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# Copyright (c) 2012 ARM Limited
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#
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# to a hardware implementation of the functionality of the software
# licensed hereunder. You may use the software subject to the license
# terms below provided that you ensure that this notice is replicated
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# modified or unmodified, in source code or in binary form.
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# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
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# neither the name of the copyright holders nor the names of its
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# this software without specific prior written permission.
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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from abc import ABCMeta, abstractmethod
import m5
from m5.objects import *
from m5.proxy import *
m5.util.addToPath("../configs/")
from common.Benchmarks import SysConfig
from common import FSConfig, SysPaths
from common.Caches import *
from base_config import *
class LinuxX86SystemBuilder(object):
"""Mix-in that implements create_system.
This mix-in is intended as a convenient way of adding an
X86-specific create_system method to a class deriving from one of
the generic base systems.
"""
def __init__(self):
pass
def create_system(self):
mdesc = SysConfig(disks=["linux-x86.img"])
system = FSConfig.makeLinuxX86System(
self.mem_mode, numCPUs=self.num_cpus, mdesc=mdesc
)
system.kernel = SysPaths.binary("x86_64-vmlinux-2.6.22.9")
self.init_system(system)
return system
class LinuxX86FSSystem(LinuxX86SystemBuilder, BaseFSSystem):
"""Basic X86 full system builder."""
def __init__(self, **kwargs):
"""Initialize an X86 system that supports full system simulation.
Note: Keyword arguments that are not listed below will be
passed to the BaseFSSystem.
Keyword Arguments:
machine_type -- String describing the platform to simulate
"""
BaseSystem.__init__(self, **kwargs)
LinuxX86SystemBuilder.__init__(self)
def create_caches_private(self, cpu):
cpu.addPrivateSplitL1Caches(
L1_ICache(size="32kB", assoc=1),
L1_DCache(size="32kB", assoc=4),
PageTableWalkerCache(),
PageTableWalkerCache(),
)
class LinuxX86FSSystemUniprocessor(
LinuxX86SystemBuilder, BaseFSSystemUniprocessor
):
"""Basic X86 full system builder for uniprocessor systems.
Note: This class is a specialization of the X86FSSystem and is
only really needed to provide backwards compatibility for existing
test cases.
"""
def __init__(self, **kwargs):
BaseFSSystemUniprocessor.__init__(self, **kwargs)
LinuxX86SystemBuilder.__init__(self)
def create_caches_private(self, cpu):
cpu.addTwoLevelCacheHierarchy(
L1_ICache(size="32kB", assoc=1),
L1_DCache(size="32kB", assoc=4),
L2Cache(size="4MB", assoc=8),
PageTableWalkerCache(),
PageTableWalkerCache(),
)
class LinuxX86FSSwitcheroo(LinuxX86SystemBuilder, BaseFSSwitcheroo):
"""Uniprocessor X86 system prepared for CPU switching"""
def __init__(self, **kwargs):
BaseFSSwitcheroo.__init__(self, **kwargs)
LinuxX86SystemBuilder.__init__(self)