Defines a InterruptManager and InterruptHandler for managing hardware and software interrupts. More...

#include <cstdint>
#include <libcommon/port.h>
#include <libcommon/inputStream.h>
#include <libcommon/outputStream.h>
#include <libcommon/map.h>
#include <system/gdt.h>
#include <system/cpu.h>
#include <hardwarecommunication/apic.h>

Classes
class	MaxOS::hardwarecommunication::InterruptHandler
	Handles a certain interrupt number. More...

class	MaxOS::hardwarecommunication::ExceptionHandler
	Base class for handing CPU expection interrupts. More...

class	MaxOS::hardwarecommunication::DivideByZeroHandler
	Handles an attempt to divide by 0. More...

class	MaxOS::hardwarecommunication::InvaildOpCodeHandler
	Handles calling an invalid assembly instruction for the configuration running on this architecture. More...

class	MaxOS::hardwarecommunication::GeneralProtectionHandler
	Handles a general protection exception. More...

class	MaxOS::hardwarecommunication::PageFaultHandler
	Handles a page fault exception. More...

class	MaxOS::hardwarecommunication::CPUStopHandler
	Handles a interrupt that tells a CPU core to stop running. More...

struct	MaxOS::hardwarecommunication::IDTR
	A struct that holds the Interrupt Descriptor Table Register (IDTR) More...

struct	MaxOS::hardwarecommunication::InterruptDescriptor
	An entry in the Interrupt Descriptor Table (IDT) More...

class	MaxOS::hardwarecommunication::ExceptionHandlers
	Holds and instantiates the CPU exception handlers. More...

class	MaxOS::hardwarecommunication::InterruptManager
	Handles all interrupts and passes them to the correct handler. More...

Typedefs
typedef struct PACKED MaxOS::hardwarecommunication::IDTR	MaxOS::hardwarecommunication::idtr_t
	Alias for IDTR struct.

typedef struct PACKED MaxOS::hardwarecommunication::InterruptDescriptor	MaxOS::hardwarecommunication::interrupt_descriptor_t
	Alias for InterruptDescriptor struct.

Enumerations
enum class	MaxOS::hardwarecommunication::InterruptPrivilegeLevel { KERNEL_ONLY , RING_1 , RING_2 , USERSPACE }
	Represents the CPU ring level that a interrupt is handler is executed in. More...

Variables
constexpr uint16_t	MaxOS::hardwarecommunication::HARDWARE_INTERRUPT_OFFSET = 0x20
	The offset in the IDT where interrupts from hardware start.

constexpr uint16_t	MaxOS::hardwarecommunication::MAX_INTERRUPT_HANDLERS = 256
	The maximum number of interrupt handlers.

Detailed Description

Defines a InterruptManager and InterruptHandler for managing hardware and software interrupts.

Date: 10th July 2022

Author: Max Tyson

Definition in file interrupts.h.

Enumeration Type Documentation

◆ InterruptPrivilegeLevel

enum class MaxOS::hardwarecommunication::InterruptPrivilegeLevel

strong

Represents the CPU ring level that a interrupt is handler is executed in.

Definition at line 32 of file interrupts.h.

    {
        KERNEL_ONLY,
        RING_1,
        RING_2,
        USERSPACE
    };

Variable Documentation

◆ HARDWARE_INTERRUPT_OFFSET

constexpr uint16_t MaxOS::hardwarecommunication::HARDWARE_INTERRUPT_OFFSET = 0x20

constexpr

The offset in the IDT where interrupts from hardware start.

Definition at line 169 of file interrupts.h.

Referenced by MaxOS::hardwarecommunication::InterruptManager::handle_interrupt_request(), and MaxOS::hardwarecommunication::InterruptManager::InterruptManager().

◆ MAX_INTERRUPT_HANDLERS

constexpr uint16_t MaxOS::hardwarecommunication::MAX_INTERRUPT_HANDLERS = 256

constexpr

The maximum number of interrupt handlers.

Definition at line 170 of file interrupts.h.

Classes

Typedefs