Idt Class Reference

#include <idt.h>

List of all members.

Static Public Member Functions
static FIASCO_INIT void	init_table (Idt_init_entry *src)
static FIASCO_INIT void	init ()
	IDT initialization function.
static void	set_entry (unsigned vector, Address entry, bool user)
	IDT patching function.
static Address	idt ()
static void	set (Pseudo_descriptor *desc)
	IDT loading function.
static void	get (Pseudo_descriptor *desc)
static void	set_timer_vector_run (void)
	Set IDT vector to the normal timer interrupt handler.
static void	set_timer_vector_stop (void)
	Set IDT vector to a dummy vector if Config::getchar_does_hlt is true.
Static Public Attributes
static const unsigned	_idt_max = 0x40
Static Private Member Functions
static void	set_writable (bool writable)
	IDT write-protect/write-unprotect function.
Static Private Attributes
static const Address	_idt = Mem_layout::Idt
Friends
class	Jdb_kern_info_bench

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Member Function Documentation

void Idt::get (  Pseudo_descriptor *  desc  )  [inline, static]

Address Idt::idt (   )  [inline, static]

FIASCO_INIT void Idt::init (   )  [static]

IDT initialization function. Sets up initial interrupt vectors. It also write-protects the IDT because of the infamous Pentium F00F bug.

FIASCO_INIT void Idt::init_table (  Idt_init_entry *  src  )  [static]

void Idt::set (  Pseudo_descriptor *  desc  )  [inline, static]

IDT loading function. Loads IDT base and limit into the CPU. Parameters: desc  IDT descriptor (base address, limit)

void Idt::set_entry (  unsigned  vector, Address  entry, bool  user )  [static]

IDT patching function. Allows to change interrupt gate vectors at runtime. It makes the IDT writable for the duration of this operation. Parameters: vector  interrupt vector to be modified func  new handler function for this interrupt vector user  true if user mode can use this vector, false otherwise

void Idt::set_timer_vector_run (  void   )  [static]

Set IDT vector to the normal timer interrupt handler.

void Idt::set_timer_vector_stop (  void   )  [static]

Set IDT vector to a dummy vector if Config::getchar_does_hlt is true.

void Idt::set_writable (  bool  writable  )  [static, private]

IDT write-protect/write-unprotect function. Parameters: writable  true if IDT should be made writable, false otherwise

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Friends And Related Function Documentation

friend class Jdb_kern_info_bench [friend]

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Member Data Documentation

const Address Idt::_idt = Mem_layout::Idt [static, private]

const unsigned Idt::_idt_max = 0x40 [static]

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

• idt.h
• idt.cc

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