41beacce08
A KVM VM is typically a child of the System object already, but for solving future issues with configuration graph resolution, the most logical way to keep track of this object is for it to be an actual parameter of the System object. Change-Id: I965ded22203ff8667db9ca02de0042ff1c772220 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
74 lines
3 KiB
Python
74 lines
3 KiB
Python
# Copyright (c) 2012 ARM Limited
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# All rights reserved.
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#
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# The license below extends only to copyright in the software and shall
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# not be construed as granting a license to any other intellectual
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# property including but not limited to intellectual property relating
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# to a hardware implementation of the functionality of the software
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# licensed hereunder. You may use the software subject to the license
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# terms below provided that you ensure that this notice is replicated
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# unmodified and in its entirety in all distributions of the software,
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# modified or unmodified, in source code or in binary form.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Andreas Sandberg
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from m5.params import *
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from m5.proxy import *
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from BaseCPU import BaseCPU
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from KvmVM import KvmVM
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class BaseKvmCPU(BaseCPU):
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type = 'BaseKvmCPU'
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cxx_header = "cpu/kvm/base.hh"
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abstract = True
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@classmethod
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def export_methods(cls, code):
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code('''
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void dump() const;
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''')
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@classmethod
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def memory_mode(cls):
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return 'atomic_noncaching'
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@classmethod
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def require_caches(cls):
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return False
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@classmethod
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def support_take_over(cls):
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return True
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useCoalescedMMIO = Param.Bool(False, "Use coalesced MMIO (EXPERIMENTAL)")
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usePerfOverflow = Param.Bool(False, "Use perf event overflow counters (EXPERIMENTAL)")
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alwaysSyncTC = Param.Bool(False,
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"Always sync thread contexts on entry/exit")
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hostFreq = Param.Clock("2GHz", "Host clock frequency")
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hostFactor = Param.Float(1.0, "Cycle scale factor")
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