--- qemu/hw/ide/pci.h	2018/04/24 18:40:21	1.1.1.2
+++ qemu/hw/ide/pci.h	2018/04/24 19:30:24	1.1.1.4
@@ -19,16 +19,31 @@ typedef struct BMDMAState {
     BlockDriverCompletionFunc *dma_cb;
     int64_t sector_num;
     uint32_t nsector;
-    IORange addr_ioport;
+    MemoryRegion addr_ioport;
+    MemoryRegion extra_io;
     QEMUBH *bh;
     qemu_irq irq;
+
+    /* Bit 0-2 and 7:   BM status register
+     * Bit 3-6:         bus->error_status */
+    uint8_t migration_compat_status;
+    struct PCIIDEState *pci_dev;
 } BMDMAState;
 
+typedef struct CMD646BAR {
+    MemoryRegion cmd;
+    MemoryRegion data;
+    IDEBus *bus;
+    struct PCIIDEState *pci_dev;
+} CMD646BAR;
+
 typedef struct PCIIDEState {
     PCIDevice dev;
     IDEBus bus[2];
     BMDMAState bmdma[2];
     uint32_t secondary; /* used only for cmd646 */
+    MemoryRegion bmdma_bar;
+    CMD646BAR cmd646_bar[2]; /* used only for cmd646 */
 } PCIIDEState;
 
 
@@ -39,9 +54,9 @@ static inline IDEState *bmdma_active_if(
 }
 
 
-void bmdma_init(IDEBus *bus, BMDMAState *bm);
-void bmdma_cmd_writeb(void *opaque, uint32_t addr, uint32_t val);
-extern const IORangeOps bmdma_addr_ioport_ops;
+void bmdma_init(IDEBus *bus, BMDMAState *bm, PCIIDEState *d);
+void bmdma_cmd_writeb(BMDMAState *bm, uint32_t val);
+extern MemoryRegionOps bmdma_addr_ioport_ops;
 void pci_ide_create_devs(PCIDevice *dev, DriveInfo **hd_table);
 
 extern const VMStateDescription vmstate_ide_pci;