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Kernel: fix some of i368 IDT. This was really broken

This commit is contained in:
Bananymous 2023-02-02 15:52:06 +02:00
parent 117d1de038
commit c85b97abee
1 changed files with 8 additions and 17 deletions
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25
kernel/arch/i386/IDT.cpp
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@ -74,7 +74,7 @@ namespace IDT
static IDTR s_idtr;
static GateDescriptor* s_idt = nullptr;
static void(**s_irq_handlers)();
static void(*s_irq_handlers[16])() { nullptr };
INTERRUPT_HANDLER____(0x00, "Division Error")
INTERRUPT_HANDLER____(0x01, "Debug")
@ -111,22 +111,19 @@ namespace IDT
extern "C" void handle_irq()
{
uint8_t irq = 0;
for (uint32_t i = 0; i <= 0xFF; i++)
uint8_t irq;
for (uint32_t i = 0; i < 16; i++)
{
if (InterruptController::get().is_in_service(i))
{
irq = i;
break;
goto found;
}
}
if (irq == 0)
{
dprintln("Spurious irq");
return;
}
dprintln("Spurious irq");
return;
found:
if (s_irq_handlers[irq])
s_irq_handlers[irq]();
else
@ -171,7 +168,7 @@ namespace IDT
void register_irq_handler(uint8_t irq, void(*f)())
{
s_irq_handlers[IRQ_VECTOR_BASE + irq] = f;
s_irq_handlers[irq] = f;
register_interrupt_handler(IRQ_VECTOR_BASE + irq, handle_irq_common);
flush_idt();
}
@ -183,15 +180,9 @@ namespace IDT
s_idt = (GateDescriptor*)kmalloc_eternal(idt_size);
memset(s_idt, 0x00, idt_size);
s_irq_handlers = (void(**)())kmalloc_eternal(0x100 * sizeof(void(*)()));
memset(s_irq_handlers, 0x00, 0x100 * sizeof(void(*)()));
s_idtr.offset = s_idt;
s_idtr.size = idt_size - 1;
for (uint8_t i = 0x00; i <= 0xFF - IRQ_VECTOR_BASE; i++)
register_irq_handler(i, nullptr);
REGISTER_HANDLER(0x00);
REGISTER_HANDLER(0x01);
REGISTER_HANDLER(0x02);