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Kernel: IDT now allocates descriptors with kmalloc_eternal

This commit is contained in:
Bananymous 2023-01-22 03:15:48 +02:00
parent 026fdc251c
commit 62469c529f
1 changed files with 10 additions and 5 deletions
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15
kernel/arch/i386/IDT.cpp
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@ -1,8 +1,7 @@
#include <kernel/APIC.h> #include <kernel/APIC.h>
#include <kernel/IDT.h> #include <kernel/IDT.h>
#include <kernel/kmalloc.h>
#include <kernel/Panic.h> #include <kernel/Panic.h>
#include <kernel/kprint.h>
#include <kernel/Serial.h>
#define INTERRUPT_HANDLER____(i, msg) \ #define INTERRUPT_HANDLER____(i, msg) \
static void interrupt ## i () \ static void interrupt ## i () \
@ -71,9 +70,9 @@ namespace IDT
} __attribute((packed)); } __attribute((packed));
static IDTR s_idtr; static IDTR s_idtr;
static GateDescriptor s_idt[0x100]; static GateDescriptor* s_idt;
static void (*s_irq_handlers[0x100])() { nullptr }; static void (**s_irq_handlers)();
INTERRUPT_HANDLER____(0x00, "Division Error") INTERRUPT_HANDLER____(0x00, "Division Error")
INTERRUPT_HANDLER____(0x01, "Debug") INTERRUPT_HANDLER____(0x01, "Debug")
@ -184,8 +183,14 @@ namespace IDT
void initialize() void initialize()
{ {
s_idt = (GateDescriptor*)kmalloc_eternal(0x100 * sizeof(GateDescriptor));
s_irq_handlers = (void(**)())kmalloc_eternal(0x100 * sizeof(void(*)()));
for (uint32_t i = 0; i < 0x100; i++)
s_irq_handlers[i] = nullptr;
s_idtr.offset = s_idt; s_idtr.offset = s_idt;
s_idtr.size = sizeof(s_idt) - 1; s_idtr.size = 0x100 * sizeof(GateDescriptor) - 1;
for (uint8_t i = 0xFF; i > IRQ_VECTOR_BASE; i--) for (uint8_t i = 0xFF; i > IRQ_VECTOR_BASE; i--)
register_irq_handler(i, nullptr); register_irq_handler(i, nullptr);