Index: kernel/arch/mips32/src/interrupt.c
===================================================================
--- kernel/arch/mips32/src/interrupt.c	(revision 76e1121fed6e6c0ed59d4e04e66a3a89bc2c467f)
+++ kernel/arch/mips32/src/interrupt.c	(revision f14291b7aa81b1c2e34c39b70fe6df96dec062b6)
@@ -38,4 +38,5 @@
 #include <arch.h>
 #include <arch/cp0.h>
+#include <arch/smp/dorder.h>
 #include <time/clock.h>
 #include <ipc/sysipc.h>
@@ -48,4 +49,5 @@
 function virtual_timer_fnc = NULL;
 static irq_t timer_irq;
+static irq_t dorder_irq;
 
 // TODO: This is SMP unsafe!!!
@@ -149,4 +151,14 @@
 }
 
+static irq_ownership_t dorder_claim(irq_t *irq)
+{
+	return IRQ_ACCEPT;
+}
+
+static void dorder_irq_handler(irq_t *irq)
+{
+	dorder_ipi_ack(1 << dorder_cpuid());
+}
+
 /* Initialize basic tables for exception dispatching */
 void interrupt_init(void)
@@ -163,4 +175,13 @@
 	timer_start();
 	cp0_unmask_int(TIMER_IRQ);
+	
+	irq_initialize(&dorder_irq);
+	dorder_irq.devno = device_assign_devno();
+	dorder_irq.inr = DORDER_IRQ;
+	dorder_irq.claim = dorder_claim;
+	dorder_irq.handler = dorder_irq_handler;
+	irq_register(&dorder_irq);
+	
+	cp0_unmask_int(DORDER_IRQ);
 }
 
Index: kernel/arch/mips32/src/smp/dorder.c
===================================================================
--- kernel/arch/mips32/src/smp/dorder.c	(revision 76e1121fed6e6c0ed59d4e04e66a3a89bc2c467f)
+++ kernel/arch/mips32/src/smp/dorder.c	(revision f14291b7aa81b1c2e34c39b70fe6df96dec062b6)
@@ -33,17 +33,29 @@
  */
 
+#include <typedefs.h>
 #include <smp/ipi.h>
+#include <arch/smp/dorder.h>
+
+#define MSIM_DORDER_ADDRESS  0xB0000004
 
 #ifdef CONFIG_SMP
 
-#define MSIM_DORDER_ADDRESS  0xB0000004
-
 void ipi_broadcast_arch(int ipi)
 {
-	*((volatile unsigned int *) MSIM_DORDER_ADDRESS) = 0x7FFFFFFF;
+	*((volatile uint32_t *) MSIM_DORDER_ADDRESS) = 0x7fffffff;
 }
 
 #endif
 
+uint32_t dorder_cpuid(void)
+{
+	return *((volatile uint32_t *) MSIM_DORDER_ADDRESS);
+}
+
+void dorder_ipi_ack(uint32_t mask)
+{
+	*((volatile uint32_t *) (MSIM_DORDER_ADDRESS + 4)) = mask;
+}
+
 /** @}
  */