feat: No more kernel page table switching upon interrupt.

[lunaix-os.git] / lunaix-os / kernel / asm / x86 / interrupt.S

diff --git a/lunaix-os/kernel/asm/x86/interrupt.S b/lunaix-os/kernel/asm/x86/interrupt.S
index 584b1437435adba2845e2483eeb0a4b9ea306b8c..471a8e643f44a204b23c3928f5269cc76cd69ddf 100644 (file)
--- a/lunaix-os/kernel/asm/x86/interrupt.S
+++ b/lunaix-os/kernel/asm/x86/interrupt.S
@@ -1,3 +1,7 @@
+#define __ASM__
+#include <arch/x86/interrupts.h>
+// #define __ASM_INTR_DIAGNOSIS
+
 .macro isr_template vector, no_error_code=1
     .global _asm_isr\vector
     .type _asm_isr\vector, @function
@@ -9,19 +13,70 @@
         jmp interrupt_wrapper
 .endm
 
+#ifdef __ASM_INTR_DIAGNOSIS
+.section .bss
+    .global debug_resv
+    debug_resv:
+        .skip 16
+#endif
+
 .section .text
-    isr_template 0
+    isr_template FAULT_DIVISION_ERROR
+    isr_template FAULT_GENERAL_PROTECTION, no_error_code=0
+    isr_template FAULT_PAGE_FAULT, no_error_code=0
+
+    isr_template LUNAIX_SYS_PANIC
+    isr_template LUNAIX_SYS_CALL
+
+    isr_template APIC_ERROR_IV
+    isr_template APIC_LINT0_IV
+    isr_template APIC_TIMER_IV
+    isr_template APIC_SPIV_IV
+    isr_template RTC_TIMER_IV
+    isr_template PC_KBD_IV
 
     interrupt_wrapper:
+        pushl %esp
+
+        pushl %esi
+        pushl %ebp
+        pushl %edi
+        pushl %edx
+        pushl %ecx
+        pushl %ebx
+        pushl %eax
 
         movl %esp, %eax
         andl $0xfffffff0, %esp
         subl $16, %esp
         movl %eax, (%esp)
 
-        call interrupt_handler
-        pop %eax
-        movl %eax, %esp
+        call intr_handler
+
+    .global soft_iret
+    soft_iret:
+        popl %esp
+
+        popl %eax
+        popl %ebx
+        popl %ecx
+        popl %edx
+        popl %edi
+        popl %ebp
+        popl %esi
+        popl %esp
+
         addl $8, %esp
 
-        iret
\ No newline at end of file
+#ifdef __ASM_INTR_DIAGNOSIS
+        cmpl $0, (%esp)
+        jz 1f
+        iret
+1:
+        movl $__current, %eax
+        movl  (%esp), %ebx
+        movl $debug_resv, %ecx
+        ud2
+#else
+        iret
+#endif