backdoor.cc revision 217
112838Sgabeblack@google.com/* 212838Sgabeblack@google.com * Copyright (c) 2003 The Regents of The University of Michigan 312838Sgabeblack@google.com * All rights reserved. 412838Sgabeblack@google.com * 512838Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 612838Sgabeblack@google.com * modification, are permitted provided that the following conditions are 712838Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 812838Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 912838Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 1012838Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1112838Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1212838Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1312838Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1412838Sgabeblack@google.com * this software without specific prior written permission. 1512838Sgabeblack@google.com * 1612838Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1712838Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1812838Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1912838Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2012838Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2112838Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2212838Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2312838Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2412838Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2512838Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2612838Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2712838Sgabeblack@google.com */ 2812838Sgabeblack@google.com 2912838Sgabeblack@google.com/* @file 3012838Sgabeblack@google.com * System Console Definition 3112838Sgabeblack@google.com */ 3212838Sgabeblack@google.com 3312838Sgabeblack@google.com#include <cstddef> 3412838Sgabeblack@google.com#include <cstdio> 3512838Sgabeblack@google.com#include <string> 3613128Sgabeblack@google.com 3713128Sgabeblack@google.com#include "base/inifile.hh" 3813087Sgabeblack@google.com#include "base/str.hh" // for to_number() 3912852Sgabeblack@google.com#include "base/trace.hh" 4012852Sgabeblack@google.com#include "cpu/base_cpu.hh" 4112852Sgabeblack@google.com#include "cpu/exec_context.hh" 4212852Sgabeblack@google.com#include "dev/alpha_console.hh" 4312852Sgabeblack@google.com#include "dev/console.hh" 4412952Sgabeblack@google.com#include "dev/simple_disk.hh" 4512952Sgabeblack@google.com#include "dev/tlaser_clock.hh" 4612952Sgabeblack@google.com#include "mem/functional_mem/memory_control.hh" 4712952Sgabeblack@google.com#include "sim/builder.hh" 4812952Sgabeblack@google.com#include "sim/system.hh" 4912952Sgabeblack@google.com 5012952Sgabeblack@google.comusing namespace std; 5112952Sgabeblack@google.com 5212952Sgabeblack@google.comAlphaConsole::AlphaConsole(const string &name, SimConsole *cons, 5312952Sgabeblack@google.com SimpleDisk *d, int size, System *system, 5412952Sgabeblack@google.com BaseCPU *cpu, TlaserClock *clock, int num_cpus, 5512952Sgabeblack@google.com Addr addr, Addr mask, MemoryController *mmu) 5612952Sgabeblack@google.com : MmapDevice(name, addr, mask, mmu), disk(d), console(cons) 5712952Sgabeblack@google.com{ 5812952Sgabeblack@google.com consoleData = new uint8_t[size]; 5912952Sgabeblack@google.com memset(consoleData, 0, size); 6012952Sgabeblack@google.com 6112952Sgabeblack@google.com alphaAccess->last_offset = size - 1; 6212952Sgabeblack@google.com alphaAccess->kernStart = system->getKernelStart(); 6312952Sgabeblack@google.com alphaAccess->kernEnd = system->getKernelEnd(); 6412952Sgabeblack@google.com alphaAccess->entryPoint = system->getKernelEntry(); 6512952Sgabeblack@google.com 6612952Sgabeblack@google.com alphaAccess->version = ALPHA_ACCESS_VERSION; 6712952Sgabeblack@google.com alphaAccess->numCPUs = num_cpus; 6812952Sgabeblack@google.com alphaAccess->mem_size = system->physmem->getSize(); 6912952Sgabeblack@google.com alphaAccess->cpuClock = cpu->getFreq() / 1000000; 7012952Sgabeblack@google.com alphaAccess->intrClockFrequency = clock->frequency(); 7112952Sgabeblack@google.com 7212952Sgabeblack@google.com alphaAccess->diskUnit = 1; 7312952Sgabeblack@google.com} 7412952Sgabeblack@google.com 7512952Sgabeblack@google.comFault 7612952Sgabeblack@google.comAlphaConsole::read(MemReqPtr req, uint8_t *data) 7712952Sgabeblack@google.com{ 7812852Sgabeblack@google.com memset(data, 0, req->size); 7912852Sgabeblack@google.com 8012838Sgabeblack@google.com if (req->size == sizeof(uint32_t)) { 8112838Sgabeblack@google.com Addr daddr = req->paddr & addr_mask; 8212838Sgabeblack@google.com *(uint32_t *)data = *(uint32_t *)(consoleData + daddr); 8312838Sgabeblack@google.com 8412838Sgabeblack@google.com#if 0 8512838Sgabeblack@google.com DPRINTF(AlphaConsole, "read: offset=%#x val=%#x\n", 8612838Sgabeblack@google.com daddr, *(uint32_t *)data); 8712838Sgabeblack@google.com#endif 8812838Sgabeblack@google.com } 8912838Sgabeblack@google.com 9012838Sgabeblack@google.com return No_Fault; 9112838Sgabeblack@google.com} 9212838Sgabeblack@google.com 9312838Sgabeblack@google.comFault 9412838Sgabeblack@google.comAlphaConsole::write(MemReqPtr req, const uint8_t *data) 9512838Sgabeblack@google.com{ 9612838Sgabeblack@google.com uint64_t val; 9712838Sgabeblack@google.com 9812838Sgabeblack@google.com switch (req->size) { 9912838Sgabeblack@google.com case sizeof(uint32_t): 10012838Sgabeblack@google.com val = *(uint32_t *)data; 10112838Sgabeblack@google.com break; 10212838Sgabeblack@google.com case sizeof(uint64_t): 10312838Sgabeblack@google.com val = *(uint64_t *)data; 10412838Sgabeblack@google.com break; 10512898Sgabeblack@google.com default: 10612898Sgabeblack@google.com return Machine_Check_Fault; 10712898Sgabeblack@google.com } 10812898Sgabeblack@google.com 10912898Sgabeblack@google.com Addr paddr = req->paddr & addr_mask; 11012898Sgabeblack@google.com 11112898Sgabeblack@google.com if (paddr == offsetof(AlphaAccess, diskUnit)) { 11212838Sgabeblack@google.com alphaAccess->diskUnit = val; 11312994Sgabeblack@google.com return No_Fault; 11412838Sgabeblack@google.com } 11512838Sgabeblack@google.com 11612838Sgabeblack@google.com if (paddr == offsetof(AlphaAccess, diskCount)) { 11712939Sgabeblack@google.com alphaAccess->diskCount = val; 11812939Sgabeblack@google.com return No_Fault; 11913087Sgabeblack@google.com } 12012939Sgabeblack@google.com 12112939Sgabeblack@google.com if (paddr == offsetof(AlphaAccess, diskPAddr)) { 12213087Sgabeblack@google.com alphaAccess->diskPAddr = val; 12313087Sgabeblack@google.com return No_Fault; 12413087Sgabeblack@google.com } 12513087Sgabeblack@google.com 12612939Sgabeblack@google.com if (paddr == offsetof(AlphaAccess, diskBlock)) { 12712939Sgabeblack@google.com alphaAccess->diskBlock = val; 12812939Sgabeblack@google.com return No_Fault; 12912939Sgabeblack@google.com } 13013087Sgabeblack@google.com 13113087Sgabeblack@google.com if (paddr == offsetof(AlphaAccess, diskOperation)) { 13213087Sgabeblack@google.com if (val == 0x13) 13312939Sgabeblack@google.com disk->read(alphaAccess->diskPAddr, alphaAccess->diskBlock, 13412939Sgabeblack@google.com alphaAccess->diskCount); 13512939Sgabeblack@google.com else 13612939Sgabeblack@google.com panic("Invalid disk operation!"); 13712939Sgabeblack@google.com 13812939Sgabeblack@google.com return No_Fault; 13912939Sgabeblack@google.com } 14012939Sgabeblack@google.com 14112939Sgabeblack@google.com if (paddr == offsetof(AlphaAccess, outputChar)) { 14212939Sgabeblack@google.com console->out((char)(val & 0xff), false); 14312939Sgabeblack@google.com return No_Fault; 14412939Sgabeblack@google.com } 14512939Sgabeblack@google.com 14612939Sgabeblack@google.com if (paddr == offsetof(AlphaAccess, bootStrapImpure)) { 14712939Sgabeblack@google.com alphaAccess->bootStrapImpure = val; 14812939Sgabeblack@google.com return No_Fault; 14912939Sgabeblack@google.com } 15012838Sgabeblack@google.com 15112838Sgabeblack@google.com if (paddr == offsetof(AlphaAccess, bootStrapCPU)) { 15212852Sgabeblack@google.com warn("%d: Trying to launch another CPU!", curTick); 15312852Sgabeblack@google.com int cpu = val; 15412852Sgabeblack@google.com assert(cpu > 0 && "Must not access primary cpu"); 15512838Sgabeblack@google.com 15612838Sgabeblack@google.com ExecContext *other_xc = req->xc->system->execContexts[cpu]; 15712838Sgabeblack@google.com other_xc->regs.intRegFile[16] = cpu; 15812838Sgabeblack@google.com other_xc->regs.ipr[TheISA::IPR_PALtemp16] = cpu; 15912838Sgabeblack@google.com other_xc->regs.intRegFile[0] = cpu; 16012838Sgabeblack@google.com other_xc->regs.intRegFile[30] = alphaAccess->bootStrapImpure; 16112852Sgabeblack@google.com other_xc->setStatus(ExecContext::Active); //Start the cpu 16212852Sgabeblack@google.com return No_Fault; 16312852Sgabeblack@google.com } 16412852Sgabeblack@google.com 16512852Sgabeblack@google.com return No_Fault; 16612852Sgabeblack@google.com} 16712852Sgabeblack@google.com 16812852Sgabeblack@google.comvoid 16912852Sgabeblack@google.comAlphaAccess::serialize(ostream &os) 17012852Sgabeblack@google.com{ 17112852Sgabeblack@google.com SERIALIZE_MEMBER(last_offset); 17212838Sgabeblack@google.com SERIALIZE_MEMBER(version); 17312838Sgabeblack@google.com SERIALIZE_MEMBER(numCPUs); 17412838Sgabeblack@google.com SERIALIZE_MEMBER(mem_size); 17512838Sgabeblack@google.com SERIALIZE_MEMBER(cpuClock); 17612838Sgabeblack@google.com SERIALIZE_MEMBER(intrClockFrequency); 17712838Sgabeblack@google.com SERIALIZE_MEMBER(kernStart); 17812952Sgabeblack@google.com SERIALIZE_MEMBER(kernEnd); 17912838Sgabeblack@google.com SERIALIZE_MEMBER(entryPoint); 18012838Sgabeblack@google.com SERIALIZE_MEMBER(diskUnit); 18112838Sgabeblack@google.com SERIALIZE_MEMBER(diskCount); 18212838Sgabeblack@google.com SERIALIZE_MEMBER(diskPAddr); 18312838Sgabeblack@google.com SERIALIZE_MEMBER(diskBlock); 18412838Sgabeblack@google.com SERIALIZE_MEMBER(diskOperation); 18512838Sgabeblack@google.com SERIALIZE_MEMBER(outputChar); 18612838Sgabeblack@google.com SERIALIZE_MEMBER(bootStrapImpure); 18712838Sgabeblack@google.com SERIALIZE_MEMBER(bootStrapCPU); 18812838Sgabeblack@google.com} 18912838Sgabeblack@google.com 19012838Sgabeblack@google.comvoid 19112838Sgabeblack@google.comAlphaAccess::unserialize(IniFile &db, const std::string §ion) 19212838Sgabeblack@google.com{ 19312838Sgabeblack@google.com UNSERIALIZE_MEMBER(last_offset); 19412838Sgabeblack@google.com UNSERIALIZE_MEMBER(version); 19512838Sgabeblack@google.com UNSERIALIZE_MEMBER(numCPUs); 19612838Sgabeblack@google.com UNSERIALIZE_MEMBER(mem_size); 19712838Sgabeblack@google.com UNSERIALIZE_MEMBER(cpuClock); 19812838Sgabeblack@google.com UNSERIALIZE_MEMBER(intrClockFrequency); 19912838Sgabeblack@google.com UNSERIALIZE_MEMBER(kernStart); 20012838Sgabeblack@google.com UNSERIALIZE_MEMBER(kernEnd); 20112838Sgabeblack@google.com UNSERIALIZE_MEMBER(entryPoint); 20212838Sgabeblack@google.com UNSERIALIZE_MEMBER(diskUnit); 20312838Sgabeblack@google.com UNSERIALIZE_MEMBER(diskCount); 20412838Sgabeblack@google.com UNSERIALIZE_MEMBER(diskPAddr); 20512838Sgabeblack@google.com UNSERIALIZE_MEMBER(diskBlock); 20612838Sgabeblack@google.com UNSERIALIZE_MEMBER(diskOperation); 20712838Sgabeblack@google.com UNSERIALIZE_MEMBER(outputChar); 20812838Sgabeblack@google.com UNSERIALIZE_MEMBER(bootStrapImpure); 20912838Sgabeblack@google.com UNSERIALIZE_MEMBER(bootStrapCPU); 21012838Sgabeblack@google.com} 21112952Sgabeblack@google.com 21212952Sgabeblack@google.comvoid 21312952Sgabeblack@google.comAlphaConsole::serialize(ostream &os) 21412952Sgabeblack@google.com{ 21512838Sgabeblack@google.com alphaAccess->serialize(os); 21613128Sgabeblack@google.com} 21713128Sgabeblack@google.com 21813128Sgabeblack@google.comvoid 21913128Sgabeblack@google.comAlphaConsole::unserialize(IniFile &db, const std::string §ion) 22013128Sgabeblack@google.com{ 22112952Sgabeblack@google.com alphaAccess->unserialize(db, section); 22212952Sgabeblack@google.com} 22312952Sgabeblack@google.com 22412838Sgabeblack@google.comBEGIN_DECLARE_SIM_OBJECT_PARAMS(AlphaConsole) 22512838Sgabeblack@google.com 22612838Sgabeblack@google.com SimObjectParam<SimConsole *> sim_console; 22712838Sgabeblack@google.com SimObjectParam<SimpleDisk *> disk; 22812838Sgabeblack@google.com Param<int> size; 22912838Sgabeblack@google.com Param<int> num_cpus; 23012899Sgabeblack@google.com SimObjectParam<MemoryController *> mmu; 23112899Sgabeblack@google.com Param<Addr> addr; 23212899Sgabeblack@google.com Param<Addr> mask; 23312899Sgabeblack@google.com SimObjectParam<System *> system; 23412899Sgabeblack@google.com SimObjectParam<BaseCPU *> cpu; 23512899Sgabeblack@google.com SimObjectParam<TlaserClock *> clock; 23612838Sgabeblack@google.com 23712838Sgabeblack@google.comEND_DECLARE_SIM_OBJECT_PARAMS(AlphaConsole) 23812838Sgabeblack@google.com 239BEGIN_INIT_SIM_OBJECT_PARAMS(AlphaConsole) 240 241 INIT_PARAM(sim_console, "The Simulator Console"), 242 INIT_PARAM(disk, "Simple Disk"), 243 INIT_PARAM_DFLT(size, "AlphaConsole size", sizeof(AlphaAccess)), 244 INIT_PARAM_DFLT(num_cpus, "Number of CPU's", 1), 245 INIT_PARAM(mmu, "Memory Controller"), 246 INIT_PARAM(addr, "Device Address"), 247 INIT_PARAM(mask, "Address Mask"), 248 INIT_PARAM(system, "system object"), 249 INIT_PARAM(cpu, "Processor"), 250 INIT_PARAM(clock, "Turbolaser Clock") 251 252END_INIT_SIM_OBJECT_PARAMS(AlphaConsole) 253 254CREATE_SIM_OBJECT(AlphaConsole) 255{ 256 return new AlphaConsole(getInstanceName(), sim_console, 257 disk, size, system, 258 cpu, clock, num_cpus, 259 addr, mask, mmu); 260} 261 262REGISTER_SIM_OBJECT("AlphaConsole", AlphaConsole) 263