From c9ad4bfbf875b0d23e1f7bf7d5aff2d149ba4fd7 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Mon, 19 Jul 2021 17:23:20 +0200
Subject: add a page fault handler

---
 src/kernel/arch/i386/interrupts/idt.c | 1 +
 src/kernel/arch/i386/interrupts/isr.c | 6 ++++++
 src/kernel/arch/i386/interrupts/isr.h | 3 +++
 3 files changed, 10 insertions(+)

diff --git a/src/kernel/arch/i386/interrupts/idt.c b/src/kernel/arch/i386/interrupts/idt.c
index 5573928..bbaf610 100644
--- a/src/kernel/arch/i386/interrupts/idt.c
+++ b/src/kernel/arch/i386/interrupts/idt.c
@@ -54,6 +54,7 @@ static void idt_prepare() {
 
 	idt_add(0x08, false, isr_double_fault);
 	idt_add(0x0d, false, isr_general_protection_fault);
+	idt_add(0x0e, false, isr_page_fault);
 	idt_add(0x34, false, isr_test_interrupt);
 }
 
diff --git a/src/kernel/arch/i386/interrupts/isr.c b/src/kernel/arch/i386/interrupts/isr.c
index 35796fa..9da06fb 100644
--- a/src/kernel/arch/i386/interrupts/isr.c
+++ b/src/kernel/arch/i386/interrupts/isr.c
@@ -20,6 +20,12 @@ void isr_general_protection_fault(UNUSED struct interrupt_frame *frame) {
 	panic();
 }
 
+__attribute__((interrupt))
+void isr_page_fault(UNUSED struct interrupt_frame *frame) {
+	log_const("#PF");
+	panic();
+}
+
 __attribute__((interrupt))
 void isr_test_interrupt(UNUSED struct interrupt_frame *frame) {
 	isr_test_interrupt_called = true;
diff --git a/src/kernel/arch/i386/interrupts/isr.h b/src/kernel/arch/i386/interrupts/isr.h
index 150fc46..c3585dc 100644
--- a/src/kernel/arch/i386/interrupts/isr.h
+++ b/src/kernel/arch/i386/interrupts/isr.h
@@ -11,5 +11,8 @@ void isr_double_fault(struct interrupt_frame *frame);
 __attribute__((interrupt))
 void isr_general_protection_fault(struct interrupt_frame *frame);
 
+__attribute__((interrupt))
+void isr_page_fault(struct interrupt_frame *frame);
+
 __attribute__((interrupt))
 void isr_test_interrupt(struct interrupt_frame *frame);
-- 
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