QemuInstance Class Reference

This class encapsulates a libqemu-cxx qemu::LibQemu instance. It handles QEMU parameters and instance initialization. More...

#include <qemu-instance.h>

Inheritance diagram for QemuInstance:

Collaboration diagram for QemuInstance:

Public Types
enum	TcgMode { TCG_UNSPECIFIED , TCG_SINGLE , TCG_COROUTINE , TCG_MULTI }
using	Target = qemu::Target
using	LibLoader = qemu::LibraryLoaderIface

Public Member Functions
void	add_dev (QemuDeviceBaseIF *d)
void	del_dev (QemuDeviceBaseIF *d)
bool	can_run ()
TcgMode	StringToTcgMode (std::string s)
	QemuInstance (const sc_core::sc_module_name &n, sc_core::sc_object *o, std::string arch)
	QemuInstance (const sc_core::sc_module_name &n, sc_core::sc_object *o, Target t)
	QemuInstance (const sc_core::sc_module_name &n, LibLoader &loader, Target t)
	QemuInstance (const QemuInstance &)=delete
	QemuInstance (QemuInstance &&)=delete
bool	operator== (const QemuInstance &b) const
bool	operator!= (const QemuInstance &b) const
void	add_arg (const char *arg)
	Add a command line argument to the qemu instance.
void	set_display_arg (const std::string &arg)
	Add a the display command line argument to the qemu instance.
void	set_vnc_args (const std::string &vnc_options)
	Add the VNC command line argument to the qemu instance.
TcgMode	get_tcg_mode ()
	Get the TCG mode for this instance.
bool	is_kvm_enabled () const
bool	is_hvf_enabled () const
bool	is_tcg_enabled () const
std::shared_ptr< gs::tlm_quantumkeeper_extended >	create_quantum_keeper ()
	Get the TCG mode for this instance.
void	init ()
	Initialize the QEMU instance.
bool	is_inited () const
	Returns true if the instance is initialized.
qemu::LibQemu &	get ()
	Returns the underlying qemu::LibQemu instance.
QemuInstanceDmiManager &	get_dmi_manager ()
	Returns the locked QemuInstanceDmiManager instance.
int	number_devices ()

Public Attributes
TargetSignalSocket< bool >	reset
std::mutex	g_signaled_lock
std::condition_variable	g_signaled_cond
bool	g_signaled = false
std::recursive_mutex	g_rec_qemu_io_lock

Protected Member Functions
void	push_default_args ()
void	push_icount_mode_args ()
void	push_tcg_mode_args ()
void	push_accelerator_args ()
LibLoader &	get_loader (sc_core::sc_object *o)
Target	strtotarget (std::string s)

Protected Attributes
qemu::LibQemu	m_inst
QemuInstanceDmiManager	m_dmi_mgr
cci::cci_param< std::string >	p_tcg_mode
cci::cci_param< std::string >	p_sync_policy
TcgMode	m_tcg_mode
cci::cci_param< bool >	p_icount
cci::cci_param< int >	p_icount_mips
cci::cci_param< std::string >	p_args
std::string	m_display_argument
cci::cci_param< std::string >	p_accel

Detailed Description

This class encapsulates a libqemu-cxx qemu::LibQemu instance. It handles QEMU parameters and instance initialization.

Member Function Documentation

add_arg()

void QemuInstance::add_arg ( const char *  arg )

inline

Add a command line argument to the qemu instance.

This method may only be called before the instance is initialized.

create_quantum_keeper()

std::shared_ptr< gs::tlm_quantumkeeper_extended > QemuInstance::create_quantum_keeper ( )

inline

Get the TCG mode for this instance.

This method is called by CPU instances determin if to use coroutines or not.

get()

qemu::LibQemu & QemuInstance::get ( )

inline

Returns the underlying qemu::LibQemu instance.

Returns the underlying qemu::LibQemu instance. If the instance hasn't been initialized, init is called just before returning the instance.

get_dmi_manager()

QemuInstanceDmiManager & QemuInstance::get_dmi_manager ( )

inline

Returns the locked QemuInstanceDmiManager instance.

Note: we rely on RVO here so no copy happen on return (this is enforced by the fact that the LockedQemuInstanceDmiManager copy constructor is deleted).

get_tcg_mode()

TcgMode QemuInstance::get_tcg_mode ( )

inline

Get the TCG mode for this instance.

This method is called by CPU instances determin if to use coroutines or not.

init()

void QemuInstance::init ( )

inline

Initialize the QEMU instance.

Initialize the QEMU instance with the set TCG and icount mode. If the TCG mode hasn't been set, it defaults to TCG_SINGLE. If icount mode hasn't been set, it defaults to ICOUNT_OFF.

The instance should not already be initialized when calling this method.

set_display_arg()

void QemuInstance::set_display_arg ( const std::string &  arg )

inline

Add a the display command line argument to the qemu instance.

This method may only be called before the instance is initialized.

set_vnc_args()

void QemuInstance::set_vnc_args ( const std::string &  vnc_options )

inline

Add the VNC command line argument to the qemu instance.

This method may only be called before the instance is initialized.

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

• qemu-components/common/include/qemu-instance.h