_port, value) )
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self.helper.write_io_port( io_port, value, 1 )
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return
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def write_port_word(self, io_port, value ):
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if logger().VERBOSE:
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logger().log( "[io] writing word to I/O port 0x%04X <- 0x%04X" % (io_port, value) )
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self.helper.write_io_port( io_port, value, 2 )
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return
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def write_port_dword(self, io_port, value ):
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if logger().VERBOSE:
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logger().log( "[io] writing dword to I/O port 0x%04X <- 0x%08X" % (io_port, value) )
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self.helper.write_io_port( io_port, value, 4 )
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return
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