gem5  v19.0.0.0
All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Modules Pages
Classes | Public Types | Public Member Functions | Static Public Attributes | Private Attributes | List of all members
LinuxMipsSystem Class Reference

This class contains linux specific system code (Loading, Events). More...

#include <system.hh>

Inheritance diagram for LinuxMipsSystem:
MipsSystem System SimObject PCEventScope EventManager Serializable Drainable Stats::Group

Classes

class  PrintThreadInfo
 
class  SkipDelayLoopEvent
 

Public Types

typedef LinuxMipsSystemParams Params
 
- Public Types inherited from MipsSystem
typedef MipsSystemParams Params
 
- Public Types inherited from System
typedef SystemParams Params
 
- Public Types inherited from SimObject
typedef SimObjectParams Params
 

Public Member Functions

Addr InitStack () const
 
Addr EmptyPGT () const
 
Addr EmptyPGE () const
 
Addr ZeroPGE () const
 
Addr StartAddr () const
 
Addr Param () const
 
Addr CommandLine () const
 
Addr InitrdStart () const
 
Addr InitrdSize () const
 
 LinuxMipsSystem (Params *p)
 
 ~LinuxMipsSystem ()
 
void setDelayLoop (ThreadContext *tc)
 
- Public Member Functions inherited from MipsSystem
 MipsSystem (Params *p)
 
 ~MipsSystem ()
 
virtual bool breakpoint ()
 
void setMipsAccess (Addr access)
 Set the m5MipsAccess pointer in the console. More...
 
- Public Member Functions inherited from System
void init () override
 After all objects have been created and all ports are connected, check that the system port is connected. More...
 
MasterPortgetSystemPort ()
 Get a reference to the system port that can be used by non-structural simulation objects like processes or threads, or external entities like loaders and debuggers, etc, to access the memory system. More...
 
PortgetPort (const std::string &if_name, PortID idx=InvalidPortID) override
 Additional function to return the Port of a memory object. More...
 
unsigned int cacheLineSize () const
 Get the cache line size of the system. More...
 
ThreadContextfindFreeContext ()
 
ThreadContextgetThreadContext (ContextID tid) const
 
bool schedule (PCEvent *event) override
 
bool remove (PCEvent *event) override
 
unsigned numContexts () const
 
int numRunningContexts ()
 Return number of running (non-halted) thread contexts in system. More...
 
KvmVMgetKvmVM ()
 Get a pointer to the Kernel Virtual Machine (KVM) SimObject, if present. More...
 
bool validKvmEnvironment () const
 Verify gem5 configuration will support KVM emulation. More...
 
PhysicalMemorygetPhysMem ()
 Get a pointer to access the physical memory of the system. More...
 
Addr freeMemSize () const
 Amount of physical memory that is still free. More...
 
Addr memSize () const
 Amount of physical memory that exists. More...
 
bool isMemAddr (Addr addr) const
 Check if a physical address is within a range of a memory that is part of the global address map. More...
 
Arch getArch () const
 Get the architecture. More...
 
ByteOrder getGuestByteOrder () const
 Get the guest byte order. More...
 
Addr getPageBytes () const
 Get the page bytes for the ISA. More...
 
Addr getPageShift () const
 Get the number of bits worth of in-page address for the ISA. More...
 
ThermalModelgetThermalModel () const
 The thermal model used for this system (if any). More...
 
MasterID getMasterId (const SimObject *master, std::string submaster=std::string())
 Request an id used to create a request object in the system. More...
 
MasterID getGlobalMasterId (const std::string &master_name)
 Registers a GLOBAL MasterID, which is a MasterID not related to any particular SimObject; since no SimObject is passed, the master gets registered by providing the full master name. More...
 
std::string getMasterName (MasterID master_id)
 Get the name of an object for a given request id. More...
 
MasterID lookupMasterId (const SimObject *obj) const
 Looks up the MasterID for a given SimObject returns an invalid MasterID (invldMasterId) if not found. More...
 
MasterID lookupMasterId (const std::string &name) const
 Looks up the MasterID for a given object name string returns an invalid MasterID (invldMasterId) if not found. More...
 
MasterID maxMasters ()
 Get the number of masters registered in the system. More...
 
void regStats () override
 Callback to set stat parameters. More...
 
uint64_t incWorkItemsBegin ()
 Called by pseudo_inst to track the number of work items started by this system. More...
 
uint64_t incWorkItemsEnd ()
 Called by pseudo_inst to track the number of work items completed by this system. More...
 
int markWorkItem (int index)
 Called by pseudo_inst to mark the cpus actively executing work items. More...
 
void workItemBegin (uint32_t tid, uint32_t workid)
 
void workItemEnd (uint32_t tid, uint32_t workid)
 
bool breakpoint ()
 
 System (Params *p)
 
 ~System ()
 
void initState () override
 initState() is called on each SimObject when not restoring from a checkpoint. More...
 
const Paramsparams () const
 
const AddrRangem5opRange () const
 Range used by memory-mapped m5 pseudo-ops if enabled. More...
 
Addr getKernelStart () const
 Returns the address the kernel starts at. More...
 
Addr getKernelEnd () const
 Returns the address the kernel ends at. More...
 
Addr getKernelEntry () const
 Returns the address the entry point to the kernel code. More...
 
Addr allocPhysPages (int npages)
 Allocate npages contiguous unused physical pages. More...
 
ContextID registerThreadContext (ThreadContext *tc, ContextID assigned=InvalidContextID)
 
void replaceThreadContext (ThreadContext *tc, ContextID context_id)
 
void serialize (CheckpointOut &cp) const override
 Serialize an object. More...
 
void unserialize (CheckpointIn &cp) override
 Unserialize an object. More...
 
void drainResume () override
 Resume execution after a successful drain. More...
 
bool isAtomicMode () const
 Is the system in atomic mode? More...
 
bool isTimingMode () const
 Is the system in timing mode? More...
 
bool bypassCaches () const
 Should caches be bypassed? More...
 
Enums::MemoryMode getMemoryMode () const
 Get the memory mode of the system. More...
 
void setMemoryMode (Enums::MemoryMode mode)
 Change the memory mode of the system. More...
 
template<class T , typename... Args>
T * addFuncEvent (const SymbolTable *symtab, const char *lbl, const std::string &desc, Args... args)
 Add a function-based event to the given function, to be looked up in the specified symbol table. More...
 
template<class T >
T * addFuncEvent (const SymbolTable *symtab, const char *lbl)
 
template<class T , typename... Args>
T * addFuncEventOrPanic (const SymbolTable *symtab, const char *lbl, Args... args)
 
template<class T , typename... Args>
T * addKernelFuncEvent (const char *lbl, Args... args)
 Add a function-based event to a kernel symbol. More...
 
template<class T , typename... Args>
T * addKernelFuncEventOrPanic (const char *lbl, Args... args)
 
- Public Member Functions inherited from SimObject
const Paramsparams () const
 
 SimObject (const Params *_params)
 
virtual ~SimObject ()
 
virtual const std::string name () const
 
virtual void loadState (CheckpointIn &cp)
 loadState() is called on each SimObject when restoring from a checkpoint. More...
 
virtual void regProbePoints ()
 Register probe points for this object. More...
 
virtual void regProbeListeners ()
 Register probe listeners for this object. More...
 
ProbeManagergetProbeManager ()
 Get the probe manager for this object. More...
 
virtual void startup ()
 startup() is the final initialization call before simulation. More...
 
DrainState drain () override
 Provide a default implementation of the drain interface for objects that don't need draining. More...
 
virtual void memWriteback ()
 Write back dirty buffers to memory using functional writes. More...
 
virtual void memInvalidate ()
 Invalidate the contents of memory buffers. More...
 
- Public Member Functions inherited from EventManager
 EventManager (EventManager &em)
 
 EventManager (EventManager *em)
 
 EventManager (EventQueue *eq)
 
EventQueueeventQueue () const
 
void schedule (Event &event, Tick when)
 
void deschedule (Event &event)
 
void reschedule (Event &event, Tick when, bool always=false)
 
void schedule (Event *event, Tick when)
 
void deschedule (Event *event)
 
void reschedule (Event *event, Tick when, bool always=false)
 
void wakeupEventQueue (Tick when=(Tick) -1)
 
void setCurTick (Tick newVal)
 
- Public Member Functions inherited from Serializable
 Serializable ()
 
virtual ~Serializable ()
 
void serializeSection (CheckpointOut &cp, const char *name) const
 Serialize an object into a new section. More...
 
void serializeSection (CheckpointOut &cp, const std::string &name) const
 
void unserializeSection (CheckpointIn &cp, const char *name)
 Unserialize an a child object. More...
 
void unserializeSection (CheckpointIn &cp, const std::string &name)
 
- Public Member Functions inherited from Drainable
DrainState drainState () const
 Return the current drain state of an object. More...
 
virtual void notifyFork ()
 Notify a child process of a fork. More...
 
- Public Member Functions inherited from Stats::Group
 Group ()=delete
 
 Group (const Group &)=delete
 
Groupoperator= (const Group &)=delete
 
 Group (Group *parent, const char *name=nullptr)
 Construct a new statistics group. More...
 
virtual ~Group ()
 
virtual void resetStats ()
 Callback to reset stats. More...
 
virtual void preDumpStats ()
 Callback before stats are dumped. More...
 
void addStat (Stats::Info *info)
 Register a stat with this group. More...
 
const std::map< std::string, Group * > & getStatGroups () const
 Get all child groups associated with this object. More...
 
const std::vector< Info * > & getStats () const
 Get all stats associated with this object. More...
 
void addStatGroup (const char *name, Group *block)
 Add a stat block as a child of this block. More...
 

Static Public Attributes

static const int CommandLineSize = 256
 
- Static Public Attributes inherited from System
static std::vector< System * > systemList
 
static int numSystemsRunning = 0
 
static const int maxPID = 32768
 
- Static Public Attributes inherited from Serializable
static int ckptCount = 0
 
static int ckptMaxCount = 0
 
static int ckptPrevCount = -1
 

Private Attributes

Addr KernelStart
 Addresses defining where the kernel bootloader places various elements. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from System
static void printSystems ()
 
- Static Public Member Functions inherited from SimObject
static void serializeAll (CheckpointOut &cp)
 Serialize all SimObjects in the system. More...
 
static SimObjectfind (const char *name)
 Find the SimObject with the given name and return a pointer to it. More...
 
- Static Public Member Functions inherited from Serializable
static const std::string & currentSection ()
 Get the fully-qualified name of the active section. More...
 
static void serializeAll (const std::string &cpt_dir)
 
static void unserializeGlobals (CheckpointIn &cp)
 
- Public Attributes inherited from MipsSystem
SymbolTableconsoleSymtab
 console symbol table More...
 
ObjectFileconsole
 Object pointer for the console code. More...
 
- Public Attributes inherited from System
std::vector< ThreadContext * > threadContexts
 
const bool multiThread
 
Addr pagePtr
 
uint64_t init_param
 
PortProxy physProxy
 Port to physical memory used for writing object files into ram at boot. More...
 
SymbolTablekernelSymtab
 kernel symbol table More...
 
ObjectFilekernel
 Object pointer for the kernel code. More...
 
MemoryImage kernelImage
 
std::vector< ObjectFile * > kernelExtras
 Additional object files. More...
 
Addr kernelStart
 Beginning of kernel code. More...
 
Addr kernelEnd
 End of kernel code. More...
 
Addr kernelEntry
 Entry point in the kernel to start at. More...
 
Addr loadAddrMask
 Mask that should be anded for binary/symbol loading. More...
 
Addr loadAddrOffset
 Offset that should be used for binary/symbol loading. More...
 
std::vector< BaseRemoteGDB * > remoteGDB
 
Counter totalNumInsts
 
std::map< std::pair< uint32_t, uint32_t >, TicklastWorkItemStarted
 
std::map< uint32_t, Stats::Histogram * > workItemStats
 
FutexMap futexMap
 
std::set< int > PIDs
 Process set to track which PIDs have already been allocated. More...
 
std::list< BasicSignalsignalList
 
std::vector< RedirectPath * > redirectPaths
 
- Protected Member Functions inherited from MipsSystem
const Paramsparams () const
 
virtual Addr fixFuncEventAddr (Addr addr)
 Fix up an address used to match PCs for hooking simulator events on to target function executions. More...
 
- Protected Member Functions inherited from System
std::string stripSystemName (const std::string &master_name) const
 Strips off the system name from a master name. More...
 
MasterID _getMasterId (const SimObject *master, const std::string &master_name)
 helper function for getMasterId More...
 
std::string leafMasterName (const SimObject *master, const std::string &submaster)
 Helper function for constructing the full (sub)master name by providing the root master and the relative submaster name. More...
 
virtual void serializeSymtab (CheckpointOut &os) const
 If needed, serialize additional symbol table entries for a specific subclass of this system. More...
 
virtual void unserializeSymtab (CheckpointIn &cp)
 If needed, unserialize additional symbol table entries for a specific subclass of this system. More...
 
- Protected Member Functions inherited from Drainable
 Drainable ()
 
virtual ~Drainable ()
 
void signalDrainDone () const
 Signal that an object is drained. More...
 
- Protected Attributes inherited from System
KvmVM *const kvmVM
 
PhysicalMemory physmem
 
Enums::MemoryMode memoryMode
 
const unsigned int _cacheLineSize
 
uint64_t workItemsBegin
 
uint64_t workItemsEnd
 
uint32_t numWorkIds
 
std::vector< bool > activeCpus
 
std::vector< MasterInfomasters
 This array is a per-system list of all devices capable of issuing a memory system request and an associated string for each master id. More...
 
ThermalModelthermalModel
 
Params_params
 
const AddrRange _m5opRange
 Range for memory-mapped m5 pseudo ops. More...
 
- Protected Attributes inherited from SimObject
const SimObjectParams * _params
 Cached copy of the object parameters. More...
 
- Protected Attributes inherited from EventManager
EventQueueeventq
 A pointer to this object's event queue. More...
 

Detailed Description

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.

Definition at line 51 of file system.hh.

Member Typedef Documentation

◆ Params

typedef LinuxMipsSystemParams LinuxMipsSystem::Params

Definition at line 91 of file system.hh.

Constructor & Destructor Documentation

◆ LinuxMipsSystem()

LinuxMipsSystem::LinuxMipsSystem ( Params p)

Definition at line 64 of file system.cc.

Referenced by LinuxMipsSystem::PrintThreadInfo::process().

◆ ~LinuxMipsSystem()

LinuxMipsSystem::~LinuxMipsSystem ( )

Definition at line 69 of file system.cc.

Member Function Documentation

◆ CommandLine()

Addr LinuxMipsSystem::CommandLine ( ) const
inline

Definition at line 85 of file system.hh.

References Param().

◆ EmptyPGE()

Addr LinuxMipsSystem::EmptyPGE ( ) const
inline

Definition at line 80 of file system.hh.

◆ EmptyPGT()

Addr LinuxMipsSystem::EmptyPGT ( ) const
inline

Definition at line 79 of file system.hh.

◆ InitrdSize()

Addr LinuxMipsSystem::InitrdSize ( ) const
inline

Definition at line 87 of file system.hh.

References Param().

◆ InitrdStart()

Addr LinuxMipsSystem::InitrdStart ( ) const
inline

Definition at line 86 of file system.hh.

References Param().

◆ InitStack()

Addr LinuxMipsSystem::InitStack ( ) const
inline

Definition at line 78 of file system.hh.

◆ Param()

Addr LinuxMipsSystem::Param ( ) const
inline

Definition at line 84 of file system.hh.

References ZeroPGE().

Referenced by CommandLine(), InitrdSize(), and InitrdStart().

◆ setDelayLoop()

void LinuxMipsSystem::setDelayLoop ( ThreadContext tc)

Definition at line 75 of file system.cc.

References panic.

Referenced by LinuxMipsSystem::SkipDelayLoopEvent::process().

◆ StartAddr()

Addr LinuxMipsSystem::StartAddr ( ) const
inline

Definition at line 82 of file system.hh.

◆ ZeroPGE()

Addr LinuxMipsSystem::ZeroPGE ( ) const
inline

Definition at line 81 of file system.hh.

Referenced by Param().

Member Data Documentation

◆ CommandLineSize

const int LinuxMipsSystem::CommandLineSize = 256
static

Definition at line 88 of file system.hh.

◆ KernelStart

Addr LinuxMipsSystem::KernelStart
private

Addresses defining where the kernel bootloader places various elements.

Details found in include/asm-mips/system.h

Definition at line 75 of file system.hh.


The documentation for this class was generated from the following files:

Generated on Fri Feb 28 2020 16:27:12 for gem5 by doxygen 1.8.13