diff --git a/hw/misc/macio/mac_dbdma.c b/hw/misc/macio/mac_dbdma.c
index c55c75c83c..d1506ce228 100644
--- a/hw/misc/macio/mac_dbdma.c
+++ b/hw/misc/macio/mac_dbdma.c
@@ -536,6 +536,11 @@ static void DBDMA_run_bh(void *opaque)
     DBDMA_run(s);
 }
 
+void DBDMA_kick(DBDMAState *dbdma)
+{
+    qemu_bh_schedule(dbdma_bh);
+}
+
 void DBDMA_register_channel(void *dbdma, int nchan, qemu_irq irq,
                             DBDMA_rw rw, DBDMA_flush flush,
                             void *opaque)
diff --git a/include/hw/ppc/mac_dbdma.h b/include/hw/ppc/mac_dbdma.h
index 90be5d9c9b..aaeab10b6c 100644
--- a/include/hw/ppc/mac_dbdma.h
+++ b/include/hw/ppc/mac_dbdma.h
@@ -161,6 +161,7 @@ typedef struct {
 void DBDMA_register_channel(void *dbdma, int nchan, qemu_irq irq,
                             DBDMA_rw rw, DBDMA_flush flush,
                             void *opaque);
+void DBDMA_kick(DBDMAState *dbdma);
 void* DBDMA_init (MemoryRegion **dbdma_mem);
 
 #endif