0172089203
This is particularly useful for ROMs. It avoids forcing other components of the simulation (the System object, the Workload object) from having to know what ROMs exist, where they are, and what goes on them, and leaves that to the config script. Change-Id: Ibbcffffcb82e0d289f0b3942728c30b8f69d28ba Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/27267 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com> Tested-by: Gem5 Cloud Project GCB service account <345032938727@cloudbuild.gserviceaccount.com> Tested-by: kokoro <noreply+kokoro@google.com>
72 lines
3.6 KiB
Python
72 lines
3.6 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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# Copyright (c) 2005-2008 The Regents of The University of Michigan
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# All rights reserved.
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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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from m5.params import *
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from m5.objects.ClockedObject import ClockedObject
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class AbstractMemory(ClockedObject):
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type = 'AbstractMemory'
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abstract = True
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cxx_header = "mem/abstract_mem.hh"
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# A default memory size of 128 MB (starting at 0) is used to
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# simplify the regressions
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range = Param.AddrRange('128MB', "Address range (potentially interleaved)")
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null = Param.Bool(False, "Do not store data, always return zero")
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# All memories are passed to the global physical memory, and
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# certain memories may be excluded from the global address map,
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# e.g. by the testers that use shadow memories as a reference
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in_addr_map = Param.Bool(True, "Memory part of the global address map")
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# When KVM acceleration is used, memory is mapped into the guest process
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# address space and accessed directly. Some memories may need to be
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# excluded from this mapping if they overlap with other memory ranges or
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# are not accessible by the CPU.
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kvm_map = Param.Bool(True, "Should KVM map this memory for the guest")
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# Should the bootloader include this memory when passing
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# configuration information about the physical memory layout to
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# the kernel, e.g. using ATAG or ACPI
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conf_table_reported = Param.Bool(True, "Report to configuration table")
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# Image file to load into this memory as its initial contents. This is
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# particularly useful for ROMs.
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image_file = Param.String('',
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"Image to load into memory as its initial contents")
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