2ef2f11955
The `Resource` class can be used to obtain a gem5 resource. The `Resource` class, via the `downloader` package, parses the gem5 resources `resources.json` file: https://gem5.googlesource.com/public/gem5-resources/+/refs/heads/develop/resources.json From this it can determine the available resources and where to download them. This allows for automatic retrieval of resources. The `CustomResource` can be used to specify a local resource not part of gem5 resources. The board's `set_workload` function has been updated to use the resources. The components library example scripts have been updated to demonstrate the `Resource`/`CustomResource` class usage. Issue-on: https://gem5.atlassian.net/browse/GEM5-1022 Change-Id: I59cfe81d5ec9c64576c0dab55af52aede96976fb Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/49304 Reviewed-by: Austin Harris <austin.dane.harris@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
133 lines
4.2 KiB
Python
133 lines
4.2 KiB
Python
# Copyright (c) 2021 The Regents of the University of California
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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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"""
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This example runs a simple boot exit test.
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Characteristics
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---------------
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* Runs exclusively on the X86 ISA with the MESI_TWO_LEVEL coherence protocol.
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"""
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import m5
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from m5.objects import Root
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import sys
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import os
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# This is a lame hack to get the imports working correctly.
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# TODO: This needs fixed.
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sys.path.append(
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os.path.join(
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os.path.dirname(os.path.abspath(__file__)),
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os.pardir,
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os.pardir,
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os.pardir,
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)
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)
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from components_library.runtime import (
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get_runtime_coherence_protocol,
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get_runtime_isa,
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)
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from components_library.boards.x86_board import X86Board
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from components_library.memory.single_channel import SingleChannelDDR3_1600
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from components_library.processors.simple_processor import SimpleProcessor
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from components_library.processors.cpu_types import CPUTypes
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from components_library.isas import ISA
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from components_library.coherence_protocol import CoherenceProtocol
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from components_library.resources.resource import Resource
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import os
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# Run a check to ensure the right version of gem5 is being used.
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if (
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get_runtime_coherence_protocol() != CoherenceProtocol.MESI_TWO_LEVEL
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or get_runtime_isa() != ISA.X86
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):
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raise EnvironmentError(
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"The boot-exit-disk_run.py should be run with X86_MESI_Two_Level."
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)
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from components_library.cachehierarchies.\
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ruby.mesi_two_level_cache_hierarchy import (
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MESITwoLevelCacheHierarchy,
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)
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# Setup the cache heirarchy to be MESI_Two_Level.
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cache_hierarchy = MESITwoLevelCacheHierarchy(
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l1d_size="32kB",
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l1d_assoc=8,
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l1i_size="32kB",
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l1i_assoc=8,
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l2_size="256kB",
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l2_assoc=16,
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num_l2_banks=1,
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)
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# Setup the system memory.
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# Warning: This must be kept at 3GB for now. X86Motherboard does not support
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# anything else right now!
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memory = SingleChannelDDR3_1600(size="3GB")
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# Setup a single core Timing Processor.
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processor = SimpleProcessor(cpu_type=CPUTypes.TIMING, num_cores=1)
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# Setup the motherboard.
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motherboard = X86Board(
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clk_freq="3GHz",
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processor=processor,
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memory=memory,
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cache_hierarchy=cache_hierarchy,
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exit_on_work_items=True,
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)
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motherboard.connect_things()
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# Set the Full System workload.
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motherboard.set_workload(
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kernel=Resource("x86-linux-kernel-5.4.49"),
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disk_image=Resource("x86-boot-exit"), command="m5 exit \n"
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)
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# Begin running of the simulation. This will exit once the Linux system boot
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# is complete.
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print("Running with ISA: " + get_runtime_isa().name)
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print("Running with protocol: " + get_runtime_coherence_protocol().name)
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print()
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root = Root(full_system=True, system=motherboard)
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m5.instantiate()
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print("Beginning simulation!")
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exit_event = m5.simulate()
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print(
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"Exiting @ tick {} because {}.".format(m5.curTick(), exit_event.getCause())
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)
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