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diff --git a/test/geekos_test_vm/include/geekos/irq.h b/test/geekos_test_vm/include/geekos/irq.h
new file mode 100644
index 0000000..3164170
--- /dev/null
+++ b/test/geekos_test_vm/include/geekos/irq.h
@@ -0,0 +1,28 @@
+/*
+ * This is the device-driver interface to the interrupt system.
+ * Copyright (c) 2001,2003 David H. Hovemeyer <daveho@cs.umd.edu>
+ * $Revision: 1.1 $
+ * 
+ * This is free software.  You are permitted to use,
+ * redistribute, and modify it as specified in the file "COPYING".
+ */
+
+#ifndef GEEKOS_IRQ_H
+#define GEEKOS_IRQ_H
+
+#include <geekos/int.h>
+
+void Install_IRQ(int irq, Interrupt_Handler handler);
+ushort_t Get_IRQ_Mask(void);
+void Set_IRQ_Mask(ushort_t mask);
+void Enable_IRQ(int irq);
+void Disable_IRQ(int irq);
+
+/*
+ * IRQ handlers should call these to begin and end the
+ * interrupt.
+ */
+void Begin_IRQ(struct Interrupt_State* state);
+void End_IRQ(struct Interrupt_State* state);
+
+#endif  /* GEEKOS_IRQ_H */