2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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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 "config/full_system.hh"
43 #include "cpu/pc_event.hh"
44 #include "enums/MemoryMode.hh"
45 #include "mem/port.hh"
46 #include "params/System.hh"
47 #include "sim/sim_object.hh"
49 #include "kern/system_events.hh"
50 #include "mem/vport.hh"
67 class System : public SimObject
71 static const char *MemoryModeStrings[3];
80 /** Change the memory mode of the system. This should only be called by the
82 * @param mode Mode to change to (atomic/timing)
84 void setMemoryMode(Enums::MemoryMode mode);
86 PhysicalMemory *physmem;
87 PCEventQueue pcEventQueue;
89 std::vector<ThreadContext *> threadContexts;
92 ThreadContext * getThreadContext(int tid)
94 return threadContexts[tid];
99 if (_numContexts != threadContexts.size())
100 panic("cpu array not fully populated!");
109 /** Port to physical memory used for writing object files into ram at
111 FunctionalPort functionalPort;
112 VirtualPort virtPort;
114 /** kernel symbol table */
115 SymbolTable *kernelSymtab;
117 /** Object pointer for the kernel code */
120 /** Begining of kernel code */
123 /** End of kernel code */
126 /** Entry point in the kernel to start at */
137 uint64_t allocatePID()
143 #endif // FULL_SYSTEM
146 Enums::MemoryMode memoryMode;
150 * Fix up an address used to match PCs for hooking simulator
151 * events on to target function executions. See comment in
152 * system.cc for details.
154 virtual Addr fixFuncEventAddr(Addr addr) = 0;
157 * Add a function-based event to the given function, to be looked
158 * up in the specified symbol table.
161 T *addFuncEvent(SymbolTable *symtab, const char *lbl)
163 Addr addr = 0; // initialize only to avoid compiler warning
165 if (symtab->findAddress(lbl, addr)) {
166 T *ev = new T(&pcEventQueue, lbl, fixFuncEventAddr(addr));
173 /** Add a function-based event to kernel code. */
175 T *addKernelFuncEvent(const char *lbl)
177 return addFuncEvent<T>(kernelSymtab, lbl);
182 std::vector<TheISA::RemoteGDB *> remoteGDB;
183 std::vector<GDBListener *> gdbListen;
187 typedef SystemParams Params;
198 const Params *params() const { return (const Params *)_params; }
204 * Returns the addess the kernel starts at.
205 * @return address the kernel starts at
207 Addr getKernelStart() const { return kernelStart; }
210 * Returns the addess the kernel ends at.
211 * @return address the kernel ends at
213 Addr getKernelEnd() const { return kernelEnd; }
216 * Returns the addess the entry point to the kernel code.
217 * @return entry point of the kernel code
219 Addr getKernelEntry() const { return kernelEntry; }
225 #endif // FULL_SYSTEM
227 int registerThreadContext(ThreadContext *tc);
228 void replaceThreadContext(ThreadContext *tc, int context_id);
230 void serialize(std::ostream &os);
231 void unserialize(Checkpoint *cp, const std::string §ion);
234 ////////////////////////////////////////////
236 // STATIC GLOBAL SYSTEM LIST
238 ////////////////////////////////////////////
240 static std::vector<System *> systemList;
241 static int numSystemsRunning;
243 static void printSystems();
248 #endif // __SYSTEM_HH__