diff --git a/audio/audio.c b/audio/audio.c
index dbf0b96..ad51077 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -1901,7 +1901,7 @@ static void audio_init (void)
     }
 
     QLIST_INIT (&s->card_head);
-    vmstate_register (0, &vmstate_audio, s);
+    vmstate_register (NULL, 0, &vmstate_audio, s);
 }
 
 void AUD_register_card (const char *name, QEMUSoundCard *card)
diff --git a/block-migration.c b/block-migration.c
index 7d04d6d..5964291 100644
--- a/block-migration.c
+++ b/block-migration.c
@@ -638,6 +638,6 @@ void blk_mig_init(void)
     QSIMPLEQ_INIT(&block_mig_state.bmds_list);
     QSIMPLEQ_INIT(&block_mig_state.blk_list);
 
-    register_savevm_live("block", 0, 1, block_set_params, block_save_live,
+    register_savevm_live(NULL, "block", 0, 1, block_set_params, block_save_live,
                          NULL, block_load, &block_mig_state);
 }
diff --git a/exec.c b/exec.c
index 7f64384..b56b827 100644
--- a/exec.c
+++ b/exec.c
@@ -641,8 +641,8 @@ void cpu_exec_init(CPUState *env)
     cpu_list_unlock();
 #endif
 #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY)
-    vmstate_register(cpu_index, &vmstate_cpu_common, env);
-    register_savevm("cpu", cpu_index, CPU_SAVE_VERSION,
+    vmstate_register(NULL, cpu_index, &vmstate_cpu_common, env);
+    register_savevm(NULL, "cpu", cpu_index, CPU_SAVE_VERSION,
                     cpu_save, cpu_load, env);
 #endif
 }
diff --git a/hw/adb.c b/hw/adb.c
index 4fb7a62..99b30f6 100644
--- a/hw/adb.c
+++ b/hw/adb.c
@@ -305,7 +305,7 @@ void adb_kbd_init(ADBBusState *bus)
     d = adb_register_device(bus, ADB_KEYBOARD, adb_kbd_request,
                             adb_kbd_reset, s);
     qemu_add_kbd_event_handler(adb_kbd_put_keycode, d);
-    register_savevm("adb_kbd", -1, 1, adb_kbd_save,
+    register_savevm(NULL, "adb_kbd", -1, 1, adb_kbd_save,
                     adb_kbd_load, s);
 }
 
@@ -475,6 +475,6 @@ void adb_mouse_init(ADBBusState *bus)
     d = adb_register_device(bus, ADB_MOUSE, adb_mouse_request,
                             adb_mouse_reset, s);
     qemu_add_mouse_event_handler(adb_mouse_event, d, 0, "QEMU ADB Mouse");
-    register_savevm("adb_mouse", -1, 1, adb_mouse_save,
+    register_savevm(NULL, "adb_mouse", -1, 1, adb_mouse_save,
                     adb_mouse_load, s);
 }
diff --git a/hw/ads7846.c b/hw/ads7846.c
index 184b3dd..b3bbeaf 100644
--- a/hw/ads7846.c
+++ b/hw/ads7846.c
@@ -151,7 +151,7 @@ static int ads7846_init(SSISlave *dev)
 
     ads7846_int_update(s);
 
-    register_savevm("ads7846", -1, 0, ads7846_save, ads7846_load, s);
+    register_savevm(NULL, "ads7846", -1, 0, ads7846_save, ads7846_load, s);
     return 0;
 }
 
diff --git a/hw/apic.c b/hw/apic.c
index 7fbd79b..5c0268d 100644
--- a/hw/apic.c
+++ b/hw/apic.c
@@ -1011,7 +1011,7 @@ int apic_init(CPUState *env)
     }
     s->timer = qemu_new_timer(vm_clock, apic_timer, s);
 
-    vmstate_register(s->idx, &vmstate_apic, s);
+    vmstate_register(NULL, s->idx, &vmstate_apic, s);
     qemu_register_reset(apic_reset, s);
 
     local_apics[s->idx] = s;
diff --git a/hw/arm_gic.c b/hw/arm_gic.c
index c4afc6a..8286a28 100644
--- a/hw/arm_gic.c
+++ b/hw/arm_gic.c
@@ -744,5 +744,5 @@ static void gic_init(gic_state *s)
     s->iomemtype = cpu_register_io_memory(gic_dist_readfn,
                                           gic_dist_writefn, s);
     gic_reset(s);
-    register_savevm("arm_gic", -1, 1, gic_save, gic_load, s);
+    register_savevm(NULL, "arm_gic", -1, 1, gic_save, gic_load, s);
 }
diff --git a/hw/arm_timer.c b/hw/arm_timer.c
index 9073ffc..f009e9e 100644
--- a/hw/arm_timer.c
+++ b/hw/arm_timer.c
@@ -174,7 +174,7 @@ static arm_timer_state *arm_timer_init(uint32_t freq)
 
     bh = qemu_bh_new(arm_timer_tick, s);
     s->timer = ptimer_init(bh);
-    register_savevm("arm_timer", -1, 1, arm_timer_save, arm_timer_load, s);
+    register_savevm(NULL, "arm_timer", -1, 1, arm_timer_save, arm_timer_load, s);
     return s;
 }
 
@@ -271,7 +271,7 @@ static int sp804_init(SysBusDevice *dev)
     iomemtype = cpu_register_io_memory(sp804_readfn,
                                        sp804_writefn, s);
     sysbus_init_mmio(dev, 0x1000, iomemtype);
-    register_savevm("sp804", -1, 1, sp804_save, sp804_load, s);
+    register_savevm(&dev->qdev, "sp804", -1, 1, sp804_save, sp804_load, s);
     return 0;
 }
 
diff --git a/hw/armv7m_nvic.c b/hw/armv7m_nvic.c
index 9f09ef4..6c7ce01 100644
--- a/hw/armv7m_nvic.c
+++ b/hw/armv7m_nvic.c
@@ -397,7 +397,7 @@ static int armv7m_nvic_init(SysBusDevice *dev)
     gic_init(&s->gic);
     cpu_register_physical_memory(0xe000e000, 0x1000, s->gic.iomemtype);
     s->systick.timer = qemu_new_timer(vm_clock, systick_timer_tick, s);
-    register_savevm("armv7m_nvic", -1, 1, nvic_save, nvic_load, s);
+    register_savevm(&dev->qdev, "armv7m_nvic", -1, 1, nvic_save, nvic_load, s);
     return 0;
 }
 
diff --git a/hw/cirrus_vga.c b/hw/cirrus_vga.c
index ba48289..bbd4b08 100644
--- a/hw/cirrus_vga.c
+++ b/hw/cirrus_vga.c
@@ -3128,7 +3128,7 @@ void isa_cirrus_vga_init(void)
     s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
                                      s->vga.screen_dump, s->vga.text_update,
                                      &s->vga);
-    vmstate_register(0, &vmstate_cirrus_vga, s);
+    vmstate_register(NULL, 0, &vmstate_cirrus_vga, s);
     rom_add_vga(VGABIOS_CIRRUS_FILENAME);
     /* XXX ISA-LFB support */
 }
diff --git a/hw/cuda.c b/hw/cuda.c
index 50950d9..3f238b6 100644
--- a/hw/cuda.c
+++ b/hw/cuda.c
@@ -763,6 +763,6 @@ void cuda_init (int *cuda_mem_index, qemu_irq irq)
 
     s->adb_poll_timer = qemu_new_timer(vm_clock, cuda_adb_poll, s);
     *cuda_mem_index = cpu_register_io_memory(cuda_read, cuda_write, s);
-    register_savevm("cuda", -1, 1, cuda_save, cuda_load, s);
+    register_savevm(NULL, "cuda", -1, 1, cuda_save, cuda_load, s);
     qemu_register_reset(cuda_reset, s);
 }
diff --git a/hw/dma.c b/hw/dma.c
index 5b21521..8a7302a 100644
--- a/hw/dma.c
+++ b/hw/dma.c
@@ -548,8 +548,8 @@ void DMA_init(int high_page_enable, qemu_irq *cpu_request_exit)
               high_page_enable ? 0x480 : -1, cpu_request_exit);
     dma_init2(&dma_controllers[1], 0xc0, 1, 0x88,
               high_page_enable ? 0x488 : -1, cpu_request_exit);
-    vmstate_register (0, &vmstate_dma, &dma_controllers[0]);
-    vmstate_register (1, &vmstate_dma, &dma_controllers[1]);
+    vmstate_register (NULL, 0, &vmstate_dma, &dma_controllers[0]);
+    vmstate_register (NULL, 1, &vmstate_dma, &dma_controllers[1]);
 
     dma_bh = qemu_bh_new(DMA_run_bh, NULL);
 }
diff --git a/hw/eepro100.c b/hw/eepro100.c
index a74d834..92cfea7 100644
--- a/hw/eepro100.c
+++ b/hw/eepro100.c
@@ -1835,7 +1835,7 @@ static int pci_nic_uninit(PCIDevice *pci_dev)
     EEPRO100State *s = DO_UPCAST(EEPRO100State, dev, pci_dev);
 
     cpu_unregister_io_memory(s->mmio_index);
-    vmstate_unregister(s->vmstate, s);
+    vmstate_unregister(&pci_dev->qdev, s->vmstate, s);
     eeprom93xx_free(s->eeprom);
     qemu_del_vlan_client(&s->nic->nc);
     return 0;
@@ -1894,7 +1894,7 @@ static int e100_nic_init(PCIDevice *pci_dev)
     s->vmstate = qemu_malloc(sizeof(vmstate_eepro100));
     memcpy(s->vmstate, &vmstate_eepro100, sizeof(vmstate_eepro100));
     s->vmstate->name = s->nic->nc.model;
-    vmstate_register(-1, s->vmstate, s);
+    vmstate_register(&pci_dev->qdev, -1, s->vmstate, s);
 
     return 0;
 }
diff --git a/hw/eeprom93xx.c b/hw/eeprom93xx.c
index 30a3534..6ba546f 100644
--- a/hw/eeprom93xx.c
+++ b/hw/eeprom93xx.c
@@ -316,7 +316,7 @@ eeprom_t *eeprom93xx_new(uint16_t nwords)
     /* Output DO is tristate, read results in 1. */
     eeprom->eedo = 1;
     logout("eeprom = 0x%p, nwords = %u\n", eeprom, nwords);
-    vmstate_register(0, &vmstate_eeprom, eeprom);
+    vmstate_register(NULL, 0, &vmstate_eeprom, eeprom);
     return eeprom;
 }
 
@@ -324,7 +324,7 @@ void eeprom93xx_free(eeprom_t *eeprom)
 {
     /* Destroy EEPROM. */
     logout("eeprom = 0x%p\n", eeprom);
-    vmstate_unregister(&vmstate_eeprom, eeprom);
+    vmstate_unregister(NULL, &vmstate_eeprom, eeprom);
     qemu_free(eeprom);
 }
 
diff --git a/hw/fw_cfg.c b/hw/fw_cfg.c
index 22ebb50..ca8c538 100644
--- a/hw/fw_cfg.c
+++ b/hw/fw_cfg.c
@@ -352,7 +352,7 @@ FWCfgState *fw_cfg_init(uint32_t ctl_port, uint32_t data_port,
     fw_cfg_add_i16(s, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
     fw_cfg_add_i16(s, FW_CFG_BOOT_MENU, (uint16_t)boot_menu);
 
-    vmstate_register(-1, &vmstate_fw_cfg, s);
+    vmstate_register(NULL, -1, &vmstate_fw_cfg, s);
     qemu_register_reset(fw_cfg_reset, s);
 
     return s;
diff --git a/hw/g364fb.c b/hw/g364fb.c
index d1d2c12..beafd70 100644
--- a/hw/g364fb.c
+++ b/hw/g364fb.c
@@ -598,7 +598,7 @@ int g364fb_mm_init(target_phys_addr_t vram_base,
     s->irq = irq;
 
     qemu_register_reset(g364fb_reset, s);
-    register_savevm("g364fb", 0, 1, g364fb_save, g364fb_load, s);
+    register_savevm(NULL, "g364fb", 0, 1, g364fb_save, g364fb_load, s);
     g364fb_reset(s);
 
     s->ds = graphic_console_init(g364fb_update_display,
diff --git a/hw/grackle_pci.c b/hw/grackle_pci.c
index aa0c51b..0cf29dc 100644
--- a/hw/grackle_pci.c
+++ b/hw/grackle_pci.c
@@ -113,8 +113,8 @@ static int pci_grackle_init_device(SysBusDevice *dev)
     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 
-    register_savevm("grackle", 0, 1, pci_grackle_save, pci_grackle_load,
-                    &s->host_state);
+    register_savevm(&dev->qdev, "grackle", 0, 1, pci_grackle_save,
+                    pci_grackle_load, &s->host_state);
     qemu_register_reset(pci_grackle_reset, &s->host_state);
     return 0;
 }
diff --git a/hw/gt64xxx.c b/hw/gt64xxx.c
index 7691e1d..313c080 100644
--- a/hw/gt64xxx.c
+++ b/hw/gt64xxx.c
@@ -1146,7 +1146,8 @@ PCIBus *pci_gt64120_init(qemu_irq *pic)
 
     gt64120_reset(s);
 
-    register_savevm("GT64120 PCI Bus", 0, 1, gt64120_save, gt64120_load, d);
+    register_savevm(&d->qdev, "GT64120 PCI Bus", 0, 1,
+                    gt64120_save, gt64120_load, d);
 
     return s->pci->bus;
 }
diff --git a/hw/heathrow_pic.c b/hw/heathrow_pic.c
index 5e27021..cd86121 100644
--- a/hw/heathrow_pic.c
+++ b/hw/heathrow_pic.c
@@ -224,7 +224,7 @@ qemu_irq *heathrow_pic_init(int *pmem_index,
     s->irqs = irqs[0];
     *pmem_index = cpu_register_io_memory(pic_read, pic_write, s);
 
-    register_savevm("heathrow_pic", -1, 1, heathrow_pic_save,
+    register_savevm(NULL, "heathrow_pic", -1, 1, heathrow_pic_save,
                     heathrow_pic_load, s);
     qemu_register_reset(heathrow_pic_reset, s);
     return qemu_allocate_irqs(heathrow_pic_set_irq, s, 64);
diff --git a/hw/hpet.c b/hw/hpet.c
index 8729fb2..b2a48bb 100644
--- a/hw/hpet.c
+++ b/hw/hpet.c
@@ -577,7 +577,7 @@ void hpet_init(qemu_irq *irq) {
         HPETTimer *timer = &s->timer[i];
         timer->qemu_timer = qemu_new_timer(vm_clock, hpet_timer, timer);
     }
-    vmstate_register(-1, &vmstate_hpet, s);
+    vmstate_register(NULL, -1, &vmstate_hpet, s);
     qemu_register_reset(hpet_reset, s);
     /* HPET Area */
     iomemtype = cpu_register_io_memory(hpet_ram_read,
diff --git a/hw/hw.h b/hw/hw.h
index fc2d184..f7b2406 100644
--- a/hw/hw.h
+++ b/hw/hw.h
@@ -246,14 +246,16 @@ typedef int SaveLiveStateHandler(Monitor *mon, QEMUFile *f, int stage,
                                  void *opaque);
 typedef int LoadStateHandler(QEMUFile *f, void *opaque, int version_id);
 
-int register_savevm(const char *idstr,
+int register_savevm(DeviceState *dev,
+                    const char *idstr,
                     int instance_id,
                     int version_id,
                     SaveStateHandler *save_state,
                     LoadStateHandler *load_state,
                     void *opaque);
 
-int register_savevm_live(const char *idstr,
+int register_savevm_live(DeviceState *dev,
+                         const char *idstr,
                          int instance_id,
                          int version_id,
                          SaveSetParamsHandler *set_params,
@@ -262,7 +264,7 @@ int register_savevm_live(const char *idstr,
                          LoadStateHandler *load_state,
                          void *opaque);
 
-void unregister_savevm(const char *idstr, void *opaque);
+void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque);
 
 typedef void QEMUResetHandler(void *opaque);
 
@@ -756,11 +758,13 @@ extern int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
                               void *opaque, int version_id);
 extern void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
                                void *opaque);
-extern int vmstate_register(int instance_id, const VMStateDescription *vmsd,
-                            void *base);
-extern int vmstate_register_with_alias_id(int instance_id,
+extern int vmstate_register(DeviceState *dev, int instance_id,
+                            const VMStateDescription *vmsd, void *base);
+extern int vmstate_register_with_alias_id(DeviceState *dev,
+                                          int instance_id,
                                           const VMStateDescription *vmsd,
                                           void *base, int alias_id,
                                           int required_for_version);
-void vmstate_unregister(const VMStateDescription *vmsd, void *opaque);
+void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd,
+                        void *opaque);
 #endif
diff --git a/hw/i2c.c b/hw/i2c.c
index bee8e88..f80d12d 100644
--- a/hw/i2c.c
+++ b/hw/i2c.c
@@ -62,7 +62,7 @@ i2c_bus *i2c_init_bus(DeviceState *parent, const char *name)
     i2c_bus *bus;
 
     bus = FROM_QBUS(i2c_bus, qbus_create(&i2c_bus_info, parent, name));
-    vmstate_register(-1, &vmstate_i2c_bus, bus);
+    vmstate_register(NULL, -1, &vmstate_i2c_bus, bus);
     return bus;
 }
 
diff --git a/hw/i8254.c b/hw/i8254.c
index faaa884..06b225c 100644
--- a/hw/i8254.c
+++ b/hw/i8254.c
@@ -508,7 +508,7 @@ PITState *pit_init(int base, qemu_irq irq)
     s->irq_timer = qemu_new_timer(vm_clock, pit_irq_timer, s);
     s->irq = irq;
 
-    vmstate_register(base, &vmstate_pit, pit);
+    vmstate_register(NULL, base, &vmstate_pit, pit);
     qemu_register_reset(pit_reset, pit);
     register_ioport_write(base, 4, 1, pit_ioport_write, pit);
     register_ioport_read(base, 3, 1, pit_ioport_read, pit);
diff --git a/hw/i8259.c b/hw/i8259.c
index a995280..a8dbee6 100644
--- a/hw/i8259.c
+++ b/hw/i8259.c
@@ -483,7 +483,7 @@ static void pic_init1(int io_addr, int elcr_addr, PicState *s)
         register_ioport_write(elcr_addr, 1, 1, elcr_ioport_write, s);
         register_ioport_read(elcr_addr, 1, 1, elcr_ioport_read, s);
     }
-    vmstate_register(io_addr, &vmstate_pic, s);
+    vmstate_register(NULL, io_addr, &vmstate_pic, s);
     qemu_register_reset(pic_reset, s);
 }
 
diff --git a/hw/ide/cmd646.c b/hw/ide/cmd646.c
index cdcc9bf..aff8655 100644
--- a/hw/ide/cmd646.c
+++ b/hw/ide/cmd646.c
@@ -263,7 +263,7 @@ static int pci_cmd646_ide_initfn(PCIDevice *dev)
     ide_init2(&d->bus[0], NULL, NULL, irq[0]);
     ide_init2(&d->bus[1], NULL, NULL, irq[1]);
 
-    vmstate_register(0, &vmstate_ide_pci, d);
+    vmstate_register(&dev->qdev, 0, &vmstate_ide_pci, d);
     qemu_register_reset(cmd646_reset, d);
     return 0;
 }
diff --git a/hw/ide/isa.c b/hw/ide/isa.c
index dff7c79..f1d220b 100644
--- a/hw/ide/isa.c
+++ b/hw/ide/isa.c
@@ -71,7 +71,7 @@ static int isa_ide_initfn(ISADevice *dev)
     ide_init_ioport(&s->bus, s->iobase, s->iobase2);
     isa_init_irq(dev, &s->irq, s->isairq);
     ide_init2(&s->bus, NULL, NULL, s->irq);
-    vmstate_register(0, &vmstate_ide_isa, s);
+    vmstate_register(&dev->qdev, 0, &vmstate_ide_isa, s);
     return 0;
 };
 
diff --git a/hw/ide/macio.c b/hw/ide/macio.c
index 639f3f6..2574942 100644
--- a/hw/ide/macio.c
+++ b/hw/ide/macio.c
@@ -321,7 +321,7 @@ int pmac_ide_init (DriveInfo **hd_table, qemu_irq irq,
 
     pmac_ide_memory = cpu_register_io_memory(pmac_ide_read,
                                              pmac_ide_write, d);
-    vmstate_register(0, &vmstate_pmac, d);
+    vmstate_register(NULL, 0, &vmstate_pmac, d);
     qemu_register_reset(pmac_ide_reset, d);
 
     return pmac_ide_memory;
diff --git a/hw/ide/microdrive.c b/hw/ide/microdrive.c
index bfdb8c8..30c8aa4 100644
--- a/hw/ide/microdrive.c
+++ b/hw/ide/microdrive.c
@@ -544,7 +544,7 @@ PCMCIACardState *dscm1xxxx_init(DriveInfo *bdrv)
     md->bus.ifs[0].mdata_size = METADATA_SIZE;
     md->bus.ifs[0].mdata_storage = (uint8_t *) qemu_mallocz(METADATA_SIZE);
 
-    vmstate_register(-1, &vmstate_microdrive, md);
+    vmstate_register(NULL, -1, &vmstate_microdrive, md);
 
     return &md->card;
 }
diff --git a/hw/ide/mmio.c b/hw/ide/mmio.c
index cca883f..5909f21 100644
--- a/hw/ide/mmio.c
+++ b/hw/ide/mmio.c
@@ -133,7 +133,7 @@ void mmio_ide_init (target_phys_addr_t membase, target_phys_addr_t membase2,
     mem2 = cpu_register_io_memory(mmio_ide_status, mmio_ide_cmd, s);
     cpu_register_physical_memory(membase, 16 << shift, mem1);
     cpu_register_physical_memory(membase2, 2 << shift, mem2);
-    vmstate_register(0, &vmstate_ide_mmio, s);
+    vmstate_register(NULL, 0, &vmstate_ide_mmio, s);
     qemu_register_reset(mmio_ide_reset, s);
 }
 
diff --git a/hw/ide/piix.c b/hw/ide/piix.c
index 4fa3851..431a9ea 100644
--- a/hw/ide/piix.c
+++ b/hw/ide/piix.c
@@ -128,7 +128,7 @@ static int pci_piix_ide_initfn(PCIIDEState *d)
 
     pci_register_bar(&d->dev, 4, 0x10, PCI_BASE_ADDRESS_SPACE_IO, bmdma_map);
 
-    vmstate_register(0, &vmstate_ide_pci, d);
+    vmstate_register(&d->dev.qdev, 0, &vmstate_ide_pci, d);
 
     ide_bus_new(&d->bus[0], &d->dev.qdev);
     ide_bus_new(&d->bus[1], &d->dev.qdev);
diff --git a/hw/ioapic.c b/hw/ioapic.c
index 335da6e..2670113 100644
--- a/hw/ioapic.c
+++ b/hw/ioapic.c
@@ -244,7 +244,7 @@ qemu_irq *ioapic_init(void)
                                        ioapic_mem_write, s);
     cpu_register_physical_memory(0xfec00000, 0x1000, io_memory);
 
-    vmstate_register(0, &vmstate_ioapic, s);
+    vmstate_register(NULL, 0, &vmstate_ioapic, s);
     qemu_register_reset(ioapic_reset, s);
     irq = qemu_allocate_irqs(ioapic_set_irq, s, IOAPIC_NUM_PINS);
 
diff --git a/hw/m48t59.c b/hw/m48t59.c
index c3d7b3a..c7492a6 100644
--- a/hw/m48t59.c
+++ b/hw/m48t59.c
@@ -694,7 +694,7 @@ static void m48t59_init_common(M48t59State *s)
     }
     qemu_get_timedate(&s->alarm, 0);
 
-    register_savevm("m48t59", -1, 1, m48t59_save, m48t59_load, s);
+    register_savevm(NULL, "m48t59", -1, 1, m48t59_save, m48t59_load, s);
 }
 
 static int m48t59_init_isa1(ISADevice *dev)
diff --git a/hw/mac_dbdma.c b/hw/mac_dbdma.c
index e2697d3..03d2d16 100644
--- a/hw/mac_dbdma.c
+++ b/hw/mac_dbdma.c
@@ -845,7 +845,7 @@ void* DBDMA_init (int *dbdma_mem_index)
     s = qemu_mallocz(sizeof(DBDMA_channel) * DBDMA_CHANNELS);
 
     *dbdma_mem_index = cpu_register_io_memory(dbdma_read, dbdma_write, s);
-    register_savevm("dbdma", -1, 1, dbdma_save, dbdma_load, s);
+    register_savevm(NULL, "dbdma", -1, 1, dbdma_save, dbdma_load, s);
     qemu_register_reset(dbdma_reset, s);
 
     dbdma_bh = qemu_bh_new(DBDMA_run_bh, s);
diff --git a/hw/mac_nvram.c b/hw/mac_nvram.c
index f28db6b..a834935 100644
--- a/hw/mac_nvram.c
+++ b/hw/mac_nvram.c
@@ -140,7 +140,7 @@ MacIONVRAMState *macio_nvram_init (int *mem_index, target_phys_addr_t size,
 
     s->mem_index = cpu_register_io_memory(nvram_read, nvram_write, s);
     *mem_index = s->mem_index;
-    register_savevm("macio_nvram", -1, 1, macio_nvram_save, macio_nvram_load,
+    register_savevm(NULL, "macio_nvram", -1, 1, macio_nvram_save, macio_nvram_load,
                     s);
     qemu_register_reset(macio_nvram_reset, s);
 
diff --git a/hw/max111x.c b/hw/max111x.c
index bd656bb..2844665 100644
--- a/hw/max111x.c
+++ b/hw/max111x.c
@@ -143,7 +143,8 @@ static int max111x_init(SSISlave *dev, int inputs)
     s->input[7] = 0x80;
     s->com = 0;
 
-    register_savevm("max111x", -1, 0, max111x_save, max111x_load, s);
+    register_savevm(&dev->qdev, "max111x", -1, 0,
+                    max111x_save, max111x_load, s);
     return 0;
 }
 
diff --git a/hw/mipsnet.c b/hw/mipsnet.c
index a066f63..a95b3ce 100644
--- a/hw/mipsnet.c
+++ b/hw/mipsnet.c
@@ -239,7 +239,7 @@ static void mipsnet_cleanup(VLANClientState *nc)
 {
     MIPSnetState *s = DO_UPCAST(NICState, nc, nc)->opaque;
 
-    unregister_savevm("mipsnet", s);
+    unregister_savevm(NULL, "mipsnet", s);
 
     isa_unassign_ioport(s->io_base, 36);
 
@@ -284,5 +284,5 @@ void mipsnet_init (int base, qemu_irq irq, NICInfo *nd)
     }
 
     mipsnet_reset(s);
-    register_savevm("mipsnet", 0, 0, mipsnet_save, mipsnet_load, s);
+    register_savevm(NULL, "mipsnet", 0, 0, mipsnet_save, mipsnet_load, s);
 }
diff --git a/hw/mst_fpga.c b/hw/mst_fpga.c
index 1b6cb77..53c3610 100644
--- a/hw/mst_fpga.c
+++ b/hw/mst_fpga.c
@@ -234,6 +234,6 @@ qemu_irq *mst_irq_init(PXA2xxState *cpu, uint32_t base, int irq)
 	iomemtype = cpu_register_io_memory(mst_fpga_readfn,
 		mst_fpga_writefn, s);
 	cpu_register_physical_memory(base, 0x00100000, iomemtype);
-	register_savevm("mainstone_fpga", 0, 0, mst_fpga_save, mst_fpga_load, s);
+	register_savevm(NULL, "mainstone_fpga", 0, 0, mst_fpga_save, mst_fpga_load, s);
 	return qi;
 }
diff --git a/hw/nand.c b/hw/nand.c
index 40d5a6a..bc0ee98 100644
--- a/hw/nand.c
+++ b/hw/nand.c
@@ -503,7 +503,7 @@ NANDFlashState *nand_init(int manf_id, int chip_id)
        is used.  */
     s->ioaddr = s->io;
 
-    register_savevm("nand", -1, 0, nand_save, nand_load, s);
+    register_savevm(NULL, "nand", -1, 0, nand_save, nand_load, s);
 
     return s;
 }
diff --git a/hw/openpic.c b/hw/openpic.c
index ac21993..2b4cb00 100644
--- a/hw/openpic.c
+++ b/hw/openpic.c
@@ -1234,7 +1234,8 @@ qemu_irq *openpic_init (PCIBus *bus, int *pmem_index, int nb_cpus,
     opp->irq_out = irq_out;
     opp->need_swap = 1;
 
-    register_savevm("openpic", 0, 2, openpic_save, openpic_load, opp);
+    register_savevm(&opp->pci_dev.qdev, "openpic", 0, 2,
+                    openpic_save, openpic_load, opp);
     qemu_register_reset(openpic_reset, opp);
 
     opp->irq_raise = openpic_irq_raise;
@@ -1692,7 +1693,7 @@ qemu_irq *mpic_init (target_phys_addr_t base, int nb_cpus,
     mpp->irq_raise = mpic_irq_raise;
     mpp->reset = mpic_reset;
 
-    register_savevm("mpic", 0, 2, openpic_save, openpic_load, mpp);
+    register_savevm(NULL, "mpic", 0, 2, openpic_save, openpic_load, mpp);
     qemu_register_reset(mpic_reset, mpp);
 
     return qemu_allocate_irqs(openpic_set_irq, mpp, mpp->max_irq);
diff --git a/hw/pci.c b/hw/pci.c
index cbbd1dd..e81cb30 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -230,7 +230,7 @@ void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent,
     QLIST_INIT(&bus->child);
     pci_host_bus_register(0, bus); /* for now only pci domain 0 is supported */
 
-    vmstate_register(-1, &vmstate_pcibus, bus);
+    vmstate_register(NULL, -1, &vmstate_pcibus, bus);
     qemu_register_reset(pci_bus_reset, bus);
 }
 
diff --git a/hw/pckbd.c b/hw/pckbd.c
index 3812284..0533b1d 100644
--- a/hw/pckbd.c
+++ b/hw/pckbd.c
@@ -418,7 +418,7 @@ void i8042_mm_init(qemu_irq kbd_irq, qemu_irq mouse_irq,
     s->irq_mouse = mouse_irq;
     s->mask = mask;
 
-    vmstate_register(0, &vmstate_kbd, s);
+    vmstate_register(NULL, 0, &vmstate_kbd, s);
     s_io_memory = cpu_register_io_memory(kbd_mm_read, kbd_mm_write, s);
     cpu_register_physical_memory(base, size, s_io_memory);
 
diff --git a/hw/piix4.c b/hw/piix4.c
index f75951b..6f08c5a 100644
--- a/hw/piix4.c
+++ b/hw/piix4.c
@@ -87,7 +87,7 @@ static int piix4_initfn(PCIDevice *d)
     uint8_t *pci_conf;
 
     isa_bus_new(&d->qdev);
-    register_savevm("PIIX4", 0, 2, piix_save, piix_load, d);
+    register_savevm(&d->qdev, "PIIX4", 0, 2, piix_save, piix_load, d);
 
     pci_conf = d->config;
     pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_INTEL);
diff --git a/hw/pl011.c b/hw/pl011.c
index 81de91e..02cf84a 100644
--- a/hw/pl011.c
+++ b/hw/pl011.c
@@ -306,7 +306,7 @@ static int pl011_init(SysBusDevice *dev, const unsigned char *id)
         qemu_chr_add_handlers(s->chr, pl011_can_receive, pl011_receive,
                               pl011_event, s);
     }
-    register_savevm("pl011_uart", -1, 1, pl011_save, pl011_load, s);
+    register_savevm(&dev->qdev, "pl011_uart", -1, 1, pl011_save, pl011_load, s);
     return 0;
 }
 
diff --git a/hw/pl022.c b/hw/pl022.c
index c2e2dda..d7862bc 100644
--- a/hw/pl022.c
+++ b/hw/pl022.c
@@ -299,7 +299,7 @@ static int pl022_init(SysBusDevice *dev)
     sysbus_init_irq(dev, &s->irq);
     s->ssi = ssi_create_bus(&dev->qdev, "ssi");
     pl022_reset(s);
-    register_savevm("pl022_ssp", -1, 1, pl022_save, pl022_load, s);
+    register_savevm(&dev->qdev, "pl022_ssp", -1, 1, pl022_save, pl022_load, s);
     return 0;
 }
 
diff --git a/hw/pl061.c b/hw/pl061.c
index 7b1b636..e4505f5 100644
--- a/hw/pl061.c
+++ b/hw/pl061.c
@@ -303,7 +303,7 @@ static int pl061_init(SysBusDevice *dev)
     qdev_init_gpio_in(&dev->qdev, pl061_set_irq, 8);
     qdev_init_gpio_out(&dev->qdev, s->out, 8);
     pl061_reset(s);
-    register_savevm("pl061_gpio", -1, 1, pl061_save, pl061_load, s);
+    register_savevm(&dev->qdev, "pl061_gpio", -1, 1, pl061_save, pl061_load, s);
     return 0;
 }
 
diff --git a/hw/ppc4xx_pci.c b/hw/ppc4xx_pci.c
index c9e3279..6e437e7 100644
--- a/hw/ppc4xx_pci.c
+++ b/hw/ppc4xx_pci.c
@@ -392,8 +392,8 @@ PCIBus *ppc4xx_pci_init(CPUState *env, qemu_irq pci_irqs[4],
     qemu_register_reset(ppc4xx_pci_reset, controller);
 
     /* XXX load/save code not tested. */
-    register_savevm("ppc4xx_pci", ppc4xx_pci_id++, 1,
-                    ppc4xx_pci_save, ppc4xx_pci_load, controller);
+    register_savevm(&controller->pci_dev->qdev, "ppc4xx_pci", ppc4xx_pci_id++,
+                    1, ppc4xx_pci_save, ppc4xx_pci_load, controller);
 
     return controller->pci_state.bus;
 
diff --git a/hw/ppce500_pci.c b/hw/ppce500_pci.c
index 336d284..5358f82 100644
--- a/hw/ppce500_pci.c
+++ b/hw/ppce500_pci.c
@@ -310,8 +310,8 @@ PCIBus *ppce500_pci_init(qemu_irq pci_irqs[4], target_phys_addr_t registers)
                                    PCIE500_REG_SIZE, index);
 
     /* XXX load/save code not tested. */
-    register_savevm("ppce500_pci", ppce500_pci_id++, 1,
-                    ppce500_pci_save, ppce500_pci_load, controller);
+    register_savevm(&d->qdev, "ppce500_pci", ppce500_pci_id++,
+                    1, ppce500_pci_save, ppce500_pci_load, controller);
 
     return controller->pci_state.bus;
 
diff --git a/hw/ps2.c b/hw/ps2.c
index f0b206a..762bb00 100644
--- a/hw/ps2.c
+++ b/hw/ps2.c
@@ -595,7 +595,7 @@ void *ps2_kbd_init(void (*update_irq)(void *, int), void *update_arg)
     s->common.update_irq = update_irq;
     s->common.update_arg = update_arg;
     s->scancode_set = 2;
-    vmstate_register(0, &vmstate_ps2_keyboard, s);
+    vmstate_register(NULL, 0, &vmstate_ps2_keyboard, s);
     qemu_add_kbd_event_handler(ps2_put_keycode, s);
     qemu_register_reset(ps2_kbd_reset, s);
     return s;
@@ -607,7 +607,7 @@ void *ps2_mouse_init(void (*update_irq)(void *, int), void *update_arg)
 
     s->common.update_irq = update_irq;
     s->common.update_arg = update_arg;
-    vmstate_register(0, &vmstate_ps2_mouse, s);
+    vmstate_register(NULL, 0, &vmstate_ps2_mouse, s);
     qemu_add_mouse_event_handler(ps2_mouse_event, s, 0, "QEMU PS/2 Mouse");
     qemu_register_reset(ps2_mouse_reset, s);
     return s;
diff --git a/hw/pxa2xx.c b/hw/pxa2xx.c
index 9095386..2ea363c 100644
--- a/hw/pxa2xx.c
+++ b/hw/pxa2xx.c
@@ -860,7 +860,7 @@ static int pxa2xx_ssp_init(SysBusDevice *dev)
     iomemtype = cpu_register_io_memory(pxa2xx_ssp_readfn,
                                        pxa2xx_ssp_writefn, s);
     sysbus_init_mmio(dev, 0x1000, iomemtype);
-    register_savevm("pxa2xx_ssp", -1, 0,
+    register_savevm(&dev->qdev, "pxa2xx_ssp", -1, 0,
                     pxa2xx_ssp_save, pxa2xx_ssp_load, s);
 
     s->bus = ssi_create_bus(&dev->qdev, "ssi");
@@ -1515,7 +1515,7 @@ PXA2xxI2CState *pxa2xx_i2c_init(target_phys_addr_t base,
     cpu_register_physical_memory(base & ~region_size,
                     region_size + 1, iomemtype);
 
-    vmstate_register(base, &vmstate_pxa2xx_i2c, s);
+    vmstate_register(NULL, base, &vmstate_pxa2xx_i2c, s);
 
     return s;
 }
@@ -1751,7 +1751,7 @@ static PXA2xxI2SState *pxa2xx_i2s_init(target_phys_addr_t base,
                     pxa2xx_i2s_writefn, s);
     cpu_register_physical_memory(base, 0x100000, iomemtype);
 
-    register_savevm("pxa2xx_i2s", base, 0,
+    register_savevm(NULL, "pxa2xx_i2s", base, 0,
                     pxa2xx_i2s_save, pxa2xx_i2s_load, s);
 
     return s;
@@ -2014,7 +2014,7 @@ static PXA2xxFIrState *pxa2xx_fir_init(target_phys_addr_t base,
         qemu_chr_add_handlers(chr, pxa2xx_fir_is_empty,
                         pxa2xx_fir_rx, pxa2xx_fir_event, s);
 
-    register_savevm("pxa2xx_fir", 0, 0, pxa2xx_fir_save, pxa2xx_fir_load, s);
+    register_savevm(NULL, "pxa2xx_fir", 0, 0, pxa2xx_fir_save, pxa2xx_fir_load, s);
 
     return s;
 }
@@ -2099,7 +2099,7 @@ PXA2xxState *pxa270_init(unsigned int sdram_size, const char *revision)
     iomemtype = cpu_register_io_memory(pxa2xx_cm_readfn,
                     pxa2xx_cm_writefn, s);
     cpu_register_physical_memory(s->cm_base, 0x1000, iomemtype);
-    register_savevm("pxa2xx_cm", 0, 0, pxa2xx_cm_save, pxa2xx_cm_load, s);
+    register_savevm(NULL, "pxa2xx_cm", 0, 0, pxa2xx_cm_save, pxa2xx_cm_load, s);
 
     cpu_arm_set_cp_io(s->env, 14, pxa2xx_cp14_read, pxa2xx_cp14_write, s);
 
@@ -2110,13 +2110,13 @@ PXA2xxState *pxa270_init(unsigned int sdram_size, const char *revision)
     iomemtype = cpu_register_io_memory(pxa2xx_mm_readfn,
                     pxa2xx_mm_writefn, s);
     cpu_register_physical_memory(s->mm_base, 0x1000, iomemtype);
-    register_savevm("pxa2xx_mm", 0, 0, pxa2xx_mm_save, pxa2xx_mm_load, s);
+    register_savevm(NULL, "pxa2xx_mm", 0, 0, pxa2xx_mm_save, pxa2xx_mm_load, s);
 
     s->pm_base = 0x40f00000;
     iomemtype = cpu_register_io_memory(pxa2xx_pm_readfn,
                     pxa2xx_pm_writefn, s);
     cpu_register_physical_memory(s->pm_base, 0x100, iomemtype);
-    register_savevm("pxa2xx_pm", 0, 0, pxa2xx_pm_save, pxa2xx_pm_load, s);
+    register_savevm(NULL, "pxa2xx_pm", 0, 0, pxa2xx_pm_save, pxa2xx_pm_load, s);
 
     for (i = 0; pxa27x_ssp[i].io_base; i ++);
     s->ssp = (SSIBus **)qemu_mallocz(sizeof(SSIBus *) * i);
@@ -2140,7 +2140,7 @@ PXA2xxState *pxa270_init(unsigned int sdram_size, const char *revision)
                     pxa2xx_rtc_writefn, s);
     cpu_register_physical_memory(s->rtc_base, 0x1000, iomemtype);
     pxa2xx_rtc_init(s);
-    register_savevm("pxa2xx_rtc", 0, 0, pxa2xx_rtc_save, pxa2xx_rtc_load, s);
+    register_savevm(NULL, "pxa2xx_rtc", 0, 0, pxa2xx_rtc_save, pxa2xx_rtc_load, s);
 
     s->i2c[0] = pxa2xx_i2c_init(0x40301600, s->pic[PXA2XX_PIC_I2C], 0xffff);
     s->i2c[1] = pxa2xx_i2c_init(0x40f00100, s->pic[PXA2XX_PIC_PWRI2C], 0xff);
@@ -2219,7 +2219,7 @@ PXA2xxState *pxa255_init(unsigned int sdram_size)
     iomemtype = cpu_register_io_memory(pxa2xx_cm_readfn,
                     pxa2xx_cm_writefn, s);
     cpu_register_physical_memory(s->cm_base, 0x1000, iomemtype);
-    register_savevm("pxa2xx_cm", 0, 0, pxa2xx_cm_save, pxa2xx_cm_load, s);
+    register_savevm(NULL, "pxa2xx_cm", 0, 0, pxa2xx_cm_save, pxa2xx_cm_load, s);
 
     cpu_arm_set_cp_io(s->env, 14, pxa2xx_cp14_read, pxa2xx_cp14_write, s);
 
@@ -2230,13 +2230,13 @@ PXA2xxState *pxa255_init(unsigned int sdram_size)
     iomemtype = cpu_register_io_memory(pxa2xx_mm_readfn,
                     pxa2xx_mm_writefn, s);
     cpu_register_physical_memory(s->mm_base, 0x1000, iomemtype);
-    register_savevm("pxa2xx_mm", 0, 0, pxa2xx_mm_save, pxa2xx_mm_load, s);
+    register_savevm(NULL, "pxa2xx_mm", 0, 0, pxa2xx_mm_save, pxa2xx_mm_load, s);
 
     s->pm_base = 0x40f00000;
     iomemtype = cpu_register_io_memory(pxa2xx_pm_readfn,
                     pxa2xx_pm_writefn, s);
     cpu_register_physical_memory(s->pm_base, 0x100, iomemtype);
-    register_savevm("pxa2xx_pm", 0, 0, pxa2xx_pm_save, pxa2xx_pm_load, s);
+    register_savevm(NULL, "pxa2xx_pm", 0, 0, pxa2xx_pm_save, pxa2xx_pm_load, s);
 
     for (i = 0; pxa255_ssp[i].io_base; i ++);
     s->ssp = (SSIBus **)qemu_mallocz(sizeof(SSIBus *) * i);
@@ -2260,7 +2260,7 @@ PXA2xxState *pxa255_init(unsigned int sdram_size)
                     pxa2xx_rtc_writefn, s);
     cpu_register_physical_memory(s->rtc_base, 0x1000, iomemtype);
     pxa2xx_rtc_init(s);
-    register_savevm("pxa2xx_rtc", 0, 0, pxa2xx_rtc_save, pxa2xx_rtc_load, s);
+    register_savevm(NULL, "pxa2xx_rtc", 0, 0, pxa2xx_rtc_save, pxa2xx_rtc_load, s);
 
     s->i2c[0] = pxa2xx_i2c_init(0x40301600, s->pic[PXA2XX_PIC_I2C], 0xffff);
     s->i2c[1] = pxa2xx_i2c_init(0x40f00100, s->pic[PXA2XX_PIC_PWRI2C], 0xff);
diff --git a/hw/pxa2xx_dma.c b/hw/pxa2xx_dma.c
index 66c2c30..9c479df 100644
--- a/hw/pxa2xx_dma.c
+++ b/hw/pxa2xx_dma.c
@@ -507,7 +507,7 @@ static PXA2xxDMAState *pxa2xx_dma_init(target_phys_addr_t base,
                     pxa2xx_dma_writefn, s);
     cpu_register_physical_memory(base, 0x00010000, iomemtype);
 
-    register_savevm("pxa2xx_dma", 0, 0, pxa2xx_dma_save, pxa2xx_dma_load, s);
+    register_savevm(NULL, "pxa2xx_dma", 0, 0, pxa2xx_dma_save, pxa2xx_dma_load, s);
 
     return s;
 }
diff --git a/hw/pxa2xx_gpio.c b/hw/pxa2xx_gpio.c
index f354f4b..2abcb65 100644
--- a/hw/pxa2xx_gpio.c
+++ b/hw/pxa2xx_gpio.c
@@ -312,7 +312,7 @@ PXA2xxGPIOInfo *pxa2xx_gpio_init(target_phys_addr_t base,
                     pxa2xx_gpio_writefn, s);
     cpu_register_physical_memory(base, 0x00001000, iomemtype);
 
-    register_savevm("pxa2xx_gpio", 0, 0,
+    register_savevm(NULL, "pxa2xx_gpio", 0, 0,
                     pxa2xx_gpio_save, pxa2xx_gpio_load, s);
 
     return s;
diff --git a/hw/pxa2xx_keypad.c b/hw/pxa2xx_keypad.c
index 060df58..dfa8945 100644
--- a/hw/pxa2xx_keypad.c
+++ b/hw/pxa2xx_keypad.c
@@ -317,7 +317,7 @@ PXA2xxKeyPadState *pxa27x_keypad_init(target_phys_addr_t base,
                     pxa2xx_keypad_writefn, s);
     cpu_register_physical_memory(base, 0x00100000, iomemtype);
 
-    register_savevm("pxa2xx_keypad", 0, 0,
+    register_savevm(NULL, "pxa2xx_keypad", 0, 0,
                     pxa2xx_keypad_save, pxa2xx_keypad_load, s);
 
     return s;
diff --git a/hw/pxa2xx_lcd.c b/hw/pxa2xx_lcd.c
index 930299a..111a0dc 100644
--- a/hw/pxa2xx_lcd.c
+++ b/hw/pxa2xx_lcd.c
@@ -970,7 +970,7 @@ PXA2xxLCDState *pxa2xx_lcdc_init(target_phys_addr_t base, qemu_irq irq)
         exit(1);
     }
 
-    register_savevm("pxa2xx_lcdc", 0, 0,
+    register_savevm(NULL, "pxa2xx_lcdc", 0, 0,
                     pxa2xx_lcdc_save, pxa2xx_lcdc_load, s);
 
     return s;
diff --git a/hw/pxa2xx_mmci.c b/hw/pxa2xx_mmci.c
index a415349..ca98660 100644
--- a/hw/pxa2xx_mmci.c
+++ b/hw/pxa2xx_mmci.c
@@ -534,7 +534,7 @@ PXA2xxMMCIState *pxa2xx_mmci_init(target_phys_addr_t base,
     /* Instantiate the actual storage */
     s->card = sd_init(bd, 0);
 
-    register_savevm("pxa2xx_mmci", 0, 0,
+    register_savevm(NULL, "pxa2xx_mmci", 0, 0,
                     pxa2xx_mmci_save, pxa2xx_mmci_load, s);
 
     return s;
diff --git a/hw/pxa2xx_pic.c b/hw/pxa2xx_pic.c
index 0a98342..353d885 100644
--- a/hw/pxa2xx_pic.c
+++ b/hw/pxa2xx_pic.c
@@ -306,7 +306,7 @@ qemu_irq *pxa2xx_pic_init(target_phys_addr_t base, CPUState *env)
     /* Enable IC coprocessor access.  */
     cpu_arm_set_cp_io(env, 6, pxa2xx_pic_cp_read, pxa2xx_pic_cp_write, s);
 
-    register_savevm("pxa2xx_pic", 0, 0, pxa2xx_pic_save, pxa2xx_pic_load, s);
+    register_savevm(NULL, "pxa2xx_pic", 0, 0, pxa2xx_pic_save, pxa2xx_pic_load, s);
 
     return qi;
 }
diff --git a/hw/pxa2xx_timer.c b/hw/pxa2xx_timer.c
index d992cc3..0f0ffd3 100644
--- a/hw/pxa2xx_timer.c
+++ b/hw/pxa2xx_timer.c
@@ -455,7 +455,7 @@ static pxa2xx_timer_info *pxa2xx_timer_init(target_phys_addr_t base,
                     pxa2xx_timer_writefn, s);
     cpu_register_physical_memory(base, 0x00001000, iomemtype);
 
-    register_savevm("pxa2xx_timer", 0, 0,
+    register_savevm(NULL, "pxa2xx_timer", 0, 0,
                     pxa2xx_timer_save, pxa2xx_timer_load, s);
 
     return s;
diff --git a/hw/qdev.c b/hw/qdev.c
index dea44fe..a81c1e2 100644
--- a/hw/qdev.c
+++ b/hw/qdev.c
@@ -337,7 +337,7 @@ int qdev_init(DeviceState *dev)
     }
     qemu_register_reset(qdev_reset, dev);
     if (dev->info->vmsd) {
-        vmstate_register_with_alias_id(-1, dev->info->vmsd, dev,
+        vmstate_register_with_alias_id(dev, -1, dev->info->vmsd, dev,
                                        dev->instance_id_alias,
                                        dev->alias_required_for_version);
     }
@@ -398,7 +398,7 @@ void qdev_free(DeviceState *dev)
             qbus_free(bus);
         }
         if (dev->info->vmsd)
-            vmstate_unregister(dev->info->vmsd, dev);
+            vmstate_unregister(dev, dev->info->vmsd, dev);
         if (dev->info->exit)
             dev->info->exit(dev);
         if (dev->opts)
diff --git a/hw/rc4030.c b/hw/rc4030.c
index 2a8233a..2231373 100644
--- a/hw/rc4030.c
+++ b/hw/rc4030.c
@@ -813,7 +813,7 @@ void *rc4030_init(qemu_irq timer, qemu_irq jazz_bus,
     s->jazz_bus_irq = jazz_bus;
 
     qemu_register_reset(rc4030_reset, s);
-    register_savevm("rc4030", 0, 2, rc4030_save, rc4030_load, s);
+    register_savevm(NULL, "rc4030", 0, 2, rc4030_save, rc4030_load, s);
     rc4030_reset(s);
 
     s_chipset = cpu_register_io_memory(rc4030_read, rc4030_write, s);
diff --git a/hw/serial.c b/hw/serial.c
index 9102edb..09e3489 100644
--- a/hw/serial.c
+++ b/hw/serial.c
@@ -812,7 +812,7 @@ SerialState *serial_init(int base, qemu_irq irq, int baudbase,
     s->chr = chr;
     serial_init_core(s);
 
-    vmstate_register(base, &vmstate_serial, s);
+    vmstate_register(NULL, base, &vmstate_serial, s);
 
     register_ioport_write(base, 8, 1, serial_ioport_write, s);
     register_ioport_read(base, 8, 1, serial_ioport_read, s);
@@ -947,7 +947,7 @@ SerialState *serial_mm_init (target_phys_addr_t base, int it_shift,
     s->chr = chr;
 
     serial_init_core(s);
-    vmstate_register(base, &vmstate_serial, s);
+    vmstate_register(NULL, base, &vmstate_serial, s);
 
     if (ioregister) {
         if (be) {
diff --git a/hw/spitz.c b/hw/spitz.c
index 4f82e24..943933f 100644
--- a/hw/spitz.c
+++ b/hw/spitz.c
@@ -178,7 +178,7 @@ static void sl_flash_register(PXA2xxState *cpu, int size)
                     sl_writefn, s);
     cpu_register_physical_memory(FLASH_BASE, 0x40, iomemtype);
 
-    register_savevm("sl_flash", 0, 0, sl_save, sl_load, s);
+    register_savevm(NULL, "sl_flash", 0, 0, sl_save, sl_load, s);
 }
 
 /* Spitz Keyboard */
@@ -508,7 +508,7 @@ static void spitz_keyboard_register(PXA2xxState *cpu)
     spitz_keyboard_pre_map(s);
     qemu_add_kbd_event_handler((QEMUPutKBDEvent *) spitz_keyboard_handler, s);
 
-    register_savevm("spitz_keyboard", 0, 0,
+    register_savevm(NULL, "spitz_keyboard", 0, 0,
                     spitz_keyboard_save, spitz_keyboard_load, s);
 }
 
@@ -613,7 +613,7 @@ static int spitz_lcdtg_init(SSISlave *dev)
     s->bl_power = 0;
     s->bl_intensity = 0x20;
 
-    register_savevm("spitz-lcdtg", -1, 1,
+    register_savevm(&dev->qdev, "spitz-lcdtg", -1, 1,
                     spitz_lcdtg_save, spitz_lcdtg_load, s);
     return 0;
 }
@@ -708,7 +708,8 @@ static int corgi_ssp_init(SSISlave *dev)
     s->bus[1] = ssi_create_bus(&dev->qdev, "ssi1");
     s->bus[2] = ssi_create_bus(&dev->qdev, "ssi2");
 
-    register_savevm("spitz_ssp", -1, 1, spitz_ssp_save, spitz_ssp_load, s);
+    register_savevm(&dev->qdev, "spitz_ssp", -1, 1,
+                    spitz_ssp_save, spitz_ssp_load, s);
     return 0;
 }
 
diff --git a/hw/ssd0323.c b/hw/ssd0323.c
index b632825..8643961 100644
--- a/hw/ssd0323.c
+++ b/hw/ssd0323.c
@@ -335,7 +335,8 @@ static int ssd0323_init(SSISlave *dev)
 
     qdev_init_gpio_in(&dev->qdev, ssd0323_cd, 1);
 
-    register_savevm("ssd0323_oled", -1, 1, ssd0323_save, ssd0323_load, s);
+    register_savevm(&dev->qdev, "ssd0323_oled", -1, 1,
+                    ssd0323_save, ssd0323_load, s);
     return 0;
 }
 
diff --git a/hw/ssi-sd.c b/hw/ssi-sd.c
index 5e74e5d..b0fed58 100644
--- a/hw/ssi-sd.c
+++ b/hw/ssi-sd.c
@@ -237,7 +237,7 @@ static int ssi_sd_init(SSISlave *dev)
     s->mode = SSI_SD_CMD;
     bs = qdev_init_bdrv(&dev->qdev, IF_SD);
     s->sd = sd_init(bs, 1);
-    register_savevm("ssi_sd", -1, 1, ssi_sd_save, ssi_sd_load, s);
+    register_savevm(&dev->qdev, "ssi_sd", -1, 1, ssi_sd_save, ssi_sd_load, s);
     return 0;
 }
 
diff --git a/hw/stellaris.c b/hw/stellaris.c
index 5755f8a..ccad134 100644
--- a/hw/stellaris.c
+++ b/hw/stellaris.c
@@ -354,7 +354,8 @@ static int stellaris_gptm_init(SysBusDevice *dev)
     s->opaque[0] = s->opaque[1] = s;
     s->timer[0] = qemu_new_timer(vm_clock, gptm_tick, &s->opaque[0]);
     s->timer[1] = qemu_new_timer(vm_clock, gptm_tick, &s->opaque[1]);
-    register_savevm("stellaris_gptm", -1, 1, gptm_save, gptm_load, s);
+    register_savevm(&dev->qdev, "stellaris_gptm", -1, 1,
+                    gptm_save, gptm_load, s);
     return 0;
 }
 
@@ -673,7 +674,7 @@ static int stellaris_sys_init(uint32_t base, qemu_irq irq,
                                        ssys_writefn, s);
     cpu_register_physical_memory(base, 0x00001000, iomemtype);
     ssys_reset(s);
-    register_savevm("stellaris_sys", -1, 1, ssys_save, ssys_load, s);
+    register_savevm(NULL, "stellaris_sys", -1, 1, ssys_save, ssys_load, s);
     return 0;
 }
 
@@ -887,7 +888,7 @@ static int stellaris_i2c_init(SysBusDevice * dev)
     sysbus_init_mmio(dev, 0x1000, iomemtype);
     /* ??? For now we only implement the master interface.  */
     stellaris_i2c_reset(s);
-    register_savevm("stellaris_i2c", -1, 1,
+    register_savevm(&dev->qdev, "stellaris_i2c", -1, 1,
                     stellaris_i2c_save, stellaris_i2c_load, s);
     return 0;
 }
@@ -1196,7 +1197,7 @@ static int stellaris_adc_init(SysBusDevice *dev)
     sysbus_init_mmio(dev, 0x1000, iomemtype);
     stellaris_adc_reset(s);
     qdev_init_gpio_in(&dev->qdev, stellaris_adc_trigger, 1);
-    register_savevm("stellaris_adc", -1, 1,
+    register_savevm(&dev->qdev, "stellaris_adc", -1, 1,
                     stellaris_adc_save, stellaris_adc_load, s);
     return 0;
 }
@@ -1256,7 +1257,7 @@ static int stellaris_ssi_bus_init(SSISlave *dev)
     s->bus[1] = ssi_create_bus(&dev->qdev, "ssi1");
     qdev_init_gpio_in(&dev->qdev, stellaris_ssi_bus_select, 1);
 
-    register_savevm("stellaris_ssi_bus", -1, 1,
+    register_savevm(&dev->qdev, "stellaris_ssi_bus", -1, 1,
                     stellaris_ssi_bus_save, stellaris_ssi_bus_load, s);
     return 0;
 }
diff --git a/hw/stellaris_enet.c b/hw/stellaris_enet.c
index d1d755e..330a9d6 100644
--- a/hw/stellaris_enet.c
+++ b/hw/stellaris_enet.c
@@ -389,7 +389,7 @@ static void stellaris_enet_cleanup(VLANClientState *nc)
 {
     stellaris_enet_state *s = DO_UPCAST(NICState, nc, nc)->opaque;
 
-    unregister_savevm("stellaris_enet", s);
+    unregister_savevm(&s->busdev.qdev, "stellaris_enet", s);
 
     cpu_unregister_io_memory(s->mmio_index);
 
@@ -419,7 +419,7 @@ static int stellaris_enet_init(SysBusDevice *dev)
     qemu_format_nic_info_str(&s->nic->nc, s->conf.macaddr.a);
 
     stellaris_enet_reset(s);
-    register_savevm("stellaris_enet", -1, 1,
+    register_savevm(&s->busdev.qdev, "stellaris_enet", -1, 1,
                     stellaris_enet_save, stellaris_enet_load, s);
     return 0;
 }
diff --git a/hw/stellaris_input.c b/hw/stellaris_input.c
index 33395a4..16aae96 100644
--- a/hw/stellaris_input.c
+++ b/hw/stellaris_input.c
@@ -86,6 +86,6 @@ void stellaris_gamepad_init(int n, qemu_irq *irq, const int *keycode)
     }
     s->num_buttons = n;
     qemu_add_kbd_event_handler(stellaris_gamepad_put_key, s);
-    register_savevm("stellaris_gamepad", -1, 1,
+    register_savevm(NULL, "stellaris_gamepad", -1, 1,
                     stellaris_gamepad_save, stellaris_gamepad_load, s);
 }
diff --git a/hw/syborg_fb.c b/hw/syborg_fb.c
index 7be04a3..ed57203 100644
--- a/hw/syborg_fb.c
+++ b/hw/syborg_fb.c
@@ -526,7 +526,7 @@ static int syborg_fb_init(SysBusDevice *dev)
     if (!s->rows)
         s->rows = ds_get_height(s->ds);
 
-    register_savevm("syborg_framebuffer", -1, 1,
+    register_savevm(&dev->qdev, "syborg_framebuffer", -1, 1,
                     syborg_fb_save, syborg_fb_load, s);
     return 0;
 }
diff --git a/hw/syborg_interrupt.c b/hw/syborg_interrupt.c
index f3a1767..cd10416 100644
--- a/hw/syborg_interrupt.c
+++ b/hw/syborg_interrupt.c
@@ -214,7 +214,7 @@ static int syborg_int_init(SysBusDevice *dev)
     sysbus_init_mmio(dev, 0x1000, iomemtype);
     s->flags = qemu_mallocz(s->num_irqs * sizeof(syborg_int_flags));
 
-    register_savevm("syborg_int", -1, 1, syborg_int_save, syborg_int_load, s);
+    register_savevm(&dev->qdev, "syborg_int", -1, 1, syborg_int_save, syborg_int_load, s);
     return 0;
 }
 
diff --git a/hw/syborg_keyboard.c b/hw/syborg_keyboard.c
index 4a562f8..7709100 100644
--- a/hw/syborg_keyboard.c
+++ b/hw/syborg_keyboard.c
@@ -220,7 +220,7 @@ static int syborg_keyboard_init(SysBusDevice *dev)
 
     qemu_add_kbd_event_handler(syborg_keyboard_event, s);
 
-    register_savevm("syborg_keyboard", -1, 1,
+    register_savevm(&dev->qdev, "syborg_keyboard", -1, 1,
                     syborg_keyboard_save, syborg_keyboard_load, s);
     return 0;
 }
diff --git a/hw/syborg_pointer.c b/hw/syborg_pointer.c
index 563d730..69b8d96 100644
--- a/hw/syborg_pointer.c
+++ b/hw/syborg_pointer.c
@@ -218,7 +218,7 @@ static int syborg_pointer_init(SysBusDevice *dev)
     qemu_add_mouse_event_handler(syborg_pointer_event, s, s->absolute,
                                  "Syborg Pointer");
 
-    register_savevm("syborg_pointer", -1, 1,
+    register_savevm(&dev->qdev, "syborg_pointer", -1, 1,
                     syborg_pointer_save, syborg_pointer_load, s);
     return 0;
 }
diff --git a/hw/syborg_rtc.c b/hw/syborg_rtc.c
index b066213..78d5edb 100644
--- a/hw/syborg_rtc.c
+++ b/hw/syborg_rtc.c
@@ -136,7 +136,8 @@ static int syborg_rtc_init(SysBusDevice *dev)
     qemu_get_timedate(&tm, 0);
     s->offset = (uint64_t)mktime(&tm) * 1000000000;
 
-    register_savevm("syborg_rtc", -1, 1, syborg_rtc_save, syborg_rtc_load, s);
+    register_savevm(&dev->qdev, "syborg_rtc", -1, 1,
+                    syborg_rtc_save, syborg_rtc_load, s);
     return 0;
 }
 
diff --git a/hw/syborg_serial.c b/hw/syborg_serial.c
index cac00ea..8c42956 100644
--- a/hw/syborg_serial.c
+++ b/hw/syborg_serial.c
@@ -335,7 +335,7 @@ static int syborg_serial_init(SysBusDevice *dev)
     }
     s->read_fifo = qemu_mallocz(s->fifo_size * sizeof(s->read_fifo[0]));
 
-    register_savevm("syborg_serial", -1, 1,
+    register_savevm(&dev->qdev, "syborg_serial", -1, 1,
                     syborg_serial_save, syborg_serial_load, s);
     return 0;
 }
diff --git a/hw/syborg_timer.c b/hw/syborg_timer.c
index 3e4a447..95e07d7 100644
--- a/hw/syborg_timer.c
+++ b/hw/syborg_timer.c
@@ -221,7 +221,7 @@ static int syborg_timer_init(SysBusDevice *dev)
     bh = qemu_bh_new(syborg_timer_tick, s);
     s->timer = ptimer_init(bh);
     ptimer_set_freq(s->timer, s->freq);
-    register_savevm("syborg_timer", -1, 1,
+    register_savevm(&dev->qdev, "syborg_timer", -1, 1,
                     syborg_timer_save, syborg_timer_load, s);
     return 0;
 }
diff --git a/hw/tsc2005.c b/hw/tsc2005.c
index b75cc86..a55853c 100644
--- a/hw/tsc2005.c
+++ b/hw/tsc2005.c
@@ -548,7 +548,7 @@ void *tsc2005_init(qemu_irq pintdav)
                     "QEMU TSC2005-driven Touchscreen");
 
     qemu_register_reset((void *) tsc2005_reset, s);
-    register_savevm("tsc2005", -1, 0, tsc2005_save, tsc2005_load, s);
+    register_savevm(NULL, "tsc2005", -1, 0, tsc2005_save, tsc2005_load, s);
 
     return s;
 }
diff --git a/hw/tsc210x.c b/hw/tsc210x.c
index e851ca1..fca73f1 100644
--- a/hw/tsc210x.c
+++ b/hw/tsc210x.c
@@ -1143,7 +1143,7 @@ uWireSlave *tsc2102_init(qemu_irq pint)
     AUD_register_card(s->name, &s->card);
 
     qemu_register_reset((void *) tsc210x_reset, s);
-    register_savevm(s->name, -1, 0,
+    register_savevm(NULL, s->name, -1, 0,
                     tsc210x_save, tsc210x_load, s);
 
     return &s->chip;
@@ -1194,7 +1194,7 @@ uWireSlave *tsc2301_init(qemu_irq penirq, qemu_irq kbirq, qemu_irq dav)
     AUD_register_card(s->name, &s->card);
 
     qemu_register_reset((void *) tsc210x_reset, s);
-    register_savevm(s->name, -1, 0, tsc210x_save, tsc210x_load, s);
+    register_savevm(NULL, s->name, -1, 0, tsc210x_save, tsc210x_load, s);
 
     return &s->chip;
 }
diff --git a/hw/unin_pci.c b/hw/unin_pci.c
index f0a773d..362fb77 100644
--- a/hw/unin_pci.c
+++ b/hw/unin_pci.c
@@ -158,7 +158,8 @@ static int pci_unin_main_init_device(SysBusDevice *dev)
     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 
-    register_savevm("uninorth", 0, 1, pci_unin_save, pci_unin_load, &s->host_state);
+    register_savevm(&dev->qdev, "uninorth", 0, 1,
+                    pci_unin_save, pci_unin_load, &s->host_state);
     qemu_register_reset(pci_unin_reset, &s->host_state);
     return 0;
 }
@@ -178,7 +179,8 @@ static int pci_u3_agp_init_device(SysBusDevice *dev)
     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 
-    register_savevm("uninorth", 0, 1, pci_unin_save, pci_unin_load, &s->host_state);
+    register_savevm(&dev->qdev, "uninorth", 0, 1,
+                    pci_unin_save, pci_unin_load, &s->host_state);
     qemu_register_reset(pci_unin_reset, &s->host_state);
 
     return 0;
diff --git a/hw/vga-isa-mm.c b/hw/vga-isa-mm.c
index 8e31e36..680b557 100644
--- a/hw/vga-isa-mm.c
+++ b/hw/vga-isa-mm.c
@@ -100,7 +100,7 @@ static void vga_mm_init(ISAVGAMMState *s, target_phys_addr_t vram_base,
     s_ioport_ctrl = cpu_register_io_memory(vga_mm_read_ctrl, vga_mm_write_ctrl, s);
     vga_io_memory = cpu_register_io_memory(vga_mem_read, vga_mem_write, s);
 
-    vmstate_register(0, &vmstate_vga_common, s);
+    vmstate_register(NULL, 0, &vmstate_vga_common, s);
 
     cpu_register_physical_memory(ctrl_base, 0x100000, s_ioport_ctrl);
     s->vga.bank_offset = 0;
diff --git a/hw/vga-isa.c b/hw/vga-isa.c
index 7937144..3046054 100644
--- a/hw/vga-isa.c
+++ b/hw/vga-isa.c
@@ -37,7 +37,7 @@ int isa_vga_init(void)
 
     vga_common_init(s, VGA_RAM_SIZE);
     vga_init(s);
-    vmstate_register(0, &vmstate_vga_common, s);
+    vmstate_register(NULL, 0, &vmstate_vga_common, s);
 
     s->ds = graphic_console_init(s->update, s->invalidate,
                                  s->screen_dump, s->text_update, s);
diff --git a/hw/virtio-balloon.c b/hw/virtio-balloon.c
index 152af80..9fe3886 100644
--- a/hw/virtio-balloon.c
+++ b/hw/virtio-balloon.c
@@ -270,7 +270,8 @@ VirtIODevice *virtio_balloon_init(DeviceState *dev)
     reset_stats(s);
     qemu_add_balloon_handler(virtio_balloon_to_target, s);
 
-    register_savevm("virtio-balloon", -1, 1, virtio_balloon_save, virtio_balloon_load, s);
+    register_savevm(dev, "virtio-balloon", -1, 1,
+                    virtio_balloon_save, virtio_balloon_load, s);
 
     return &s->vdev;
 }
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 5d7f1a2..5f523fc 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -511,7 +511,7 @@ VirtIODevice *virtio_blk_init(DeviceState *dev, BlockConf *conf)
     s->vq = virtio_add_queue(&s->vdev, 128, virtio_blk_handle_output);
 
     qemu_add_vm_change_state_handler(virtio_blk_dma_restart_cb, s);
-    register_savevm("virtio-blk", virtio_blk_id++, 2,
+    register_savevm(dev, "virtio-blk", virtio_blk_id++, 2,
                     virtio_blk_save, virtio_blk_load, s);
 
     return &s->vdev;
diff --git a/hw/virtio-net.c b/hw/virtio-net.c
index 06ba481..e9768e0 100644
--- a/hw/virtio-net.c
+++ b/hw/virtio-net.c
@@ -923,7 +923,7 @@ VirtIODevice *virtio_net_init(DeviceState *dev, NICConf *conf)
 
     n->vlans = qemu_mallocz(MAX_VLAN >> 3);
 
-    register_savevm("virtio-net", virtio_net_id++, VIRTIO_NET_VM_VERSION,
+    register_savevm(NULL, "virtio-net", virtio_net_id++, VIRTIO_NET_VM_VERSION,
                     virtio_net_save, virtio_net_load, n);
     n->vmstate = qemu_add_vm_change_state_handler(virtio_net_vmstate_change, n);
 
@@ -941,7 +941,7 @@ void virtio_net_exit(VirtIODevice *vdev)
 
     qemu_purge_queued_packets(&n->nic->nc);
 
-    unregister_savevm("virtio-net", n);
+    unregister_savevm(NULL, "virtio-net", n);
 
     qemu_free(n->mac_table.macs);
     qemu_free(n->vlans);
diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c
index 7f9d28f..b5ab3bb 100644
--- a/hw/virtio-serial-bus.c
+++ b/hw/virtio-serial-bus.c
@@ -790,7 +790,7 @@ VirtIODevice *virtio_serial_init(DeviceState *dev, uint32_t max_nr_ports)
      * Register for the savevm section with the virtio-console name
      * to preserve backward compat
      */
-    register_savevm("virtio-console", -1, 2, virtio_serial_save,
+    register_savevm(dev, "virtio-console", -1, 2, virtio_serial_save,
                     virtio_serial_load, vser);
 
     return vdev;
diff --git a/hw/vmmouse.c b/hw/vmmouse.c
index afebad9..f359304 100644
--- a/hw/vmmouse.c
+++ b/hw/vmmouse.c
@@ -274,7 +274,7 @@ void *vmmouse_init(void *m)
     vmport_register(VMMOUSE_STATUS, vmmouse_ioport_read, s);
     vmport_register(VMMOUSE_COMMAND, vmmouse_ioport_read, s);
     vmport_register(VMMOUSE_DATA, vmmouse_ioport_read, s);
-    vmstate_register(0, &vmstate_vmmouse, s);
+    vmstate_register(NULL, 0, &vmstate_vmmouse, s);
 
     return s;
 }
diff --git a/hw/vmware_vga.c b/hw/vmware_vga.c
index bf2a699..359e5d8 100644
--- a/hw/vmware_vga.c
+++ b/hw/vmware_vga.c
@@ -1169,7 +1169,7 @@ static void vmsvga_init(struct vmsvga_state_s *s, int vga_ram_size)
 
     vga_common_init(&s->vga, vga_ram_size);
     vga_init(&s->vga);
-    vmstate_register(0, &vmstate_vga_common, &s->vga);
+    vmstate_register(NULL, 0, &vmstate_vga_common, &s->vga);
 
     vga_init_vbe(&s->vga);
 
diff --git a/hw/zaurus.c b/hw/zaurus.c
index db6ba75..dd999d7 100644
--- a/hw/zaurus.c
+++ b/hw/zaurus.c
@@ -230,7 +230,7 @@ ScoopInfo *scoop_init(PXA2xxState *cpu,
     iomemtype = cpu_register_io_memory(scoop_readfn,
                     scoop_writefn, s);
     cpu_register_physical_memory(target_base, 0x1000, iomemtype);
-    register_savevm("scoop", instance, 1, scoop_save, scoop_load, s);
+    register_savevm(NULL, "scoop", instance, 1, scoop_save, scoop_load, s);
 
     return s;
 }
diff --git a/qemu-timer.c b/qemu-timer.c
index bdc8206..bc5f207 100644
--- a/qemu-timer.c
+++ b/qemu-timer.c
@@ -662,7 +662,7 @@ static const VMStateDescription vmstate_timers = {
 
 void configure_icount(const char *option)
 {
-    vmstate_register(0, &vmstate_timers, &timers_state);
+    vmstate_register(NULL, 0, &vmstate_timers, &timers_state);
     if (!option)
         return;
 
diff --git a/savevm.c b/savevm.c
index af92ba2..81d544f 100644
--- a/savevm.c
+++ b/savevm.c
@@ -72,6 +72,7 @@
 
 #include "qemu-common.h"
 #include "hw/hw.h"
+#include "hw/qdev.h"
 #include "net.h"
 #include "monitor.h"
 #include "sysemu.h"
@@ -1026,7 +1027,8 @@ static int calculate_new_instance_id(const char *idstr)
    of the system, so instance_id should be removed/replaced.
    Meanwhile pass -1 as instance_id if you do not already have a clearly
    distinguishing id for all instances of your device class. */
-int register_savevm_live(const char *idstr,
+int register_savevm_live(DeviceState *dev,
+                         const char *idstr,
                          int instance_id,
                          int version_id,
                          SaveSetParamsHandler *set_params,
@@ -1058,18 +1060,19 @@ int register_savevm_live(const char *idstr,
     return 0;
 }
 
-int register_savevm(const char *idstr,
+int register_savevm(DeviceState *dev,
+                    const char *idstr,
                     int instance_id,
                     int version_id,
                     SaveStateHandler *save_state,
                     LoadStateHandler *load_state,
                     void *opaque)
 {
-    return register_savevm_live(idstr, instance_id, version_id,
+    return register_savevm_live(dev, idstr, instance_id, version_id,
                                 NULL, NULL, save_state, load_state, opaque);
 }
 
-void unregister_savevm(const char *idstr, void *opaque)
+void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque)
 {
     SaveStateEntry *se, *new_se;
 
@@ -1081,7 +1084,7 @@ void unregister_savevm(const char *idstr, void *opaque)
     }
 }
 
-int vmstate_register_with_alias_id(int instance_id,
+int vmstate_register_with_alias_id(DeviceState *dev, int instance_id,
                                    const VMStateDescription *vmsd,
                                    void *opaque, int alias_id,
                                    int required_for_version)
@@ -1112,13 +1115,15 @@ int vmstate_register_with_alias_id(int instance_id,
     return 0;
 }
 
-int vmstate_register(int instance_id, const VMStateDescription *vmsd,
-                     void *opaque)
+int vmstate_register(DeviceState *dev, int instance_id,
+                     const VMStateDescription *vmsd, void *opaque)
 {
-    return vmstate_register_with_alias_id(instance_id, vmsd, opaque, -1, 0);
+    return vmstate_register_with_alias_id(dev, instance_id, vmsd,
+                                          opaque, -1, 0);
 }
 
-void vmstate_unregister(const VMStateDescription *vmsd, void *opaque)
+void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd,
+                        void *opaque)
 {
     SaveStateEntry *se, *new_se;
 
diff --git a/slirp/slirp.c b/slirp/slirp.c
index 3c785cd..82fd9b4 100644
--- a/slirp/slirp.c
+++ b/slirp/slirp.c
@@ -232,7 +232,8 @@ Slirp *slirp_init(int restricted, struct in_addr vnetwork,
 
     slirp->opaque = opaque;
 
-    register_savevm("slirp", 0, 3, slirp_state_save, slirp_state_load, slirp);
+    register_savevm(NULL, "slirp", 0, 3,
+                    slirp_state_save, slirp_state_load, slirp);
 
     QTAILQ_INSERT_TAIL(&slirp_instances, slirp, entry);
 
@@ -243,7 +244,7 @@ void slirp_cleanup(Slirp *slirp)
 {
     QTAILQ_REMOVE(&slirp_instances, slirp, entry);
 
-    unregister_savevm("slirp", slirp);
+    unregister_savevm(NULL, "slirp", slirp);
 
     qemu_free(slirp->tftp_prefix);
     qemu_free(slirp->bootp_filename);
diff --git a/vl.c b/vl.c
index 3d7ce52..405d8ba 100644
--- a/vl.c
+++ b/vl.c
@@ -3644,7 +3644,7 @@ int main(int argc, char **argv, char **envp)
     if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
         exit(1);
 
-    register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL, 
+    register_savevm_live(NULL, "ram", 0, 3, NULL, ram_save_live, NULL, 
                          ram_load, NULL);
 
     if (nb_numa_nodes > 0) {
