mirror of
https://github.com/chipsec/chipsec
synced 2026-06-08 13:31:00 +00:00
Thiébaud Weksteen
151 lines
6.2 KiB
Python
151 lines
6.2 KiB
Python
#!/usr/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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import time
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import chipsec.hal.cpu
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from chipsec.command import BaseCommand
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# ###################################################################
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#
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# CPU utility
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#
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# ###################################################################
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class CPUCommand(BaseCommand):
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"""
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>>> chipsec_util cpu info
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>>> chipsec_util cpu cr <cpu_id> <cr_number> [value]
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>>> chipsec_util cpu cpuid <eax> [ecx]
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>>> chipsec_util cpu pt [paging_base_cr3]
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Examples:
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>>> chipsec_util cpu info
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>>> chipsec_util cpu cr 0 0
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>>> chipsec_util cpu cr 0 4 0x0
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>>> chipsec_util cpu cpuid 40000000
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>>> chipsec_util cpu pt
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"""
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def requires_driver(self):
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# No driver required when printing the util documentation
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if len(self.argv) < 3:
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return False
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return True
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def run(self):
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if len(self.argv) < 3:
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print CPUCommand.__doc__
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return
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op = self.argv[2]
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t = time.time()
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if 'info' == op:
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self.logger.log( "[CHIPSEC] CPU information:" )
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ht = self.cs.cpu.is_HT_active()
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threads_per_core = self.cs.cpu.get_number_logical_processor_per_core()
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threads_per_pkg = self.cs.cpu.get_number_logical_processor_per_package()
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cores_per_pkg = self.cs.cpu.get_number_physical_processor_per_package()
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self.logger.log( " Hyper-Threading : %s" % ('Enabled' if ht else 'Disabled') )
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self.logger.log( " CPU cores per package : %d" % cores_per_pkg )
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self.logger.log( " CPU threads per core : %d" % threads_per_core )
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self.logger.log( " CPU threads per package : %d" % threads_per_pkg )
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try:
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threads_count = self.cs.cpu.get_number_threads_from_APIC_table()
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sockets_count = self.cs.cpu.get_number_sockets_from_APIC_table()
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self.logger.log( " Number of sockets : %d" % sockets_count )
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self.logger.log( " Number of CPU threads : %d" % threads_count )
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except:
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pass
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elif 'cr' == op:
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if len(self.argv) > 5:
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cpu_thread_id = int(self.argv[3],10)
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cr_number = int(self.argv[4],16)
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value = int(self.argv[5], 16)
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self.logger.log( "[CHIPSEC] CPU%d: write CR%d <- 0x%08X" % (cpu_thread_id, cr_number, value) )
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self.cs.cpu.write_cr( cpu_thread_id, cr_number, value )
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return True
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elif len(self.argv) > 4:
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cpu_thread_id = int(self.argv[3],10)
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cr_number = int(self.argv[4],16)
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value = self.cs.cpu.read_cr( cpu_thread_id, cr_number )
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self.logger.log( "[CHIPSEC] CPU%d: read CR%d -> 0x%08X" % (cpu_thread_id, cr_number, value) )
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return value
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else:
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for tid in range(self.cs.msr.get_cpu_thread_count()):
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cr0 = self.cs.cpu.read_cr( tid, 0 )
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cr2 = self.cs.cpu.read_cr( tid, 2 )
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cr3 = self.cs.cpu.read_cr( tid, 3 )
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cr4 = self.cs.cpu.read_cr( tid, 4 )
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cr8 = self.cs.cpu.read_cr( tid, 8 )
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self.logger.log( "[CHIPSEC][cpu%d] x86 Control Registers:" % tid )
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self.logger.log( " CR0: 0x%016X" % cr0 )
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self.logger.log( " CR2: 0x%016X" % cr2 )
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self.logger.log( " CR3: 0x%016X" % cr3 )
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self.logger.log( " CR4: 0x%016X" % cr4 )
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self.logger.log( " CR8: 0x%016X" % cr8 )
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elif 'cpuid' == op:
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if len(self.argv) < 4:
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print CPUCommand.__doc__
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return
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eax = int(self.argv[3],16)
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ecx = int(self.argv[4],16) if 5 == len(self.argv) else 0
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self.logger.log( "[CHIPSEC] CPUID < EAX: 0x%08X" % eax)
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self.logger.log( "[CHIPSEC] ECX: 0x%08X" % ecx)
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(_eax,_ebx,_ecx,_edx) = self.cs.cpu.cpuid( eax, ecx )
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self.logger.log( "[CHIPSEC] CPUID > EAX: 0x%08X" % _eax )
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self.logger.log( "[CHIPSEC] EBX: 0x%08X" % _ebx )
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self.logger.log( "[CHIPSEC] ECX: 0x%08X" % _ecx )
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self.logger.log( "[CHIPSEC] EDX: 0x%08X" % _edx )
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elif op == "pt":
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if len(self.argv) == 4:
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cr3 = int(self.argv[3],16)
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pt_fname = 'pt_%08X' % cr3
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self.logger.log( "[CHIPSEC] paging physical base (CR3): 0x%016X" % cr3 )
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self.logger.log( "[CHIPSEC] dumping paging hierarchy to '%s'..." % pt_fname )
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self.cs.cpu.dump_page_tables( cr3, pt_fname )
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else:
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for tid in range(self.cs.msr.get_cpu_thread_count()):
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cr3 = self.cs.cpu.read_cr( tid, 3 )
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pt_fname = 'cpu%d_pt_%08X' % (tid,cr3)
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self.logger.log( "[CHIPSEC][cpu%d] paging physical base (CR3): 0x%016X" % (tid,cr3) )
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self.logger.log( "[CHIPSEC][cpu%d] dumping paging hierarchy to '%s'..." % (tid,pt_fname) )
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self.cs.cpu.dump_page_tables( cr3, pt_fname )
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else:
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print CPUCommand.__doc__
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return
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self.logger.log( "[CHIPSEC] (cpu) time elapsed %.3f" % (time.time()-t) )
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commands = { 'cpu': CPUCommand }
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