#include <pci.hh>

Inheritance diagram for PciVirtIO:

Public Types
typedef PciVirtIOParams	Params

Public Types inherited from DmaDevice
typedef DmaDeviceParams	Params

Public Types inherited from PioDevice
typedef PioDeviceParams	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
	PciVirtIO (const Params *params)

virtual	~PciVirtIO ()

Tick	read (PacketPtr pkt)
	Pure virtual function that the device must implement. More...

Tick	write (PacketPtr pkt)
	Pure virtual function that the device must implement. More...

void	kick ()

Public Member Functions inherited from PciDevice
virtual Tick	writeConfig (PacketPtr pkt)
	Write to the PCI config space data that is stored locally. More...

virtual Tick	readConfig (PacketPtr pkt)
	Read from the PCI config space data that is stored locally. More...

Addr	pciToDma (Addr pci_addr) const

void	intrPost ()

void	intrClear ()

uint8_t	interruptLine () const

AddrRangeList	getAddrRanges () const override
	Determine the address ranges that this device responds to. More...

	PciDevice (const PciDeviceParams *params)
	Constructor for PCI Dev. More...

void	serialize (CheckpointOut &cp) const override
	Serialize this object to the given output stream. More...

void	unserialize (CheckpointIn &cp) override
	Reconstruct the state of this object from a checkpoint. More...

const PciBusAddr &	busAddr () const

Public Member Functions inherited from DmaDevice
	DmaDevice (const Params *p)

virtual	~DmaDevice ()

void	dmaWrite (Addr addr, int size, Event event, uint8_t data, Tick delay=0)

void	dmaRead (Addr addr, int size, Event event, uint8_t data, Tick delay=0)

bool	dmaPending () const

void	init () override
	init() is called after all C++ SimObjects have been created and all ports are connected. More...

unsigned int	cacheBlockSize () const

BaseMasterPort &	getMasterPort (const std::string &if_name, PortID idx=InvalidPortID) override
	Get a master port with a given name and index. More...

Public Member Functions inherited from PioDevice
	PioDevice (const Params *p)

virtual	~PioDevice ()

const Params *	params () const

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 MemObject
const Params *	params () const

	MemObject (const Params *params)

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

const Params *	params () const

void	serialize (CheckpointOut &cp) const override
	Serialize an object. More...

void	unserialize (CheckpointIn &cp) override
	Unserialize an object. More...

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)

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

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	initState ()
	initState() is called on each SimObject when not 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...

void	serialize (CheckpointOut &cp) const override
	Serialize an object. More...

void	unserialize (CheckpointIn &cp) override
	Unserialize an object. 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

Protected Attributes
VirtIODeviceBase::QueueID	queueNotify

bool	interruptDeliveryPending

VirtIODeviceBase &	vio

MakeCallback< PciVirtIO,&PciVirtIO::kick >	callbackKick

Protected Attributes inherited from PciDevice
const PciBusAddr	_busAddr

PCIConfig	config
	The current config space. More...

std::vector< MSIXTable >	msix_table
	MSIX Table and PBA Structures. More...

std::vector< MSIXPbaEntry >	msix_pba

uint32_t	BARSize [6]
	The size of the BARs. More...

Addr	BARAddrs [6]
	The current address mapping of the BARs. More...

bool	legacyIO [6]
	Whether the BARs are really hardwired legacy IO locations. More...

PciHost::DeviceInterface	hostInterface

Tick	pioDelay

Tick	configDelay

const int	PMCAP_BASE
	The capability list structures and base addresses. More...

const int	PMCAP_ID_OFFSET

const int	PMCAP_PC_OFFSET

const int	PMCAP_PMCS_OFFSET

PMCAP	pmcap

const int	MSICAP_BASE

MSICAP	msicap

const int	MSIXCAP_BASE

const int	MSIXCAP_ID_OFFSET

const int	MSIXCAP_MXC_OFFSET

const int	MSIXCAP_MTAB_OFFSET

const int	MSIXCAP_MPBA_OFFSET

int	MSIX_TABLE_OFFSET

int	MSIX_TABLE_END

int	MSIX_PBA_OFFSET

int	MSIX_PBA_END

MSIXCAP	msixcap

const int	PXCAP_BASE

PXCAP	pxcap

Protected Attributes inherited from DmaDevice
DmaPort	dmaPort

Protected Attributes inherited from PioDevice
System *	sys

PioPort	pioPort
	The pioPort that handles the requests for us and provides us requests that it sees. More...

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...

Static Protected Attributes
static const Addr	BAR0_SIZE_BASE = OFF_VIO_DEVICE


static const Addr	OFF_DEVICE_FEATURES = 0x00
	Offsets into VirtIO header (BAR0 relative). More...

static const Addr	OFF_GUEST_FEATURES = 0x04

static const Addr	OFF_QUEUE_ADDRESS = 0x08

static const Addr	OFF_QUEUE_SIZE = 0x0C

static const Addr	OFF_QUEUE_SELECT = 0x0E

static const Addr	OFF_QUEUE_NOTIFY = 0x10

static const Addr	OFF_DEVICE_STATUS = 0x12

static const Addr	OFF_ISR_STATUS = 0x13

static const Addr	OFF_VIO_DEVICE = 0x14

Additional Inherited Members
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)

Static Public Attributes inherited from Serializable
static int	ckptCount = 0

static int	ckptMaxCount = 0

static int	ckptPrevCount = -1

Protected Member Functions inherited from PciDevice
bool	isBAR (Addr addr, int bar) const
	Does the given address lie within the space mapped by the given base address register? More...

int	getBAR (Addr addr)
	Which base address register (if any) maps the given address? More...

bool	getBAR (Addr addr, int &bar, Addr &offs)
	Which base address register (if any) maps the given address? More...

Protected Member Functions inherited from Drainable
	Drainable ()

virtual	~Drainable ()

virtual void	drainResume ()
	Resume execution after a successful drain. More...

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...

Detailed Description

Definition at line 49 of file pci.hh.

Member Typedef Documentation

typedef PciVirtIOParams PciVirtIO::Params

Definition at line 52 of file pci.hh.

Constructor & Destructor Documentation

PciVirtIO::PciVirtIO ( const Params * params )

Definition at line 47 of file pci.cc.

References alignToPowerOfTwo(), BAR0_SIZE_BASE, PciDevice::BARSize, callbackKick, PciDevice::config, VirtIODeviceBase::configSize, VirtIODeviceBase::deviceId, htole(), VirtIODeviceBase::registerKickCallback(), PCIConfig::subsystemID, and vio.

PciVirtIO::~PciVirtIO ( )

virtual

Definition at line 63 of file pci.cc.

Member Function Documentation

void PciVirtIO::kick ( )

Definition at line 221 of file pci.cc.

References DPRINTF, interruptDeliveryPending, and PciDevice::intrPost().

Tick PciVirtIO::read ( PacketPtr pkt )

virtual

Pure virtual function that the device must implement.

Called when a read command is recieved by the port.

Parameters

pkt	Packet describing this request

Returns: number of ticks it took to complete

Implements PioDevice.

Definition at line 68 of file pci.cc.

References VirtIODeviceBase::deviceFeatures, DPRINTF, Packet::getAddr(), PciDevice::getBAR(), VirtIODeviceBase::getDeviceStatus(), VirtIODeviceBase::getGuestFeatures(), VirtIODeviceBase::getQueueAddress(), VirtIODeviceBase::getQueueSelect(), VirtIODeviceBase::getQueueSize(), Packet::getSize(), interruptDeliveryPending, PciDevice::intrClear(), M5_VAR_USED, Packet::makeResponse(), OFF_DEVICE_FEATURES, OFF_DEVICE_STATUS, OFF_GUEST_FEATURES, OFF_ISR_STATUS, OFF_QUEUE_ADDRESS, OFF_QUEUE_NOTIFY, OFF_QUEUE_SELECT, OFF_QUEUE_SIZE, OFF_VIO_DEVICE, ArmISA::offset, panic, queueNotify, VirtIODeviceBase::readConfig(), Packet::set(), X86ISA::size(), and vio.

Tick PciVirtIO::write ( PacketPtr pkt )

virtual

Pure virtual function that the device must implement.

Called when a write command is recieved by the port.

Parameters

pkt	Packet describing this request

Returns: number of ticks it took to complete

Implements PioDevice.

Definition at line 149 of file pci.cc.

References DPRINTF, Packet::get(), Packet::getAddr(), PciDevice::getBAR(), Packet::getSize(), M5_VAR_USED, Packet::makeResponse(), OFF_DEVICE_FEATURES, OFF_DEVICE_STATUS, OFF_GUEST_FEATURES, OFF_ISR_STATUS, OFF_QUEUE_ADDRESS, OFF_QUEUE_NOTIFY, OFF_QUEUE_SELECT, OFF_QUEUE_SIZE, OFF_VIO_DEVICE, ArmISA::offset, VirtIODeviceBase::onNotify(), panic, queueNotify, VirtIODeviceBase::setDeviceStatus(), VirtIODeviceBase::setGuestFeatures(), VirtIODeviceBase::setQueueAddress(), VirtIODeviceBase::setQueueSelect(), X86ISA::size(), ArmISA::status, vio, warn, and VirtIODeviceBase::writeConfig().

Member Data Documentation

const Addr PciVirtIO::BAR0_SIZE_BASE = OFF_VIO_DEVICE

staticprotected

Definition at line 77 of file pci.hh.

Referenced by PciVirtIO().

MakeCallback<PciVirtIO, &PciVirtIO::kick> PciVirtIO::callbackKick

protected

Definition at line 86 of file pci.hh.

Referenced by PciVirtIO().

bool PciVirtIO::interruptDeliveryPending

protected

Definition at line 82 of file pci.hh.

Referenced by kick(), and read().

const Addr PciVirtIO::OFF_DEVICE_FEATURES = 0x00

staticprotected

Offsets into VirtIO header (BAR0 relative).

Definition at line 65 of file pci.hh.

Referenced by read(), and write().

const Addr PciVirtIO::OFF_DEVICE_STATUS = 0x12

staticprotected

Definition at line 71 of file pci.hh.

Referenced by read(), and write().

const Addr PciVirtIO::OFF_GUEST_FEATURES = 0x04

staticprotected

Definition at line 66 of file pci.hh.

Referenced by read(), and write().

const Addr PciVirtIO::OFF_ISR_STATUS = 0x13

staticprotected

Definition at line 72 of file pci.hh.

Referenced by read(), and write().

const Addr PciVirtIO::OFF_QUEUE_ADDRESS = 0x08

staticprotected

Definition at line 67 of file pci.hh.

Referenced by read(), and write().

const Addr PciVirtIO::OFF_QUEUE_NOTIFY = 0x10

staticprotected

Definition at line 70 of file pci.hh.

Referenced by read(), and write().

const Addr PciVirtIO::OFF_QUEUE_SELECT = 0x0E

staticprotected

Definition at line 69 of file pci.hh.

Referenced by read(), and write().

const Addr PciVirtIO::OFF_QUEUE_SIZE = 0x0C

staticprotected

Definition at line 68 of file pci.hh.

Referenced by read(), and write().

const Addr PciVirtIO::OFF_VIO_DEVICE = 0x14

staticprotected

Definition at line 73 of file pci.hh.

Referenced by read(), and write().

VirtIODeviceBase::QueueID PciVirtIO::queueNotify

protected

Definition at line 80 of file pci.hh.

Referenced by read(), and write().

VirtIODeviceBase& PciVirtIO::vio

protected

Definition at line 84 of file pci.hh.

Referenced by PciVirtIO(), read(), and write().

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

dev/virtio/pci.hh
dev/virtio/pci.cc

Public Types

Public Member Functions

Protected Attributes

Static Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation