system.hh revision 2986
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" 422986Sgblack@eecs.umich.edu#include "config/full_system.hh" 43603SN/A#include "cpu/pc_event.hh" 442520SN/A#include "mem/port.hh" 452378SN/A#include "sim/sim_object.hh" 462378SN/A#if FULL_SYSTEM 47722SN/A#include "kern/system_events.hh" 482521SN/A#include "mem/vport.hh" 492378SN/A#endif 50312SN/A 511634SN/Aclass BaseCPU; 522680Sktlim@umich.educlass ThreadContext; 531634SN/Aclass ObjectFile; 542521SN/Aclass PhysicalMemory; 552378SN/A 562378SN/A#if FULL_SYSTEM 57803SN/Aclass Platform; 582378SN/Aclass GDBListener; 592SN/Aclass RemoteGDB; 602378SN/A#endif 612SN/A 622SN/Aclass System : public SimObject 632SN/A{ 64603SN/A public: 652901Ssaidi@eecs.umich.edu enum MemoryMode { 662901Ssaidi@eecs.umich.edu Invalid=0, 672901Ssaidi@eecs.umich.edu Atomic, 682901Ssaidi@eecs.umich.edu Timing 692901Ssaidi@eecs.umich.edu }; 702901Ssaidi@eecs.umich.edu 712902Ssaidi@eecs.umich.edu static const char *MemoryModeStrings[3]; 722902Ssaidi@eecs.umich.edu 732901Ssaidi@eecs.umich.edu 742901Ssaidi@eecs.umich.edu MemoryMode getMemoryMode() { assert(memoryMode); return memoryMode; } 752901Ssaidi@eecs.umich.edu 762901Ssaidi@eecs.umich.edu /** Change the memory mode of the system. This should only be called by the 772901Ssaidi@eecs.umich.edu * python!! 782901Ssaidi@eecs.umich.edu * @param mode Mode to change to (atomic/timing) 792901Ssaidi@eecs.umich.edu */ 802901Ssaidi@eecs.umich.edu void setMemoryMode(MemoryMode mode); 812901Ssaidi@eecs.umich.edu 822521SN/A PhysicalMemory *physmem; 832SN/A PCEventQueue pcEventQueue; 842SN/A 852680Sktlim@umich.edu std::vector<ThreadContext *> threadContexts; 861806SN/A int numcpus; 871806SN/A 881806SN/A int getNumCPUs() 891806SN/A { 902680Sktlim@umich.edu if (numcpus != threadContexts.size()) 911806SN/A panic("cpu array not fully populated!"); 921806SN/A 931806SN/A return numcpus; 941806SN/A } 95180SN/A 962378SN/A#if FULL_SYSTEM 972378SN/A Platform *platform; 982378SN/A uint64_t init_param; 992378SN/A 1002520SN/A /** Port to physical memory used for writing object files into ram at 1012520SN/A * boot.*/ 1022520SN/A FunctionalPort functionalPort; 1032521SN/A VirtualPort virtPort; 1042520SN/A 1051885SN/A /** kernel symbol table */ 1061070SN/A SymbolTable *kernelSymtab; 107954SN/A 1081070SN/A /** Object pointer for the kernel code */ 1091070SN/A ObjectFile *kernel; 1101070SN/A 1111070SN/A /** Begining of kernel code */ 1121070SN/A Addr kernelStart; 1131070SN/A 1141070SN/A /** End of kernel code */ 1151070SN/A Addr kernelEnd; 1161070SN/A 1171070SN/A /** Entry point in the kernel to start at */ 1181070SN/A Addr kernelEntry; 1191070SN/A 1202378SN/A#else 1212378SN/A 1222378SN/A int page_ptr; 1232378SN/A 1242378SN/A 1252378SN/A#endif // FULL_SYSTEM 1262378SN/A 1271885SN/A protected: 1281885SN/A 1292901Ssaidi@eecs.umich.edu MemoryMode memoryMode; 1302901Ssaidi@eecs.umich.edu 1312424SN/A#if FULL_SYSTEM 1321885SN/A /** 1331885SN/A * Fix up an address used to match PCs for hooking simulator 1341885SN/A * events on to target function executions. See comment in 1351885SN/A * system.cc for details. 1361885SN/A */ 1372158SN/A virtual Addr fixFuncEventAddr(Addr addr) = 0; 1381885SN/A 1391885SN/A /** 1401885SN/A * Add a function-based event to the given function, to be looked 1411885SN/A * up in the specified symbol table. 1421885SN/A */ 1431885SN/A template <class T> 1441885SN/A T *System::addFuncEvent(SymbolTable *symtab, const char *lbl) 1451885SN/A { 1461913SN/A Addr addr = 0; // initialize only to avoid compiler warning 1471885SN/A 1481885SN/A if (symtab->findAddress(lbl, addr)) { 1491885SN/A T *ev = new T(&pcEventQueue, lbl, fixFuncEventAddr(addr)); 1501885SN/A return ev; 1511885SN/A } 1521885SN/A 1531885SN/A return NULL; 1541885SN/A } 1551885SN/A 1561885SN/A /** Add a function-based event to kernel code. */ 1571885SN/A template <class T> 1581885SN/A T *System::addKernelFuncEvent(const char *lbl) 1591885SN/A { 1601885SN/A return addFuncEvent<T>(kernelSymtab, lbl); 1611885SN/A } 1621885SN/A 1632378SN/A#endif 16477SN/A public: 1652378SN/A#if FULL_SYSTEM 1661070SN/A std::vector<RemoteGDB *> remoteGDB; 1671070SN/A std::vector<GDBListener *> gdbListen; 1682158SN/A virtual bool breakpoint() = 0; 1692378SN/A#endif // FULL_SYSTEM 1701070SN/A 1711070SN/A public: 1721070SN/A struct Params 1731070SN/A { 1741070SN/A std::string name; 1752521SN/A PhysicalMemory *physmem; 1762902Ssaidi@eecs.umich.edu MemoryMode mem_mode; 1772378SN/A 1782378SN/A#if FULL_SYSTEM 1791634SN/A Tick boot_cpu_frequency; 1802567SN/A std::string boot_osflags; 1811070SN/A uint64_t init_param; 1821070SN/A 1831070SN/A std::string kernel_path; 1842158SN/A std::string readfile; 1852378SN/A#endif 1862158SN/A }; 1871070SN/A 1882158SN/A protected: 1892158SN/A Params *_params; 1901070SN/A 1912158SN/A public: 1921070SN/A System(Params *p); 1932SN/A ~System(); 1942SN/A 1951129SN/A void startup(); 1961129SN/A 1972158SN/A const Params *params() const { return (const Params *)_params; } 1982158SN/A 1991070SN/A public: 2002378SN/A 2012378SN/A#if FULL_SYSTEM 2021070SN/A /** 2031070SN/A * Returns the addess the kernel starts at. 2041070SN/A * @return address the kernel starts at 2051070SN/A */ 2061070SN/A Addr getKernelStart() const { return kernelStart; } 2071070SN/A 2081070SN/A /** 2091070SN/A * Returns the addess the kernel ends at. 2101070SN/A * @return address the kernel ends at 2111070SN/A */ 2121070SN/A Addr getKernelEnd() const { return kernelEnd; } 2131070SN/A 2141070SN/A /** 2151070SN/A * Returns the addess the entry point to the kernel code. 2161070SN/A * @return entry point of the kernel code 2171070SN/A */ 2181070SN/A Addr getKernelEntry() const { return kernelEntry; } 2191070SN/A 2202378SN/A#else 2212378SN/A 2222378SN/A Addr new_page(); 2232378SN/A 2242378SN/A#endif // FULL_SYSTEM 2252378SN/A 2262680Sktlim@umich.edu int registerThreadContext(ThreadContext *tc, int tcIndex); 2272680Sktlim@umich.edu void replaceThreadContext(ThreadContext *tc, int tcIndex); 2281070SN/A 2291070SN/A void serialize(std::ostream &os); 2301070SN/A void unserialize(Checkpoint *cp, const std::string §ion); 2312SN/A 23277SN/A public: 2332SN/A //////////////////////////////////////////// 2342SN/A // 2352SN/A // STATIC GLOBAL SYSTEM LIST 2362SN/A // 2372SN/A //////////////////////////////////////////// 2382SN/A 2392SN/A static std::vector<System *> systemList; 2402SN/A static int numSystemsRunning; 2412SN/A 2422SN/A static void printSystems(); 2432158SN/A 2442158SN/A 2452SN/A}; 2462SN/A 2472SN/A#endif // __SYSTEM_HH__ 248