faults.hh revision 8545
12SN/A/* 21762SN/A * Copyright (c) 2003-2005 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: Nathan Binkert 292665Ssaidi@eecs.umich.edu * Gabe Black 302SN/A */ 312SN/A 322SN/A#ifndef __FAULTS_HH__ 332SN/A#define __FAULTS_HH__ 342SN/A 352147SN/A#include "base/refcnt.hh" 367678Sgblack@eecs.umich.edu#include "base/types.hh" 378229Snate@binkert.org#include "config/full_system.hh" 388229Snate@binkert.org#include "cpu/static_inst.hh" 397878Sgblack@eecs.umich.edu#include "sim/fault_fwd.hh" 402147SN/A#include "sim/stats.hh" 412147SN/A 422680Sktlim@umich.educlass ThreadContext; 432132SN/A 442147SN/Atypedef const char * FaultName; 455999Snate@binkert.orgtypedef Stats::Scalar FaultStat; 462147SN/A 472147SN/A// Each class has it's name statically define in _name, 482147SN/A// and has a virtual function to access it's name. 492147SN/A// The function is necessary because otherwise, all objects 502147SN/A// which are being accessed cast as a FaultBase * (namely 512147SN/A// all faults returned using the Fault type) will use the 522147SN/A// generic FaultBase name. 532147SN/A 542147SN/Aclass FaultBase : public RefCounted 552090SN/A{ 562147SN/A public: 574695Sgblack@eecs.umich.edu virtual FaultName name() const = 0; 587678Sgblack@eecs.umich.edu virtual void invoke(ThreadContext * tc, 597678Sgblack@eecs.umich.edu StaticInstPtr inst = StaticInst::nullStaticInstPtr); 604695Sgblack@eecs.umich.edu virtual bool isMachineCheckFault() const {return false;} 614695Sgblack@eecs.umich.edu virtual bool isAlignmentFault() const {return false;} 622SN/A}; 632SN/A 642612SN/Aclass UnimpFault : public FaultBase 652612SN/A{ 662612SN/A private: 672612SN/A std::string panicStr; 682612SN/A public: 692612SN/A UnimpFault(std::string _str) 702612SN/A : panicStr(_str) 712612SN/A { } 722612SN/A 734695Sgblack@eecs.umich.edu FaultName name() const {return "Unimplemented simulator feature";} 747678Sgblack@eecs.umich.edu void invoke(ThreadContext * tc, 757678Sgblack@eecs.umich.edu StaticInstPtr inst = StaticInst::nullStaticInstPtr); 762612SN/A}; 772612SN/A 788545Ssaidi@eecs.umich.educlass ReExec : public FaultBase 798545Ssaidi@eecs.umich.edu{ 808545Ssaidi@eecs.umich.edu public: 818545Ssaidi@eecs.umich.edu virtual FaultName name() const { return "Re-execution fault";} 828545Ssaidi@eecs.umich.edu ReExec() {} 838545Ssaidi@eecs.umich.edu void invoke(ThreadContext *tc, 848545Ssaidi@eecs.umich.edu StaticInstPtr inst = StaticInst::nullStaticInstPtr); 858545Ssaidi@eecs.umich.edu}; 868545Ssaidi@eecs.umich.edu 878545Ssaidi@eecs.umich.edu 884183Sgblack@eecs.umich.edu#if !FULL_SYSTEM 895004Sgblack@eecs.umich.educlass GenericPageTableFault : public FaultBase 904183Sgblack@eecs.umich.edu{ 914183Sgblack@eecs.umich.edu private: 924183Sgblack@eecs.umich.edu Addr vaddr; 934183Sgblack@eecs.umich.edu public: 945004Sgblack@eecs.umich.edu FaultName name() const {return "Generic page table fault";} 955004Sgblack@eecs.umich.edu GenericPageTableFault(Addr va) : vaddr(va) {} 967678Sgblack@eecs.umich.edu void invoke(ThreadContext * tc, 977678Sgblack@eecs.umich.edu StaticInstPtr inst = StaticInst::nullStaticInstPtr); 985004Sgblack@eecs.umich.edu}; 995004Sgblack@eecs.umich.edu 1005004Sgblack@eecs.umich.educlass GenericAlignmentFault : public FaultBase 1015004Sgblack@eecs.umich.edu{ 1025004Sgblack@eecs.umich.edu private: 1035004Sgblack@eecs.umich.edu Addr vaddr; 1045004Sgblack@eecs.umich.edu public: 1055004Sgblack@eecs.umich.edu FaultName name() const {return "Generic alignment fault";} 1065004Sgblack@eecs.umich.edu GenericAlignmentFault(Addr va) : vaddr(va) {} 1077678Sgblack@eecs.umich.edu void invoke(ThreadContext * tc, 1087678Sgblack@eecs.umich.edu StaticInstPtr inst = StaticInst::nullStaticInstPtr); 1094183Sgblack@eecs.umich.edu}; 1104183Sgblack@eecs.umich.edu#endif 1114183Sgblack@eecs.umich.edu 1122SN/A#endif // __FAULTS_HH__ 113