#include <InterruptManager.h>

Inheritance diagram for X86InterruptManager:

Collaboration diagram for X86InterruptManager:

Classes
struct	GateDescriptor

Public Member Functions
virtual bool	registerInterruptHandler (size_t nInterruptNumber, InterruptHandler *pHandler)

virtual bool	registerInterruptHandlerDebugger (size_t nInterruptNumber, InterruptHandler *pHandler)

virtual size_t	getBreakpointInterruptNumber () PURE

virtual size_t	getDebugInterruptNumber () PURE

virtual bool	registerSyscallHandler (Service_t Service, SyscallHandler *pHandler)

virtual uintptr_t	syscall (Service_t service, uintptr_t function, uintptr_t p1=0, uintptr_t p2=0, uintptr_t p3=0, uintptr_t p4=0, uintptr_t p5=0)

Static Public Member Functions
static X86InterruptManager &	instance ()

static void	initialiseProcessor () INITIALISATION_ONLY

Static Public Member Functions inherited from InterruptManager
static InterruptManager &	instance ()

Static Public Member Functions inherited from SyscallManager
static EXPORTED_PUBLIC SyscallManager &	instance ()

Private Member Functions
void	setInterruptGate (size_t nInterruptNumber, uintptr_t interruptHandler, bool bUserspace) INITIALISATION_ONLY

void	setTaskGate (size_t nInterruptNumber, uint16_t tssSeg) INITIALISATION_ONLY

	X86InterruptManager () INITIALISATION_ONLY

	X86InterruptManager (const X86InterruptManager &)

X86InterruptManager &	operator= (const X86InterruptManager &)

virtual	~X86InterruptManager ()

Static Private Member Functions
static void	interrupt (InterruptState &interruptState)

Private Attributes
struct X86InterruptManager::GateDescriptor	PACKED

GateDescriptor	m_IDT [256]

InterruptHandler *	m_pHandler [256]

InterruptHandler *	m_pDbgHandler [256]

SyscallHandler *	m_pSyscallHandler [serviceEnd]

Spinlock	m_Lock

Static Private Attributes
static X86InterruptManager	m_Instance

Additional Inherited Members
Protected Member Functions inherited from InterruptManager
	InterruptManager ()

virtual	~InterruptManager ()

Protected Member Functions inherited from SyscallManager
	SyscallManager ()

virtual	~SyscallManager ()

Detailed Description

The interrupt/syscall manager on x86 processors

Definition at line 33 of file kernel/core/processor/x86/InterruptManager.h.

Constructor & Destructor Documentation

X86InterruptManager::X86InterruptManager ( )

private

The constructor

Definition at line 385 of file x86/InterruptManager.cc.

References m_pDbgHandler, m_pHandler, m_pSyscallHandler, setInterruptGate(), and setTaskGate().

Referenced by instance().

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X86InterruptManager::X86InterruptManager ( const X86InterruptManager & )

private

Copy constructor

Note: NOT implemented

X86InterruptManager::~X86InterruptManager ( )

privatevirtual

The destructor

Definition at line 412 of file x86/InterruptManager.cc.

Referenced by instance().

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Member Function Documentation

size_t X86InterruptManager::getBreakpointInterruptNumber ( )

virtual

Get the interrupt number of the breakpoint exception

Returns: the interrupt number of the breakpoint exception

Implements InterruptManager.

Definition at line 121 of file x86/InterruptManager.cc.

Referenced by instance().

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size_t X86InterruptManager::getDebugInterruptNumber ( )

virtual

Get the interrupt number of the debug exception

Returns: the interrupt number of the debug exception

Implements InterruptManager.

Definition at line 125 of file x86/InterruptManager.cc.

Referenced by instance().

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void X86InterruptManager::initialiseProcessor ( )

static

Initialises this processor's IDTR

Note: This should only be called from Processor::initialise1() and Multiprocessor::applicationProcessorStartup()

Definition at line 354 of file x86/InterruptManager.cc.

References PACKED.

Referenced by instance().

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static X86InterruptManager& X86InterruptManager::instance ( )

inlinestatic

Get the X86InterruptManager class instance

Returns: instance of the X86InterruptManager class

Definition at line 38 of file kernel/core/processor/x86/InterruptManager.h.

References getBreakpointInterruptNumber(), getDebugInterruptNumber(), INITIALISATION_ONLY, initialiseProcessor(), interrupt(), m_Instance, operator=(), PURE, registerInterruptHandler(), registerInterruptHandlerDebugger(), registerSyscallHandler(), setInterruptGate(), setTaskGate(), syscall(), X86InterruptManager(), and ~X86InterruptManager().

void X86InterruptManager::interrupt ( InterruptState & interruptState )

staticprivate

Called when an interrupt was triggered

Parameters

[in] interruptState reference to the usermode/kernel state before the interrupt

Definition at line 148 of file x86/InterruptManager.cc.

References Thread::Exit, Thread::getParent(), Processor::information(), Debugger::instance(), InterruptHandler::interrupt(), LIKELY, NOTICE, panic(), Debugger::start(), SyscallHandler::syscall(), Subsystem::threadException(), and UNLIKELY.

Referenced by instance().

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X86InterruptManager& X86InterruptManager::operator= ( const X86InterruptManager & )

private

Assignment operator

Note: NOT implemented

Referenced by instance().

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bool X86InterruptManager::registerInterruptHandler	(	size_t	nInterruptNumber,
		InterruptHandler *	pHandler
	)

virtual

Register an interrupt handler

Parameters

[in]	nInterruptNumber	the interrupt's number
[in]	pHandler	the interrupt handler

Returns: true, if successfully registered, false otherwise

Implements InterruptManager.

Definition at line 84 of file x86/InterruptManager.cc.

References UNLIKELY.

Referenced by instance().

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bool X86InterruptManager::registerInterruptHandlerDebugger	(	size_t	nInterruptNumber,
		InterruptHandler *	pHandler
	)

virtual

Register an interrupt handler (for the kernel debugger)

Parameters

[in]	nInterruptNumber	the interrupt's number
[in]	pHandler	the interrupt handler

Returns: true, if successfully registered, false otherwise

Implements InterruptManager.

Definition at line 104 of file x86/InterruptManager.cc.

References UNLIKELY.

Referenced by instance().

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bool X86InterruptManager::registerSyscallHandler	(	Service_t	Service,
		SyscallHandler *	pHandler
	)

virtual

Register a syscall handler

Parameters

[in]	Service	the service number you want to register
[in]	pHandler	the interrupt handler

Returns: true, if successfully registered, false otherwise

Implements SyscallManager.

Definition at line 132 of file x86/InterruptManager.cc.

References UNLIKELY.

Referenced by instance().

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void X86InterruptManager::setInterruptGate	(	size_t	nInterruptNumber,
		uintptr_t	interruptHandler,
		bool	bUserspace
	)

private

Sets up an interrupt gate

Parameters

[in]	nInterruptNumber	the interrupt number
[in]	interruptHandler	address of the assembler interrupt handler stub
[in]	bUserspace	is the userspace allowed to call this callgate?

Definition at line 366 of file x86/InterruptManager.cc.

Referenced by instance(), and X86InterruptManager().

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void X86InterruptManager::setTaskGate	(	size_t	nInterruptNumber,
		uint16_t	tssSeg
	)

private

Sets up a task gate

Parameters

[in]	nInterruptNumber	the interrupt number
[in]	tssSeg	the segment in the GDT for the TSS

Definition at line 376 of file x86/InterruptManager.cc.

Referenced by instance(), and X86InterruptManager().

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uintptr_t X86InterruptManager::syscall	(	Service_t	service,
		uintptr_t	function,
		uintptr_t	p1 = `0`,
		uintptr_t	p2 = `0`,
		uintptr_t	p3 = `0`,
		uintptr_t	p4 = `0`,
		uintptr_t	p5 = `0`
	)