#include <system.hh>

Inheritance diagram for System:

Classes
class	SystemPort
	Private class for the system port which is only used as a master for debug access and for non-structural entities that do not have a port of their own. More...

Public Types
typedef SystemParams	Params

Public Types inherited from MemObject
typedef MemObjectParams	Params

Public Types inherited from ClockedObject
typedef ClockedObjectParams	Params
	Parameters of ClockedObject. More...

Public Types inherited from SimObject
typedef SimObjectParams	Params

Public Member Functions
void	init () override
	After all objects have been created and all ports are connected, check that the system port is connected. More...

MasterPort &	getSystemPort ()
	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...

BaseMasterPort &	getMasterPort (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...

ThreadContext *	getThreadContext (ContextID tid)

int	numContexts ()

int	numRunningContexts ()
	Return number of running (non-halted) thread contexts in system. More...

KvmVM *	getKvmVM ()
	Get a pointer to the Kernel Virtual Machine (KVM) SimObject, if present. More...

PhysicalMemory &	getPhysMem ()
	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...

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...

ThermalModel *	getThermalModel () const
	The thermal model used for this system (if any). More...

MasterID	getMasterId (std::string req_name)
	Request an id used to create a request object in the system. More...

std::string	getMasterName (MasterID master_id)
	Get the name of an object for a given request id. More...

MasterID	maxMasters ()
	Get the number of masters registered in the system. More...

void	regStats () override
	Register statistics for this object. 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)

virtual Addr	fixFuncEventAddr (Addr addr)
	Fix up an address used to match PCs for hooking simulator events on to target function executions. More...

bool	breakpoint ()

	System (Params *p)

	~System ()

void	initState () override
	initState() is called on each SimObject when not restoring from a checkpoint. More...

const Params *	params () const

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 MemObject
const Params *	params () const

	MemObject (const Params *params)

virtual BaseSlavePort &	getSlavePort (const std::string &if_name, PortID idx=InvalidPortID)
	Get a slave port with a given name and index. More...

Public Member Functions inherited from ClockedObject
	ClockedObject (const ClockedObjectParams *p)

const Params *	params () const

Enums::PwrState	pwrState () const

std::string	pwrStateName () const

std::vector< double >	pwrStateWeights () const
	Returns the percentage residency for each power state. More...

void	computeStats ()
	Record stats values like state residency by computing the time difference from previous update. More...

void	pwrState (Enums::PwrState)

Public Member Functions inherited from SimObject
const Params *	params () 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	resetStats ()
	Reset statistics associated with this object. More...

virtual void	regProbePoints ()
	Register probe points for this object. More...

virtual void	regProbeListeners ()
	Register probe listeners for this object. More...

ProbeManager *	getProbeManager ()
	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)

EventQueue *	eventQueue () 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 Clocked
void	updateClockPeriod () const
	Update the tick to the current tick. More...

Tick	clockEdge (Cycles cycles=Cycles(0)) const
	Determine the tick when a cycle begins, by default the current one, but the argument also enables the caller to determine a future cycle. More...

Cycles	curCycle () const
	Determine the current cycle, corresponding to a tick aligned to a clock edge. More...

Tick	nextCycle () const
	Based on the clock of the object, determine the start tick of the first cycle that is at least one cycle in the future. More...

uint64_t	frequency () const

Tick	clockPeriod () const

double	voltage () const

Cycles	ticksToCycles (Tick t) const

Tick	cyclesToTicks (Cycles c) const

Static Public Member Functions
static void	printSystems ()

Static Public Member Functions inherited from SimObject
static void	serializeAll (CheckpointOut &cp)
	Serialize all SimObjects in the system. More...

static SimObject *	find (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
std::vector< ThreadContext * >	threadContexts

int	_numContexts

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...

SymbolTable *	kernelSymtab
	kernel symbol table More...

ObjectFile *	kernel
	Object pointer for the kernel code. 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

std::vector< GDBListener * >	gdbListen

Counter	totalNumInsts

EventQueue	instEventQueue

std::map< std::pair< uint32_t, uint32_t >, Tick >	lastWorkItemStarted

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< BasicSignal >	signalList

Static Public Attributes
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

Protected Member Functions
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 Member Functions inherited from Clocked
	Clocked (ClockDomain &clk_domain)
	Create a clocked object and set the clock domain based on the parameters. More...

	Clocked (Clocked &)=delete

Clocked &	operator= (Clocked &)=delete

virtual	~Clocked ()
	Virtual destructor due to inheritance. More...

void	resetClock () const
	Reset the object's clock using the current global tick value. More...

Protected Attributes
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< std::string >	masterIds
	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...

ThermalModel *	thermalModel

Params *	_params

Protected Attributes inherited from ClockedObject
Enums::PwrState	_currPwrState
	To keep track of the current power state. More...

Tick	prvEvalTick

Stats::Scalar	numPwrStateTransitions

Stats::Distribution	pwrStateClkGateDist

Stats::Vector	pwrStateResidencyTicks

Protected Attributes inherited from SimObject
const SimObjectParams *	_params
	Cached copy of the object parameters. More...

Protected Attributes inherited from EventManager
EventQueue *	eventq
	A pointer to this object's event queue. More...

Private Attributes
SystemPort	_systemPort

Detailed Description

Definition at line 83 of file system.hh.

Member Typedef Documentation

typedef SystemParams System::Params

Definition at line 492 of file system.hh.

Constructor & Destructor Documentation

System::System ( Params * p )

System::~System ( )

Definition at line 185 of file system.cc.

References ArmISA::j, kernel, kernelSymtab, numWorkIds, and workItemStats.

Member Function Documentation

template<class T , typename... Args>

T* System::addFuncEvent	(	const SymbolTable *	symtab,
		const char *	lbl,
		const std::string &	desc,
		Args...	args
	)

inline

Add a function-based event to the given function, to be looked up in the specified symbol table.

The ...OrPanic flavor of the method causes the simulator to panic if the symbol can't be found.

Parameters

symtab	Symbol table to use for look up.
lbl	Function to hook the event to.
desc	Description to be passed to the event.
args	Arguments to be forwarded to the event constructor.

Definition at line 420 of file system.hh.

References addr, SymbolTable::findAddress(), fixFuncEventAddr(), and M5_VAR_USED.

template<class T >

T* System::addFuncEvent	(	const SymbolTable *	symtab,
		const char *	lbl
	)

inline

Definition at line 437 of file system.hh.

template<class T , typename... Args>

T* System::addFuncEventOrPanic	(	const SymbolTable *	symtab,
		const char *	lbl,
		Args...	args
	)

inline

Definition at line 443 of file system.hh.

References ArmISA::e, and panic.

template<class T , typename... Args>

T* System::addKernelFuncEvent	(	const char *	lbl,
		Args...	args
	)

inline

Add a function-based event to a kernel symbol.

These functions work like their addFuncEvent() and addFuncEventOrPanic() counterparts. The only difference is that they automatically use the kernel symbol table. All arguments are forwarded to the underlying method.

See Also: addFuncEvent(); addFuncEventOrPanic()

Parameters

lbl	Function to hook the event to.
args	Arguments to be passed to addFuncEvent

Definition at line 469 of file system.hh.

References kernelSymtab.

Referenced by breakAtKernelFunction().

template<class T , typename... Args>

T* System::addKernelFuncEventOrPanic	(	const char *	lbl,
		Args...	args
	)

inline

Definition at line 476 of file system.hh.

References ArmISA::e, kernelSymtab, and panic.

Addr System::allocPhysPages ( int npages )

Allocate npages contiguous unused physical pages.

Returns: Starting address of first page

Definition at line 339 of file system.cc.

References AddrRange::contains(), fatal, pagePtr, AlphaISA::PageShift, physmem, PhysicalMemory::totalSize(), and warn.

Referenced by Process::allocateMem(), and Process::replicatePage().

bool System::breakpoint ( )

Definition at line 216 of file system.cc.

References remoteGDB.

bool System::bypassCaches ( ) const

inline

Should caches be bypassed?

Some CPUs need to bypass caches to allow direct memory accesses, which is required for hardware virtualization.

Definition at line 165 of file system.hh.

References memoryMode.

Referenced by HDLcd::cmdDisable(), HDLcd::cmdEnable(), HDLcd::drainResume(), CoherentXBar::forwardAtomic(), CoherentXBar::forwardFunctional(), CoherentXBar::forwardTiming(), Cache::functionalAccess(), CoherentXBar::recvAtomic(), Cache::recvAtomic(), Cache::recvAtomicSnoop(), CoherentXBar::recvFunctional(), CoherentXBar::recvTimingReq(), Cache::recvTimingReq(), CoherentXBar::recvTimingResp(), Cache::recvTimingSnoopReq(), Cache::recvTimingSnoopResp(), and DmaReadFifo::resumeFill().

unsigned int System::cacheLineSize ( ) const

inline

Get the cache line size of the system.

Definition at line 193 of file system.hh.

References _cacheLineSize.

Referenced by DmaDevice::cacheBlockSize(), DmaPort::dmaAction(), DRAMSim2::init(), MemFootprintProbe::MemFootprintProbe(), TrafficGen::parseConfig(), ArmISA::ISA::readMiscReg(), and DmaReadFifo::resumeFillFunctional().

void System::drainResume ( )

overridevirtual

Resume execution after a successful drain.

Reimplemented from Drainable.

Definition at line 377 of file system.cc.

References totalNumInsts.

virtual Addr System::fixFuncEventAddr ( Addr addr )

inlinevirtual

Fix up an address used to match PCs for hooking simulator events on to target function executions.

See comment in system.cc for details.

Reimplemented in ArmSystem, SparcSystem, AlphaSystem, X86System, MipsSystem, and RiscvSystem.

Definition at line 401 of file system.hh.

References panic.

Referenced by addFuncEvent().

Addr System::freeMemSize ( ) const

Amount of physical memory that is still free.

Definition at line 365 of file system.cc.

References pagePtr, AlphaISA::PageShift, physmem, and PhysicalMemory::totalSize().

Referenced by Linux::procMeminfo().

Arch System::getArch ( ) const

inline

Get the architecture.

Definition at line 286 of file system.hh.

Referenced by Sequencer::makeRequest().

Addr System::getKernelEnd ( ) const

inline

Returns the address the kernel ends at.

Returns: address the kernel ends at

Definition at line 517 of file system.hh.

References kernelEnd.

Referenced by AlphaBackdoor::startup().

Addr System::getKernelEntry ( ) const

inline

Returns the address the entry point to the kernel code.

Returns: entry point of the kernel code

Definition at line 523 of file system.hh.

References kernelEntry.

Referenced by AlphaBackdoor::startup().

Addr System::getKernelStart ( ) const

inline

Returns the address the kernel starts at.

Returns: address the kernel starts at

Definition at line 511 of file system.hh.

References kernelStart.

Referenced by AlphaBackdoor::startup().

KvmVM* System::getKvmVM ( )

inline

Get a pointer to the Kernel Virtual Machine (KVM) SimObject, if present.

Definition at line 261 of file system.hh.

References kvmVM.

Referenced by MuxingKvmGic::MuxingKvmGic().

MasterID System::getMasterId ( std::string req_name )

Request an id used to create a request object in the system.

All objects that intend to issues requests into the memory system must request an id in the init() phase of startup. All master ids must be fixed by the regStats() phase that immediately precedes it. This allows objects in the memory system to understand how many masters may exist and appropriately name the bins of their per-master stats before the stats are finalized

Definition at line 462 of file system.cc.

References Stats::enabled(), fatal, ArmISA::i, masterIds, SimObject::name(), X86ISA::size(), and startswith().

Referenced by System().

std::string System::getMasterName ( MasterID master_id )

Get the name of an object for a given request id.

Definition at line 490 of file system.cc.

References fatal, and masterIds.

Referenced by BaseTags::regStats(), and BaseCache::regStats().

BaseMasterPort & System::getMasterPort	(	const std::string &	if_name,
		PortID	idx = `InvalidPortID`
	)

overridevirtual

Additional function to return the Port of a memory object.

Reimplemented from MemObject.

Definition at line 203 of file system.cc.

References _systemPort.

Enums::MemoryMode System::getMemoryMode ( ) const

inline

Get the memory mode of the system.

This should only be used by the Python world. The C++ world should use one of the query functions above (isAtomicMode(), isTimingMode(), bypassCaches()).

Definition at line 178 of file system.hh.

References memoryMode.

Addr System::getPageBytes ( ) const

inline

Get the page bytes for the ISA.

Definition at line 291 of file system.hh.

References AlphaISA::PageBytes.

Referenced by AbstractMemory::init().

Addr System::getPageShift ( ) const

inline

Get the number of bits worth of in-page address for the ISA.

Definition at line 296 of file system.hh.

References AlphaISA::PageShift.

PhysicalMemory& System::getPhysMem ( )

inline

Get a pointer to access the physical memory of the system.

Definition at line 266 of file system.hh.

References physmem.

Referenced by KvmVM::delayedStartup().

MasterPort& System::getSystemPort ( )

inline

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.

Returns: a reference to the system port we own

Definition at line 126 of file system.hh.

References _systemPort.

ThermalModel* System::getThermalModel ( ) const

inline

The thermal model used for this system (if any).

Definition at line 301 of file system.hh.

References thermalModel.

Referenced by RealViewTemperatureSensor::read().

ThreadContext* System::getThreadContext ( ContextID tid )

inline

Definition at line 203 of file system.hh.

References threadContexts.

Referenced by AlphaProcess::argsInit(), MipsProcess::argsInit(), PowerProcess::argsInit(), RiscvProcess::argsInit(), SparcProcess::argsInit(), ArmProcess::argsInit(), X86ISA::X86Process::argsInit(), AbstractMemory::checkLockedAddrList(), KvmVM::contextIdToVCpuId(), LinuxArmSystem::dumpDmesg(), AlphaProcess::initState(), SparcProcess::initState(), Process::initState(), ArmProcess32::initState(), ArmProcess64::initState(), Sparc32Process::initState(), X86ISA::X86_64Process::initState(), Sparc64Process::initState(), X86ISA::I386Process::initState(), DistIface::SyncEvent::process(), ArmISA::ISA::setMiscReg(), AlphaProcess::setupASNReg(), ArmISA::ISA::tlbiALL(), ArmISA::ISA::tlbiALLN(), ArmISA::ISA::tlbiMVA(), ArmISA::ISA::tlbiVA(), and DistIface::toggleSync().

uint64_t System::incWorkItemsBegin ( )

inline

Called by pseudo_inst to track the number of work items started by this system.

Definition at line 355 of file system.hh.

References workItemsBegin.

Referenced by PseudoInst::workbegin().

uint64_t System::incWorkItemsEnd ( )

inline

Called by pseudo_inst to track the number of work items completed by this system.

Definition at line 365 of file system.hh.

References workItemsEnd.

Referenced by PseudoInst::workend().

void System::init ( )

overridevirtual

After all objects have been created and all ports are connected, check that the system port is connected.

Reimplemented from SimObject.

Definition at line 195 of file system.cc.

References _systemPort, BaseMasterPort::isConnected(), SimObject::name(), and panic.

void System::initState ( )

overridevirtual

initState() is called on each SimObject when not restoring from a checkpoint.

This provides a hook for state initializations that are only required for a "cold start".

Load the kernel code into memory

Reimplemented from SimObject.

Definition at line 289 of file system.cc.

References DPRINTF, fatal, FullSystem, ArmISA::i, isMemAddr(), kernel, kernelEnd, kernelEntry, kernelStart, loadAddrMask, loadAddrOffset, ObjectFile::loadSections(), params(), physProxy, AlphaISA::startupCPU(), and threadContexts.

Referenced by SparcSystem::initState(), AlphaSystem::initState(), X86System::initState(), and ArmSystem::initState().

bool System::isAtomicMode ( ) const

inline

Is the system in atomic mode?

There are currently two different atomic memory modes: 'atomic', which supports caches; and 'atomic_noncaching', which bypasses caches. The latter is used by hardware virtualized CPUs. SimObjects are expected to use Port::sendAtomic() and Port::recvAtomic() when accessing memory in this mode.

Definition at line 144 of file system.hh.

References memoryMode.

Referenced by DmaPort::sendDma().

bool System::isMemAddr ( Addr addr ) const

Check if a physical address is within a range of a memory that is part of the global address map.

Parameters

addr	A physical address

Returns: Whether the address corresponds to a memory

Definition at line 371 of file system.cc.

References PhysicalMemory::isMemAddr(), and physmem.

Referenced by MemFootprintProbe::handleRequest(), initState(), RubyPort::MemSlavePort::isPhysMemAddress(), RubyPort::ruby_hit_callback(), and TrafficGen::update().

bool System::isTimingMode ( ) const

inline

Is the system in timing mode?

SimObjects are expected to use Port::sendTiming() and Port::recvTiming() when accessing memory in this mode.

Definition at line 155 of file system.hh.

References memoryMode.

Referenced by DRAMCtrl::drainResume(), TrafficGen::init(), TrafficGen::initState(), DmaPort::sendDma(), X86ISA::Walker::start(), and DRAMCtrl::startup().

int System::markWorkItem ( int index )

inline

Called by pseudo_inst to mark the cpus actively executing work items.

Returns the total number of cpus that have executed work item begin or ends.

Definition at line 376 of file system.hh.

References activeCpus, X86ISA::count, ArmISA::i, and MipsISA::index.

Referenced by PseudoInst::workbegin(), and PseudoInst::workend().

MasterID System::maxMasters ( )

inline

Get the number of masters registered in the system.

Definition at line 344 of file system.hh.

References masterIds.

Referenced by Cache::getNextQueueEntry(), BaseCache::incHitCount(), BaseCache::incMissCount(), BaseSetAssoc::insertBlock(), BaseSetAssoc::invalidate(), Cache::recvTimingReq(), Cache::recvTimingResp(), BaseTags::regStats(), AbstractMemory::regStats(), and BaseCache::regStats().

Addr System::memSize ( ) const

Amount of physical memory that exists.

Definition at line 359 of file system.cc.

References physmem, and PhysicalMemory::totalSize().

Referenced by AlphaISA::RemoteGDB::acc(), Linux::procMeminfo(), AlphaBackdoor::startup(), and sysinfoFunc().

int System::numContexts ( )

inline

int System::numRunningContexts ( )

Return number of running (non-halted) thread contexts in system.

These threads could be Active or Suspended.

Definition at line 278 of file system.cc.

References _numContexts, ThreadContext::Halted, ArmISA::i, ArmISA::status, and threadContexts.

Referenced by Pl390::readCpu(), Pl390::readDistributor(), VGic::updateIntState(), Pl390::updateIntState(), and VGic::VGic().

const Params* System::params ( ) const

inline

Definition at line 503 of file system.hh.

References _params.

Referenced by initState(), PseudoInst::readfile(), System(), PseudoInst::workbegin(), and PseudoInst::workend().

void System::printSystems ( )

static

Definition at line 441 of file system.cc.

References ArmISA::i, SimObject::name(), and systemList.

Referenced by printSystems().

ContextID System::registerThreadContext	(	ThreadContext *	tc,
		ContextID	assigned = `InvalidContextID`
	)

Definition at line 231 of file system.cc.

References _numContexts, GDBListener::accept(), activeCpus, fatal, getRemoteGDBPort(), SparcISA::id, InvalidContextID, GDBListener::listen(), remoteGDB, rgdb_wait, and threadContexts.

void System::regStats ( )

overridevirtual

Register statistics for this object.

For every stats dump, the power state residency and other distribution stats should be computed just before the dump to ensure correct stats value being reported for current dump window. It avoids things like having any unreported time spent in a power state to be forwarded to the next dump window which might have rather unpleasant effects (like perturbing the distribution stats).

Reimplemented from ClockedObject.

Definition at line 408 of file system.cc.

References ccprintf(), ArmISA::j, SimObject::name(), numWorkIds, ClockedObject::regStats(), and workItemStats.

void System::replaceThreadContext	(	ThreadContext *	tc,
		ContextID	context_id
	)

Definition at line 326 of file system.cc.

References panic, remoteGDB, and threadContexts.

void System::serialize ( CheckpointOut & cp ) const

overridevirtual

Serialize an object.

Output an object's state into the current checkpoint section.

Parameters

cp	Checkpoint state

Reimplemented from ClockedObject.

Definition at line 383 of file system.cc.

References FullSystem, kernelSymtab, pagePtr, physmem, SymbolTable::serialize(), SERIALIZE_SCALAR, Serializable::serializeSection(), and serializeSymtab().

virtual void System::serializeSymtab ( CheckpointOut & os ) const

inlineprotectedvirtual

If needed, serialize additional symbol table entries for a specific subclass of this system.

Currently this is used by Alpha and MIPS.

Parameters

os	stream to serialize to

Reimplemented in AlphaSystem, and SparcSystem.

Definition at line 575 of file system.hh.

Referenced by serialize().

void System::setMemoryMode ( Enums::MemoryMode mode )

Change the memory mode of the system.

This should only be called by the Python!

Parameters

mode	Mode to change to (atomic/timing/...)

Definition at line 210 of file system.cc.

References Drained, Drainable::drainState(), memoryMode, and ArmISA::mode.

void System::unserialize ( CheckpointIn & cp )

overridevirtual

Unserialize an object.

Read an object's state from the current checkpoint section.

Parameters

cp	Checkpoint state

Reimplemented from ClockedObject.

Definition at line 396 of file system.cc.

References FullSystem, kernelSymtab, pagePtr, physmem, SymbolTable::unserialize(), UNSERIALIZE_SCALAR, Serializable::unserializeSection(), and unserializeSymtab().

virtual void System::unserializeSymtab ( CheckpointIn & cp )

inlineprotectedvirtual

If needed, unserialize additional symbol table entries for a specific subclass of this system.

Parameters

cp	checkpoint to unserialize from
section	relevant section in the checkpoint

Reimplemented in AlphaSystem, and SparcSystem.

Definition at line 584 of file system.hh.

Referenced by unserialize().

void System::workItemBegin	(	uint32_t	tid,
		uint32_t	workid
	)

inline

Definition at line 388 of file system.hh.

References curTick(), lastWorkItemStarted, and MipsISA::p.

Referenced by PseudoInst::workbegin().

void System::workItemEnd	(	uint32_t	tid,
		uint32_t	workid
	)

Definition at line 424 of file system.cc.

References curTick(), DPRINTF, fatal, lastWorkItemStarted, numWorkIds, MipsISA::p, and workItemStats.

Referenced by PseudoInst::workend().

Member Data Documentation

const unsigned int System::_cacheLineSize

protected

Definition at line 311 of file system.hh.

Referenced by cacheLineSize(), and System().

int System::_numContexts

Definition at line 200 of file system.hh.

Referenced by MuxingKvmGic::clearBankedDistRange(), MuxingKvmGic::copyBankedDistRange(), MuxingKvmGic::copyGicState(), MuxingKvmGic::fromKvmToPl390(), numContexts(), numRunningContexts(), registerThreadContext(), and LinuxArmSystem::startup().

Params* System::_params

protected

Definition at line 495 of file system.hh.

Referenced by FreebsdArmSystem::params(), LinuxArmSystem::params(), RiscvSystem::params(), MipsSystem::params(), SparcSystem::params(), AlphaSystem::params(), X86System::params(), ArmSystem::params(), LinuxAlphaSystem::params(), GenericArmSystem::params(), and params().

SystemPort System::_systemPort

private

Definition at line 108 of file system.hh.

Referenced by getMasterPort(), getSystemPort(), and init().

std::vector<bool> System::activeCpus

protected

Definition at line 316 of file system.hh.

Referenced by markWorkItem(), and registerThreadContext().

FutexMap System::futexMap

Definition at line 555 of file system.hh.

Referenced by exitFutexWake(), and futexFunc().

std::vector<GDBListener *> System::gdbListen

Definition at line 488 of file system.hh.

uint64_t System::init_param

Definition at line 220 of file system.hh.

EventQueue System::instEventQueue

Definition at line 540 of file system.hh.

ObjectFile* System::kernel

Object pointer for the kernel code.

Definition at line 230 of file system.hh.

Referenced by ArmSystem::ArmSystem(), FreebsdArmSystem::initState(), LinuxArmSystem::initState(), X86System::initState(), initState(), System(), and ~System().

Addr System::kernelEnd

End of kernel code.

Definition at line 236 of file system.hh.

Referenced by getKernelEnd(), initState(), System(), and AlphaISA::StackTrace::trace().

Addr System::kernelEntry

Entry point in the kernel to start at.

Definition at line 239 of file system.hh.

Referenced by getKernelEntry(), X86System::initState(), ArmSystem::initState(), initState(), and System().

Addr System::kernelStart

Beginning of kernel code.

Definition at line 233 of file system.hh.

Referenced by getKernelStart(), initState(), System(), and AlphaISA::StackTrace::trace().

SymbolTable* System::kernelSymtab

KvmVM* const System::kvmVM

protected

Definition at line 305 of file system.hh.

Referenced by getKvmVM(), and System().

std::map<std::pair<uint32_t,uint32_t>, Tick> System::lastWorkItemStarted

Definition at line 541 of file system.hh.

Referenced by workItemBegin(), and workItemEnd().

Addr System::loadAddrMask

Mask that should be anded for binary/symbol loading.

This allows one two different OS requirements for the same ISA to be handled. Some OSes are compiled for a virtual address and need to be loaded into physical memory that starts at address 0, while other bare metal tools generate images that start at address 0.

Definition at line 247 of file system.hh.

Referenced by AlphaSystem::initState(), FreebsdArmSystem::initState(), LinuxArmSystem::initState(), ArmSystem::initState(), and initState().

Addr System::loadAddrOffset

Offset that should be used for binary/symbol loading.

This further allows more flexibility than the loadAddrMask allows alone in loading kernels and similar. The loadAddrOffset is applied after the loadAddrMask.

Definition at line 254 of file system.hh.

Referenced by FreebsdArmSystem::initState(), LinuxArmSystem::initState(), ArmSystem::initState(), and initState().