+# Copyright (c) 2017 ARM Limited
+# All rights reserved.
+#
+# The license below extends only to copyright in the software and shall
+# not be construed as granting a license to any other intellectual
+# property including but not limited to intellectual property relating
+# 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
+# unmodified and in its entirety in all distributions of the software,
+# modified or unmodified, in source code or in binary form.
+#
# Copyright (c) 2005-2007 The Regents of The University of Michigan
# Copyright (c) 2011 Regents of the University of California
# All rights reserved.
# Authors: Nathan Binkert
# Rick Strong
-from m5.SimObject import SimObject
+from m5.SimObject import *
from m5.defines import buildEnv
from m5.params import *
from m5.proxy import *
-from PhysicalMemory import *
+from DVFSHandler import *
+from SimpleMemory import *
-class MemoryMode(Enum): vals = ['invalid', 'atomic', 'timing']
+class MemoryMode(Enum): vals = ['invalid', 'atomic', 'timing',
+ 'atomic_noncaching']
-class System(SimObject):
+class System(MemObject):
type = 'System'
+ cxx_header = "sim/system.hh"
+ system_port = MasterPort("System port")
- @classmethod
- def export_method_cxx_predecls(cls, code):
- code('#include "sim/system.hh"')
+ cxx_exports = [
+ PyBindMethod("getMemoryMode"),
+ PyBindMethod("setMemoryMode"),
+ ]
- @classmethod
- def export_methods(cls, code):
- code('''
- Enums::MemoryMode getMemoryMode();
- void setMemoryMode(Enums::MemoryMode mode);
-''')
-
- physmem = Param.PhysicalMemory("Physical Memory")
+ memories = VectorParam.AbstractMemory(Self.all,
+ "All memories in the system")
mem_mode = Param.MemoryMode('atomic', "The mode the memory system is in")
- memories = VectorParam.PhysicalMemory(Self.all, "All memories is the system")
+ thermal_model = Param.ThermalModel(NULL, "Thermal model")
+ thermal_components = VectorParam.SimObject([],
+ "A collection of all thermal components in the system.")
+
+ # When reserving memory on the host, we have the option of
+ # reserving swap space or not (by passing MAP_NORESERVE to
+ # mmap). By enabling this flag, we accommodate cases where a large
+ # (but sparse) memory is simulated.
+ mmap_using_noreserve = Param.Bool(False, "mmap the backing store " \
+ "without reserving swap")
+
+ # The memory ranges are to be populated when creating the system
+ # such that these can be passed from the I/O subsystem through an
+ # I/O bridge or cache
+ mem_ranges = VectorParam.AddrRange([], "Ranges that constitute main memory")
+
+ cache_line_size = Param.Unsigned(64, "Cache line size in bytes")
+
+ exit_on_work_items = Param.Bool(False, "Exit from the simulation loop when "
+ "encountering work item annotations.")
work_item_id = Param.Int(-1, "specific work item id")
+ num_work_ids = Param.Int(16, "Number of distinct work item types")
work_begin_cpu_id_exit = Param.Int(-1,
"work started on specific id, now exit simulation")
work_begin_ckpt_count = Param.Counter(0,
init_param = Param.UInt64(0, "numerical value to pass into simulator")
boot_osflags = Param.String("a", "boot flags to pass to the kernel")
kernel = Param.String("", "file that contains the kernel code")
+ kernel_addr_check = Param.Bool(True,
+ "whether to address check on kernel (disable for baremetal)")
+ kernel_extras = VectorParam.String([],"Additional object files to load")
readfile = Param.String("", "file to read startup script from")
symbolfile = Param.String("", "file to get the symbols from")
- load_addr_mask = Param.UInt64(0xffffffffff,
- "Address to mask loading binaries with");
+ load_addr_mask = Param.UInt64(0xffffffffffffffff,
+ "Address to mask loading binaries with, if 0, system "
+ "auto-calculates the mask to be the most restrictive, "
+ "otherwise it obeys a custom mask.")
+ load_offset = Param.UInt64(0, "Address to offset loading binaries with")
+
+ multi_thread = Param.Bool(False,
+ "Supports multi-threaded CPUs? Impacts Thread/Context IDs")
+
+ # Dynamic voltage and frequency handler for the system, disabled by default
+ # Provide list of domains that need to be controlled by the handler
+ dvfs_handler = DVFSHandler()
+
+ if buildEnv['USE_KVM']:
+ kvm_vm = Param.KvmVM(NULL, 'KVM VM (i.e., shared memory domain)')