system.hh revision 2902
12SN/A/* 21762SN/A * Copyright (c) 2002-2005 The Regents of The University of Michigan 32SN/A * All rights reserved. 42SN/A * 52SN/A * Redistribution and use in source and binary forms, with or without 62SN/A * modification, are permitted provided that the following conditions are 72SN/A * met: redistributions of source code must retain the above copyright 82SN/A * notice, this list of conditions and the following disclaimer; 92SN/A * redistributions in binary form must reproduce the above copyright 102SN/A * notice, this list of conditions and the following disclaimer in the 112SN/A * documentation and/or other materials provided with the distribution; 122SN/A * neither the name of the copyright holders nor the names of its 132SN/A * contributors may be used to endorse or promote products derived from 142SN/A * this software without specific prior written permission. 152SN/A * 162SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 182SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 192SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 202SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 232SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 242SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 252SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 262SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665Ssaidi@eecs.umich.edu * 282665Ssaidi@eecs.umich.edu * Authors: Steve Reinhardt 292665Ssaidi@eecs.umich.edu * Lisa Hsu 302665Ssaidi@eecs.umich.edu * Nathan Binkert 312SN/A */ 322SN/A 332SN/A#ifndef __SYSTEM_HH__ 342SN/A#define __SYSTEM_HH__ 352SN/A 362SN/A#include <string> 3775SN/A#include <vector> 382SN/A 392439SN/A#include "base/loader/symtab.hh" 402439SN/A#include "base/misc.hh" 41603SN/A#include "base/statistics.hh" 42603SN/A#include "cpu/pc_event.hh" 432520SN/A#include "mem/port.hh" 442378SN/A#include "sim/sim_object.hh" 452378SN/A#if FULL_SYSTEM 46722SN/A#include "kern/system_events.hh" 472521SN/A#include "mem/vport.hh" 482378SN/A#endif 49312SN/A 501634SN/Aclass BaseCPU; 512680Sktlim@umich.educlass ThreadContext; 521634SN/Aclass ObjectFile; 532521SN/Aclass PhysicalMemory; 542378SN/A 552378SN/A#if FULL_SYSTEM 56803SN/Aclass Platform; 572378SN/Aclass GDBListener; 582SN/Aclass RemoteGDB; 592378SN/A#endif 602SN/A 612SN/Aclass System : public SimObject 622SN/A{ 63603SN/A public: 642901Ssaidi@eecs.umich.edu enum MemoryMode { 652901Ssaidi@eecs.umich.edu Invalid=0, 662901Ssaidi@eecs.umich.edu Atomic, 672901Ssaidi@eecs.umich.edu Timing 682901Ssaidi@eecs.umich.edu }; 692901Ssaidi@eecs.umich.edu 702902Ssaidi@eecs.umich.edu static const char *MemoryModeStrings[3]; 712902Ssaidi@eecs.umich.edu 722901Ssaidi@eecs.umich.edu 732901Ssaidi@eecs.umich.edu MemoryMode getMemoryMode() { assert(memoryMode); return memoryMode; } 742901Ssaidi@eecs.umich.edu 752901Ssaidi@eecs.umich.edu /** Change the memory mode of the system. This should only be called by the 762901Ssaidi@eecs.umich.edu * python!! 772901Ssaidi@eecs.umich.edu * @param mode Mode to change to (atomic/timing) 782901Ssaidi@eecs.umich.edu */ 792901Ssaidi@eecs.umich.edu void setMemoryMode(MemoryMode mode); 802901Ssaidi@eecs.umich.edu 812521SN/A PhysicalMemory *physmem; 822SN/A PCEventQueue pcEventQueue; 832SN/A 842680Sktlim@umich.edu std::vector<ThreadContext *> threadContexts; 851806SN/A int numcpus; 861806SN/A 871806SN/A int getNumCPUs() 881806SN/A { 892680Sktlim@umich.edu if (numcpus != threadContexts.size()) 901806SN/A panic("cpu array not fully populated!"); 911806SN/A 921806SN/A return numcpus; 931806SN/A } 94180SN/A 952378SN/A#if FULL_SYSTEM 962378SN/A Platform *platform; 972378SN/A uint64_t init_param; 982378SN/A 992520SN/A /** Port to physical memory used for writing object files into ram at 1002520SN/A * boot.*/ 1012520SN/A FunctionalPort functionalPort; 1022521SN/A VirtualPort virtPort; 1032520SN/A 1041885SN/A /** kernel symbol table */ 1051070SN/A SymbolTable *kernelSymtab; 106954SN/A 1071070SN/A /** Object pointer for the kernel code */ 1081070SN/A ObjectFile *kernel; 1091070SN/A 1101070SN/A /** Begining of kernel code */ 1111070SN/A Addr kernelStart; 1121070SN/A 1131070SN/A /** End of kernel code */ 1141070SN/A Addr kernelEnd; 1151070SN/A 1161070SN/A /** Entry point in the kernel to start at */ 1171070SN/A Addr kernelEntry; 1181070SN/A 1192378SN/A#else 1202378SN/A 1212378SN/A int page_ptr; 1222378SN/A 1232378SN/A 1242378SN/A#endif // FULL_SYSTEM 1252378SN/A 1261885SN/A protected: 1271885SN/A 1282901Ssaidi@eecs.umich.edu MemoryMode memoryMode; 1292901Ssaidi@eecs.umich.edu 1302424SN/A#if FULL_SYSTEM 1311885SN/A /** 1321885SN/A * Fix up an address used to match PCs for hooking simulator 1331885SN/A * events on to target function executions. See comment in 1341885SN/A * system.cc for details. 1351885SN/A */ 1362158SN/A virtual Addr fixFuncEventAddr(Addr addr) = 0; 1371885SN/A 1381885SN/A /** 1391885SN/A * Add a function-based event to the given function, to be looked 1401885SN/A * up in the specified symbol table. 1411885SN/A */ 1421885SN/A template <class T> 1431885SN/A T *System::addFuncEvent(SymbolTable *symtab, const char *lbl) 1441885SN/A { 1451913SN/A Addr addr = 0; // initialize only to avoid compiler warning 1461885SN/A 1471885SN/A if (symtab->findAddress(lbl, addr)) { 1481885SN/A T *ev = new T(&pcEventQueue, lbl, fixFuncEventAddr(addr)); 1491885SN/A return ev; 1501885SN/A } 1511885SN/A 1521885SN/A return NULL; 1531885SN/A } 1541885SN/A 1551885SN/A /** Add a function-based event to kernel code. */ 1561885SN/A template <class T> 1571885SN/A T *System::addKernelFuncEvent(const char *lbl) 1581885SN/A { 1591885SN/A return addFuncEvent<T>(kernelSymtab, lbl); 1601885SN/A } 1611885SN/A 1622378SN/A#endif 16377SN/A public: 1642378SN/A#if FULL_SYSTEM 1651070SN/A std::vector<RemoteGDB *> remoteGDB; 1661070SN/A std::vector<GDBListener *> gdbListen; 1672158SN/A virtual bool breakpoint() = 0; 1682378SN/A#endif // FULL_SYSTEM 1691070SN/A 1701070SN/A public: 1711070SN/A struct Params 1721070SN/A { 1731070SN/A std::string name; 1742521SN/A PhysicalMemory *physmem; 1752902Ssaidi@eecs.umich.edu MemoryMode mem_mode; 1762378SN/A 1772378SN/A#if FULL_SYSTEM 1781634SN/A Tick boot_cpu_frequency; 1792567SN/A std::string boot_osflags; 1801070SN/A uint64_t init_param; 1811070SN/A 1821070SN/A std::string kernel_path; 1832158SN/A std::string readfile; 1842378SN/A#endif 1852158SN/A }; 1861070SN/A 1872158SN/A protected: 1882158SN/A Params *_params; 1891070SN/A 1902158SN/A public: 1911070SN/A System(Params *p); 1922SN/A ~System(); 1932SN/A 1941129SN/A void startup(); 1951129SN/A 1962158SN/A const Params *params() const { return (const Params *)_params; } 1972158SN/A 1981070SN/A public: 1992378SN/A 2002378SN/A#if FULL_SYSTEM 2011070SN/A /** 2021070SN/A * Returns the addess the kernel starts at. 2031070SN/A * @return address the kernel starts at 2041070SN/A */ 2051070SN/A Addr getKernelStart() const { return kernelStart; } 2061070SN/A 2071070SN/A /** 2081070SN/A * Returns the addess the kernel ends at. 2091070SN/A * @return address the kernel ends at 2101070SN/A */ 2111070SN/A Addr getKernelEnd() const { return kernelEnd; } 2121070SN/A 2131070SN/A /** 2141070SN/A * Returns the addess the entry point to the kernel code. 2151070SN/A * @return entry point of the kernel code 2161070SN/A */ 2171070SN/A Addr getKernelEntry() const { return kernelEntry; } 2181070SN/A 2192378SN/A#else 2202378SN/A 2212378SN/A Addr new_page(); 2222378SN/A 2232378SN/A#endif // FULL_SYSTEM 2242378SN/A 2252680Sktlim@umich.edu int registerThreadContext(ThreadContext *tc, int tcIndex); 2262680Sktlim@umich.edu void replaceThreadContext(ThreadContext *tc, int tcIndex); 2271070SN/A 2281070SN/A void serialize(std::ostream &os); 2291070SN/A void unserialize(Checkpoint *cp, const std::string §ion); 2302SN/A 23177SN/A public: 2322SN/A //////////////////////////////////////////// 2332SN/A // 2342SN/A // STATIC GLOBAL SYSTEM LIST 2352SN/A // 2362SN/A //////////////////////////////////////////// 2372SN/A 2382SN/A static std::vector<System *> systemList; 2392SN/A static int numSystemsRunning; 2402SN/A 2412SN/A static void printSystems(); 2422158SN/A 2432158SN/A 2442SN/A}; 2452SN/A 2462SN/A#endif // __SYSTEM_HH__ 247