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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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6
Kernel/Interrupts/InterruptManagement.h
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@ -47,11 +47,16 @@ public:
static InterruptManagement& the();
static void initialize();
static bool initialized();
static u8 acquire_mapped_interrupt_number(u8);
virtual void switch_to_pic_mode();
virtual void switch_to_ioapic_mode();
RefPtr<IRQController> get_responsible_irq_controller(u8 interrupt_vector);
Vector<RefPtr<ISAInterruptOverrideMetadata>> isa_overrides();
u8 get_mapped_vector_number(u8 original_vector);
void enumerate_interrupt_handlers(Function<void(GenericInterruptHandler&)>);
IRQController& get_interrupt_controller(int index);
@ -60,6 +65,7 @@ private:
PhysicalAddress search_for_madt();
void locate_apic_data();
void locate_pci_interrupt_overrides();
bool m_smp_enabled { false };
FixedArray<RefPtr<IRQController>> m_interrupt_controllers { 1 };
Vector<RefPtr<ISAInterruptOverrideMetadata>> m_isa_interrupt_overrides;
Vector<RefPtr<PCIInterruptOverrideMetadata>> m_pci_interrupt_overrides;