memory: add owner argument to initialization functions

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

29 files changed, 66 insertions, 66 deletions

diff --git a/hw/misc/a9scu.c b/hw/misc/a9scu.c
index 05897c2fa2..c8f26f923a 100644
--- a/hw/misc/a9scu.c
+++ b/hw/misc/a9scu.c
@@ -119,7 +119,7 @@ static void a9_scu_realize(DeviceState *dev, Error ** errp)
     A9SCUState *s = A9_SCU(dev);
     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
-    memory_region_init_io(&s->iomem, &a9_scu_ops, s, "a9-scu", 0x100);
+    memory_region_init_io(&s->iomem, NULL, &a9_scu_ops, s, "a9-scu", 0x100);
     sysbus_init_mmio(sbd, &s->iomem);
 }
 
diff --git a/hw/misc/applesmc.c b/hw/misc/applesmc.c
index 83468dc98f..ca4077f0b9 100644
--- a/hw/misc/applesmc.c
+++ b/hw/misc/applesmc.c
@@ -230,12 +230,12 @@ static void applesmc_isa_realize(DeviceState *dev, Error **errp)
 {
     AppleSMCState *s = APPLE_SMC(dev);
 
-    memory_region_init_io(&s->io_data, &applesmc_data_io_ops, s,
+    memory_region_init_io(&s->io_data, NULL, &applesmc_data_io_ops, s,
                           "applesmc-data", 4);
     isa_register_ioport(&s->parent_obj, &s->io_data,
                         s->iobase + APPLESMC_DATA_PORT);
 
-    memory_region_init_io(&s->io_cmd, &applesmc_cmd_io_ops, s,
+    memory_region_init_io(&s->io_cmd, NULL, &applesmc_cmd_io_ops, s,
                           "applesmc-cmd", 4);
     isa_register_ioport(&s->parent_obj, &s->io_cmd,
                         s->iobase + APPLESMC_CMD_PORT);
diff --git a/hw/misc/arm_l2x0.c b/hw/misc/arm_l2x0.c
index eb4427d9c4..954343f467 100644
--- a/hw/misc/arm_l2x0.c
+++ b/hw/misc/arm_l2x0.c
@@ -157,7 +157,7 @@ static int l2x0_priv_init(SysBusDevice *dev)
 {
     l2x0_state *s = FROM_SYSBUS(l2x0_state, dev);
 
-    memory_region_init_io(&s->iomem, &l2x0_mem_ops, s, "l2x0_cc", 0x1000);
+    memory_region_init_io(&s->iomem, NULL, &l2x0_mem_ops, s, "l2x0_cc", 0x1000);
     sysbus_init_mmio(dev, &s->iomem);
     return 0;
 }
diff --git a/hw/misc/arm_sysctl.c b/hw/misc/arm_sysctl.c
index c8b55a8349..9b07355c32 100644
--- a/hw/misc/arm_sysctl.c
+++ b/hw/misc/arm_sysctl.c
@@ -589,7 +589,7 @@ static void arm_sysctl_init(Object *obj)
     SysBusDevice *sd = SYS_BUS_DEVICE(obj);
     arm_sysctl_state *s = FROM_SYSBUS(arm_sysctl_state, sd);
 
-    memory_region_init_io(&s->iomem, &arm_sysctl_ops, s, "arm-sysctl", 0x1000);
+    memory_region_init_io(&s->iomem, NULL, &arm_sysctl_ops, s, "arm-sysctl", 0x1000);
     sysbus_init_mmio(sd, &s->iomem);
     qdev_init_gpio_in(dev, arm_sysctl_gpio_set, 2);
     qdev_init_gpio_out(dev, &s->pl110_mux_ctrl, 1);
diff --git a/hw/misc/debugexit.c b/hw/misc/debugexit.c
index ee254e46d2..e3a13f045c 100644
--- a/hw/misc/debugexit.c
+++ b/hw/misc/debugexit.c
@@ -40,7 +40,7 @@ static void debug_exit_realizefn(DeviceState *d, Error **errp)
     ISADevice *dev = ISA_DEVICE(d);
     ISADebugExitState *isa = ISA_DEBUG_EXIT_DEVICE(d);
 
-    memory_region_init_io(&isa->io, &debug_exit_ops, isa,
+    memory_region_init_io(&isa->io, NULL, &debug_exit_ops, isa,
                           TYPE_ISA_DEBUG_EXIT_DEVICE, isa->iosize);
     memory_region_add_subregion(isa_address_space_io(dev),
                                 isa->iobase, &isa->io);
diff --git a/hw/misc/eccmemctl.c b/hw/misc/eccmemctl.c
index 6f4a407cbf..71d62cc239 100644
--- a/hw/misc/eccmemctl.c
+++ b/hw/misc/eccmemctl.c
@@ -296,11 +296,11 @@ static int ecc_init1(SysBusDevice *dev)
 
     sysbus_init_irq(dev, &s->irq);
     s->regs[0] = s->version;
-    memory_region_init_io(&s->iomem, &ecc_mem_ops, s, "ecc", ECC_SIZE);
+    memory_region_init_io(&s->iomem, NULL, &ecc_mem_ops, s, "ecc", ECC_SIZE);
     sysbus_init_mmio(dev, &s->iomem);
 
     if (s->version == ECC_MCC) { // SS-600MP only
-        memory_region_init_io(&s->iomem_diag, &ecc_diag_mem_ops, s,
+        memory_region_init_io(&s->iomem_diag, NULL, &ecc_diag_mem_ops, s,
                               "ecc.diag", ECC_DIAG_SIZE);
         sysbus_init_mmio(dev, &s->iomem_diag);
     }
diff --git a/hw/misc/exynos4210_pmu.c b/hw/misc/exynos4210_pmu.c
index ba5aa8d0e4..465e72f933 100644
--- a/hw/misc/exynos4210_pmu.c
+++ b/hw/misc/exynos4210_pmu.c
@@ -458,7 +458,7 @@ static int exynos4210_pmu_init(SysBusDevice *dev)
     Exynos4210PmuState *s = FROM_SYSBUS(Exynos4210PmuState, dev);
 
     /* memory mapping */
-    memory_region_init_io(&s->iomem, &exynos4210_pmu_ops, s, "exynos4210.pmu",
+    memory_region_init_io(&s->iomem, NULL, &exynos4210_pmu_ops, s, "exynos4210.pmu",
                           EXYNOS4210_PMU_REGS_MEM_SIZE);
     sysbus_init_mmio(dev, &s->iomem);
     return 0;
diff --git a/hw/misc/imx_ccm.c b/hw/misc/imx_ccm.c
index 427ce5cd1d..863c219e7c 100644
--- a/hw/misc/imx_ccm.c
+++ b/hw/misc/imx_ccm.c
@@ -281,7 +281,7 @@ static int imx_ccm_init(SysBusDevice *dev)
 {
     IMXCCMState *s = FROM_SYSBUS(typeof(*s), dev);
 
-    memory_region_init_io(&s->iomem, &imx_ccm_ops, s, "imx_ccm", 0x1000);
+    memory_region_init_io(&s->iomem, NULL, &imx_ccm_ops, s, "imx_ccm", 0x1000);
     sysbus_init_mmio(dev, &s->iomem);
 
     return 0;
diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c
index 5658f733f4..522740d5bb 100644
--- a/hw/misc/ivshmem.c
+++ b/hw/misc/ivshmem.c
@@ -339,7 +339,7 @@ static void create_shared_memory_BAR(IVShmemState *s, int fd) {
 
     ptr = mmap(0, s->ivshmem_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
 
-    memory_region_init_ram_ptr(&s->ivshmem, "ivshmem.bar2",
+    memory_region_init_ram_ptr(&s->ivshmem, NULL, "ivshmem.bar2",
                                s->ivshmem_size, ptr);
     vmstate_register_ram(&s->ivshmem, &s->dev.qdev);
     memory_region_add_subregion(&s->bar, 0, &s->ivshmem);
@@ -467,7 +467,7 @@ static void ivshmem_read(void *opaque, const uint8_t * buf, int flags)
         /* mmap the region and map into the BAR2 */
         map_ptr = mmap(0, s->ivshmem_size, PROT_READ|PROT_WRITE, MAP_SHARED,
                                                             incoming_fd, 0);
-        memory_region_init_ram_ptr(&s->ivshmem,
+        memory_region_init_ram_ptr(&s->ivshmem, NULL,
                                    "ivshmem.bar2", s->ivshmem_size, map_ptr);
         vmstate_register_ram(&s->ivshmem, &s->dev.qdev);
 
@@ -685,14 +685,14 @@ static int pci_ivshmem_init(PCIDevice *dev)
 
     s->shm_fd = 0;
 
-    memory_region_init_io(&s->ivshmem_mmio, &ivshmem_mmio_ops, s,
+    memory_region_init_io(&s->ivshmem_mmio, NULL, &ivshmem_mmio_ops, s,
                           "ivshmem-mmio", IVSHMEM_REG_BAR_SIZE);
 
     /* region for registers*/
     pci_register_bar(&s->dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY,
                      &s->ivshmem_mmio);
 
-    memory_region_init(&s->bar, "ivshmem-bar2-container", s->ivshmem_size);
+    memory_region_init(&s->bar, NULL, "ivshmem-bar2-container", s->ivshmem_size);
     s->ivshmem_attr = PCI_BASE_ADDRESS_SPACE_MEMORY |
         PCI_BASE_ADDRESS_MEM_PREFETCH;
     if (s->ivshmem_64bit) {
diff --git a/hw/misc/lm32_sys.c b/hw/misc/lm32_sys.c
index aeaf2b7b7b..accfbe3c44 100644
--- a/hw/misc/lm32_sys.c
+++ b/hw/misc/lm32_sys.c
@@ -117,7 +117,7 @@ static int lm32_sys_init(SysBusDevice *dev)
 {
     LM32SysState *s = FROM_SYSBUS(typeof(*s), dev);
 
-    memory_region_init_io(&s->iomem, &sys_ops , s, "sys", R_MAX * 4);
+    memory_region_init_io(&s->iomem, NULL, &sys_ops , s, "sys", R_MAX * 4);
     sysbus_init_mmio(dev, &s->iomem);
 
     /* Note: This device is not created in the board initialization,
diff --git a/hw/misc/macio/cuda.c b/hw/misc/macio/cuda.c
index f797796a36..c0fd7da118 100644
--- a/hw/misc/macio/cuda.c
+++ b/hw/misc/macio/cuda.c
@@ -703,7 +703,7 @@ static void cuda_initfn(Object *obj)
     CUDAState *s = CUDA(obj);
     int i;
 
-    memory_region_init_io(&s->mem, &cuda_ops, s, "cuda", 0x2000);
+    memory_region_init_io(&s->mem, NULL, &cuda_ops, s, "cuda", 0x2000);
     sysbus_init_mmio(d, &s->mem);
     sysbus_init_irq(d, &s->irq);
 
diff --git a/hw/misc/macio/mac_dbdma.c b/hw/misc/macio/mac_dbdma.c
index 2fc7f87bb6..a1d7862a66 100644
--- a/hw/misc/macio/mac_dbdma.c
+++ b/hw/misc/macio/mac_dbdma.c
@@ -848,7 +848,7 @@ void* DBDMA_init (MemoryRegion **dbdma_mem)
 
     s = g_malloc0(sizeof(DBDMAState));
 
-    memory_region_init_io(&s->mem, &dbdma_ops, s, "dbdma", 0x1000);
+    memory_region_init_io(&s->mem, NULL, &dbdma_ops, s, "dbdma", 0x1000);
     *dbdma_mem = &s->mem;
     vmstate_register(NULL, -1, &vmstate_dbdma, s);
     qemu_register_reset(dbdma_reset, s);
diff --git a/hw/misc/macio/macio.c b/hw/misc/macio/macio.c
index fd4c8e5f99..76a1cfba32 100644
--- a/hw/misc/macio/macio.c
+++ b/hw/misc/macio/macio.c
@@ -104,11 +104,11 @@ static void macio_escc_legacy_setup(MacIOState *macio_state)
         0xF0, 0xE0,
     };
 
-    memory_region_init(escc_legacy, "escc-legacy", 256);
+    memory_region_init(escc_legacy, NULL, "escc-legacy", 256);
     for (i = 0; i < ARRAY_SIZE(maps); i += 2) {
         MemoryRegion *port = g_new(MemoryRegion, 1);
-        memory_region_init_alias(port, "escc-legacy-port", macio_state->escc_mem,
-                                 maps[i+1], 0x2);
+        memory_region_init_alias(port, NULL, "escc-legacy-port",
+                                 macio_state->escc_mem, maps[i+1], 0x2);
         memory_region_add_subregion(escc_legacy, maps[i], port);
     }
 
@@ -269,7 +269,7 @@ static void macio_instance_init(Object *obj)
     MacIOState *s = MACIO(obj);
     MemoryRegion *dbdma_mem;
 
-    memory_region_init(&s->bar, "macio", 0x80000);
+    memory_region_init(&s->bar, NULL, "macio", 0x80000);
 
     object_initialize(&s->cuda, TYPE_CUDA);
     qdev_set_parent_bus(DEVICE(&s->cuda), sysbus_get_default());
diff --git a/hw/misc/milkymist-hpdmc.c b/hw/misc/milkymist-hpdmc.c
index d922f6ffad..f4826b94bb 100644
--- a/hw/misc/milkymist-hpdmc.c
+++ b/hw/misc/milkymist-hpdmc.c
@@ -127,7 +127,7 @@ static int milkymist_hpdmc_init(SysBusDevice *dev)
 {
     MilkymistHpdmcState *s = FROM_SYSBUS(typeof(*s), dev);
 
-    memory_region_init_io(&s->regs_region, &hpdmc_mmio_ops, s,
+    memory_region_init_io(&s->regs_region, NULL, &hpdmc_mmio_ops, s,
             "milkymist-hpdmc", R_MAX * 4);
     sysbus_init_mmio(dev, &s->regs_region);
 
diff --git a/hw/misc/milkymist-pfpu.c b/hw/misc/milkymist-pfpu.c
index fe1b039550..0051bc955b 100644
--- a/hw/misc/milkymist-pfpu.c
+++ b/hw/misc/milkymist-pfpu.c
@@ -497,7 +497,7 @@ static int milkymist_pfpu_init(SysBusDevice *dev)
 
     sysbus_init_irq(dev, &s->irq);
 
-    memory_region_init_io(&s->regs_region, &pfpu_mmio_ops, s,
+    memory_region_init_io(&s->regs_region, NULL, &pfpu_mmio_ops, s,
             "milkymist-pfpu", MICROCODE_END * 4);
     sysbus_init_mmio(dev, &s->regs_region);
 
diff --git a/hw/misc/mst_fpga.c b/hw/misc/mst_fpga.c
index 1dd15054d0..b727dabfbf 100644
--- a/hw/misc/mst_fpga.c
+++ b/hw/misc/mst_fpga.c
@@ -208,7 +208,7 @@ static int mst_fpga_init(SysBusDevice *dev)
 	/* alloc the external 16 irqs */
 	qdev_init_gpio_in(&dev->qdev, mst_fpga_set_irq, MST_NUM_IRQS);
 
-	memory_region_init_io(&s->iomem, &mst_fpga_ops, s,
+	memory_region_init_io(&s->iomem, NULL, &mst_fpga_ops, s,
 			    "fpga", 0x00100000);
 	sysbus_init_mmio(dev, &s->iomem);
 	return 0;
diff --git a/hw/misc/omap_gpmc.c b/hw/misc/omap_gpmc.c
index 91adb66c2b..2047274123 100644
--- a/hw/misc/omap_gpmc.c
+++ b/hw/misc/omap_gpmc.c
@@ -413,7 +413,7 @@ static void omap_gpmc_cs_map(struct omap_gpmc_s *s, int cs)
      * constant), the mask should cause wrapping of the address space, so
      * that the same memory becomes accessible at every <i>size</i> bytes
      * starting from <i>base</i>.  */
-    memory_region_init(&f->container, "omap-gpmc-file", size);
+    memory_region_init(&f->container, NULL, "omap-gpmc-file", size);
     memory_region_add_subregion(&f->container, 0,
                                 omap_gpmc_cs_memregion(s, cs));
     memory_region_add_subregion(get_system_memory(), base,
@@ -826,7 +826,7 @@ struct omap_gpmc_s *omap_gpmc_init(struct omap_mpu_state_s *mpu,
     struct omap_gpmc_s *s = (struct omap_gpmc_s *)
             g_malloc0(sizeof(struct omap_gpmc_s));
 
-    memory_region_init_io(&s->iomem, &omap_gpmc_ops, s, "omap-gpmc", 0x1000);
+    memory_region_init_io(&s->iomem, NULL, &omap_gpmc_ops, s, "omap-gpmc", 0x1000);
     memory_region_add_subregion(get_system_memory(), base, &s->iomem);
 
     s->irq = irq;
@@ -843,14 +843,14 @@ struct omap_gpmc_s *omap_gpmc_init(struct omap_mpu_state_s *mpu,
      * guest-requested size.
      */
     for (cs = 0; cs < 8; cs++) {
-        memory_region_init_io(&s->cs_file[cs].nandiomem,
+        memory_region_init_io(&s->cs_file[cs].nandiomem, NULL,
                               &omap_nand_ops,
                               &s->cs_file[cs],
                               "omap-nand",
                               256 * 1024 * 1024);
     }
 
-    memory_region_init_io(&s->prefetch.iomem, &omap_prefetch_ops, s,
+    memory_region_init_io(&s->prefetch.iomem, NULL, &omap_prefetch_ops, s,
                           "omap-gpmc-prefetch", 256 * 1024 * 1024);
     return s;
 }
diff --git a/hw/misc/omap_l4.c b/hw/misc/omap_l4.c
index ac8251f736..f2372500c0 100644
--- a/hw/misc/omap_l4.c
+++ b/hw/misc/omap_l4.c
@@ -136,7 +136,7 @@ struct omap_target_agent_s *omap_l4ta_get(struct omap_l4_s *bus,
     ta->status = 0x00000000;
     ta->control = 0x00000200;	/* XXX 01000200 for L4TAO */
 
-    memory_region_init_io(&ta->iomem, &omap_l4ta_ops, ta, "omap.l4ta",
+    memory_region_init_io(&ta->iomem, NULL, &omap_l4ta_ops, ta, "omap.l4ta",
                           omap_l4_region_size(ta, info->ta_region));
     omap_l4_attach(ta, info->ta_region, &ta->iomem);
 
diff --git a/hw/misc/omap_sdrc.c b/hw/misc/omap_sdrc.c
index e38b571054..ed62caf03f 100644
--- a/hw/misc/omap_sdrc.c
+++ b/hw/misc/omap_sdrc.c
@@ -161,7 +161,7 @@ struct omap_sdrc_s *omap_sdrc_init(MemoryRegion *sysmem,
 
     omap_sdrc_reset(s);
 
-    memory_region_init_io(&s->iomem, &omap_sdrc_ops, s, "omap.sdrc", 0x1000);
+    memory_region_init_io(&s->iomem, NULL, &omap_sdrc_ops, s, "omap.sdrc", 0x1000);
     memory_region_add_subregion(sysmem, base, &s->iomem);
 
     return s;
diff --git a/hw/misc/omap_tap.c b/hw/misc/omap_tap.c
index 99b70d5a75..9d2b71014c 100644
--- a/hw/misc/omap_tap.c
+++ b/hw/misc/omap_tap.c
@@ -110,7 +110,7 @@ static const MemoryRegionOps omap_tap_ops = {
 void omap_tap_init(struct omap_target_agent_s *ta,
                 struct omap_mpu_state_s *mpu)
 {
-    memory_region_init_io(&mpu->tap_iomem, &omap_tap_ops, mpu, "omap.tap",
+    memory_region_init_io(&mpu->tap_iomem, NULL, &omap_tap_ops, mpu, "omap.tap",
                           omap_l4_region_size(ta, 0));
     omap_l4_attach(ta, 0, &mpu->tap_iomem);
 }
diff --git a/hw/misc/pc-testdev.c b/hw/misc/pc-testdev.c
index e6707d69d4..31c9878649 100644
--- a/hw/misc/pc-testdev.c
+++ b/hw/misc/pc-testdev.c
@@ -149,13 +149,13 @@ static void testdev_realizefn(DeviceState *d, Error **errp)
     MemoryRegion *mem = isa_address_space(isa);
     MemoryRegion *io = isa_address_space_io(isa);
 
-    memory_region_init_io(&dev->ioport, &test_ioport_ops, dev,
+    memory_region_init_io(&dev->ioport, NULL, &test_ioport_ops, dev,
                           "pc-testdev-ioport", 4);
-    memory_region_init_io(&dev->flush, &test_flush_ops, dev,
+    memory_region_init_io(&dev->flush, NULL, &test_flush_ops, dev,
                           "pc-testdev-flush-page", 4);
-    memory_region_init_io(&dev->irq, &test_irq_ops, dev,
+    memory_region_init_io(&dev->irq, NULL, &test_irq_ops, dev,
                           "pc-testdev-irq-line", 24);
-    memory_region_init_io(&dev->iomem, &test_iomem_ops, dev,
+    memory_region_init_io(&dev->iomem, NULL, &test_iomem_ops, dev,
                           "pc-testdev-iomem", IOMEM_LEN);
 
     memory_region_add_subregion(io,  0xe0,       &dev->ioport);
diff --git a/hw/misc/pci-testdev.c b/hw/misc/pci-testdev.c
index 71ce5a3e08..fb9a58c5a3 100644
--- a/hw/misc/pci-testdev.c
+++ b/hw/misc/pci-testdev.c
@@ -236,9 +236,9 @@ static int pci_testdev_init(PCIDevice *pci_dev)
 
     pci_conf[PCI_INTERRUPT_PIN] = 0; /* no interrupt pin */
 
-    memory_region_init_io(&d->mmio, &pci_testdev_mmio_ops, d,
+    memory_region_init_io(&d->mmio, NULL, &pci_testdev_mmio_ops, d,
                           "pci-testdev-mmio", IOTEST_MEMSIZE * 2);
-    memory_region_init_io(&d->portio, &pci_testdev_pio_ops, d,
+    memory_region_init_io(&d->portio, NULL, &pci_testdev_pio_ops, d,
                           "pci-testdev-portio", IOTEST_IOSIZE * 2);
     pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &d->mmio);
     pci_register_bar(&d->dev, 1, PCI_BASE_ADDRESS_SPACE_IO, &d->portio);
diff --git a/hw/misc/puv3_pm.c b/hw/misc/puv3_pm.c
index 0aacdc2fce..d4a863f0c9 100644
--- a/hw/misc/puv3_pm.c
+++ b/hw/misc/puv3_pm.c
@@ -120,7 +120,7 @@ static int puv3_pm_init(SysBusDevice *dev)
 
     s->reg_PCGR = 0x0;
 
-    memory_region_init_io(&s->iomem, &puv3_pm_ops, s, "puv3_pm",
+    memory_region_init_io(&s->iomem, NULL, &puv3_pm_ops, s, "puv3_pm",
             PUV3_REGS_OFFSET);
     sysbus_init_mmio(dev, &s->iomem);
 
diff --git a/hw/misc/pvpanic.c b/hw/misc/pvpanic.c
index 060099b553..00d6e6343f 100644
--- a/hw/misc/pvpanic.c
+++ b/hw/misc/pvpanic.c
@@ -90,7 +90,7 @@ static void pvpanic_isa_initfn(Object *obj)
 {
     PVPanicState *s = ISA_PVPANIC_DEVICE(obj);
 
-    memory_region_init_io(&s->io, &pvpanic_ops, s, "pvpanic", 1);
+    memory_region_init_io(&s->io, NULL, &pvpanic_ops, s, "pvpanic", 1);
 }
 
 static void pvpanic_isa_realizefn(DeviceState *dev, Error **errp)
diff --git a/hw/misc/pxa2xx_pcmcia.c b/hw/misc/pxa2xx_pcmcia.c
index 323d458491..ef71a2af74 100644
--- a/hw/misc/pxa2xx_pcmcia.c
+++ b/hw/misc/pxa2xx_pcmcia.c
@@ -128,7 +128,7 @@ PXA2xxPCMCIAState *pxa2xx_pcmcia_init(MemoryRegion *sysmem,
             g_malloc0(sizeof(PXA2xxPCMCIAState));
 
     /* Socket I/O Memory Space */
-    memory_region_init_io(&s->iomem, &pxa2xx_pcmcia_io_ops, s,
+    memory_region_init_io(&s->iomem, NULL, &pxa2xx_pcmcia_io_ops, s,
                           "pxa2xx-pcmcia-io", 0x04000000);
     memory_region_add_subregion(sysmem, base | 0x00000000,
                                 &s->iomem);
@@ -136,13 +136,13 @@ PXA2xxPCMCIAState *pxa2xx_pcmcia_init(MemoryRegion *sysmem,
     /* Then next 64 MB is reserved */
 
     /* Socket Attribute Memory Space */
-    memory_region_init_io(&s->attr_iomem, &pxa2xx_pcmcia_attr_ops, s,
+    memory_region_init_io(&s->attr_iomem, NULL, &pxa2xx_pcmcia_attr_ops, s,
                           "pxa2xx-pcmcia-attribute", 0x04000000);
     memory_region_add_subregion(sysmem, base | 0x08000000,
                                 &s->attr_iomem);
 
     /* Socket Common Memory Space */
-    memory_region_init_io(&s->common_iomem, &pxa2xx_pcmcia_common_ops, s,
+    memory_region_init_io(&s->common_iomem, NULL, &pxa2xx_pcmcia_common_ops, s,
                           "pxa2xx-pcmcia-common", 0x04000000);
     memory_region_add_subregion(sysmem, base | 0x0c000000,
                                 &s->common_iomem);
diff --git a/hw/misc/slavio_misc.c b/hw/misc/slavio_misc.c
index a7a9368864..dbc6081b1d 100644
--- a/hw/misc/slavio_misc.c
+++ b/hw/misc/slavio_misc.c
@@ -412,7 +412,7 @@ static int apc_init1(SysBusDevice *dev)
     sysbus_init_irq(dev, &s->cpu_halt);
 
     /* Power management (APC) XXX: not a Slavio device */
-    memory_region_init_io(&s->iomem, &apc_mem_ops, s,
+    memory_region_init_io(&s->iomem, NULL, &apc_mem_ops, s,
                           "apc", MISC_SIZE);
     sysbus_init_mmio(dev, &s->iomem);
     return 0;
@@ -427,39 +427,39 @@ static int slavio_misc_init1(SysBusDevice *dev)
 
     /* 8 bit registers */
     /* Slavio control */
-    memory_region_init_io(&s->cfg_iomem, &slavio_cfg_mem_ops, s,
+    memory_region_init_io(&s->cfg_iomem, NULL, &slavio_cfg_mem_ops, s,
                           "configuration", MISC_SIZE);
     sysbus_init_mmio(dev, &s->cfg_iomem);
 
     /* Diagnostics */
-    memory_region_init_io(&s->diag_iomem, &slavio_diag_mem_ops, s,
+    memory_region_init_io(&s->diag_iomem, NULL, &slavio_diag_mem_ops, s,
                           "diagnostic", MISC_SIZE);
     sysbus_init_mmio(dev, &s->diag_iomem);
 
     /* Modem control */
-    memory_region_init_io(&s->mdm_iomem, &slavio_mdm_mem_ops, s,
+    memory_region_init_io(&s->mdm_iomem, NULL, &slavio_mdm_mem_ops, s,
                           "modem", MISC_SIZE);
     sysbus_init_mmio(dev, &s->mdm_iomem);
 
     /* 16 bit registers */
     /* ss600mp diag LEDs */
-    memory_region_init_io(&s->led_iomem, &slavio_led_mem_ops, s,
+    memory_region_init_io(&s->led_iomem, NULL, &slavio_led_mem_ops, s,
                           "leds", MISC_SIZE);
     sysbus_init_mmio(dev, &s->led_iomem);
 
     /* 32 bit registers */
     /* System control */
-    memory_region_init_io(&s->sysctrl_iomem, &slavio_sysctrl_mem_ops, s,
+    memory_region_init_io(&s->sysctrl_iomem, NULL, &slavio_sysctrl_mem_ops, s,
                           "system-control", MISC_SIZE);
     sysbus_init_mmio(dev, &s->sysctrl_iomem);
 
     /* AUX 1 (Misc System Functions) */
-    memory_region_init_io(&s->aux1_iomem, &slavio_aux1_mem_ops, s,
+    memory_region_init_io(&s->aux1_iomem, NULL, &slavio_aux1_mem_ops, s,
                           "misc-system-functions", MISC_SIZE);
     sysbus_init_mmio(dev, &s->aux1_iomem);
 
     /* AUX 2 (Software Powerdown Control) */
-    memory_region_init_io(&s->aux2_iomem, &slavio_aux2_mem_ops, s,
+    memory_region_init_io(&s->aux2_iomem, NULL, &slavio_aux2_mem_ops, s,
                           "software-powerdown-control", MISC_SIZE);
     sysbus_init_mmio(dev, &s->aux2_iomem);
 
diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c
index 52fb03601d..e2e957d6f6 100644
--- a/hw/misc/vfio.c
+++ b/hw/misc/vfio.c
@@ -1154,7 +1154,7 @@ static void vfio_vga_probe_ati_3c3_quirk(VFIODevice *vdev)
     quirk->vdev = vdev;
     quirk->data = (physbar >> 8) & 0xff;
 
-    memory_region_init_io(&quirk->mem, &vfio_ati_3c3_quirk, quirk,
+    memory_region_init_io(&quirk->mem, NULL, &vfio_ati_3c3_quirk, quirk,
                           "vfio-ati-3c3-quirk", 1);
     memory_region_add_subregion(&vdev->vga.region[QEMU_PCI_VGA_IO_HI].mem, 3,
                                 &quirk->mem);
@@ -1245,7 +1245,7 @@ static void vfio_probe_ati_4010_quirk(VFIODevice *vdev, int nr)
     quirk = g_malloc0(sizeof(*quirk));
     quirk->vdev = vdev;
 
-    memory_region_init_io(&quirk->mem, &vfio_ati_4010_quirk, quirk,
+    memory_region_init_io(&quirk->mem, NULL, &vfio_ati_4010_quirk, quirk,
                           "vfio-ati-4010-quirk", 8);
     memory_region_add_subregion_overlap(&vdev->bars[nr].mem, 0, &quirk->mem, 1);
 
@@ -1331,7 +1331,7 @@ static void vfio_probe_ati_f10_quirk(VFIODevice *vdev, int nr)
     quirk = g_malloc0(sizeof(*quirk));
     quirk->vdev = vdev;
 
-    memory_region_init_io(&quirk->mem, &vfio_ati_f10_quirk, quirk,
+    memory_region_init_io(&quirk->mem, NULL, &vfio_ati_f10_quirk, quirk,
                           "vfio-ati-f10-quirk", 8);
     memory_region_add_subregion_overlap(&vdev->bars[nr].mem, 0, &quirk->mem, 1);
 
@@ -1451,7 +1451,7 @@ static void vfio_vga_probe_nvidia_3d0_quirk(VFIODevice *vdev)
     quirk = g_malloc0(sizeof(*quirk));
     quirk->vdev = vdev;
 
-    memory_region_init_io(&quirk->mem, &vfio_nvidia_3d0_quirk, quirk,
+    memory_region_init_io(&quirk->mem, NULL, &vfio_nvidia_3d0_quirk, quirk,
                           "vfio-nvidia-3d0-quirk", 6);
     memory_region_add_subregion(&vdev->vga.region[QEMU_PCI_VGA_IO_HI].mem,
                                 0x10, &quirk->mem);
@@ -1566,7 +1566,7 @@ static void vfio_probe_nvidia_bar5_window_quirk(VFIODevice *vdev, int nr)
     quirk = g_malloc0(sizeof(*quirk));
     quirk->vdev = vdev;
 
-    memory_region_init_io(&quirk->mem, &vfio_nvidia_bar5_window_quirk, quirk,
+    memory_region_init_io(&quirk->mem, NULL, &vfio_nvidia_bar5_window_quirk, quirk,
                           "vfio-nvidia-bar5-window-quirk", 16);
     memory_region_add_subregion_overlap(&vdev->bars[nr].mem, 0, &quirk->mem, 1);
 
@@ -1644,7 +1644,7 @@ static void vfio_probe_nvidia_bar0_88000_quirk(VFIODevice *vdev, int nr)
     quirk = g_malloc0(sizeof(*quirk));
     quirk->vdev = vdev;
 
-    memory_region_init_io(&quirk->mem, &vfio_nvidia_bar0_88000_quirk, quirk,
+    memory_region_init_io(&quirk->mem, NULL, &vfio_nvidia_bar0_88000_quirk, quirk,
                           "vfio-nvidia-bar0-88000-quirk",
                           TARGET_PAGE_ALIGN(PCIE_CONFIG_SPACE_SIZE));
     memory_region_add_subregion_overlap(&vdev->bars[nr].mem,
@@ -1723,7 +1723,7 @@ static void vfio_probe_nvidia_bar0_1800_quirk(VFIODevice *vdev, int nr)
     quirk = g_malloc0(sizeof(*quirk));
     quirk->vdev = vdev;
 
-    memory_region_init_io(&quirk->mem, &vfio_nvidia_bar0_1800_quirk, quirk,
+    memory_region_init_io(&quirk->mem, NULL, &vfio_nvidia_bar0_1800_quirk, quirk,
                           "vfio-nvidia-bar0-1800-quirk",
                           TARGET_PAGE_ALIGN(PCI_CONFIG_SPACE_SIZE));
     memory_region_add_subregion_overlap(&vdev->bars[nr].mem,
@@ -2228,11 +2228,11 @@ static int vfio_mmap_bar(VFIOBAR *bar, MemoryRegion *mem, MemoryRegion *submem,
             goto empty_region;
         }
 
-        memory_region_init_ram_ptr(submem, name, size, *map);
+        memory_region_init_ram_ptr(submem, NULL, name, size, *map);
     } else {
 empty_region:
         /* Create a zero sized sub-region to make cleanup easy. */
-        memory_region_init(submem, name, 0);
+        memory_region_init(submem, NULL, name, 0);
     }
 
     memory_region_add_subregion(mem, offset, submem);
@@ -2271,7 +2271,7 @@ static void vfio_map_bar(VFIODevice *vdev, int nr)
            ~PCI_BASE_ADDRESS_IO_MASK : ~PCI_BASE_ADDRESS_MEM_MASK);
 
     /* A "slow" read/write mapping underlies all BARs */
-    memory_region_init_io(&bar->mem, &vfio_bar_ops, bar, name, size);
+    memory_region_init_io(&bar->mem, NULL, &vfio_bar_ops, bar, name, size);
     pci_register_bar(&vdev->pdev, nr, type, &bar->mem);
 
     /*
@@ -2315,17 +2315,17 @@ static void vfio_map_bars(VFIODevice *vdev)
     }
 
     if (vdev->has_vga) {
-        memory_region_init_io(&vdev->vga.region[QEMU_PCI_VGA_MEM].mem,
+        memory_region_init_io(&vdev->vga.region[QEMU_PCI_VGA_MEM].mem, NULL,
                               &vfio_vga_ops,
                               &vdev->vga.region[QEMU_PCI_VGA_MEM],
                               "vfio-vga-mmio@0xa0000",
                               QEMU_PCI_VGA_MEM_SIZE);
-        memory_region_init_io(&vdev->vga.region[QEMU_PCI_VGA_IO_LO].mem,
+        memory_region_init_io(&vdev->vga.region[QEMU_PCI_VGA_IO_LO].mem, NULL,
                               &vfio_vga_ops,
                               &vdev->vga.region[QEMU_PCI_VGA_IO_LO],
                               "vfio-vga-io@0x3b0",
                               QEMU_PCI_VGA_IO_LO_SIZE);
-        memory_region_init_io(&vdev->vga.region[QEMU_PCI_VGA_IO_HI].mem,
+        memory_region_init_io(&vdev->vga.region[QEMU_PCI_VGA_IO_HI].mem, NULL,
                               &vfio_vga_ops,
                               &vdev->vga.region[QEMU_PCI_VGA_IO_HI],
                               "vfio-vga-io@0x3c0",
@@ -2588,7 +2588,7 @@ static int vfio_load_rom(VFIODevice *vdev)
     snprintf(name, sizeof(name), "vfio[%04x:%02x:%02x.%x].rom",
              vdev->host.domain, vdev->host.bus, vdev->host.slot,
              vdev->host.function);
-    memory_region_init_ram(&vdev->pdev.rom, name, size);
+    memory_region_init_ram(&vdev->pdev.rom, NULL, name, size);
     ptr = memory_region_get_ram_ptr(&vdev->pdev.rom);
     memset(ptr, 0xff, size);
 
diff --git a/hw/misc/vmport.c b/hw/misc/vmport.c
index 86390728f5..7f64ccda62 100644
--- a/hw/misc/vmport.c
+++ b/hw/misc/vmport.c
@@ -142,7 +142,7 @@ static void vmport_realizefn(DeviceState *dev, Error **errp)
     ISADevice *isadev = ISA_DEVICE(dev);
     VMPortState *s = VMPORT(dev);
 
-    memory_region_init_io(&s->io, &vmport_ops, s, "vmport", 1);
+    memory_region_init_io(&s->io, NULL, &vmport_ops, s, "vmport", 1);
     isa_register_ioport(isadev, &s->io, 0x5658);
 
     port_state = s;
diff --git a/hw/misc/zynq_slcr.c b/hw/misc/zynq_slcr.c
index 8418327261..d7c2d190ec 100644
--- a/hw/misc/zynq_slcr.c
+++ b/hw/misc/zynq_slcr.c
@@ -494,7 +494,7 @@ static int zynq_slcr_init(SysBusDevice *dev)
 {
     ZynqSLCRState *s = FROM_SYSBUS(ZynqSLCRState, dev);
 
-    memory_region_init_io(&s->iomem, &slcr_ops, s, "slcr", 0x1000);
+    memory_region_init_io(&s->iomem, NULL, &slcr_ops, s, "slcr", 0x1000);
     sysbus_init_mmio(dev, &s->iomem);
 
     return 0;