src/cpu/kvm/BaseKvmCPU.py

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  35
  36 from m5.SimObject import *
  37 from m5.params import *
  38 from m5.proxy import *
  39
  40 from m5.objects.BaseCPU import BaseCPU
  41 from m5.objects.KvmVM import KvmVM
  42
  43 class BaseKvmCPU(BaseCPU):
  44     type = 'BaseKvmCPU'
  45     cxx_header = "cpu/kvm/base.hh"
  46     abstract = True
  47
  48     @cxxMethod
  49     def dump(self):
  50         """Dump the internal state of KVM to standard out."""
  51         pass
  52
  53     @classmethod
  54     def memory_mode(cls):
  55         return 'atomic_noncaching'
  56
  57     @classmethod
  58     def require_caches(cls):
  59         return False
  60
  61     @classmethod
  62     def support_take_over(cls):
  63         return True
  64
  65     useCoalescedMMIO = Param.Bool(False, "Use coalesced MMIO (EXPERIMENTAL)")
  66     usePerfOverflow = Param.Bool(False, "Use perf event overflow counters (EXPERIMENTAL)")
  67     alwaysSyncTC = Param.Bool(False,
  68                               "Always sync thread contexts on entry/exit")
  69
  70     hostFreq = Param.Clock("2GHz", "Host clock frequency")
  71     hostFactor = Param.Float(1.0, "Cycle scale factor")