1# Copyright (c) 2016-2017 ARM Limited
2# All rights reserved.
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license

--- 43 unchanged lines hidden (view full) ---

52from common import SysPaths
53from common import CpuConfig
54from common.cores.arm import ex5_big, ex5_LITTLE
55
56import devices
57from devices import AtomicCluster, KvmCluster
58
59
60default_dtb = 'armv8_gem5_v1_big_little_2_2.dtb'
61default_kernel = 'vmlinux4.3.aarch64'
62default_disk = 'aarch64-ubuntu-trusty-headless.img'
63default_rcs = 'bootscript.rcS'
64
65default_mem_size= "2GB"
66
67def _to_ticks(value):
68 """Helper function to convert a latency from string format to Ticks"""

--- 79 unchanged lines hidden (view full) ---

148# Only add the KVM CPU if it has been compiled into gem5
149if devices.have_kvm:
150 cpu_types["kvm"] = (KvmCluster, KvmCluster)
151
152
153def addOptions(parser):
154 parser.add_argument("--restore-from", type=str, default=None,
155 help="Restore from checkpoint")
156 parser.add_argument("--dtb", type=str, default=default_dtb,
157 help="DTB file to load")
158 parser.add_argument("--kernel", type=str, default=default_kernel,
159 help="Linux kernel")
160 parser.add_argument("--disk", action="append", type=str, default=[],
161 help="Disks to instantiate")
162 parser.add_argument("--bootscript", type=str, default=default_rcs,
163 help="Linux bootscript")
164 parser.add_argument("--cpu-type", type=str, choices=cpu_types.keys(),

--- 79 unchanged lines hidden (view full) ---

244 if options.little_cpus > 0 and system.littleCluster.requireCaches():
245 m5.util.panic("Little CPU model requires caches")
246
247 # Create a KVM VM and do KVM-specific configuration
248 if issubclass(big_model, KvmCluster):
249 _build_kvm(system, all_cpus)
250
251 # Linux device tree
252 system.dtb_filename = SysPaths.binary(options.dtb)
253
254 return root
255
256def _build_kvm(system, cpus):
257 system.kvm_vm = KvmVM()
258
259 # Assign KVM CPUs to their own event queues / threads. This
260 # has to be done after creating caches and other child objects
261 # since these mustn't inherit the CPU event queue.

--- 64 unchanged lines hidden ---