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--HG--
extra : convert_revision : 8921907af0f18313bc66ad2a584fc182526fe1a2
This commit is contained in:
Kevin Lim 2006-06-01 15:40:06 -04:00
parent 51ed3c3fd9
commit 8671d927d8
4 changed files with 89 additions and 1 deletions
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23
cpu/checker/cpu.hh
View file

@ -64,13 +64,28 @@ class MemInterface;
class Checkpoint;
class Sampler;
/**
* CheckerCPU class. Dynamically verifies instructions as they are
* completed by making sure that the instruction and its results match
* the independent execution of the benchmark inside the checker. The
* checker verifies instructions in order, regardless of the order in
* which instructions complete. There are certain results that can
* not be verified, specifically the result of a store conditional or
* the values of uncached accesses. In these cases, and with
* instructions marked as "IsUnverifiable", the checker assumes that
* the value from the main CPU's execution is correct and simply
* copies that value. It provides a CheckerExecContext (see
* checker/exec_context.hh) that provides hooks for updating the
* Checker's state through any ExecContext accesses. This allows the
* checker to be able to correctly verify instructions, even with
* external accesses to the ExecContext that change state.
*/
class CheckerCPU : public BaseCPU
{
protected:
typedef TheISA::MachInst MachInst;
typedef TheISA::MiscReg MiscReg;
public:
// main simulation loop (one cycle)
virtual void init();
struct Params : public BaseCPU::Params
@ -301,6 +316,12 @@ class CheckerCPU : public BaseCPU
InstSeqNum youngestSN;
};
/**
* Templated Checker class. This Checker class is templated on the
* DynInstPtr of the instruction type that will be verified. Proper
* template instantiations of the Checker must be placed at the bottom
* of checker/cpu.cc.
*/
template <class DynInstPtr>
class Checker : public CheckerCPU
{

30
cpu/checker/cpu_builder.cc
View file

@ -1,3 +1,30 @@
/*
* Copyright (c) 2006 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <string>
@ -10,6 +37,9 @@
#include "sim/process.hh"
#include "sim/sim_object.hh"
/**
* Specific non-templated derived class used for SimObject configuration.
*/
class OzoneChecker : public Checker<RefCountingPtr<OzoneDynInst<OzoneImpl> > >
{
public:

7
cpu/checker/exec_context.hh
View file

@ -38,6 +38,13 @@ namespace Kernel {
class Statistics;
};
/**
* Derived ExecContext class for use with the Checker. The template
* parameter is the ExecContext class used by the specific CPU being
* verified. This CheckerExecContext is then used by the main CPU in
* place of its usual ExecContext class. It handles updating the
* checker's state any time state is updated through the ExecContext.
*/
template <class XC>
class CheckerExecContext : public ExecContext
{

30
cpu/checker/o3_cpu_builder.cc
View file

@ -1,3 +1,30 @@
/*
* Copyright (c) 2006 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <string>
@ -10,6 +37,9 @@
#include "sim/process.hh"
#include "sim/sim_object.hh"
/**
* Specific non-templated derived class used for SimObject configuration.
*/
class O3Checker : public Checker<RefCountingPtr<AlphaDynInst<AlphaSimpleImpl> > >
{
public: