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Kernel: Acquire ISA interrupt overrides from Interrupt Management

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Also, InterruptDisabler were added to prevent critical function from
being interrupted. In addition, the interrupt numbers are abstracted
from IDT offsets, thus, allowing to create a better routing scheme
when using IOAPICs for interrupt redirection.
This commit is contained in:
Liav A 2020-03-06 03:19:40 +02:00 • committed by Andreas Kling
parent d9d792d37f
commit 30fc78bfaf
5 changed files with 54 additions and 21 deletions
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8
Kernel/Interrupts/GenericInterruptHandler.cpp
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@ -39,20 +39,20 @@ GenericInterruptHandler& GenericInterruptHandler::from(u8 interrupt_number)
GenericInterruptHandler::GenericInterruptHandler(u8 interrupt_number)
: m_interrupt_number(interrupt_number)
{
register_generic_interrupt_handler(interrupt_number, *this);
register_generic_interrupt_handler(InterruptManagement::acquire_mapped_interrupt_number(m_interrupt_number), *this);
}
GenericInterruptHandler::~GenericInterruptHandler()
{
unregister_generic_interrupt_handler(m_interrupt_number, *this);
unregister_generic_interrupt_handler(InterruptManagement::acquire_mapped_interrupt_number(m_interrupt_number), *this);
}
void GenericInterruptHandler::change_interrupt_number(u8 number)
{
ASSERT_INTERRUPTS_ENABLED();
unregister_generic_interrupt_handler(interrupt_number(), *this);
unregister_generic_interrupt_handler(InterruptManagement::acquire_mapped_interrupt_number(interrupt_number()), *this);
m_interrupt_number = number;
register_generic_interrupt_handler(interrupt_number(), *this);
register_generic_interrupt_handler(InterruptManagement::acquire_mapped_interrupt_number(interrupt_number()), *this);
}
void GenericInterruptHandler::increment_invoking_counter()
{