Index: kernel/arch/mips32/include/arch/drivers/msim.h
===================================================================
--- kernel/arch/mips32/include/arch/drivers/msim.h	(revision 530166281bc100e872a359ece46412bab839f7ea)
+++ kernel/arch/mips32/include/arch/drivers/msim.h	(revision 3f04c2848ceb79e88ac8c143bf9db142cf259220)
@@ -39,5 +39,7 @@
 #define MSIM_VIDEORAM     0x90000000
 #define MSIM_KBD_ADDRESS  0x90000000
+
 #define MSIM_KBD_IRQ      2
+#define MSIM_DDISK_IRQ    6
 
 #endif