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https://github.com/chipsec/chipsec
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Sae86
c7259cfac0
Modifying copyright date. Hal msg bus - removed non working link Hal spd - changed simmtester links to functioning ones Cfg sfdp - added docstring utilcmd mem_cmd - removed random lonely colon Modules-Common-cpu-cpuinfo and iauntrusted - added temp docstrings Tools-vmm-hv and xen folders -> imports needed more detail Modules Me mfg mode - fixed error caused by asterisk in links
82 lines
3.0 KiB
Python
82 lines
3.0 KiB
Python
#CHIPSEC: Platform Security Assessment Framework
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#Copyright (c) 2018 - 2021, 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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Displays CPU information
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"""
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import struct
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from chipsec.module_common import BaseModule, ModuleResult
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from chipsec.defines import bytestostring
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class cpu_info(BaseModule):
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def __init__(self):
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super(cpu_info, self).__init__()
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def is_supported(self):
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return True
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def run(self, module_argv):
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# Log the start of the test
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self.logger.start_test('Current Processor Information:')
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self.res = ModuleResult.INFORMATION
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# Determine number of threads to check
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thread_count = 1
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if not self.cs.helper.is_efi():
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thread_count = self.cs.msr.get_cpu_thread_count()
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for thread in range(thread_count):
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# Handle processor binding so we are allways checking processor 0
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# for this example. No need to do this in UEFI Shell.
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if not self.cs.helper.is_efi():
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self.cs.helper.set_affinity(thread)
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# Display thread
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self.logger.log('[*] Thread {:04d}'.format(thread))
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# Get processor brand string
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brand = ''
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for eax_val in [0x80000002, 0x80000003, 0x80000004]:
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regs = self.cs.cpu.cpuid(eax_val, 0)
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for i in range(4):
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brand += bytestostring(struct.pack('<I', regs[i]))
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brand = brand.rstrip('\x00')
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self.logger.log('[*] Processor: {}'.format(brand))
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# Get processor version information
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(eax, ebx, ecx, edx) = self.cs.cpu.cpuid(0x01, 0x00)
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stepping = eax & 0xF
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model = (eax >> 4) & 0xF
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family = (eax >> 8) & 0xF
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if family == 0x0F or family == 0x06:
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model = ((eax >> 12) & 0xF0) | model
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if family == 0x0F:
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family = ((eax >> 20) & 0xFF) | family
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self.logger.log('[*] Family: {:02X} Model: {:02X} Stepping: {:01X}'.format(family, model, stepping))
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# Get microcode revision
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microcode_rev = self.cs.read_register_field('IA32_BIOS_SIGN_ID', 'Microcode', cpu_thread=thread)
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self.logger.log('[*] Microcode: {:08X}'.format(microcode_rev))
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self.logger.log('[*]')
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self.logger.log_information_check('Processor information displayed')
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return self.res
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