abc76f20cb
creation and initialization now happens in python. Parameter objects are generated and initialized by python. The .ini file is now solely for debugging purposes and is not used in construction of the objects in any way. --HG-- extra : convert_revision : 7e722873e417cb3d696f2e34c35ff488b7bff4ed
141 lines
4.7 KiB
C++
141 lines
4.7 KiB
C++
/*
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* Copyright (c) 2004-2006 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Ali Saidi
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* Lisa Hsu
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* Nathan Binkert
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*/
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#ifndef __ARCH_ALPHA_LINUX_SYSTEM_HH__
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#define __ARCH_ALPHA_LINUX_SYSTEM_HH__
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class ThreadContext;
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class BreakPCEvent;
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class IdleStartEvent;
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#include "arch/alpha/idle_event.hh"
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#include "arch/alpha/system.hh"
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#include "kern/linux/events.hh"
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#include "params/LinuxAlphaSystem.hh"
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using namespace AlphaISA;
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using namespace Linux;
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/**
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* This class contains linux specific system code (Loading, Events).
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* It points to objects that are the system binaries to load and patches them
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* appropriately to work in simulator.
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*/
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class LinuxAlphaSystem : public AlphaSystem
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{
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private:
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class SkipDelayLoopEvent : public SkipFuncEvent
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{
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public:
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SkipDelayLoopEvent(PCEventQueue *q, const std::string &desc, Addr addr)
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: SkipFuncEvent(q, desc, addr) {}
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virtual void process(ThreadContext *tc);
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};
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class PrintThreadInfo : public PCEvent
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{
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public:
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PrintThreadInfo(PCEventQueue *q, const std::string &desc, Addr addr)
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: PCEvent(q, desc, addr) {}
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virtual void process(ThreadContext *tc);
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};
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/**
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* Addresses defining where the kernel bootloader places various
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* elements. Details found in include/asm-alpha/system.h
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*/
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Addr KernelStart; // Lookup the symbol swapper_pg_dir
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public:
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Addr InitStack() const { return KernelStart + 0x02000; }
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Addr EmptyPGT() const { return KernelStart + 0x04000; }
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Addr EmptyPGE() const { return KernelStart + 0x08000; }
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Addr ZeroPGE() const { return KernelStart + 0x0A000; }
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Addr StartAddr() const { return KernelStart + 0x10000; }
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Addr Param() const { return ZeroPGE() + 0x0; }
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Addr CommandLine() const { return Param() + 0x0; }
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Addr InitrdStart() const { return Param() + 0x100; }
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Addr InitrdSize() const { return Param() + 0x108; }
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static const int CommandLineSize = 256;
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private:
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#ifndef NDEBUG
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/** Event to halt the simulator if the kernel calls panic() */
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BreakPCEvent *kernelPanicEvent;
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/** Event to halt the simulator if the kernel calls die_if_kernel */
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BreakPCEvent *kernelDieEvent;
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#endif
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/**
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* Event to skip determine_cpu_caches() because we don't support
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* the IPRs that the code can access to figure out cache sizes
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*/
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SkipFuncEvent *skipCacheProbeEvent;
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/** PC based event to skip the ide_delay_50ms() call */
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SkipFuncEvent *skipIdeDelay50msEvent;
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/**
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* PC based event to skip the dprink() call and emulate its
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* functionality
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*/
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DebugPrintkEvent *debugPrintkEvent;
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/**
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* Skip calculate_delay_loop() rather than waiting for this to be
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* calculated
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*/
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SkipDelayLoopEvent *skipDelayLoopEvent;
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/**
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* Event to print information about thread switches if the trace flag
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* Thread is set
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*/
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PrintThreadInfo *printThreadEvent;
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/** Grab the PCBB of the idle process when it starts */
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IdleStartEvent *idleStartEvent;
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public:
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typedef LinuxAlphaSystemParams Params;
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LinuxAlphaSystem(Params *p);
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~LinuxAlphaSystem();
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void setDelayLoop(ThreadContext *tc);
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};
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#endif // __ARCH_ALPHA_LINUX_SYSTEM_HH__
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