faults.hh

来自「M5,一个功能强大的多处理器系统模拟器.很多针对处理器架构,性能的研究都使用它作」· HH 代码 · 共 613 行 · 第 1/2 页

/*
 * Copyright (c) 2003, 2004, 2005
 * The Regents of The University of Michigan
 * All Rights Reserved
 *
 * This code is part of the M5 simulator.
 *
 * Permission is granted to use, copy, create derivative works and
 * redistribute this software and such derivative works for any
 * purpose, so long as the copyright notice above, this grant of
 * permission, and the disclaimer below appear in all copies made; and
 * so long as the name of The University of Michigan is not used in
 * any advertising or publicity pertaining to the use or distribution
 * of this software without specific, written prior authorization.
 *
 * THIS SOFTWARE IS PROVIDED AS IS, WITHOUT REPRESENTATION FROM THE
 * UNIVERSITY OF MICHIGAN AS TO ITS FITNESS FOR ANY PURPOSE, AND
 * WITHOUT WARRANTY BY THE UNIVERSITY OF MICHIGAN OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE. THE REGENTS OF THE UNIVERSITY OF MICHIGAN SHALL NOT BE
 * LIABLE FOR ANY DAMAGES, INCLUDING DIRECT, SPECIAL, INDIRECT,
 * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WITH RESPECT TO ANY CLAIM
 * ARISING OUT OF OR IN CONNECTION WITH THE USE OF THE SOFTWARE, EVEN
 * IF IT HAS BEEN OR IS HEREAFTER ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGES.
 *
 * Authors: Gabe M. Black
 *          Korey L. Sewell
 *
 */

/*
 * Copyright (c) 2007 MIPS Technologies, Inc.  All Rights Reserved
 *
 * This software is part of the M5 simulator.
 *
 * THIS IS A LEGAL AGREEMENT.  BY DOWNLOADING, USING, COPYING, CREATING
 * DERIVATIVE WORKS, AND/OR DISTRIBUTING THIS SOFTWARE YOU ARE AGREEING
 * TO THESE TERMS AND CONDITIONS.
 *
 * Permission is granted to use, copy, create derivative works and
 * distribute this software and such derivative works for any purpose,
 * so long as (1) the copyright notice above, this grant of permission,
 * and the disclaimer below appear in all copies and derivative works
 * made, (2) the copyright notice above is augmented as appropriate to
 * reflect the addition of any new copyrightable work in a derivative
 * work (e.g., Copyright (c) <Publication Year> Copyright Owner), and (3)
 * the name of MIPS Technologies, Inc. ($B!H(BMIPS$B!I(B) is not used in any
 * advertising or publicity pertaining to the use or distribution of
 * this software without specific, written prior authorization.
 *
 * THIS SOFTWARE IS PROVIDED $B!H(BAS IS.$B!I(B  MIPS MAKES NO WARRANTIES AND
 * DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS, STATUTORY, IMPLIED OR
 * OTHERWISE, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
 * NON-INFRINGEMENT OF THIRD PARTY RIGHTS, REGARDING THIS SOFTWARE.
 * IN NO EVENT SHALL MIPS BE LIABLE FOR ANY DAMAGES, INCLUDING DIRECT,
 * INDIRECT, INCIDENTAL, CONSEQUENTIAL, SPECIAL, OR PUNITIVE DAMAGES OF
 * ANY KIND OR NATURE, ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT,
 * THIS SOFTWARE AND/OR THE USE OF THIS SOFTWARE, WHETHER SUCH LIABILITY
 * IS ASSERTED ON THE BASIS OF CONTRACT, TORT (INCLUDING NEGLIGENCE OR
 * STRICT LIABILITY), OR OTHERWISE, EVEN IF MIPS HAS BEEN WARNED OF THE
 * POSSIBILITY OF ANY SUCH LOSS OR DAMAGE IN ADVANCE.
 *
 * Authors: Gabe M. Black
 *          Korey L. Sewell
 *          Jaidev Patwardhan
 */

#ifndef __MIPS_FAULTS_HH__
#define __MIPS_FAULTS_HH__

#include "sim/faults.hh"

// The design of the "name" and "vect" functions is in sim/faults.hh

namespace MipsISA
{
typedef const Addr FaultVect;

class MipsFault : public FaultBase
{
  protected:
    virtual bool skipFaultingInstruction() {return false;}
    virtual bool setRestartAddress() {return true;}
  public:
    Addr BadVAddr;
    Addr EntryHi_Asid;
    Addr EntryHi_VPN2;
    Addr EntryHi_VPN2X;
    Addr Context_BadVPN2;
#if FULL_SYSTEM
  void invoke(ThreadContext * tc) {};
  void setExceptionState(ThreadContext *,uint8_t);
  void setHandlerPC(Addr,ThreadContext *);
#endif
    virtual FaultVect vect() = 0;
    virtual FaultStat & countStat() = 0;
};

class MachineCheckFault : public MipsFault
{
  private:
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}
    FaultStat & countStat() {return _count;}
    bool isMachineCheckFault() {return true;}
};

class NonMaskableInterrupt : public MipsFault
{
  private:
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}
    FaultStat & countStat() {return _count;}
    bool isNonMaskableInterrupt() {return true;}
};

class AlignmentFault : public MipsFault
{
  private:
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}
    FaultStat & countStat() {return _count;}
    bool isAlignmentFault() {return true;}
};

class AddressErrorFault : public MipsFault
{
  private:
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}
    FaultStat & countStat() {return _count;}
#if FULL_SYSTEM
    void invoke(ThreadContext * tc);
#endif

};
class StoreAddressErrorFault : public MipsFault
{
  private:
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}
    FaultStat & countStat() {return _count;}
#if FULL_SYSTEM
    void invoke(ThreadContext * tc);
#endif

};
class UnimplementedOpcodeFault : public MipsFault
{
  private:
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}
    FaultStat & countStat() {return _count;}
};


class TLBRefillIFetchFault : public MipsFault
{
  private:
    Addr vaddr;
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}
    FaultStat & countStat() {return _count;}
    void invoke(ThreadContext * tc);
};
class TLBInvalidIFetchFault : public MipsFault
{
  private:
    Addr vaddr;
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}
    FaultStat & countStat() {return _count;}
    void invoke(ThreadContext * tc);
};

class NDtbMissFault : public MipsFault
{
  private:
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}
    FaultStat & countStat() {return _count;}
};

class PDtbMissFault : public MipsFault
{
  private:
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}
    FaultStat & countStat() {return _count;}
};

class DtbPageFault : public MipsFault
{
  private:
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}
    FaultStat & countStat() {return _count;}
};

class DtbAcvFault : public MipsFault
{
  private:
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}
    FaultStat & countStat() {return _count;}
};

class CacheErrorFault : public MipsFault
{
  private:
    Addr vaddr;
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}
    FaultStat & countStat() {return _count;}
    void invoke(ThreadContext * tc);
};




static inline Fault genMachineCheckFault()
{
    return new MachineCheckFault;
}

static inline Fault genAlignmentFault()
{
    return new AlignmentFault;
}

class ResetFault : public MipsFault
{
  private:
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}
    FaultStat & countStat() {return _count;}
    void invoke(ThreadContext * tc);

};
class SystemCallFault : public MipsFault
{
  private:
    static FaultName _name;
    static FaultVect _vect;
    static FaultStat _count;
  public:
    FaultName name() const {return _name;}
    FaultVect vect() {return _vect;}