Index: qemu/vl.h
===================================================================
--- qemu.orig/vl.h	2007-08-14 19:25:52.000000000 +0000
+++ qemu/vl.h	2007-08-14 19:26:34.000000000 +0000
@@ -734,6 +734,50 @@
 
 #include "hw/irq.h"
 
+/* Generic DMA API */
+typedef void (*qemu_dma_handler)(void *opaque, target_phys_addr_t addr,
+                                 uint8_t *buf, int len, int is_write);
+
+typedef struct QEMUDMAState {
+    qemu_dma_handler handler;
+    void *opaque;
+} qemu_dma;
+
+static inline void dma_memory_read(qemu_dma *dma_opaque,
+                                   target_phys_addr_t addr,
+                                   uint8_t *buf, int len)
+{
+    if (dma_opaque)
+        dma_opaque->handler(dma_opaque->opaque, addr, buf, len, 0);
+}
+
+static inline void dma_memory_write(qemu_dma *dma_opaque,
+                                    target_phys_addr_t addr,
+                                    uint8_t *buf, int len)
+{
+    if (dma_opaque)
+        dma_opaque->handler(dma_opaque->opaque, addr, buf, len, 1);
+}
+
+static inline void dma_memory_rw(qemu_dma *dma_opaque,
+                                 target_phys_addr_t addr,
+                                 uint8_t *buf, int len, int is_write)
+{
+    if (dma_opaque)
+        dma_opaque->handler(dma_opaque->opaque, addr, buf, len, is_write);
+}
+
+static inline qemu_dma *qemu_init_dma(qemu_dma_handler handler, void *opaque)
+{
+    qemu_dma *s;
+
+    s = (qemu_dma *)qemu_mallocz(sizeof(qemu_dma));
+    s->handler = handler;
+    s->opaque = opaque;
+
+    return s;
+}
+
 /* ISA bus */
 
 extern target_phys_addr_t isa_mem_base;