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/*
* Copyright (c) 2004-2006 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.
*
* Authors: Ali Saidi
* Lisa Hsu
* Nathan Binkert
*/
#ifndef __ARCH_MIPS_LINUX_SYSTEM_HH__
#define __ARCH_MIPS_LINUX_SYSTEM_HH__
class ThreadContext;
class BreakPCEvent;
class IdleStartEvent;
#include "arch/mips/idle_event.hh"
#include "arch/mips/system.hh"
#include "kern/linux/events.hh"
#include "params/LinuxMipsSystem.hh"
/**
* This class contains linux specific system code (Loading, Events).
* It points to objects that are the system binaries to load and patches them
* appropriately to work in simulator.
*/
class LinuxMipsSystem : public MipsSystem
{
private:
class SkipDelayLoopEvent : public SkipFuncEvent
{
public:
SkipDelayLoopEvent(PCEventQueue *q, const std::string &desc, Addr addr)
: SkipFuncEvent(q, desc, addr) {}
virtual void process(ThreadContext *tc);
};
class PrintThreadInfo : public PCEvent
{
public:
PrintThreadInfo(PCEventQueue *q, const std::string &desc, Addr addr)
: PCEvent(q, desc, addr) {}
virtual void process(ThreadContext *tc);
};
/**
* Addresses defining where the kernel bootloader places various
* elements. Details found in include/asm-mips/system.h
*/
Addr KernelStart; // Lookup the symbol swapper_pg_dir
public:
Addr InitStack() const { return KernelStart + 0x02000; }
Addr EmptyPGT() const { return KernelStart + 0x04000; }
Addr EmptyPGE() const { return KernelStart + 0x08000; }
Addr ZeroPGE() const { return KernelStart + 0x0A000; }
Addr StartAddr() const { return KernelStart + 0x10000; }
Addr Param() const { return ZeroPGE() + 0x0; }
Addr CommandLine() const { return Param() + 0x0; }
Addr InitrdStart() const { return Param() + 0x100; }
Addr InitrdSize() const { return Param() + 0x108; }
static const int CommandLineSize = 256;
public:
typedef LinuxMipsSystemParams Params;
LinuxMipsSystem(Params *p);
~LinuxMipsSystem();
void setDelayLoop(ThreadContext *tc);
};
#endif // __ARCH_MIPS_LINUX_SYSTEM_HH__
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