MaxOS::hardwarecommunication::GeneralProtectionHandler Class Reference

Handles a general protection exception. More...

#include <interrupts.h>

Inheritance diagram for MaxOS::hardwarecommunication::GeneralProtectionHandler:

Public Member Functions
	GeneralProtectionHandler ()
	Create a new GeneralProtectionHandler.
string	get_message (system::cpu_status_t *status) final
	Get an human readable error message explaining this exception.
Public Member Functions inherited from MaxOS::hardwarecommunication::ExceptionHandler
	ExceptionHandler (uint8_t interrupt_number)
	Create a new base exception handler for an interrupt.
	~ExceptionHandler ()
virtual system::cpu_status_t *	handle_interrupt (system::cpu_status_t *status)
	Handle the interrupt relating to this exception.
Public Member Functions inherited from MaxOS::hardwarecommunication::InterruptHandler
virtual void	handle_interrupt ()
	Handles an interrupt.

Additional Inherited Members
Protected Member Functions inherited from MaxOS::hardwarecommunication::InterruptHandler
	InterruptHandler (uint8_t interrupt_number, int64_t redirect=-1, uint64_t redirect_index=0)
	Creates a new interrupt handler and registers it with the interrupt manager.
virtual	~InterruptHandler ()
	Destroys the interrupt handler and unregisters it from the interrupt manager.
Protected Attributes inherited from MaxOS::hardwarecommunication::InterruptHandler
uint8_t	m_interrupt_number
	The interrupt number this handler handles.

Detailed Description

Handles a general protection exception.

Definition at line 102 of file interrupts.h.

Constructor & Destructor Documentation

GeneralProtectionHandler()

MaxOS::hardwarecommunication::GeneralProtectionHandler::GeneralProtectionHandler ( )

inline

Create a new GeneralProtectionHandler.

Definition at line 106 of file interrupts.h.

: ExceptionHandler(0x0D) { }

Member Function Documentation

get_message()

string GeneralProtectionHandler::get_message ( system::cpu_status_t *  status )

finalvirtual

Get an human readable error message explaining this exception.

Parameters

status

The CPU state at time of exception

Returns

The error message

Reimplemented from MaxOS::hardwarecommunication::ExceptionHandler.

Definition at line 161 of file interrupts.cpp.

                                                                 {
 
    // Get the core that the fault happened on
    auto core = CPU::executing_core();
    uint64_t core_id = core ? core->id : 0;
 
    uint64_t error_code = status->error_code;
    return StringBuilder() << "General Protection Fault: (0x" << status->rip << "): " << (error_code & 0x1 ? "Protection-Exception" : "Not a Protection Exception") << " cid: " << core_id << "\n";
 
}

References MaxOS::system::CPU::executing_core().

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

• /home/runner/work/MaxOS/MaxOS/kernel/include/hardwarecommunication/interrupts.h
• /home/runner/work/MaxOS/MaxOS/kernel/src/hardwarecommunication/interrupts.cpp