2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * Authors: Steve Reinhardt
39 #include "base/loader/symtab.hh"
40 #include "base/misc.hh"
41 #include "base/statistics.hh"
42 #include "cpu/pc_event.hh"
43 #include "mem/port.hh"
44 #include "sim/sim_object.hh"
46 #include "kern/system_events.hh"
47 #include "mem/vport.hh"
61 class System : public SimObject
70 static const char *MemoryModeStrings[3];
73 MemoryMode getMemoryMode() { assert(memoryMode); return memoryMode; }
75 /** Change the memory mode of the system. This should only be called by the
77 * @param mode Mode to change to (atomic/timing)
79 void setMemoryMode(MemoryMode mode);
81 PhysicalMemory *physmem;
82 PCEventQueue pcEventQueue;
84 std::vector<ThreadContext *> threadContexts;
89 if (numcpus != threadContexts.size())
90 panic("cpu array not fully populated!");
99 /** Port to physical memory used for writing object files into ram at
101 FunctionalPort functionalPort;
102 VirtualPort virtPort;
104 /** kernel symbol table */
105 SymbolTable *kernelSymtab;
107 /** Object pointer for the kernel code */
110 /** Begining of kernel code */
113 /** End of kernel code */
116 /** Entry point in the kernel to start at */
124 #endif // FULL_SYSTEM
128 MemoryMode memoryMode;
132 * Fix up an address used to match PCs for hooking simulator
133 * events on to target function executions. See comment in
134 * system.cc for details.
136 virtual Addr fixFuncEventAddr(Addr addr) = 0;
139 * Add a function-based event to the given function, to be looked
140 * up in the specified symbol table.
143 T *System::addFuncEvent(SymbolTable *symtab, const char *lbl)
145 Addr addr = 0; // initialize only to avoid compiler warning
147 if (symtab->findAddress(lbl, addr)) {
148 T *ev = new T(&pcEventQueue, lbl, fixFuncEventAddr(addr));
155 /** Add a function-based event to kernel code. */
157 T *System::addKernelFuncEvent(const char *lbl)
159 return addFuncEvent<T>(kernelSymtab, lbl);
165 std::vector<RemoteGDB *> remoteGDB;
166 std::vector<GDBListener *> gdbListen;
167 virtual bool breakpoint() = 0;
168 #endif // FULL_SYSTEM
174 PhysicalMemory *physmem;
178 Tick boot_cpu_frequency;
179 std::string boot_osflags;
182 std::string kernel_path;
183 std::string readfile;
196 const Params *params() const { return (const Params *)_params; }
202 * Returns the addess the kernel starts at.
203 * @return address the kernel starts at
205 Addr getKernelStart() const { return kernelStart; }
208 * Returns the addess the kernel ends at.
209 * @return address the kernel ends at
211 Addr getKernelEnd() const { return kernelEnd; }
214 * Returns the addess the entry point to the kernel code.
215 * @return entry point of the kernel code
217 Addr getKernelEntry() const { return kernelEntry; }
223 #endif // FULL_SYSTEM
225 int registerThreadContext(ThreadContext *tc, int tcIndex);
226 void replaceThreadContext(ThreadContext *tc, int tcIndex);
228 void serialize(std::ostream &os);
229 void unserialize(Checkpoint *cp, const std::string §ion);
232 ////////////////////////////////////////////
234 // STATIC GLOBAL SYSTEM LIST
236 ////////////////////////////////////////////
238 static std::vector<System *> systemList;
239 static int numSystemsRunning;
241 static void printSystems();
246 #endif // __SYSTEM_HH__