From 03a2aca9a9fc6afa8d7e6f92cc9acc1e9b37a7cd Mon Sep 17 00:00:00 2001 From: Steve Reinhardt Date: Sat, 28 Jan 2006 00:08:22 -0500 Subject: [PATCH] Changes for Process object initialization in merged-memory environment. System object now exists for both fullsys and syscall emulation, as the latter needs it so that Process objects can find the shared PhysicalMemory for initialization. Changes are incomplete: still need to fix up Process (& EioProcess) memory initialization and syscall emulation code for new mem interface. arch/alpha/alpha_linux_process.cc: arch/alpha/alpha_linux_process.hh: arch/alpha/alpha_tru64_process.cc: arch/alpha/alpha_tru64_process.hh: cpu/base.cc: cpu/base.hh: Take System argument in constructor. cpu/exec_context.cc: Take System argument in constructor. Merge two constructors into a single one. cpu/exec_context.hh: Take System argument in constructor. Merge two constructors into a single one. Replace dummy translation with lookup in Process object's page table. python/m5/objects/Process.py: Add System parameter to Process object (& subobjects). python/m5/objects/System.py: Segregate full-system only Process parameters (most of them!). sim/process.cc: Take System argument in constructor. Move initialization to startup() callback to occur after system & cpus are initialized. Generate ProxyMemory object to pass to loader for transparent virtual page allocation. sim/process.hh: Take System argument in constructor. Move initialization to startup() callback to occur after system & cpus are initialized. sim/system.cc: sim/system.hh: Enable System object for non-full-system too. Basically involved putting most of the existing code inside '#ifdef FULL_SYSTEM'. Key thing needed for syscall emulation at this point is the PhysicalMemory object (for Process initialization). --HG-- extra : convert_revision : f0f34b47bd4f77b502191affd3d03b4d6d9bcdd8 --- arch/alpha/alpha_linux_process.cc | 5 +- arch/alpha/alpha_linux_process.hh | 1 + arch/alpha/alpha_tru64_process.cc | 4 +- arch/alpha/alpha_tru64_process.hh | 1 + cpu/base.cc | 15 +++-- cpu/base.hh | 7 +- cpu/exec_context.cc | 16 ++--- cpu/exec_context.hh | 38 ++++------- python/m5/objects/Process.py | 1 + python/m5/objects/System.py | 28 ++++---- sim/process.cc | 102 +++++++++++++++++------------- sim/process.hh | 38 +++++++---- sim/system.cc | 75 ++++++++++++++++++---- sim/system.hh | 43 +++++++++++-- 14 files changed, 238 insertions(+), 136 deletions(-) diff --git a/arch/alpha/alpha_linux_process.cc b/arch/alpha/alpha_linux_process.cc index 83b0b5e5a..1c3a21582 100644 --- a/arch/alpha/alpha_linux_process.cc +++ b/arch/alpha/alpha_linux_process.cc @@ -943,12 +943,13 @@ AlphaLinuxProcess::syscall(ExecContext *xc) AlphaLinuxProcess::AlphaLinuxProcess(const std::string &name, ObjectFile *objFile, + System *system, int stdin_fd, int stdout_fd, int stderr_fd, std::vector &argv, std::vector &envp) - : LiveProcess(name, objFile, stdin_fd, stdout_fd, stderr_fd, argv, envp) + : LiveProcess(name, objFile, system, stdin_fd, stdout_fd, stderr_fd, + argv, envp) { - init_regs->intRegFile[0] = 0; } diff --git a/arch/alpha/alpha_linux_process.hh b/arch/alpha/alpha_linux_process.hh index b4fe8e8f8..6a4f31e5b 100644 --- a/arch/alpha/alpha_linux_process.hh +++ b/arch/alpha/alpha_linux_process.hh @@ -39,6 +39,7 @@ class AlphaLinuxProcess : public LiveProcess /// Constructor. AlphaLinuxProcess(const std::string &name, ObjectFile *objFile, + System *system, int stdin_fd, int stdout_fd, int stderr_fd, std::vector &argv, std::vector &envp); diff --git a/arch/alpha/alpha_tru64_process.cc b/arch/alpha/alpha_tru64_process.cc index b7a1c7d59..3b5eef8b0 100644 --- a/arch/alpha/alpha_tru64_process.cc +++ b/arch/alpha/alpha_tru64_process.cc @@ -1924,11 +1924,13 @@ AlphaTru64Process::syscall(ExecContext *xc) AlphaTru64Process::AlphaTru64Process(const std::string &name, ObjectFile *objFile, + System *system, int stdin_fd, int stdout_fd, int stderr_fd, std::vector &argv, std::vector &envp) - : LiveProcess(name, objFile, stdin_fd, stdout_fd, stderr_fd, argv, envp) + : LiveProcess(name, objFile, system, stdin_fd, stdout_fd, stderr_fd, + argv, envp) { } diff --git a/arch/alpha/alpha_tru64_process.hh b/arch/alpha/alpha_tru64_process.hh index 49979806c..c28598700 100644 --- a/arch/alpha/alpha_tru64_process.hh +++ b/arch/alpha/alpha_tru64_process.hh @@ -38,6 +38,7 @@ class AlphaTru64Process : public LiveProcess /// Constructor. AlphaTru64Process(const std::string &name, ObjectFile *objFile, + System *system, int stdin_fd, int stdout_fd, int stderr_fd, std::vector &argv, std::vector &envp); diff --git a/cpu/base.cc b/cpu/base.cc index 8b94b8533..64ea9aaa8 100644 --- a/cpu/base.cc +++ b/cpu/base.cc @@ -59,7 +59,7 @@ BaseCPU::BaseCPU(Params *p) #else BaseCPU::BaseCPU(Params *p) : SimObject(p->name), clock(p->clock), params(p), - number_of_threads(p->numberOfThreads) + number_of_threads(p->numberOfThreads), system(p->system) #endif { DPRINTF(FullCPU, "BaseCPU: Creating object, mem address %#x.\n", this); @@ -211,15 +211,18 @@ BaseCPU::registerExecContexts() { for (int i = 0; i < execContexts.size(); ++i) { ExecContext *xc = execContexts[i]; + + if (xc->status() == ExecContext::Suspended) { #if FULL_SYSTEM - int id = params->cpu_id; - if (id != -1) - id += i; + int id = params->cpu_id; + if (id != -1) + id += i; - xc->cpu_id = system->registerExecContext(xc, id); + xc->cpu_id = system->registerExecContext(xc, id); #else - xc->cpu_id = xc->process->registerExecContext(xc); + xc->cpu_id = xc->process->registerExecContext(xc); #endif + } } } diff --git a/cpu/base.hh b/cpu/base.hh index 4a44ab804..826dcb2ec 100644 --- a/cpu/base.hh +++ b/cpu/base.hh @@ -38,10 +38,7 @@ #include "sim/sim_object.hh" #include "targetarch/isa_traits.hh" -#if FULL_SYSTEM class System; -#endif - class BranchPred; class ExecContext; @@ -122,8 +119,8 @@ class BaseCPU : public SimObject Tick clock; bool functionTrace; Tick functionTraceStart; -#if FULL_SYSTEM System *system; +#if FULL_SYSTEM int cpu_id; Tick profile; #endif @@ -170,9 +167,9 @@ class BaseCPU : public SimObject */ EventQueue **comLoadEventQueue; -#if FULL_SYSTEM System *system; +#if FULL_SYSTEM /** * Serialize this object to the given output stream. * @param os The stream to serialize to. diff --git a/cpu/exec_context.cc b/cpu/exec_context.cc index 9bed3ba47..037319a8f 100644 --- a/cpu/exec_context.cc +++ b/cpu/exec_context.cc @@ -76,19 +76,13 @@ ExecContext::ExecContext(BaseCPU *_cpu, int _thread_num, System *_sys, profilePC = 3; } #else -ExecContext::ExecContext(BaseCPU *_cpu, int _thread_num, - Process *_process, int _asid) +ExecContext::ExecContext(BaseCPU *_cpu, int _thread_num, System *_system, + FunctionalMemory *_mem, Process *_process, int _asid) : _status(ExecContext::Unallocated), cpu(_cpu), thread_num(_thread_num), cpu_id(-1), - process(_process), mem(process->getMemory()), asid(_asid), - func_exe_inst(0), storeCondFailures(0) -{ - memset(®s, 0, sizeof(RegFile)); -} - -ExecContext::ExecContext(BaseCPU *_cpu, int _thread_num, - FunctionalMemory *_mem, int _asid) - : cpu(_cpu), thread_num(_thread_num), process(0), mem(_mem), asid(_asid), + system(_system), mem(_mem), + process(_process), + asid(_asid), func_exe_inst(0), storeCondFailures(0) { memset(®s, 0, sizeof(RegFile)); diff --git a/cpu/exec_context.hh b/cpu/exec_context.hh index 6f38a6960..70d731517 100644 --- a/cpu/exec_context.hh +++ b/cpu/exec_context.hh @@ -31,13 +31,12 @@ #include "config/full_system.hh" #include "mem/functional/functional.hh" +#include "mem/mem_interface.hh" #include "mem/mem_req.hh" #include "sim/host.hh" #include "sim/serialize.hh" #include "targetarch/byte_swap.hh" -// forward declaration: see functional_memory.hh -class FunctionalMemory; class PhysicalMemory; class BaseCPU; @@ -123,11 +122,12 @@ class ExecContext // it belongs. For full-system mode, this is the system CPU ID. int cpu_id; -#if FULL_SYSTEM + System *system; FunctionalMemory *mem; + +#if FULL_SYSTEM AlphaITB *itb; AlphaDTB *dtb; - System *system; // the following two fields are redundant, since we can always // look them up through the system pointer, but we'll leave them @@ -148,8 +148,6 @@ class ExecContext #else Process *process; - FunctionalMemory *mem; // functional storage for process address space - // Address space ID. Note that this is used for TIMING cache // simulation only; all functional memory accesses should use // one of the FunctionalMemory pointers above. @@ -186,9 +184,8 @@ class ExecContext ExecContext(BaseCPU *_cpu, int _thread_num, System *_system, AlphaITB *_itb, AlphaDTB *_dtb, FunctionalMemory *_dem); #else - ExecContext(BaseCPU *_cpu, int _thread_num, Process *_process, int _asid); - ExecContext(BaseCPU *_cpu, int _thread_num, FunctionalMemory *_mem, - int _asid); + ExecContext(BaseCPU *_cpu, int _thread_num, System *_system, + FunctionalMemory *_mem, Process *_process, int _asid); #endif virtual ~ExecContext(); @@ -230,28 +227,19 @@ class ExecContext int getInstAsid() { return asid; } int getDataAsid() { return asid; } - Fault dummyTranslation(MemReqPtr &req) - { -#if 0 - assert((req->vaddr >> 48 & 0xffff) == 0); -#endif - - // put the asid in the upper 16 bits of the paddr - req->paddr = req->vaddr & ~((Addr)0xffff << sizeof(Addr) * 8 - 16); - req->paddr = req->paddr | (Addr)req->asid << sizeof(Addr) * 8 - 16; - return No_Fault; - } Fault translateInstReq(MemReqPtr &req) { - return dummyTranslation(req); + return process->pTable->translate(req); } + Fault translateDataReadReq(MemReqPtr &req) { - return dummyTranslation(req); + return process->pTable->translate(req); } + Fault translateDataWriteReq(MemReqPtr &req) { - return dummyTranslation(req); + return process->pTable->translate(req); } #endif @@ -334,7 +322,9 @@ class ExecContext Fault instRead(MemReqPtr &req) { - return mem->read(req, inst); + panic("instRead not implemented"); + // return funcPhysMem->read(req, inst); + return No_Fault; } // diff --git a/python/m5/objects/Process.py b/python/m5/objects/Process.py index b4ccc1bec..def70dbaa 100644 --- a/python/m5/objects/Process.py +++ b/python/m5/objects/Process.py @@ -3,6 +3,7 @@ class Process(SimObject): type = 'Process' abstract = True output = Param.String('cout', 'filename for stdout/stderr') + system = Param.System(Parent.any, "system process will run on") class LiveProcess(Process): type = 'LiveProcess' diff --git a/python/m5/objects/System.py b/python/m5/objects/System.py index 6d1d6a68c..8c5d93f7b 100644 --- a/python/m5/objects/System.py +++ b/python/m5/objects/System.py @@ -1,17 +1,19 @@ from m5 import * class System(SimObject): type = 'System' - boot_cpu_frequency = Param.Frequency(Self.cpu[0].clock.frequency, - "boot processor frequency") - memctrl = Param.MemoryController(Parent.any, "memory controller") physmem = Param.PhysicalMemory(Parent.any, "phsyical memory") - kernel = Param.String("file that contains the kernel code") - console = Param.String("file that contains the console code") - pal = Param.String("file that contains palcode") - readfile = Param.String("", "file to read startup script from") - init_param = Param.UInt64(0, "numerical value to pass into simulator") - boot_osflags = Param.String("a", "boot flags to pass to the kernel") - system_type = Param.UInt64("Type of system we are emulating") - system_rev = Param.UInt64("Revision of system we are emulating") - bin = Param.Bool(False, "is this system binned") - binned_fns = VectorParam.String([], "functions broken down and binned") + + if build_env['FULL_SYSTEM']: + boot_cpu_frequency = Param.Frequency(Self.cpu[0].clock.frequency, + "boot processor frequency") + memctrl = Param.MemoryController(Parent.any, "memory controller") + kernel = Param.String("file that contains the kernel code") + console = Param.String("file that contains the console code") + pal = Param.String("file that contains palcode") + readfile = Param.String("", "file to read startup script from") + init_param = Param.UInt64(0, "numerical value to pass into simulator") + boot_osflags = Param.String("a", "boot flags to pass to the kernel") + system_type = Param.UInt64("Type of system we are emulating") + system_rev = Param.UInt64("Revision of system we are emulating") + bin = Param.Bool(False, "is this system binned") + binned_fns = VectorParam.String([], "functions broken down and binned") diff --git a/sim/process.cc b/sim/process.cc index 395e2eb0a..ad8cb2e96 100644 --- a/sim/process.cc +++ b/sim/process.cc @@ -41,11 +41,14 @@ #include "cpu/smt.hh" #include "encumbered/cpu/full/thread.hh" #include "encumbered/eio/eio.hh" -#include "encumbered/mem/functional/main.hh" +#include "mem/page_table.hh" +#include "mem/functional/physical.hh" +#include "mem/functional/proxy.hh" #include "sim/builder.hh" #include "sim/fake_syscall.hh" #include "sim/process.hh" #include "sim/stats.hh" +#include "sim/system.hh" #ifdef TARGET_ALPHA #include "arch/alpha/alpha_tru64_process.hh" @@ -67,18 +70,12 @@ using namespace std; int num_processes = 0; Process::Process(const string &nm, + System *_system, int stdin_fd, // initial I/O descriptors int stdout_fd, int stderr_fd) - : SimObject(nm) + : SimObject(nm), system(_system) { - // allocate memory space - memory = new MainMemory(nm + ".MainMem"); - - // allocate initial register file - init_regs = new RegFile; - memset(init_regs, 0, sizeof(RegFile)); - // initialize first 3 fds (stdin, stdout, stderr) fd_map[STDIN_FILENO] = stdin_fd; fd_map[STDOUT_FILENO] = stdout_fd; @@ -91,9 +88,11 @@ Process::Process(const string &nm, mmap_start = mmap_end = 0; nxm_start = nxm_end = 0; + pTable = new PageTable(system); // other parameters will be initialized when the program is loaded } + void Process::regStats() { @@ -145,12 +144,7 @@ Process::registerExecContext(ExecContext *xc) int myIndex = execContexts.size(); execContexts.push_back(xc); - if (myIndex == 0) { - // copy process's initial regs struct - xc->regs = *init_regs; - } - - // return CPU number to caller and increment available CPU count + // return CPU number to caller return myIndex; } @@ -158,7 +152,9 @@ void Process::startup() { if (execContexts.empty()) - return; + fatal("Process %s is not associated with any CPUs!\n", name()); + + initVirtMem = new ProxyMemory(system->physmem, pTable); // first exec context for this process... initialize & enable ExecContext *xc = execContexts[0]; @@ -249,23 +245,26 @@ DEFINE_SIM_OBJECT_CLASS_NAME("Process", Process) static void copyStringArray(vector &strings, Addr array_ptr, Addr data_ptr, - FunctionalMemory *memory) + FunctionalMemory *func) { for (int i = 0; i < strings.size(); ++i) { - memory->access(Write, array_ptr, &data_ptr, sizeof(Addr)); - memory->writeString(data_ptr, strings[i].c_str()); + func->prot_write(array_ptr, (uint8_t*)&data_ptr, sizeof(Addr)); + func->writeString(data_ptr, strings[i].c_str()); array_ptr += sizeof(Addr); data_ptr += strings[i].size() + 1; } // add NULL terminator data_ptr = 0; - memory->access(Write, array_ptr, &data_ptr, sizeof(Addr)); + + func->prot_write(array_ptr, (uint8_t*)&data_ptr, sizeof(Addr)); } -LiveProcess::LiveProcess(const string &nm, ObjectFile *objFile, +LiveProcess::LiveProcess(const string &nm, ObjectFile *_objFile, + System *_system, int stdin_fd, int stdout_fd, int stderr_fd, - vector &argv, vector &envp) - : Process(nm, stdin_fd, stdout_fd, stderr_fd) + vector &_argv, vector &_envp) + : Process(nm, _system, stdin_fd, stdout_fd, stderr_fd), + objFile(_objFile), argv(_argv), envp(_envp) { prog_fname = argv[0]; @@ -274,10 +273,18 @@ LiveProcess::LiveProcess(const string &nm, ObjectFile *objFile, text_size = objFile->textSize(); data_base = objFile->dataBase(); data_size = objFile->dataSize() + objFile->bssSize(); - brk_point = roundUp(data_base + data_size, VMPageSize); + brk_point = = roundUp(data_base + data_size, VMPageSize); - // load object file into target memory - objFile->loadSections(memory); + // Set up stack. On Alpha, stack goes below text section. This + // code should get moved to some architecture-specific spot. + stack_base = text_base - (409600+4096); + + // Set up region for mmaps. Tru64 seems to start just above 0 and + // grow up from there. + mmap_start = mmap_end = 0x10000; + + // Set pointer for next thread stack. Reserve 8M for main stack. + next_thread_stack_base = stack_base - (8 * 1024 * 1024); // load up symbols, if any... these may be used for debugging or // profiling. @@ -290,17 +297,15 @@ LiveProcess::LiveProcess(const string &nm, ObjectFile *objFile, debugSymbolTable = NULL; } } +} - // Set up stack. On Alpha, stack goes below text section. This - // code should get moved to some architecture-specific spot. - stack_base = text_base - (409600+4096); - - // Set up region for mmaps. Tru64 seems to start just above 0 and - // grow up from there. - mmap_start = mmap_end = 0x10000; +void +LiveProcess::startup() +{ + Process::startup(); - // Set pointer for next thread stack. Reserve 8M for main stack. - next_thread_stack_base = stack_base - (8 * 1024 * 1024); + // load object file into target memory + objFile->loadSections(initVirtMem); // Calculate how much space we need for arg & env arrays. int argv_array_size = sizeof(Addr) * (argv.size() + 1); @@ -325,6 +330,8 @@ LiveProcess::LiveProcess(const string &nm, ObjectFile *objFile, // align it stack_min &= ~7; stack_size = stack_base - stack_min; + // map memory + pTable->allocate(stack_min, stack_size); // map out initial stack contents Addr argv_array_base = stack_min + sizeof(uint64_t); // room for argc @@ -334,10 +341,12 @@ LiveProcess::LiveProcess(const string &nm, ObjectFile *objFile, // write contents to stack uint64_t argc = argv.size(); - memory->access(Write, stack_min, &argc, sizeof(uint64_t)); + initVirtMem->prot_write(stack_min, (uint8_t*)&argc, sizeof(uint64_t)); + + copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem); + copyStringArray(envp, envp_array_base, env_data_base, initVirtMem); - copyStringArray(argv, argv_array_base, arg_data_base, memory); - copyStringArray(envp, envp_array_base, env_data_base, memory); + RegFile *init_regs = &(execContexts[0]->regs); init_regs->intRegFile[ArgumentReg0] = argc; init_regs->intRegFile[ArgumentReg1] = argv_array_base; @@ -345,11 +354,13 @@ LiveProcess::LiveProcess(const string &nm, ObjectFile *objFile, init_regs->intRegFile[GlobalPointerReg] = objFile->globalPointer(); init_regs->pc = prog_entry; init_regs->npc = prog_entry + sizeof(MachInst); + + num_processes++; } LiveProcess * -LiveProcess::create(const string &nm, +LiveProcess::create(const string &nm, System *system, int stdin_fd, int stdout_fd, int stderr_fd, string executable, vector &argv, vector &envp) @@ -362,17 +373,20 @@ LiveProcess::create(const string &nm, // check object type & set up syscall emulation pointer if (objFile->getArch() == ObjectFile::Alpha) { + switch (objFile->getOpSys()) { case ObjectFile::Tru64: - process = new AlphaTru64Process(nm, objFile, + process = new AlphaTru64Process(nm, objFile, system, stdin_fd, stdout_fd, stderr_fd, argv, envp); + break; case ObjectFile::Linux: - process = new AlphaLinuxProcess(nm, objFile, + process = new AlphaLinuxProcess(nm, objFile, system, stdin_fd, stdout_fd, stderr_fd, argv, envp); + break; default: @@ -398,6 +412,7 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(LiveProcess) Param input; Param output; VectorParam env; + SimObjectParam system; END_DECLARE_SIM_OBJECT_PARAMS(LiveProcess) @@ -408,7 +423,8 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(LiveProcess) INIT_PARAM(executable, "executable (overrides cmd[0] if set)"), INIT_PARAM(input, "filename for stdin (dflt: use sim stdin)"), INIT_PARAM(output, "filename for stdout/stderr (dflt: use sim stdout)"), - INIT_PARAM(env, "environment settings") + INIT_PARAM(env, "environment settings"), + INIT_PARAM(system, "system") END_INIT_SIM_OBJECT_PARAMS(LiveProcess) @@ -435,7 +451,7 @@ CREATE_SIM_OBJECT(LiveProcess) stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO; - return LiveProcess::create(getInstanceName(), + return LiveProcess::create(getInstanceName(), system, stdin_fd, stdout_fd, stderr_fd, (string)executable == "" ? cmd[0] : executable, cmd, env); diff --git a/sim/process.hh b/sim/process.hh index 2116ef632..e7e0b8a9b 100644 --- a/sim/process.hh +++ b/sim/process.hh @@ -40,18 +40,27 @@ #include -#include "targetarch/isa_traits.hh" -#include "sim/sim_object.hh" -#include "sim/stats.hh" #include "base/statistics.hh" #include "base/trace.hh" +#include "mem/base_mem.hh" +#include "mem/mem_interface.hh" +#include "mem/page_table.hh" +#include "sim/sim_object.hh" +#include "sim/stats.hh" +#include "targetarch/isa_traits.hh" class ExecContext; class FunctionalMemory; +class System; + class Process : public SimObject { public: + /// Pointer to object representing the system this process is + /// running on. + System *system; + // have we initialized an execution context from this process? If // yes, subsequent contexts are assumed to be for dynamically // created threads and are not initialized. @@ -71,15 +80,12 @@ class Process : public SimObject WaitRec(Addr chan, ExecContext *ctx) : waitChan(chan), waitingContext(ctx) - { - } + { } }; // list of all blocked contexts std::list waitList; - RegFile *init_regs; // initial register contents - Addr text_base; // text (code) segment base unsigned text_size; // text (code) size in bytes @@ -112,6 +118,7 @@ class Process : public SimObject protected: // constructor Process(const std::string &nm, + System *_system, int stdin_fd, // initial I/O descriptors int stdout_fd, int stderr_fd); @@ -120,7 +127,11 @@ class Process : public SimObject virtual void startup(); protected: - FunctionalMemory *memory; + /// Memory object for initialization (image loading) + FunctionalMemory *initVirtMem; + + public: + PageTable *pTable; private: // file descriptor remapping support @@ -175,8 +186,6 @@ class Process : public SimObject } virtual void syscall(ExecContext *xc) = 0; - - virtual FunctionalMemory *getMemory() { return memory; } }; // @@ -186,16 +195,23 @@ class ObjectFile; class LiveProcess : public Process { protected: + ObjectFile *objFile; + std::vector argv; + std::vector envp; + LiveProcess(const std::string &nm, ObjectFile *objFile, - int stdin_fd, int stdout_fd, int stderr_fd, + System *_system, int stdin_fd, int stdout_fd, int stderr_fd, std::vector &argv, std::vector &envp); + void startup(); + public: // this function is used to create the LiveProcess object, since // we can't tell which subclass of LiveProcess to use until we // open and look at the object file. static LiveProcess *create(const std::string &nm, + System *_system, int stdin_fd, int stdout_fd, int stderr_fd, std::string executable, std::vector &argv, diff --git a/sim/system.cc b/sim/system.cc index 4bcc89c56..a79038308 100644 --- a/sim/system.cc +++ b/sim/system.cc @@ -28,15 +28,17 @@ #include "base/loader/object_file.hh" #include "base/loader/symtab.hh" -#include "base/remote_gdb.hh" #include "cpu/exec_context.hh" -#include "kern/kernel_stats.hh" -#include "mem/functional/memory_control.hh" #include "mem/functional/physical.hh" -#include "targetarch/vtophys.hh" #include "sim/builder.hh" #include "sim/system.hh" #include "base/trace.hh" +#if FULL_SYSTEM +#include "base/remote_gdb.hh" +#include "kern/kernel_stats.hh" +#include "mem/functional/memory_control.hh" +#include "targetarch/vtophys.hh" +#endif using namespace std; @@ -45,12 +47,18 @@ vector System::systemList; int System::numSystemsRunning = 0; System::System(Params *p) - : SimObject(p->name), memctrl(p->memctrl), physmem(p->physmem), - init_param(p->init_param), numcpus(0), params(p) + : SimObject(p->name), physmem(p->physmem), numcpus(0), +#if FULL_SYSTEM + memctrl(p->memctrl), init_param(p->init_param), +#else + page_ptr(0), +#endif + params(p) { // add self to global system list systemList.push_back(this); +#if FULL_SYSTEM kernelSymtab = new SymbolTable; consoleSymtab = new SymbolTable; palSymtab = new SymbolTable; @@ -123,7 +131,7 @@ System::System(Params *p) DPRINTF(Loader, "Kernel loaded...\n"); Addr addr = 0; -#ifndef NDEBUG +#ifdef DEBUG consolePanicEvent = addConsoleFuncEvent("panic"); #endif @@ -157,14 +165,17 @@ System::System(Params *p) } else panic("could not find hwrpb\n"); + kernelBinning = new Kernel::Binning(this); + +#endif // FULL_SYSTEM + // increment the number of running systms numSystemsRunning++; - - kernelBinning = new Kernel::Binning(this); } System::~System() { +#if FULL_SYSTEM delete kernelSymtab; delete consoleSymtab; delete kernel; @@ -176,6 +187,8 @@ System::~System() #ifdef DEBUG delete consolePanicEvent; #endif + +#endif // FULL_SYSTEM } @@ -213,6 +226,7 @@ System::~System() Addr System::fixFuncEventAddr(Addr addr) { +#if FULL_SYSTEM // mask for just the opcode, Ra, and Rb fields (not the offset) const uint32_t inst_mask = 0xffff0000; // ldah gp,X(pv): opcode 9, Ra = 29, Rb = 27 @@ -234,9 +248,13 @@ System::fixFuncEventAddr(Addr addr) } else { return addr; } +#else + panic("System::fixFuncEventAddr needs to be rewritten " + "to work with syscall emulation"); +#endif // FULL_SYSTEM} } - +#if FULL_SYSTEM void System::setAlphaAccess(Addr access) { @@ -263,6 +281,8 @@ System::breakpoint() int rgdb_wait = -1; +#endif // FULL_SYSTEM + int System::registerExecContext(ExecContext *xc, int id) { @@ -282,6 +302,7 @@ System::registerExecContext(ExecContext *xc, int id) execContexts[id] = xc; numcpus++; +#if FULL_SYSTEM RemoteGDB *rgdb = new RemoteGDB(this, xc); GDBListener *gdbl = new GDBListener(rgdb, 7000 + id); gdbl->listen(); @@ -297,6 +318,7 @@ System::registerExecContext(ExecContext *xc, int id) } remoteGDB[id] = rgdb; +#endif // FULL_SYSTEM return id; } @@ -320,34 +342,52 @@ System::replaceExecContext(ExecContext *xc, int id) } execContexts[id] = xc; +#if FULL_SYSTEM remoteGDB[id]->replaceExecContext(xc); +#endif // FULL_SYSTEM } +#if !FULL_SYSTEM +Addr +System::new_page() +{ + Addr return_addr = page_ptr << LogVMPageSize; + ++page_ptr; + return return_addr; +} +#endif + void System::regStats() { +#if FULL_SYSTEM kernelBinning->regStats(name() + ".kern"); +#endif // FULL_SYSTEM } void System::serialize(ostream &os) { +#if FULL_SYSTEM kernelBinning->serialize(os); kernelSymtab->serialize("kernel_symtab", os); consoleSymtab->serialize("console_symtab", os); palSymtab->serialize("pal_symtab", os); +#endif // FULL_SYSTEM } void System::unserialize(Checkpoint *cp, const string §ion) { +#if FULL_SYSTEM kernelBinning->unserialize(cp, section); kernelSymtab->unserialize("kernel_symtab", cp, section); consoleSymtab->unserialize("console_symtab", cp, section); palSymtab->unserialize("pal_symtab", cp, section); +#endif // FULL_SYSTEM } void @@ -370,9 +410,11 @@ printSystems() BEGIN_DECLARE_SIM_OBJECT_PARAMS(System) + SimObjectParam physmem; + +#if FULL_SYSTEM Param boot_cpu_frequency; SimObjectParam memctrl; - SimObjectParam physmem; Param kernel; Param console; @@ -388,14 +430,18 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(System) Param bin; VectorParam binned_fns; Param bin_int; +#endif // FULL_SYSTEM END_DECLARE_SIM_OBJECT_PARAMS(System) BEGIN_INIT_SIM_OBJECT_PARAMS(System) + INIT_PARAM(physmem, "physical memory") + +#if FULL_SYSTEM + , INIT_PARAM(boot_cpu_frequency, "Frequency of the boot CPU"), INIT_PARAM(memctrl, "memory controller"), - INIT_PARAM(physmem, "phsyical memory"), INIT_PARAM(kernel, "file that contains the kernel code"), INIT_PARAM(console, "file that contains the console code"), INIT_PARAM(pal, "file that contains palcode"), @@ -408,6 +454,7 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(System) INIT_PARAM_DFLT(bin, "is this system to be binned", false), INIT_PARAM(binned_fns, "functions to be broken down and binned"), INIT_PARAM_DFLT(bin_int, "is interrupt code binned seperately?", true) +#endif // FULL_SYSTEM END_INIT_SIM_OBJECT_PARAMS(System) @@ -415,9 +462,10 @@ CREATE_SIM_OBJECT(System) { System::Params *p = new System::Params; p->name = getInstanceName(); + p->physmem = physmem; +#if FULL_SYSTEM p->boot_cpu_frequency = boot_cpu_frequency; p->memctrl = memctrl; - p->physmem = physmem; p->kernel_path = kernel; p->console_path = console; p->palcode = pal; @@ -429,6 +477,7 @@ CREATE_SIM_OBJECT(System) p->bin = bin; p->binned_fns = binned_fns; p->bin_int = bin_int; +#endif // FULL_SYSTEM return new System(p); } diff --git a/sim/system.hh b/sim/system.hh index aa697c040..6602f8582 100644 --- a/sim/system.hh +++ b/sim/system.hh @@ -35,27 +35,29 @@ #include "base/statistics.hh" #include "base/loader/symtab.hh" #include "cpu/pc_event.hh" -#include "kern/system_events.hh" #include "sim/sim_object.hh" +#if FULL_SYSTEM +#include "kern/system_events.hh" +#endif class BaseCPU; class ExecContext; -class GDBListener; class MemoryController; class ObjectFile; class PhysicalMemory; + +#if FULL_SYSTEM class Platform; +class GDBListener; class RemoteGDB; namespace Kernel { class Binning; } +#endif class System : public SimObject { public: - MemoryController *memctrl; PhysicalMemory *physmem; - Platform *platform; PCEventQueue pcEventQueue; - uint64_t init_param; std::vector execContexts; int numcpus; @@ -68,6 +70,11 @@ class System : public SimObject return numcpus; } +#if FULL_SYSTEM + MemoryController *memctrl; + Platform *platform; + uint64_t init_param; + /** kernel symbol table */ SymbolTable *kernelSymtab; @@ -97,11 +104,18 @@ class System : public SimObject Kernel::Binning *kernelBinning; -#ifndef NDEBUG +#ifdef DEBUG /** Event to halt the simulator if the console calls panic() */ BreakPCEvent *consolePanicEvent; #endif +#else + + int page_ptr; + + +#endif // FULL_SYSTEM + protected: /** @@ -128,6 +142,7 @@ class System : public SimObject return NULL; } +#if FULL_SYSTEM /** Add a function-based event to kernel code. */ template T *System::addKernelFuncEvent(const char *lbl) @@ -148,19 +163,24 @@ class System : public SimObject { return addFuncEvent(consoleSymtab, lbl); } +#endif public: +#if FULL_SYSTEM std::vector remoteGDB; std::vector gdbListen; bool breakpoint(); +#endif // FULL_SYSTEM public: struct Params { std::string name; + PhysicalMemory *physmem; + +#if FULL_SYSTEM Tick boot_cpu_frequency; MemoryController *memctrl; - PhysicalMemory *physmem; uint64_t init_param; bool bin; std::vector binned_fns; @@ -174,6 +194,7 @@ class System : public SimObject std::string readfile; uint64_t system_type; uint64_t system_rev; +#endif }; Params *params; @@ -183,6 +204,8 @@ class System : public SimObject void startup(); public: + +#if FULL_SYSTEM /** * Set the m5AlphaAccess pointer in the console */ @@ -206,6 +229,12 @@ class System : public SimObject */ Addr getKernelEntry() const { return kernelEntry; } +#else + + Addr new_page(); + +#endif // FULL_SYSTEM + int registerExecContext(ExecContext *xc, int xcIndex); void replaceExecContext(ExecContext *xc, int xcIndex); -- 2.30.2