Changeset f74bbaf in mainline for kernel/arch/ia32/src/pm.c

Timestamp:

2007-04-09T06:13:24Z (18 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d0b1443

Parents:

261595b

Message:

start shutdown infrastructure

File:

• kernel/arch/ia32/src/pm.c (modified) (2 diffs)

kernel/arch/ia32/src/pm.c

@@ -122 +122 @@
 {
         idescriptor_t *d;
-        int i;
+        unsigned int i;
 
         for (i = 0; i < IDT_ITEMS; i++) {
@@ -231 +231 @@
 }
 
+/* Reboot the machine by initiating
+ * a triple fault
+ */
+void arch_reboot(void)
+{
+        preemption_disable();
+        ipl_t ipl = interrupts_disable();
+        
+        memsetb((uintptr_t) idt, sizeof(idt), 0);
+        
+        ptr_16_32_t idtr;
+        idtr.limit = sizeof(idt);
+        idtr.base = (uintptr_t) idt;
+        idtr_load(&idtr);
+        
+        interrupts_restore(ipl);
+        asm volatile (
+                "int $0x03\n"
+                "hlt\n"
+        );
+}
+
 /** @}
  */