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Diffstat (limited to 'src/sim/system.hh')
| -rw-r--r-- | src/sim/system.hh | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/src/sim/system.hh b/src/sim/system.hh new file mode 100644 index 000000000..7e21bd587 --- /dev/null +++ b/src/sim/system.hh @@ -0,0 +1,229 @@ +/* + * Copyright (c) 2002-2005 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. + */ + +#ifndef __SYSTEM_HH__ +#define __SYSTEM_HH__ + +#include <string> +#include <vector> + +#include "base/loader/symtab.hh" +#include "base/misc.hh" +#include "base/statistics.hh" +#include "cpu/pc_event.hh" +#include "mem/port.hh" +#include "sim/sim_object.hh" +#if FULL_SYSTEM +#include "kern/system_events.hh" +#include "mem/vport.hh" +#endif + +class BaseCPU; +class ExecContext; +class ObjectFile; +class PhysicalMemory; + +#if FULL_SYSTEM +class Platform; +class GDBListener; +class RemoteGDB; +namespace Kernel { class Binning; } +#endif + +class System : public SimObject +{ + public: + PhysicalMemory *physmem; + PCEventQueue pcEventQueue; + + std::vector<ExecContext *> execContexts; + int numcpus; + + int getNumCPUs() + { + if (numcpus != execContexts.size()) + panic("cpu array not fully populated!"); + + return numcpus; + } + +#if FULL_SYSTEM + Platform *platform; + uint64_t init_param; + + /** Port to physical memory used for writing object files into ram at + * boot.*/ + FunctionalPort functionalPort; + VirtualPort virtPort; + + /** kernel symbol table */ + SymbolTable *kernelSymtab; + + /** Object pointer for the kernel code */ + ObjectFile *kernel; + + /** Begining of kernel code */ + Addr kernelStart; + + /** End of kernel code */ + Addr kernelEnd; + + /** Entry point in the kernel to start at */ + Addr kernelEntry; + + Kernel::Binning *kernelBinning; + +#else + + int page_ptr; + + +#endif // FULL_SYSTEM + + protected: + +#if FULL_SYSTEM + /** + * Fix up an address used to match PCs for hooking simulator + * events on to target function executions. See comment in + * system.cc for details. + */ + virtual Addr fixFuncEventAddr(Addr addr) = 0; + + /** + * Add a function-based event to the given function, to be looked + * up in the specified symbol table. + */ + template <class T> + T *System::addFuncEvent(SymbolTable *symtab, const char *lbl) + { + Addr addr = 0; // initialize only to avoid compiler warning + + if (symtab->findAddress(lbl, addr)) { + T *ev = new T(&pcEventQueue, lbl, fixFuncEventAddr(addr)); + return ev; + } + + return NULL; + } + + /** Add a function-based event to kernel code. */ + template <class T> + T *System::addKernelFuncEvent(const char *lbl) + { + return addFuncEvent<T>(kernelSymtab, lbl); + } + +#endif + public: +#if FULL_SYSTEM + std::vector<RemoteGDB *> remoteGDB; + std::vector<GDBListener *> gdbListen; + virtual bool breakpoint() = 0; +#endif // FULL_SYSTEM + + public: + struct Params + { + std::string name; + PhysicalMemory *physmem; + +#if FULL_SYSTEM + Tick boot_cpu_frequency; + std::string boot_osflags; + uint64_t init_param; + bool bin; + std::vector<std::string> binned_fns; + bool bin_int; + + std::string kernel_path; + std::string readfile; +#endif + }; + + protected: + Params *_params; + + public: + System(Params *p); + ~System(); + + void startup(); + + const Params *params() const { return (const Params *)_params; } + + public: + +#if FULL_SYSTEM + /** + * Returns the addess the kernel starts at. + * @return address the kernel starts at + */ + Addr getKernelStart() const { return kernelStart; } + + /** + * Returns the addess the kernel ends at. + * @return address the kernel ends at + */ + Addr getKernelEnd() const { return kernelEnd; } + + /** + * Returns the addess the entry point to the kernel code. + * @return entry point of the kernel code + */ + Addr getKernelEntry() const { return kernelEntry; } + +#else + + Addr new_page(); + +#endif // FULL_SYSTEM + + int registerExecContext(ExecContext *xc, int xcIndex); + void replaceExecContext(ExecContext *xc, int xcIndex); + + void regStats(); + void serialize(std::ostream &os); + void unserialize(Checkpoint *cp, const std::string §ion); + + public: + //////////////////////////////////////////// + // + // STATIC GLOBAL SYSTEM LIST + // + //////////////////////////////////////////// + + static std::vector<System *> systemList; + static int numSystemsRunning; + + static void printSystems(); + + +}; + +#endif // __SYSTEM_HH__ |