VirtIOConsole::TermRecvQueue Class Reference

Virtqueue for data going from the host to the guest. More...

#include <console.hh>

Inheritance diagram for VirtIOConsole::TermRecvQueue:

Public Member Functions
	TermRecvQueue (PortProxy &proxy, uint16_t size, VirtIOConsole &_parent)
virtual	~TermRecvQueue ()
void	onNotify ()
	Notify queue of pending events. More...
void	trySend ()
	Try to send data pending data from the terminal. More...
std::string	name () const
Public Member Functions inherited from VirtQueue
virtual	~VirtQueue ()
void	serialize (CheckpointOut &cp) const override
	Serialize an object. More...
void	unserialize (CheckpointIn &cp) override
	Unserialize an object. More...
void	setAddress (Addr address)
	Set the base address of this queue. More...
Addr	getAddress () const
	Get the guest physical address of this queue. More...
uint16_t	getSize () const
	Get the number of descriptors available in this queue. More...
VirtDescriptor *	getDescriptor (VirtDescriptor::Index index)
	Get a pointer to a specific descriptor in the queue. More...
VirtDescriptor *	consumeDescriptor ()
	Get an incoming descriptor chain from the queue. More...
void	produceDescriptor (VirtDescriptor *desc, uint32_t len)
	Send a descriptor chain to the guest. More...
virtual void	onNotifyDescriptor (VirtDescriptor *desc)
	Notify queue of pending incoming descriptor. More...
void	dump () const
	Dump the contents of a queue. More...
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)

Protected Attributes
VirtIOConsole &	parent

Additional Inherited Members
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 VirtQueue
static const unsigned	ALIGN_BITS = 12
	Page size used by VirtIO. It's hard-coded to 4096 bytes in the spec for historical reasons. More...
static const unsigned	ALIGN_SIZE = 1 << ALIGN_BITS
Static Public Attributes inherited from Serializable
static int	ckptCount = 0
static int	ckptMaxCount = 0
static int	ckptPrevCount = -1
Protected Member Functions inherited from VirtQueue
	VirtQueue (PortProxy &proxy, uint16_t size)
	Instantiate a new virtqueue. More...

Detailed Description

Virtqueue for data going from the host to the guest.

Definition at line 107 of file console.hh.

Constructor & Destructor Documentation

VirtIOConsole::TermRecvQueue::TermRecvQueue ( PortProxy &  proxy, uint16_t  size, VirtIOConsole &  _parent  )

inline

Definition at line 111 of file console.hh.

virtual VirtIOConsole::TermRecvQueue::~TermRecvQueue ( )

inlinevirtual

Definition at line 113 of file console.hh.

Member Function Documentation

std::string VirtIOConsole::TermRecvQueue::name ( ) const

inline

Definition at line 120 of file console.hh.

References SimObject::name(), and parent.

void VirtIOConsole::TermRecvQueue::onNotify ( )

inlinevirtual

Notify queue of pending events.

This method is called by VirtIODeviceBase::onNotify() to notify the device model of pending data in a virtqueue. The default implementation of this method iterates over the available descriptor chains and calls onNotifyDescriptor() for every new incoming chain.

Device models should normally overload one of onNotify() and onNotifyDescriptor().

Reimplemented from VirtQueue.

Definition at line 115 of file console.hh.

References trySend().

void VirtIOConsole::TermRecvQueue::trySend

(

)

Try to send data pending data from the terminal.

Definition at line 76 of file console.cc.

References VirtDescriptor::chainWrite(), VirtQueue::consumeDescriptor(), ArmISA::d, Terminal::dataAvailable(), DPRINTF, Terminal::in(), VirtIODeviceBase::kick(), ArmISA::len, parent, VirtQueue::produceDescriptor(), VirtDescriptor::size(), and VirtIOConsole::term.

Referenced by onNotify().

Member Data Documentation

VirtIOConsole& VirtIOConsole::TermRecvQueue::parent

protected

Definition at line 123 of file console.hh.

Referenced by name(), and trySend().

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

• dev/virtio/console.hh
• dev/virtio/console.cc