refactor: kernel space yield() for controllable, flexible task switching

[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 48dff2faff1850a4be0b7aca45926d76ab357118..b4ce936b91ab5ed24a7f14dbe10a098a1a431c0f 100644 (file)
--- a/lunaix-os/kernel/asm/x86/interrupt.S
+++ b/lunaix-os/kernel/asm/x86/interrupt.S
@@ -36,13 +36,16 @@
 
     isr_template LUNAIX_SYS_PANIC
     isr_template LUNAIX_SYS_CALL
 
     isr_template LUNAIX_SYS_PANIC
     isr_template LUNAIX_SYS_CALL

+    isr_template LUNAIX_SCHED

 
     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 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
     isr_template PC_KBD_IV

+    isr_template AHCI_HBA_IV

 
     interrupt_wrapper:
         /*
 
     interrupt_wrapper:
         /*


@@ -117,6 +120,12 @@
     soft_iret:
         movl %eax, %esp
 
     soft_iret:
         movl %eax, %esp
 

+#ifdef __ASM_INTR_DIAGNOSIS
+        movl %eax, (debug_resv + 8)
+        movl 56(%esp), %eax
+        movl %eax, (debug_resv + 4)
+#endif
+

         popl %eax
         popl %ebx
         popl %ecx
         popl %eax
         popl %ebx
         popl %ecx


@@ -157,17 +166,17 @@
         # 约定
         # arg1: 目标进程PCB地址 (next
 
         # 约定
         # arg1: 目标进程PCB地址 (next
 

-        popl %ecx               # next
+        popl %ebx               # next

         movl __current, %eax    
         movl __current, %eax    

-        movl 88(%eax), %ebx     # __current->pagetable
-        movl 88(%ecx), %eax     # next->pagetable
+        movl 88(%eax), %ecx     # __current->pagetable
+        movl 88(%ebx), %eax     # next->pagetable

         
         

-        cmpl %ebx, %eax         # if(next->pagtable != __current->pagetable) {
+        cmpl %ecx, %eax         # if(next->pagtable != __current->pagetable) {

         jz 1f
         movl %eax, %cr3         #   cpu_lcr3(next->pagetable)
                                 # }
     1:
         jz 1f
         movl %eax, %cr3         #   cpu_lcr3(next->pagetable)
                                 # }
     1:

-        movl %ecx, __current    # __current = next
+        movl %ebx, __current    # __current = next

 
         # 我们已经处在了新的地址空间，为了避免影响其先前的栈布局
         # 需要使用一个临时的栈空间
 
         # 我们已经处在了新的地址空间，为了避免影响其先前的栈布局
         # 需要使用一个临时的栈空间


@@ -178,7 +187,7 @@
         jz 1f
         jmp handle_signal
     1:
         jz 1f
         jmp handle_signal
     1:

-        leal 8(%ecx), %eax
+        leal 8(%ebx), %eax

         jmp soft_iret
 
     .global handle_signal
         jmp soft_iret
 
     .global handle_signal