af620e1187
arch/alpha/ev5.cc: set the mode explictly rather than having a bool user/notuser cpu/simple_cpu/simple_cpu.hh: there is no class Kernel kern/kernel_stats.cc: use cpu_mode_num kern/kernel_stats.hh: add interrupt mode and use cpu_mode_num rather than constant kern/linux/linux_system.cc: kern/linux/linux_system.hh: kern/system_events.cc: kern/system_events.hh: add events to change the mode to/from interrupt sim/system.cc: sim/system.hh: add a pal symbol table --HG-- extra : convert_revision : 9d30e826b72122062a5ea12d094f94760e75c66a
268 lines
7.6 KiB
C++
268 lines
7.6 KiB
C++
/*
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* Copyright (c) 2002-2004 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "base/loader/object_file.hh"
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#include "base/loader/symtab.hh"
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#include "base/remote_gdb.hh"
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#include "cpu/exec_context.hh"
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#include "kern/kernel_stats.hh"
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#include "mem/functional_mem/memory_control.hh"
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#include "mem/functional_mem/physical_memory.hh"
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#include "targetarch/vtophys.hh"
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#include "sim/param.hh"
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#include "sim/system.hh"
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#include "base/trace.hh"
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using namespace std;
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vector<System *> System::systemList;
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int System::numSystemsRunning = 0;
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extern SymbolTable *debugSymbolTable;
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System::System(Params *p)
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: SimObject(p->name), memctrl(p->memctrl), physmem(p->physmem),
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init_param(p->init_param), params(p)
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{
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// add self to global system list
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systemList.push_back(this);
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kernelSymtab = new SymbolTable;
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consoleSymtab = new SymbolTable;
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palSymtab = new SymbolTable;
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debugSymbolTable = new SymbolTable;
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/**
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* Load the kernel, pal, and console code into memory
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*/
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// Load kernel code
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kernel = createObjectFile(params->kernel_path);
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if (kernel == NULL)
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fatal("Could not load kernel file %s", params->kernel_path);
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// Load Console Code
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console = createObjectFile(params->console_path);
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if (console == NULL)
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fatal("Could not load console file %s", params->console_path);
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// Load pal file
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pal = createObjectFile(params->palcode);
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if (pal == NULL)
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fatal("Could not load PALcode file %s", params->palcode);
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// Load program sections into memory
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pal->loadSections(physmem, true);
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console->loadSections(physmem, true);
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kernel->loadSections(physmem, true);
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// setup entry points
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kernelStart = kernel->textBase();
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kernelEnd = kernel->bssBase() + kernel->bssSize();
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kernelEntry = kernel->entryPoint();
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// load symbols
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if (!kernel->loadGlobalSymbols(kernelSymtab))
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panic("could not load kernel symbols\n");
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if (!kernel->loadLocalSymbols(kernelSymtab))
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panic("could not load kernel local symbols\n");
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if (!console->loadGlobalSymbols(consoleSymtab))
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panic("could not load console symbols\n");
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if (!pal->loadGlobalSymbols(palSymtab))
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panic("could not load pal symbols\n");
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if (!kernel->loadGlobalSymbols(debugSymbolTable))
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panic("could not load kernel symbols\n");
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if (!kernel->loadLocalSymbols(debugSymbolTable))
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panic("could not load kernel local symbols\n");
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if (!console->loadGlobalSymbols(debugSymbolTable))
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panic("could not load console symbols\n");
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if (!pal->loadGlobalSymbols(debugSymbolTable))
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panic("could not load pal symbols\n");
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if (!pal->loadLocalSymbols(debugSymbolTable))
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panic("could not load pal symbols\n");
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DPRINTF(Loader, "Kernel start = %#x\n", kernelStart);
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DPRINTF(Loader, "Kernel end = %#x\n", kernelEnd);
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DPRINTF(Loader, "Kernel entry = %#x\n", kernelEntry);
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DPRINTF(Loader, "Kernel loaded...\n");
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Addr addr = 0;
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#ifdef DEBUG
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consolePanicEvent = new BreakPCEvent(&pcEventQueue, "console panic");
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if (consoleSymtab->findAddress("panic", addr))
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consolePanicEvent->schedule(addr);
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#endif
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/**
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* Copy the osflags (kernel arguments) into the consoles
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* memory. (Presently Linux does not use the console service
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* routine to get these command line arguments, but Tru64 and
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* others do.)
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*/
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if (consoleSymtab->findAddress("env_booted_osflags", addr)) {
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Addr paddr = vtophys(physmem, addr);
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char *osflags = (char *)physmem->dma_addr(paddr, sizeof(uint32_t));
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if (osflags)
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strcpy(osflags, params->boot_osflags.c_str());
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}
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/**
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* Set the hardware reset parameter block system type and revision
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* information to Tsunami.
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*/
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if (consoleSymtab->findAddress("xxm_rpb", addr)) {
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Addr paddr = vtophys(physmem, addr);
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char *hwrpb = (char *)physmem->dma_addr(paddr, sizeof(uint64_t));
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if (!hwrpb)
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panic("could not translate hwrpb addr\n");
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*(uint64_t*)(hwrpb+0x50) = params->system_type;
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*(uint64_t*)(hwrpb+0x58) = params->system_rev;
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} else
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panic("could not find hwrpb\n");
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// increment the number of running systms
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numSystemsRunning++;
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kernelBinning = new Kernel::Binning(this);
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}
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System::~System()
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{
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delete kernelSymtab;
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delete consoleSymtab;
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delete kernel;
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delete console;
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delete pal;
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delete kernelBinning;
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#ifdef DEBUG
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delete consolePanicEvent;
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#endif
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}
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bool
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System::breakpoint()
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{
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return remoteGDB[0]->trap(ALPHA_KENTRY_INT);
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}
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int
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System::registerExecContext(ExecContext *xc)
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{
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int xcIndex = execContexts.size();
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execContexts.push_back(xc);
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if (xcIndex == 0) {
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// activate with zero delay so that we start ticking right
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// away on cycle 0
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xc->activate(0);
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}
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RemoteGDB *rgdb = new RemoteGDB(this, xc);
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GDBListener *gdbl = new GDBListener(rgdb, 7000 + xcIndex);
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gdbl->listen();
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/**
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* Uncommenting this line waits for a remote debugger to connect
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* to the simulator before continuing.
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*/
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//gdbl->accept();
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if (remoteGDB.size() <= xcIndex) {
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remoteGDB.resize(xcIndex+1);
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}
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remoteGDB[xcIndex] = rgdb;
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return xcIndex;
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}
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void
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System::replaceExecContext(ExecContext *xc, int xcIndex)
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{
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if (xcIndex >= execContexts.size()) {
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panic("replaceExecContext: bad xcIndex, %d >= %d\n",
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xcIndex, execContexts.size());
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}
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execContexts[xcIndex] = xc;
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remoteGDB[xcIndex]->replaceExecContext(xc);
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}
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void
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System::regStats()
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{
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kernelBinning->regStats(name() + ".kern");
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}
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void
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System::serialize(ostream &os)
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{
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kernelBinning->serialize(os);
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}
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void
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System::unserialize(Checkpoint *cp, const string §ion)
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{
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kernelBinning->unserialize(cp, section);
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}
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void
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System::printSystems()
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{
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vector<System *>::iterator i = systemList.begin();
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vector<System *>::iterator end = systemList.end();
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for (; i != end; ++i) {
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System *sys = *i;
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cerr << "System " << sys->name() << ": " << hex << sys << endl;
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}
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}
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extern "C"
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void
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printSystems()
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{
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System::printSystems();
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}
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DEFINE_SIM_OBJECT_CLASS_NAME("System", System)
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