faults.hh revision 13475
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 357678Sgblack@eecs.umich.edu#include "base/types.hh" 368229Snate@binkert.org#include "cpu/static_inst.hh" 372147SN/A#include "sim/stats.hh" 382147SN/A 392680Sktlim@umich.educlass ThreadContext; 402132SN/A 412147SN/Atypedef const char * FaultName; 425999Snate@binkert.orgtypedef Stats::Scalar FaultStat; 432147SN/A 4410474Sandreas.hansson@arm.comclass FaultBase 452090SN/A{ 462147SN/A public: 474695Sgblack@eecs.umich.edu virtual FaultName name() const = 0; 4810417Sandreas.hansson@arm.com virtual void invoke(ThreadContext * tc, const StaticInstPtr &inst = 4910417Sandreas.hansson@arm.com StaticInst::nullStaticInstPtr); 5013475Snikos.nikoleris@arm.com 5113475Snikos.nikoleris@arm.com virtual ~FaultBase() {}; 522SN/A}; 532SN/A 542612SN/Aclass UnimpFault : public FaultBase 552612SN/A{ 562612SN/A private: 572612SN/A std::string panicStr; 582612SN/A public: 592612SN/A UnimpFault(std::string _str) 602612SN/A : panicStr(_str) 612612SN/A { } 622612SN/A 6311876Sbrandon.potter@amd.com FaultName name() const { return "Unimplemented simulator feature"; } 6410417Sandreas.hansson@arm.com void invoke(ThreadContext * tc, const StaticInstPtr &inst = 6510417Sandreas.hansson@arm.com StaticInst::nullStaticInstPtr); 662612SN/A}; 672612SN/A 688545Ssaidi@eecs.umich.educlass ReExec : public FaultBase 698545Ssaidi@eecs.umich.edu{ 708545Ssaidi@eecs.umich.edu public: 7111876Sbrandon.potter@amd.com virtual FaultName name() const { return "Re-execution fault"; } 728545Ssaidi@eecs.umich.edu ReExec() {} 7310417Sandreas.hansson@arm.com void invoke(ThreadContext *tc, const StaticInstPtr &inst = 7410417Sandreas.hansson@arm.com StaticInst::nullStaticInstPtr); 758545Ssaidi@eecs.umich.edu}; 768545Ssaidi@eecs.umich.edu 7711877Sbrandon.potter@amd.com/* 7811877Sbrandon.potter@amd.com * This class is needed to allow system call retries to occur for blocking 7911877Sbrandon.potter@amd.com * system calls in SE mode. A retry fault will be generated by the system call 8011877Sbrandon.potter@amd.com * emulation code if blocking conditions arise; the fault is passed up the 8111877Sbrandon.potter@amd.com * function call chain into the CPU model where it is handled by retrying the 8211877Sbrandon.potter@amd.com * syscall instruction on a later tick. 8311877Sbrandon.potter@amd.com */ 8411877Sbrandon.potter@amd.comclass SyscallRetryFault : public FaultBase 8511877Sbrandon.potter@amd.com{ 8611877Sbrandon.potter@amd.com public: 8711877Sbrandon.potter@amd.com virtual FaultName name() const { return "System call retry fault"; } 8811877Sbrandon.potter@amd.com SyscallRetryFault() {} 8911877Sbrandon.potter@amd.com void invoke(ThreadContext *tc, const StaticInstPtr &inst = 9011877Sbrandon.potter@amd.com StaticInst::nullStaticInstPtr); 9111877Sbrandon.potter@amd.com}; 9211877Sbrandon.potter@amd.com 935004Sgblack@eecs.umich.educlass GenericPageTableFault : public FaultBase 944183Sgblack@eecs.umich.edu{ 954183Sgblack@eecs.umich.edu private: 964183Sgblack@eecs.umich.edu Addr vaddr; 974183Sgblack@eecs.umich.edu public: 9811876Sbrandon.potter@amd.com FaultName name() const { return "Generic page table fault"; } 995004Sgblack@eecs.umich.edu GenericPageTableFault(Addr va) : vaddr(va) {} 10010417Sandreas.hansson@arm.com void invoke(ThreadContext * tc, const StaticInstPtr &inst = 10110417Sandreas.hansson@arm.com StaticInst::nullStaticInstPtr); 1025004Sgblack@eecs.umich.edu}; 1035004Sgblack@eecs.umich.edu 1045004Sgblack@eecs.umich.educlass GenericAlignmentFault : public FaultBase 1055004Sgblack@eecs.umich.edu{ 1065004Sgblack@eecs.umich.edu private: 1075004Sgblack@eecs.umich.edu Addr vaddr; 1085004Sgblack@eecs.umich.edu public: 10911876Sbrandon.potter@amd.com FaultName name() const { return "Generic alignment fault"; } 1105004Sgblack@eecs.umich.edu GenericAlignmentFault(Addr va) : vaddr(va) {} 11110417Sandreas.hansson@arm.com void invoke(ThreadContext * tc, const StaticInstPtr &inst = 11210417Sandreas.hansson@arm.com StaticInst::nullStaticInstPtr); 1134183Sgblack@eecs.umich.edu}; 1144183Sgblack@eecs.umich.edu 1152SN/A#endif // __FAULTS_HH__ 116