1 # Copyright (c) 2012 ARM Limited
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
9 # terms below provided that you ensure that this notice is replicated
10 # unmodified and in its entirety in all distributions of the software,
11 # modified or unmodified, in source code or in binary form.
13 # Redistribution and use in source and binary forms, with or without
14 # modification, are permitted provided that the following conditions are
15 # met: redistributions of source code must retain the above copyright
16 # notice, this list of conditions and the following disclaimer;
17 # redistributions in binary form must reproduce the above copyright
18 # notice, this list of conditions and the following disclaimer in the
19 # documentation and/or other materials provided with the distribution;
20 # neither the name of the copyright holders nor the names of its
21 # contributors may be used to endorse or promote products derived from
22 # this software without specific prior written permission.
24 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
28 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 # Authors: Andreas Sandberg
38 from abc
import ABCMeta
, abstractmethod
40 from m5
.objects
import *
41 from m5
.proxy
import *
42 m5
.util
.addToPath('../configs/')
43 from common
.Benchmarks
import SysConfig
44 from common
import FSConfig
45 from common
.Caches
import *
46 from base_config
import *
48 class LinuxX86SystemBuilder(object):
49 """Mix-in that implements create_system.
51 This mix-in is intended as a convenient way of adding an
52 X86-specific create_system method to a class deriving from one of
53 the generic base systems.
58 def create_system(self
):
59 mdesc
= SysConfig(disk
= 'linux-x86.img')
60 system
= FSConfig
.makeLinuxX86System(self
.mem_mode
,
61 numCPUs
=self
.num_cpus
,
64 self
.init_system(system
)
67 class LinuxX86FSSystem(LinuxX86SystemBuilder
,
69 """Basic X86 full system builder."""
71 def __init__(self
, **kwargs
):
72 """Initialize an X86 system that supports full system simulation.
74 Note: Keyword arguments that are not listed below will be
75 passed to the BaseFSSystem.
78 machine_type -- String describing the platform to simulate
80 BaseSystem
.__init
__(self
, **kwargs
)
81 LinuxX86SystemBuilder
.__init
__(self
)
83 def create_caches_private(self
, cpu
):
84 cpu
.addPrivateSplitL1Caches(L1_ICache(size
='32kB', assoc
=1),
85 L1_DCache(size
='32kB', assoc
=4),
86 PageTableWalkerCache(),
87 PageTableWalkerCache())
89 class LinuxX86FSSystemUniprocessor(LinuxX86SystemBuilder
,
90 BaseFSSystemUniprocessor
):
91 """Basic X86 full system builder for uniprocessor systems.
93 Note: This class is a specialization of the X86FSSystem and is
94 only really needed to provide backwards compatibility for existing
98 def __init__(self
, **kwargs
):
99 BaseFSSystemUniprocessor
.__init
__(self
, **kwargs
)
100 LinuxX86SystemBuilder
.__init
__(self
)
102 def create_caches_private(self
, cpu
):
103 cpu
.addTwoLevelCacheHierarchy(L1_ICache(size
='32kB', assoc
=1),
104 L1_DCache(size
='32kB', assoc
=4),
105 L2Cache(size
='4MB', assoc
=8),
106 PageTableWalkerCache(),
107 PageTableWalkerCache())
110 class LinuxX86FSSwitcheroo(LinuxX86SystemBuilder
, BaseFSSwitcheroo
):
111 """Uniprocessor X86 system prepared for CPU switching"""
113 def __init__(self
, **kwargs
):
114 BaseFSSwitcheroo
.__init
__(self
, **kwargs
)
115 LinuxX86SystemBuilder
.__init
__(self
)