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-rw-r--r--hw/9pfs/9p-handle.c6
-rw-r--r--hw/9pfs/9p-local.c4
-rw-r--r--hw/9pfs/xen-9p-backend.c7
-rw-r--r--hw/Makefile.objs2
-rw-r--r--hw/alpha/typhoon.c13
-rw-r--r--hw/arm/boot.c18
-rw-r--r--hw/core/Makefile.objs3
-rw-r--r--hw/core/machine.c2
-rw-r--r--hw/core/null-machine.c2
-rw-r--r--hw/display/cg3.c2
-rw-r--r--hw/display/tcx.c2
-rw-r--r--hw/hppa/dino.c7
-rw-r--r--hw/i386/pc.c11
-rw-r--r--hw/intc/armv7m_nvic.c12
-rw-r--r--hw/intc/ioapic.c8
-rw-r--r--hw/intc/xics.c15
-rw-r--r--hw/intc/xics_kvm.c7
-rw-r--r--hw/isa/Makefile.objs3
-rw-r--r--hw/mem/Makefile.objs4
-rw-r--r--hw/mem/memory-device.c103
-rw-r--r--hw/mem/nvdimm.c9
-rw-r--r--hw/mem/pc-dimm.c84
-rw-r--r--hw/mem/trace-events5
-rw-r--r--hw/mips/gt64xxx_pci.c18
-rw-r--r--hw/mips/mips_malta.c13
-rw-r--r--hw/misc/ivshmem.c4
-rw-r--r--hw/net/cadence_gem.c9
-rw-r--r--hw/net/etraxfs_eth.c44
-rw-r--r--hw/net/lan9118.c9
-rw-r--r--hw/net/lance.c8
-rw-r--r--hw/net/milkymist-minimac2.c9
-rw-r--r--hw/net/mipsnet.c9
-rw-r--r--hw/net/opencores_eth.c8
-rw-r--r--hw/net/smc91c111.c8
-rw-r--r--hw/net/stellaris_enet.c15
-rw-r--r--hw/net/virtio-net.c8
-rw-r--r--hw/net/xgmac.c9
-rw-r--r--hw/pci-host/bonito.c9
-rw-r--r--hw/ppc/pnv_core.c4
-rw-r--r--hw/ppc/spapr.c29
-rw-r--r--hw/ppc/spapr_pci.c7
-rw-r--r--hw/riscv/sifive_clint.c8
-rw-r--r--hw/riscv/sifive_plic.c4
-rw-r--r--hw/riscv/sifive_u.c4
-rw-r--r--hw/riscv/spike.c6
-rw-r--r--hw/riscv/virt.c6
-rw-r--r--hw/sd/ssi-sd.c2
-rw-r--r--hw/sh4/sh_pci.c20
-rw-r--r--hw/smbios/smbios.c90
-rw-r--r--hw/sparc64/niagara.c4
-rw-r--r--hw/ssi/xilinx_spi.c9
-rw-r--r--hw/timer/aspeed_timer.c3
-rw-r--r--hw/timer/sun4v-rtc.c23
-rw-r--r--hw/timer/trace-events6
-rw-r--r--hw/usb/bus.c5
-rw-r--r--hw/vfio/pci-quirks.c4
-rw-r--r--hw/vfio/pci.c25
-rw-r--r--hw/vfio/platform.c6
-rw-r--r--hw/virtio/virtio-pci.c4
-rw-r--r--hw/xen/xen_pt.c2
60 files changed, 414 insertions, 366 deletions
diff --git a/hw/9pfs/9p-handle.c b/hw/9pfs/9p-handle.c
index f3641dbe4a..3465b1ef30 100644
--- a/hw/9pfs/9p-handle.c
+++ b/hw/9pfs/9p-handle.c
@@ -19,6 +19,7 @@
 #include <grp.h>
 #include <sys/socket.h>
 #include <sys/un.h>
+#include "qapi/error.h"
 #include "qemu/xattr.h"
 #include "qemu/cutils.h"
 #include "qemu/error-report.h"
@@ -655,12 +656,13 @@ static int handle_parse_opts(QemuOpts *opts, FsDriverEntry *fse, Error **errp)
     warn_report("handle backend is deprecated");
 
     if (sec_model) {
-        error_report("Invalid argument security_model specified with handle fsdriver");
+        error_setg(errp,
+                   "Invalid argument security_model specified with handle fsdriver");
         return -1;
     }
 
     if (!path) {
-        error_report("fsdev: No path specified");
+        error_setg(errp, "fsdev: No path specified");
         return -1;
     }
     fse->path = g_strdup(path);
diff --git a/hw/9pfs/9p-local.c b/hw/9pfs/9p-local.c
index c30f4f26bd..08e673a79c 100644
--- a/hw/9pfs/9p-local.c
+++ b/hw/9pfs/9p-local.c
@@ -1509,8 +1509,8 @@ static int local_parse_opts(QemuOpts *opts, FsDriverEntry *fse, Error **errp)
 
     fsdev_throttle_parse_opts(opts, &fse->fst, &local_err);
     if (local_err) {
-        error_propagate(errp, local_err);
-        error_prepend(errp, "invalid throttle configuration: ");
+        error_propagate_prepend(errp, local_err,
+                                "invalid throttle configuration: ");
         return -1;
     }
 
diff --git a/hw/9pfs/xen-9p-backend.c b/hw/9pfs/xen-9p-backend.c
index 6026780f95..3f54a21c76 100644
--- a/hw/9pfs/xen-9p-backend.c
+++ b/hw/9pfs/xen-9p-backend.c
@@ -14,6 +14,7 @@
 #include "hw/9pfs/9p.h"
 #include "hw/xen/xen_backend.h"
 #include "hw/9pfs/xen-9pfs.h"
+#include "qapi/error.h"
 #include "qemu/config-file.h"
 #include "qemu/option.h"
 #include "fsdev/qemu-fsdev.h"
@@ -355,6 +356,7 @@ static int xen_9pfs_free(struct XenDevice *xendev)
 
 static int xen_9pfs_connect(struct XenDevice *xendev)
 {
+    Error *err = NULL;
     int i;
     Xen9pfsDev *xen_9pdev = container_of(xendev, Xen9pfsDev, xendev);
     V9fsState *s = &xen_9pdev->state;
@@ -452,7 +454,10 @@ static int xen_9pfs_connect(struct XenDevice *xendev)
     qemu_opt_set(fsdev, "path", xen_9pdev->path, NULL);
     qemu_opt_set(fsdev, "security_model", xen_9pdev->security_model, NULL);
     qemu_opts_set_id(fsdev, s->fsconf.fsdev_id);
-    qemu_fsdev_add(fsdev);
+    qemu_fsdev_add(fsdev, &err);
+    if (err) {
+        error_report_err(err);
+    }
     v9fs_device_realize_common(s, &xen_9p_transport, NULL);
 
     return 0;
diff --git a/hw/Makefile.objs b/hw/Makefile.objs
index 30722ccf98..39d882af6f 100644
--- a/hw/Makefile.objs
+++ b/hw/Makefile.objs
@@ -34,7 +34,7 @@ devices-dirs-$(CONFIG_SOFTMMU) += vfio/
 devices-dirs-$(CONFIG_SOFTMMU) += virtio/
 devices-dirs-$(CONFIG_SOFTMMU) += watchdog/
 devices-dirs-$(CONFIG_SOFTMMU) += xen/
-devices-dirs-$(CONFIG_MEM_HOTPLUG) += mem/
+devices-dirs-$(CONFIG_MEM_DEVICE) += mem/
 devices-dirs-$(CONFIG_SOFTMMU) += smbios/
 devices-dirs-y += core/
 common-obj-y += $(devices-dirs-y)
diff --git a/hw/alpha/typhoon.c b/hw/alpha/typhoon.c
index d74b5b55e1..8004afe45b 100644
--- a/hw/alpha/typhoon.c
+++ b/hw/alpha/typhoon.c
@@ -932,23 +932,10 @@ PCIBus *typhoon_init(ram_addr_t ram_size, ISABus **isa_bus,
     return b;
 }
 
-static int typhoon_pcihost_init(SysBusDevice *dev)
-{
-    return 0;
-}
-
-static void typhoon_pcihost_class_init(ObjectClass *klass, void *data)
-{
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
-
-    k->init = typhoon_pcihost_init;
-}
-
 static const TypeInfo typhoon_pcihost_info = {
     .name          = TYPE_TYPHOON_PCI_HOST_BRIDGE,
     .parent        = TYPE_PCI_HOST_BRIDGE,
     .instance_size = sizeof(TyphoonState),
-    .class_init    = typhoon_pcihost_class_init,
 };
 
 static void typhoon_iommu_memory_region_class_init(ObjectClass *klass,
diff --git a/hw/arm/boot.c b/hw/arm/boot.c
index 20c71d7d96..586baa9b64 100644
--- a/hw/arm/boot.c
+++ b/hw/arm/boot.c
@@ -24,6 +24,7 @@
 #include "qemu/config-file.h"
 #include "qemu/option.h"
 #include "exec/address-spaces.h"
+#include "qemu/units.h"
 
 /* Kernel boot protocol is specified in the kernel docs
  * Documentation/arm/Booting and Documentation/arm64/booting.txt
@@ -36,6 +37,8 @@
 #define ARM64_TEXT_OFFSET_OFFSET    8
 #define ARM64_MAGIC_OFFSET          56
 
+#define BOOTLOADER_MAX_SIZE         (4 * KiB)
+
 AddressSpace *arm_boot_address_space(ARMCPU *cpu,
                                      const struct arm_boot_info *info)
 {
@@ -184,6 +187,8 @@ static void write_bootloader(const char *name, hwaddr addr,
         code[i] = tswap32(insn);
     }
 
+    assert((len * sizeof(uint32_t)) < BOOTLOADER_MAX_SIZE);
+
     rom_add_blob_fixed_as(name, code, len * sizeof(uint32_t), addr, as);
 
     g_free(code);
@@ -919,6 +924,19 @@ static uint64_t load_aarch64_image(const char *filename, hwaddr mem_base,
         memcpy(&hdrvals, buffer + ARM64_TEXT_OFFSET_OFFSET, sizeof(hdrvals));
         if (hdrvals[1] != 0) {
             kernel_load_offset = le64_to_cpu(hdrvals[0]);
+
+            /*
+             * We write our startup "bootloader" at the very bottom of RAM,
+             * so that bit can't be used for the image. Luckily the Image
+             * format specification is that the image requests only an offset
+             * from a 2MB boundary, not an absolute load address. So if the
+             * image requests an offset that might mean it overlaps with the
+             * bootloader, we can just load it starting at 2MB+offset rather
+             * than 0MB + offset.
+             */
+            if (kernel_load_offset < BOOTLOADER_MAX_SIZE) {
+                kernel_load_offset += 2 * MiB;
+            }
         }
     }
 
diff --git a/hw/core/Makefile.objs b/hw/core/Makefile.objs
index b736ce223a..a799c83815 100644
--- a/hw/core/Makefile.objs
+++ b/hw/core/Makefile.objs
@@ -21,5 +21,4 @@ common-obj-$(CONFIG_SOFTMMU) += or-irq.o
 common-obj-$(CONFIG_SOFTMMU) += split-irq.o
 common-obj-$(CONFIG_PLATFORM_BUS) += platform-bus.o
 common-obj-$(CONFIG_SOFTMMU) += generic-loader.o
-
-obj-$(CONFIG_SOFTMMU) += null-machine.o
+common-obj-$(CONFIG_SOFTMMU) += null-machine.o
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 1987557833..da50ad6de7 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -636,7 +636,7 @@ static void machine_class_init(ObjectClass *oc, void *data)
         machine_get_memory_encryption, machine_set_memory_encryption,
         &error_abort);
     object_class_property_set_description(oc, "memory-encryption",
-        "Set memory encyption object to use", &error_abort);
+        "Set memory encryption object to use", &error_abort);
 }
 
 static void machine_class_base_init(ObjectClass *oc, void *data)
diff --git a/hw/core/null-machine.c b/hw/core/null-machine.c
index cde4d3eb57..76d3f8e39c 100644
--- a/hw/core/null-machine.c
+++ b/hw/core/null-machine.c
@@ -18,7 +18,7 @@
 #include "hw/boards.h"
 #include "sysemu/sysemu.h"
 #include "exec/address-spaces.h"
-#include "cpu.h"
+#include "qom/cpu.h"
 
 static void machine_none_init(MachineState *mch)
 {
diff --git a/hw/display/cg3.c b/hw/display/cg3.c
index 1c199ab369..e50d97e48c 100644
--- a/hw/display/cg3.c
+++ b/hw/display/cg3.c
@@ -307,7 +307,7 @@ static void cg3_realizefn(DeviceState *dev, Error **errp)
         ret = load_image_mr(fcode_filename, &s->rom);
         g_free(fcode_filename);
         if (ret < 0 || ret > FCODE_MAX_ROM_SIZE) {
-            error_report("cg3: could not load prom '%s'", CG3_ROM_FILE);
+            warn_report("cg3: could not load prom '%s'", CG3_ROM_FILE);
         }
     }
 
diff --git a/hw/display/tcx.c b/hw/display/tcx.c
index b2786ee8d0..66f2459226 100644
--- a/hw/display/tcx.c
+++ b/hw/display/tcx.c
@@ -823,7 +823,7 @@ static void tcx_realizefn(DeviceState *dev, Error **errp)
         ret = load_image_mr(fcode_filename, &s->rom);
         g_free(fcode_filename);
         if (ret < 0 || ret > FCODE_MAX_ROM_SIZE) {
-            error_report("tcx: could not load prom '%s'", TCX_ROM_FILE);
+            warn_report("tcx: could not load prom '%s'", TCX_ROM_FILE);
         }
     }
 
diff --git a/hw/hppa/dino.c b/hw/hppa/dino.c
index 564b938e3a..31e09942b5 100644
--- a/hw/hppa/dino.c
+++ b/hw/hppa/dino.c
@@ -488,17 +488,10 @@ PCIBus *dino_init(MemoryRegion *addr_space,
     return b;
 }
 
-static int dino_pcihost_init(SysBusDevice *dev)
-{
-    return 0;
-}
-
 static void dino_pcihost_class_init(ObjectClass *klass, void *data)
 {
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
     DeviceClass *dc = DEVICE_CLASS(klass);
 
-    k->init = dino_pcihost_init;
     dc->vmsd = &vmstate_dino;
 }
 
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index cd5029c149..f095725dba 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1704,7 +1704,7 @@ static void pc_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
         return;
     }
 
-    pc_dimm_pre_plug(dev, MACHINE(hotplug_dev),
+    pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev),
                      pcmc->enforce_aligned_dimm ? NULL : &legacy_align, errp);
 }
 
@@ -1716,7 +1716,7 @@ static void pc_memory_plug(HotplugHandler *hotplug_dev,
     PCMachineState *pcms = PC_MACHINE(hotplug_dev);
     bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
 
-    pc_dimm_plug(dev, MACHINE(pcms), &local_err);
+    pc_dimm_plug(PC_DIMM(dev), MACHINE(pcms), &local_err);
     if (local_err) {
         goto out;
     }
@@ -1776,7 +1776,7 @@ static void pc_memory_unplug(HotplugHandler *hotplug_dev,
         goto out;
     }
 
-    pc_dimm_unplug(dev, MACHINE(pcms));
+    pc_dimm_unplug(PC_DIMM(dev), MACHINE(pcms));
     object_unparent(OBJECT(dev));
 
  out:
@@ -2209,8 +2209,9 @@ static void pc_machine_set_nvdimm_persistence(Object *obj, const char *value,
     else if (strcmp(value, "mem-ctrl") == 0)
         nvdimm_state->persistence = 2;
     else {
-        error_report("-machine nvdimm-persistence=%s: unsupported option", value);
-        exit(EXIT_FAILURE);
+        error_setg(errp, "-machine nvdimm-persistence=%s: unsupported option",
+                   value);
+        return;
     }
 
     g_free(nvdimm_state->persistence_string);
diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c
index 0d816fdd2c..0beefb05d4 100644
--- a/hw/intc/armv7m_nvic.c
+++ b/hw/intc/armv7m_nvic.c
@@ -1055,17 +1055,17 @@ static uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs)
     case 0xd5c: /* MMFR3.  */
         return cpu->id_mmfr3;
     case 0xd60: /* ISAR0.  */
-        return cpu->id_isar0;
+        return cpu->isar.id_isar0;
     case 0xd64: /* ISAR1.  */
-        return cpu->id_isar1;
+        return cpu->isar.id_isar1;
     case 0xd68: /* ISAR2.  */
-        return cpu->id_isar2;
+        return cpu->isar.id_isar2;
     case 0xd6c: /* ISAR3.  */
-        return cpu->id_isar3;
+        return cpu->isar.id_isar3;
     case 0xd70: /* ISAR4.  */
-        return cpu->id_isar4;
+        return cpu->isar.id_isar4;
     case 0xd74: /* ISAR5.  */
-        return cpu->id_isar5;
+        return cpu->isar.id_isar5;
     case 0xd78: /* CLIDR */
         return cpu->clidr;
     case 0xd7c: /* CTR */
diff --git a/hw/intc/ioapic.c b/hw/intc/ioapic.c
index b6896ac4ce..4e529729b4 100644
--- a/hw/intc/ioapic.c
+++ b/hw/intc/ioapic.c
@@ -21,7 +21,7 @@
  */
 
 #include "qemu/osdep.h"
-#include "qemu/error-report.h"
+#include "qapi/error.h"
 #include "monitor/monitor.h"
 #include "hw/hw.h"
 #include "hw/i386/pc.h"
@@ -393,9 +393,9 @@ static void ioapic_realize(DeviceState *dev, Error **errp)
     IOAPICCommonState *s = IOAPIC_COMMON(dev);
 
     if (s->version != 0x11 && s->version != 0x20) {
-        error_report("IOAPIC only supports version 0x11 or 0x20 "
-                     "(default: 0x%x).", IOAPIC_VER_DEF);
-        exit(1);
+        error_setg(errp, "IOAPIC only supports version 0x11 or 0x20 "
+                   "(default: 0x%x).", IOAPIC_VER_DEF);
+        return;
     }
 
     memory_region_init_io(&s->io_memory, OBJECT(s), &ioapic_io_ops, s,
diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index c90c893228..406efee064 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -320,8 +320,9 @@ static void icp_realize(DeviceState *dev, Error **errp)
 
     obj = object_property_get_link(OBJECT(dev), ICP_PROP_XICS, &err);
     if (!obj) {
-        error_propagate(errp, err);
-        error_prepend(errp, "required link '" ICP_PROP_XICS "' not found: ");
+        error_propagate_prepend(errp, err,
+                                "required link '" ICP_PROP_XICS
+                                "' not found: ");
         return;
     }
 
@@ -329,8 +330,9 @@ static void icp_realize(DeviceState *dev, Error **errp)
 
     obj = object_property_get_link(OBJECT(dev), ICP_PROP_CPU, &err);
     if (!obj) {
-        error_propagate(errp, err);
-        error_prepend(errp, "required link '" ICP_PROP_CPU "' not found: ");
+        error_propagate_prepend(errp, err,
+                                "required link '" ICP_PROP_CPU
+                                "' not found: ");
         return;
     }
 
@@ -624,8 +626,9 @@ static void ics_base_realize(DeviceState *dev, Error **errp)
 
     obj = object_property_get_link(OBJECT(dev), ICS_PROP_XICS, &err);
     if (!obj) {
-        error_propagate(errp, err);
-        error_prepend(errp, "required link '" ICS_PROP_XICS "' not found: ");
+        error_propagate_prepend(errp, err,
+                                "required link '" ICS_PROP_XICS
+                                "' not found: ");
         return;
     }
     ics->xics = XICS_FABRIC(obj);
diff --git a/hw/intc/xics_kvm.c b/hw/intc/xics_kvm.c
index 30c3769a20..e8fa9a53ae 100644
--- a/hw/intc/xics_kvm.c
+++ b/hw/intc/xics_kvm.c
@@ -198,17 +198,12 @@ static void ics_get_kvm_state(ICSState *ics)
 {
     uint64_t state;
     int i;
-    Error *local_err = NULL;
 
     for (i = 0; i < ics->nr_irqs; i++) {
         ICSIRQState *irq = &ics->irqs[i];
 
         kvm_device_access(kernel_xics_fd, KVM_DEV_XICS_GRP_SOURCES,
-                          i + ics->offset, &state, false, &local_err);
-        if (local_err) {
-            error_report_err(local_err);
-            exit(1);
-        }
+                          i + ics->offset, &state, false, &error_fatal);
 
         irq->server = state & KVM_XICS_DESTINATION_MASK;
         irq->saved_priority = (state >> KVM_XICS_PRIORITY_SHIFT)
diff --git a/hw/isa/Makefile.objs b/hw/isa/Makefile.objs
index 83e06f6c04..9e106df186 100644
--- a/hw/isa/Makefile.objs
+++ b/hw/isa/Makefile.objs
@@ -1,9 +1,10 @@
 common-obj-$(CONFIG_ISA_BUS) += isa-bus.o
-common-obj-$(CONFIG_ISA_BUS) += isa-superio.o smc37c669-superio.o
+common-obj-$(CONFIG_ISA_BUS) += isa-superio.o
 common-obj-$(CONFIG_APM) += apm.o
 common-obj-$(CONFIG_I82378) += i82378.o
 common-obj-$(CONFIG_PC87312) += pc87312.o
 common-obj-$(CONFIG_PIIX4) += piix4.o
 common-obj-$(CONFIG_VT82C686) += vt82c686.o
+common-obj-$(CONFIG_SMC37C669) += smc37c669-superio.o
 
 obj-$(CONFIG_LPC_ICH9) += lpc_ich9.o
diff --git a/hw/mem/Makefile.objs b/hw/mem/Makefile.objs
index 10be4df2a2..3e2f7c5ca2 100644
--- a/hw/mem/Makefile.objs
+++ b/hw/mem/Makefile.objs
@@ -1,3 +1,3 @@
-common-obj-$(CONFIG_MEM_HOTPLUG) += pc-dimm.o
-common-obj-$(CONFIG_MEM_HOTPLUG) += memory-device.o
+common-obj-$(CONFIG_DIMM) += pc-dimm.o
+common-obj-$(CONFIG_MEM_DEVICE) += memory-device.o
 common-obj-$(CONFIG_NVDIMM) += nvdimm.o
diff --git a/hw/mem/memory-device.c b/hw/mem/memory-device.c
index 6de4f70bb4..7de1ccd497 100644
--- a/hw/mem/memory-device.c
+++ b/hw/mem/memory-device.c
@@ -17,6 +17,7 @@
 #include "qemu/range.h"
 #include "hw/virtio/vhost.h"
 #include "sysemu/kvm.h"
+#include "trace.h"
 
 static gint memory_device_addr_sort(gconstpointer a, gconstpointer b)
 {
@@ -57,10 +58,9 @@ static int memory_device_used_region_size(Object *obj, void *opaque)
     if (object_dynamic_cast(obj, TYPE_MEMORY_DEVICE)) {
         const DeviceState *dev = DEVICE(obj);
         const MemoryDeviceState *md = MEMORY_DEVICE(obj);
-        const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(obj);
 
         if (dev->realized) {
-            *size += mdc->get_region_size(md);
+            *size += memory_device_get_region_size(md, &error_abort);
         }
     }
 
@@ -87,16 +87,17 @@ static void memory_device_check_addable(MachineState *ms, uint64_t size,
     memory_device_used_region_size(OBJECT(ms), &used_region_size);
     if (used_region_size + size > ms->maxram_size - ms->ram_size) {
         error_setg(errp, "not enough space, currently 0x%" PRIx64
-                   " in use of total hot pluggable 0x" RAM_ADDR_FMT,
+                   " in use of total space for memory devices 0x" RAM_ADDR_FMT,
                    used_region_size, ms->maxram_size - ms->ram_size);
         return;
     }
 
 }
 
-uint64_t memory_device_get_free_addr(MachineState *ms, const uint64_t *hint,
-                                     uint64_t align, uint64_t size,
-                                     Error **errp)
+static uint64_t memory_device_get_free_addr(MachineState *ms,
+                                            const uint64_t *hint,
+                                            uint64_t align, uint64_t size,
+                                            Error **errp)
 {
     uint64_t address_space_start, address_space_end;
     GSList *list = NULL, *item;
@@ -120,7 +121,7 @@ uint64_t memory_device_get_free_addr(MachineState *ms, const uint64_t *hint,
 
     /* address_space_start indicates the maximum alignment we expect */
     if (QEMU_ALIGN_UP(address_space_start, align) != address_space_start) {
-        error_setg(errp, "the alignment (0%" PRIx64 ") is not supported",
+        error_setg(errp, "the alignment (0x%" PRIx64 ") is not supported",
                    align);
         return 0;
     }
@@ -145,11 +146,12 @@ uint64_t memory_device_get_free_addr(MachineState *ms, const uint64_t *hint,
     if (hint) {
         new_addr = *hint;
         if (new_addr < address_space_start) {
-            error_setg(errp, "can't add memory [0x%" PRIx64 ":0x%" PRIx64
-                       "] at 0x%" PRIx64, new_addr, size, address_space_start);
+            error_setg(errp, "can't add memory device [0x%" PRIx64 ":0x%" PRIx64
+                       "] before 0x%" PRIx64, new_addr, size,
+                       address_space_start);
             return 0;
         } else if ((new_addr + size) > address_space_end) {
-            error_setg(errp, "can't add memory [0x%" PRIx64 ":0x%" PRIx64
+            error_setg(errp, "can't add memory device [0x%" PRIx64 ":0x%" PRIx64
                        "] beyond 0x%" PRIx64, new_addr, size,
                        address_space_end);
             return 0;
@@ -166,15 +168,13 @@ uint64_t memory_device_get_free_addr(MachineState *ms, const uint64_t *hint,
         uint64_t md_size, md_addr;
 
         md_addr = mdc->get_addr(md);
-        md_size = mdc->get_region_size(md);
-        if (*errp) {
-            goto out;
-        }
+        md_size = memory_device_get_region_size(md, &error_abort);
 
         if (ranges_overlap(md_addr, md_size, new_addr, size)) {
             if (hint) {
                 const DeviceState *d = DEVICE(md);
-                error_setg(errp, "address range conflicts with '%s'", d->id);
+                error_setg(errp, "address range conflicts with memory device"
+                           " id='%s'", d->id ? d->id : "(unnamed)");
                 goto out;
             }
             new_addr = QEMU_ALIGN_UP(md_addr + md_size, align);
@@ -232,7 +232,7 @@ static int memory_device_plugged_size(Object *obj, void *opaque)
         const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(obj);
 
         if (dev->realized) {
-            *size += mdc->get_plugged_size(md);
+            *size += mdc->get_plugged_size(md, &error_abort);
         }
     }
 
@@ -249,22 +249,83 @@ uint64_t get_plugged_memory_size(void)
     return size;
 }
 
-void memory_device_plug_region(MachineState *ms, MemoryRegion *mr,
-                               uint64_t addr)
+void memory_device_pre_plug(MemoryDeviceState *md, MachineState *ms,
+                            const uint64_t *legacy_align, Error **errp)
+{
+    const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(md);
+    Error *local_err = NULL;
+    uint64_t addr, align;
+    MemoryRegion *mr;
+
+    mr = mdc->get_memory_region(md, &local_err);
+    if (local_err) {
+        goto out;
+    }
+
+    align = legacy_align ? *legacy_align : memory_region_get_alignment(mr);
+    addr = mdc->get_addr(md);
+    addr = memory_device_get_free_addr(ms, !addr ? NULL : &addr, align,
+                                       memory_region_size(mr), &local_err);
+    if (local_err) {
+        goto out;
+    }
+    mdc->set_addr(md, addr, &local_err);
+    if (!local_err) {
+        trace_memory_device_pre_plug(DEVICE(md)->id ? DEVICE(md)->id : "",
+                                     addr);
+    }
+out:
+    error_propagate(errp, local_err);
+}
+
+void memory_device_plug(MemoryDeviceState *md, MachineState *ms)
 {
-    /* we expect a previous call to memory_device_get_free_addr() */
+    const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(md);
+    const uint64_t addr = mdc->get_addr(md);
+    MemoryRegion *mr;
+
+    /*
+     * We expect that a previous call to memory_device_pre_plug() succeeded, so
+     * it can't fail at this point.
+     */
+    mr = mdc->get_memory_region(md, &error_abort);
     g_assert(ms->device_memory);
 
     memory_region_add_subregion(&ms->device_memory->mr,
                                 addr - ms->device_memory->base, mr);
+    trace_memory_device_plug(DEVICE(md)->id ? DEVICE(md)->id : "", addr);
 }
 
-void memory_device_unplug_region(MachineState *ms, MemoryRegion *mr)
+void memory_device_unplug(MemoryDeviceState *md, MachineState *ms)
 {
-    /* we expect a previous call to memory_device_get_free_addr() */
+    const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(md);
+    MemoryRegion *mr;
+
+    /*
+     * We expect that a previous call to memory_device_pre_plug() succeeded, so
+     * it can't fail at this point.
+     */
+    mr = mdc->get_memory_region(md, &error_abort);
     g_assert(ms->device_memory);
 
     memory_region_del_subregion(&ms->device_memory->mr, mr);
+    trace_memory_device_unplug(DEVICE(md)->id ? DEVICE(md)->id : "",
+                               mdc->get_addr(md));
+}
+
+uint64_t memory_device_get_region_size(const MemoryDeviceState *md,
+                                       Error **errp)
+{
+    const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(md);
+    MemoryRegion *mr;
+
+    /* dropping const here is fine as we don't touch the memory region */
+    mr = mdc->get_memory_region((MemoryDeviceState *)md, errp);
+    if (!mr) {
+        return 0;
+    }
+
+    return memory_region_size(mr);
 }
 
 static const TypeInfo memory_device_info = {
diff --git a/hw/mem/nvdimm.c b/hw/mem/nvdimm.c
index 1c6674c4ed..49324f3fae 100644
--- a/hw/mem/nvdimm.c
+++ b/hw/mem/nvdimm.c
@@ -27,6 +27,7 @@
 #include "qapi/error.h"
 #include "qapi/visitor.h"
 #include "hw/mem/nvdimm.h"
+#include "hw/mem/memory-device.h"
 
 static void nvdimm_get_label_size(Object *obj, Visitor *v, const char *name,
                                   void *opaque, Error **errp)
@@ -118,9 +119,10 @@ static void nvdimm_prepare_memory_region(NVDIMMDevice *nvdimm, Error **errp)
     nvdimm->nvdimm_mr->align = align;
 }
 
-static MemoryRegion *nvdimm_get_memory_region(PCDIMMDevice *dimm, Error **errp)
+static MemoryRegion *nvdimm_md_get_memory_region(MemoryDeviceState *md,
+                                                 Error **errp)
 {
-    NVDIMMDevice *nvdimm = NVDIMM(dimm);
+    NVDIMMDevice *nvdimm = NVDIMM(md);
     Error *local_err = NULL;
 
     if (!nvdimm->nvdimm_mr) {
@@ -190,11 +192,12 @@ static Property nvdimm_properties[] = {
 static void nvdimm_class_init(ObjectClass *oc, void *data)
 {
     PCDIMMDeviceClass *ddc = PC_DIMM_CLASS(oc);
+    MemoryDeviceClass *mdc = MEMORY_DEVICE_CLASS(oc);
     NVDIMMClass *nvc = NVDIMM_CLASS(oc);
     DeviceClass *dc = DEVICE_CLASS(oc);
 
     ddc->realize = nvdimm_realize;
-    ddc->get_memory_region = nvdimm_get_memory_region;
+    mdc->get_memory_region = nvdimm_md_get_memory_region;
     dc->props = nvdimm_properties;
 
     nvc->read_label_data = nvdimm_read_label_data;
diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c
index fb6bcaedc4..0c9b9e8292 100644
--- a/hw/mem/pc-dimm.c
+++ b/hw/mem/pc-dimm.c
@@ -29,72 +29,47 @@
 
 static int pc_dimm_get_free_slot(const int *hint, int max_slots, Error **errp);
 
-void pc_dimm_pre_plug(DeviceState *dev, MachineState *machine,
+void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine,
                       const uint64_t *legacy_align, Error **errp)
 {
-    PCDIMMDevice *dimm = PC_DIMM(dev);
-    PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
     Error *local_err = NULL;
-    MemoryRegion *mr;
-    uint64_t addr, align;
     int slot;
 
-    slot = object_property_get_int(OBJECT(dev), PC_DIMM_SLOT_PROP,
+    slot = object_property_get_int(OBJECT(dimm), PC_DIMM_SLOT_PROP,
                                    &error_abort);
     slot = pc_dimm_get_free_slot(slot == PC_DIMM_UNASSIGNED_SLOT ? NULL : &slot,
                                  machine->ram_slots, &local_err);
     if (local_err) {
         goto out;
     }
-    object_property_set_int(OBJECT(dev), slot, PC_DIMM_SLOT_PROP, &error_abort);
+    object_property_set_int(OBJECT(dimm), slot, PC_DIMM_SLOT_PROP,
+                            &error_abort);
     trace_mhp_pc_dimm_assigned_slot(slot);
 
-    mr = ddc->get_memory_region(dimm, &local_err);
-    if (local_err) {
-        goto out;
-    }
-
-    align = legacy_align ? *legacy_align : memory_region_get_alignment(mr);
-    addr = object_property_get_uint(OBJECT(dev), PC_DIMM_ADDR_PROP,
-                                    &error_abort);
-    addr = memory_device_get_free_addr(machine, !addr ? NULL : &addr, align,
-                                       memory_region_size(mr), &local_err);
-    if (local_err) {
-        goto out;
-    }
-    trace_mhp_pc_dimm_assigned_address(addr);
-    object_property_set_uint(OBJECT(dev), addr, PC_DIMM_ADDR_PROP,
-                             &error_abort);
+    memory_device_pre_plug(MEMORY_DEVICE(dimm), machine, legacy_align,
+                           &local_err);
 out:
     error_propagate(errp, local_err);
 }
 
-void pc_dimm_plug(DeviceState *dev, MachineState *machine, Error **errp)
+void pc_dimm_plug(PCDIMMDevice *dimm, MachineState *machine, Error **errp)
 {
-    PCDIMMDevice *dimm = PC_DIMM(dev);
     PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
     MemoryRegion *vmstate_mr = ddc->get_vmstate_memory_region(dimm,
                                                               &error_abort);
-    MemoryRegion *mr = ddc->get_memory_region(dimm, &error_abort);
-    uint64_t addr;
-
-    addr = object_property_get_uint(OBJECT(dev), PC_DIMM_ADDR_PROP,
-                                    &error_abort);
 
-    memory_device_plug_region(machine, mr, addr);
-    vmstate_register_ram(vmstate_mr, dev);
+    memory_device_plug(MEMORY_DEVICE(dimm), machine);
+    vmstate_register_ram(vmstate_mr, DEVICE(dimm));
 }
 
-void pc_dimm_unplug(DeviceState *dev, MachineState *machine)
+void pc_dimm_unplug(PCDIMMDevice *dimm, MachineState *machine)
 {
-    PCDIMMDevice *dimm = PC_DIMM(dev);
     PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
     MemoryRegion *vmstate_mr = ddc->get_vmstate_memory_region(dimm,
                                                               &error_abort);
-    MemoryRegion *mr = ddc->get_memory_region(dimm, &error_abort);
 
-    memory_device_unplug_region(machine, mr);
-    vmstate_unregister_ram(vmstate_mr, dev);
+    memory_device_unplug(MEMORY_DEVICE(dimm), machine);
+    vmstate_unregister_ram(vmstate_mr, DEVICE(dimm));
 }
 
 static int pc_dimm_slot2bitmap(Object *obj, void *opaque)
@@ -163,16 +138,14 @@ static Property pc_dimm_properties[] = {
 static void pc_dimm_get_size(Object *obj, Visitor *v, const char *name,
                              void *opaque, Error **errp)
 {
+    Error *local_err = NULL;
     uint64_t value;
-    MemoryRegion *mr;
-    PCDIMMDevice *dimm = PC_DIMM(obj);
-    PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(obj);
 
-    mr = ddc->get_memory_region(dimm, errp);
-    if (!mr) {
+    value = memory_device_get_region_size(MEMORY_DEVICE(obj), &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
         return;
     }
-    value = memory_region_size(mr);
 
     visit_type_uint64(v, name, &value, errp);
 }
@@ -236,19 +209,16 @@ static uint64_t pc_dimm_md_get_addr(const MemoryDeviceState *md)
     return dimm->addr;
 }
 
-static uint64_t pc_dimm_md_get_region_size(const MemoryDeviceState *md)
+static void pc_dimm_md_set_addr(MemoryDeviceState *md, uint64_t addr,
+                                Error **errp)
 {
-    /* dropping const here is fine as we don't touch the memory region */
-    PCDIMMDevice *dimm = PC_DIMM(md);
-    const PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(md);
-    MemoryRegion *mr;
-
-    mr = ddc->get_memory_region(dimm, &error_abort);
-    if (!mr) {
-        return 0;
-    }
+    object_property_set_uint(OBJECT(md), addr, PC_DIMM_ADDR_PROP, errp);
+}
 
-    return memory_region_size(mr);
+static MemoryRegion *pc_dimm_md_get_memory_region(MemoryDeviceState *md,
+                                                  Error **errp)
+{
+    return pc_dimm_get_memory_region(PC_DIMM(md), errp);
 }
 
 static void pc_dimm_md_fill_device_info(const MemoryDeviceState *md,
@@ -292,13 +262,13 @@ static void pc_dimm_class_init(ObjectClass *oc, void *data)
     dc->props = pc_dimm_properties;
     dc->desc = "DIMM memory module";
 
-    ddc->get_memory_region = pc_dimm_get_memory_region;
     ddc->get_vmstate_memory_region = pc_dimm_get_memory_region;
 
     mdc->get_addr = pc_dimm_md_get_addr;
+    mdc->set_addr = pc_dimm_md_set_addr;
     /* for a dimm plugged_size == region_size */
-    mdc->get_plugged_size = pc_dimm_md_get_region_size;
-    mdc->get_region_size = pc_dimm_md_get_region_size;
+    mdc->get_plugged_size = memory_device_get_region_size;
+    mdc->get_memory_region = pc_dimm_md_get_memory_region;
     mdc->fill_device_info = pc_dimm_md_fill_device_info;
 }
 
diff --git a/hw/mem/trace-events b/hw/mem/trace-events
index e150dcc497..0f2f278ff2 100644
--- a/hw/mem/trace-events
+++ b/hw/mem/trace-events
@@ -2,4 +2,7 @@
 
 # hw/mem/pc-dimm.c
 mhp_pc_dimm_assigned_slot(int slot) "%d"
-mhp_pc_dimm_assigned_address(uint64_t addr) "0x%"PRIx64
+# hw/mem/memory-device.c
+memory_device_pre_plug(const char *id, uint64_t addr) "id=%s addr=0x%"PRIx64
+memory_device_plug(const char *id, uint64_t addr) "id=%s addr=0x%"PRIx64
+memory_device_unplug(const char *id, uint64_t addr) "id=%s addr=0x%"PRIx64
diff --git a/hw/mips/gt64xxx_pci.c b/hw/mips/gt64xxx_pci.c
index 24ad0ad024..1cd8aac658 100644
--- a/hw/mips/gt64xxx_pci.c
+++ b/hw/mips/gt64xxx_pci.c
@@ -992,9 +992,9 @@ static void gt64120_pci_set_irq(void *opaque, int irq_num, int level)
 }
 
 
-static void gt64120_reset(void *opaque)
+static void gt64120_reset(DeviceState *dev)
 {
-    GT64120State *s = opaque;
+    GT64120State *s = GT64120_PCI_HOST_BRIDGE(dev);
 
     /* FIXME: Malta specific hw assumptions ahead */
 
@@ -1184,16 +1184,6 @@ PCIBus *gt64120_register(qemu_irq *pic)
     return phb->bus;
 }
 
-static int gt64120_init(SysBusDevice *dev)
-{
-    GT64120State *s;
-
-    s = GT64120_PCI_HOST_BRIDGE(dev);
-
-    qemu_register_reset(gt64120_reset, s);
-    return 0;
-}
-
 static void gt64120_pci_realize(PCIDevice *d, Error **errp)
 {
     /* FIXME: Malta specific hw assumptions ahead */
@@ -1241,9 +1231,9 @@ static const TypeInfo gt64120_pci_info = {
 static void gt64120_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
 
-    sdc->init = gt64120_init;
+    set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+    dc->reset = gt64120_reset;
     dc->vmsd = &vmstate_gt64120;
 }
 
diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
index 29b90bacf3..c1cf0fe12e 100644
--- a/hw/mips/mips_malta.c
+++ b/hw/mips/mips_malta.c
@@ -1422,23 +1422,10 @@ void mips_malta_init(MachineState *machine)
     pci_vga_init(pci_bus);
 }
 
-static int mips_malta_sysbus_device_init(SysBusDevice *sysbusdev)
-{
-    return 0;
-}
-
-static void mips_malta_class_init(ObjectClass *klass, void *data)
-{
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
-
-    k->init = mips_malta_sysbus_device_init;
-}
-
 static const TypeInfo mips_malta_device = {
     .name          = TYPE_MIPS_MALTA,
     .parent        = TYPE_SYS_BUS_DEVICE,
     .instance_size = sizeof(MaltaState),
-    .class_init    = mips_malta_class_init,
 };
 
 static void mips_malta_machine_init(MachineClass *mc)
diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c
index 8cb17b9dd4..f88910e55c 100644
--- a/hw/misc/ivshmem.c
+++ b/hw/misc/ivshmem.c
@@ -1288,8 +1288,8 @@ static void ivshmem_realize(PCIDevice *dev, Error **errp)
     IVShmemState *s = IVSHMEM_COMMON(dev);
 
     if (!qtest_enabled()) {
-        error_report("ivshmem is deprecated, please use ivshmem-plain"
-                     " or ivshmem-doorbell instead");
+        warn_report("ivshmem is deprecated, please use ivshmem-plain"
+                    " or ivshmem-doorbell instead");
     }
 
     if (qemu_chr_fe_backend_connected(&s->server_chr) + !!s->shmobj != 1) {
diff --git a/hw/net/cadence_gem.c b/hw/net/cadence_gem.c
index 1795998928..d95cc27f58 100644
--- a/hw/net/cadence_gem.c
+++ b/hw/net/cadence_gem.c
@@ -142,6 +142,7 @@
 #define GEM_DESCONF4      (0x0000028C/4)
 #define GEM_DESCONF5      (0x00000290/4)
 #define GEM_DESCONF6      (0x00000294/4)
+#define GEM_DESCONF6_64B_MASK (1U << 23)
 #define GEM_DESCONF7      (0x00000298/4)
 
 #define GEM_INT_Q1_STATUS               (0x00000400 / 4)
@@ -1283,6 +1284,7 @@ static void gem_reset(DeviceState *d)
     int i;
     CadenceGEMState *s = CADENCE_GEM(d);
     const uint8_t *a;
+    uint32_t queues_mask = 0;
 
     DB_PRINT("\n");
 
@@ -1299,7 +1301,12 @@ static void gem_reset(DeviceState *d)
     s->regs[GEM_DESCONF] = 0x02500111;
     s->regs[GEM_DESCONF2] = 0x2ab13fff;
     s->regs[GEM_DESCONF5] = 0x002f2045;
-    s->regs[GEM_DESCONF6] = 0x00000200;
+    s->regs[GEM_DESCONF6] = GEM_DESCONF6_64B_MASK;
+
+    if (s->num_priority_queues > 1) {
+        queues_mask = MAKE_64BIT_MASK(1, s->num_priority_queues - 1);
+        s->regs[GEM_DESCONF6] |= queues_mask;
+    }
 
     /* Set MAC address */
     a = &s->conf.macaddr.a[0];
diff --git a/hw/net/etraxfs_eth.c b/hw/net/etraxfs_eth.c
index a6932432b1..36855804db 100644
--- a/hw/net/etraxfs_eth.c
+++ b/hw/net/etraxfs_eth.c
@@ -23,6 +23,7 @@
  */
 
 #include "qemu/osdep.h"
+#include "qapi/error.h"
 #include "hw/sysbus.h"
 #include "net/net.h"
 #include "hw/cris/etraxfs.h"
@@ -126,7 +127,7 @@ tdk_write(struct qemu_phy *phy, unsigned int req, unsigned int data)
 }
 
 static void
-tdk_init(struct qemu_phy *phy)
+tdk_reset(struct qemu_phy *phy)
 {
     phy->regs[0] = 0x3100;
     /* PHY Id.  */
@@ -135,9 +136,6 @@ tdk_init(struct qemu_phy *phy)
     /* Autonegotiation advertisement reg.  */
     phy->regs[4] = 0x01E1;
     phy->link = 1;
-
-    phy->read = tdk_read;
-    phy->write = tdk_write;
 }
 
 struct qemu_mdio
@@ -584,14 +582,35 @@ static NetClientInfo net_etraxfs_info = {
     .link_status_changed = eth_set_link,
 };
 
-static int fs_eth_init(SysBusDevice *sbd)
+static void etraxfs_eth_reset(DeviceState *dev)
+{
+    ETRAXFSEthState *s = ETRAX_FS_ETH(dev);
+
+    memset(s->regs, 0, sizeof(s->regs));
+    memset(s->macaddr, 0, sizeof(s->macaddr));
+    s->duplex_mismatch = 0;
+
+    s->mdio_bus.mdc = 0;
+    s->mdio_bus.mdio = 0;
+    s->mdio_bus.state = 0;
+    s->mdio_bus.drive = 0;
+    s->mdio_bus.cnt = 0;
+    s->mdio_bus.addr = 0;
+    s->mdio_bus.opc = 0;
+    s->mdio_bus.req = 0;
+    s->mdio_bus.data = 0;
+
+    tdk_reset(&s->phy);
+}
+
+static void etraxfs_eth_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(sbd);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     ETRAXFSEthState *s = ETRAX_FS_ETH(dev);
 
     if (!s->dma_out || !s->dma_in) {
-        error_report("Unconnected ETRAX-FS Ethernet MAC");
-        return -1;
+        error_setg(errp, "Unconnected ETRAX-FS Ethernet MAC");
+        return;
     }
 
     s->dma_out->client.push = eth_tx_push;
@@ -608,10 +627,9 @@ static int fs_eth_init(SysBusDevice *sbd)
                           object_get_typename(OBJECT(s)), dev->id, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 
-
-    tdk_init(&s->phy);
+    s->phy.read = tdk_read;
+    s->phy.write = tdk_write;
     mdio_attach(&s->mdio_bus, &s->phy, s->phyaddr);
-    return 0;
 }
 
 static Property etraxfs_eth_properties[] = {
@@ -625,9 +643,9 @@ static Property etraxfs_eth_properties[] = {
 static void etraxfs_eth_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = fs_eth_init;
+    dc->realize = etraxfs_eth_realize;
+    dc->reset = etraxfs_eth_reset;
     dc->props = etraxfs_eth_properties;
     /* Reason: pointer properties "dma_out", "dma_in" */
     dc->user_creatable = false;
diff --git a/hw/net/lan9118.c b/hw/net/lan9118.c
index b9032dac59..a6269d9463 100644
--- a/hw/net/lan9118.c
+++ b/hw/net/lan9118.c
@@ -1320,9 +1320,9 @@ static NetClientInfo net_lan9118_info = {
     .link_status_changed = lan9118_set_link,
 };
 
-static int lan9118_init1(SysBusDevice *sbd)
+static void lan9118_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(sbd);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     lan9118_state *s = LAN9118(dev);
     QEMUBH *bh;
     int i;
@@ -1349,8 +1349,6 @@ static int lan9118_init1(SysBusDevice *sbd)
     s->timer = ptimer_init(bh, PTIMER_POLICY_DEFAULT);
     ptimer_set_freq(s->timer, 10000);
     ptimer_set_limit(s->timer, 0xffff, 1);
-
-    return 0;
 }
 
 static Property lan9118_properties[] = {
@@ -1362,12 +1360,11 @@ static Property lan9118_properties[] = {
 static void lan9118_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = lan9118_init1;
     dc->reset = lan9118_reset;
     dc->props = lan9118_properties;
     dc->vmsd = &vmstate_lan9118;
+    dc->realize = lan9118_realize;
 }
 
 static const TypeInfo lan9118_info = {
diff --git a/hw/net/lance.c b/hw/net/lance.c
index a08d5ac6a8..f987b2fd18 100644
--- a/hw/net/lance.c
+++ b/hw/net/lance.c
@@ -97,9 +97,9 @@ static const VMStateDescription vmstate_lance = {
     }
 };
 
-static int lance_init(SysBusDevice *sbd)
+static void lance_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(sbd);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     SysBusPCNetState *d = SYSBUS_PCNET(dev);
     PCNetState *s = &d->state;
 
@@ -115,7 +115,6 @@ static int lance_init(SysBusDevice *sbd)
     s->phys_mem_read = ledma_memory_read;
     s->phys_mem_write = ledma_memory_write;
     pcnet_common_init(dev, s, &net_lance_info);
-    return 0;
 }
 
 static void lance_reset(DeviceState *dev)
@@ -144,9 +143,8 @@ static Property lance_properties[] = {
 static void lance_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = lance_init;
+    dc->realize = lance_realize;
     set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
     dc->fw_name = "ethernet";
     dc->reset = lance_reset;
diff --git a/hw/net/milkymist-minimac2.c b/hw/net/milkymist-minimac2.c
index 3eaa19dfde..7ef1daee41 100644
--- a/hw/net/milkymist-minimac2.c
+++ b/hw/net/milkymist-minimac2.c
@@ -452,9 +452,9 @@ static NetClientInfo net_milkymist_minimac2_info = {
     .receive = minimac2_rx,
 };
 
-static int milkymist_minimac2_init(SysBusDevice *sbd)
+static void milkymist_minimac2_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(sbd);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     MilkymistMinimac2State *s = MILKYMIST_MINIMAC2(dev);
     size_t buffers_size = TARGET_PAGE_ALIGN(3 * MINIMAC2_BUFFER_SIZE);
 
@@ -479,8 +479,6 @@ static int milkymist_minimac2_init(SysBusDevice *sbd)
     s->nic = qemu_new_nic(&net_milkymist_minimac2_info, &s->conf,
                           object_get_typename(OBJECT(dev)), dev->id, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
-
-    return 0;
 }
 
 static const VMStateDescription vmstate_milkymist_minimac2_mdio = {
@@ -521,9 +519,8 @@ static Property milkymist_minimac2_properties[] = {
 static void milkymist_minimac2_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = milkymist_minimac2_init;
+    dc->realize = milkymist_minimac2_realize;
     dc->reset = milkymist_minimac2_reset;
     dc->vmsd = &vmstate_milkymist_minimac2;
     dc->props = milkymist_minimac2_properties;
diff --git a/hw/net/mipsnet.c b/hw/net/mipsnet.c
index 5a63df7ccb..03b3104278 100644
--- a/hw/net/mipsnet.c
+++ b/hw/net/mipsnet.c
@@ -236,9 +236,9 @@ static const MemoryRegionOps mipsnet_ioport_ops = {
     .impl.max_access_size = 4,
 };
 
-static int mipsnet_sysbus_init(SysBusDevice *sbd)
+static void mipsnet_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(sbd);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     MIPSnetState *s = MIPS_NET(dev);
 
     memory_region_init_io(&s->io, OBJECT(dev), &mipsnet_ioport_ops, s,
@@ -249,8 +249,6 @@ static int mipsnet_sysbus_init(SysBusDevice *sbd)
     s->nic = qemu_new_nic(&net_mipsnet_info, &s->conf,
                           object_get_typename(OBJECT(dev)), dev->id, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
-
-    return 0;
 }
 
 static void mipsnet_sysbus_reset(DeviceState *dev)
@@ -267,9 +265,8 @@ static Property mipsnet_properties[] = {
 static void mipsnet_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = mipsnet_sysbus_init;
+    dc->realize = mipsnet_realize;
     set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
     dc->desc = "MIPS Simulator network device";
     dc->reset = mipsnet_sysbus_reset;
diff --git a/hw/net/opencores_eth.c b/hw/net/opencores_eth.c
index d42b79c08c..d6f54f8d82 100644
--- a/hw/net/opencores_eth.c
+++ b/hw/net/opencores_eth.c
@@ -715,9 +715,9 @@ static const MemoryRegionOps open_eth_desc_ops = {
     .write = open_eth_desc_write,
 };
 
-static int sysbus_open_eth_init(SysBusDevice *sbd)
+static void sysbus_open_eth_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(sbd);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     OpenEthState *s = OPEN_ETH(dev);
 
     memory_region_init_io(&s->reg_io, OBJECT(dev), &open_eth_reg_ops, s,
@@ -732,7 +732,6 @@ static int sysbus_open_eth_init(SysBusDevice *sbd)
 
     s->nic = qemu_new_nic(&net_open_eth_info, &s->conf,
                           object_get_typename(OBJECT(s)), dev->id, s);
-    return 0;
 }
 
 static void qdev_open_eth_reset(DeviceState *dev)
@@ -750,9 +749,8 @@ static Property open_eth_properties[] = {
 static void open_eth_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = sysbus_open_eth_init;
+    dc->realize = sysbus_open_eth_realize;
     set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
     dc->desc = "Opencores 10/100 Mbit Ethernet";
     dc->reset = qdev_open_eth_reset;
diff --git a/hw/net/smc91c111.c b/hw/net/smc91c111.c
index d2fd2040e8..99da2d9297 100644
--- a/hw/net/smc91c111.c
+++ b/hw/net/smc91c111.c
@@ -766,9 +766,9 @@ static NetClientInfo net_smc91c111_info = {
     .receive = smc91c111_receive,
 };
 
-static int smc91c111_init1(SysBusDevice *sbd)
+static void smc91c111_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(sbd);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     smc91c111_state *s = SMC91C111(dev);
 
     memory_region_init_io(&s->mmio, OBJECT(s), &smc91c111_mem_ops, s,
@@ -780,7 +780,6 @@ static int smc91c111_init1(SysBusDevice *sbd)
                           object_get_typename(OBJECT(dev)), dev->id, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
     /* ??? Save/restore.  */
-    return 0;
 }
 
 static Property smc91c111_properties[] = {
@@ -791,9 +790,8 @@ static Property smc91c111_properties[] = {
 static void smc91c111_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = smc91c111_init1;
+    dc->realize = smc91c111_realize;
     dc->reset = smc91c111_reset;
     dc->vmsd = &vmstate_smc91c111;
     dc->props = smc91c111_properties;
diff --git a/hw/net/stellaris_enet.c b/hw/net/stellaris_enet.c
index 165562d788..b3375ebb45 100644
--- a/hw/net/stellaris_enet.c
+++ b/hw/net/stellaris_enet.c
@@ -457,8 +457,10 @@ static const MemoryRegionOps stellaris_enet_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static void stellaris_enet_reset(stellaris_enet_state *s)
+static void stellaris_enet_reset(DeviceState *dev)
 {
+    stellaris_enet_state *s =  STELLARIS_ENET(dev);
+
     s->mdv = 0x80;
     s->rctl = SE_RCTL_BADCRC;
     s->im = SE_INT_PHY | SE_INT_MD | SE_INT_RXER | SE_INT_FOV | SE_INT_TXEMP
@@ -473,9 +475,9 @@ static NetClientInfo net_stellaris_enet_info = {
     .receive = stellaris_enet_receive,
 };
 
-static int stellaris_enet_init(SysBusDevice *sbd)
+static void stellaris_enet_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(sbd);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     stellaris_enet_state *s = STELLARIS_ENET(dev);
 
     memory_region_init_io(&s->mmio, OBJECT(s), &stellaris_enet_ops, s,
@@ -487,9 +489,6 @@ static int stellaris_enet_init(SysBusDevice *sbd)
     s->nic = qemu_new_nic(&net_stellaris_enet_info, &s->conf,
                           object_get_typename(OBJECT(dev)), dev->id, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
-
-    stellaris_enet_reset(s);
-    return 0;
 }
 
 static Property stellaris_enet_properties[] = {
@@ -500,9 +499,9 @@ static Property stellaris_enet_properties[] = {
 static void stellaris_enet_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = stellaris_enet_init;
+    dc->realize = stellaris_enet_realize;
+    dc->reset = stellaris_enet_reset;
     dc->props = stellaris_enet_properties;
     dc->vmsd = &vmstate_stellaris_enet;
 }
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 4bdd5b8532..385b1a03e9 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -2020,10 +2020,10 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp)
 
     if (n->net_conf.tx && strcmp(n->net_conf.tx, "timer")
                        && strcmp(n->net_conf.tx, "bh")) {
-        error_report("virtio-net: "
-                     "Unknown option tx=%s, valid options: \"timer\" \"bh\"",
-                     n->net_conf.tx);
-        error_report("Defaulting to \"bh\"");
+        warn_report("virtio-net: "
+                    "Unknown option tx=%s, valid options: \"timer\" \"bh\"",
+                    n->net_conf.tx);
+        error_printf("Defaulting to \"bh\"");
     }
 
     n->net_conf.tx_queue_size = MIN(virtio_net_max_tx_queue_size(n),
diff --git a/hw/net/xgmac.c b/hw/net/xgmac.c
index fa001563d3..63f5a62ebf 100644
--- a/hw/net/xgmac.c
+++ b/hw/net/xgmac.c
@@ -374,9 +374,9 @@ static NetClientInfo net_xgmac_enet_info = {
     .receive = eth_rx,
 };
 
-static int xgmac_enet_init(SysBusDevice *sbd)
+static void xgmac_enet_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(sbd);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     XgmacState *s = XGMAC(dev);
 
     memory_region_init_io(&s->iomem, OBJECT(s), &enet_mem_ops, s,
@@ -397,8 +397,6 @@ static int xgmac_enet_init(SysBusDevice *sbd)
                                  (s->conf.macaddr.a[2] << 16) |
                                  (s->conf.macaddr.a[1] << 8) |
                                   s->conf.macaddr.a[0];
-
-    return 0;
 }
 
 static Property xgmac_properties[] = {
@@ -408,10 +406,9 @@ static Property xgmac_properties[] = {
 
 static void xgmac_enet_class_init(ObjectClass *klass, void *data)
 {
-    SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
     DeviceClass *dc = DEVICE_CLASS(klass);
 
-    sbc->init = xgmac_enet_init;
+    dc->realize = xgmac_enet_realize;
     dc->vmsd = &vmstate_xgmac;
     dc->props = xgmac_properties;
 }
diff --git a/hw/pci-host/bonito.c b/hw/pci-host/bonito.c
index 9868e2eccc..9f33582706 100644
--- a/hw/pci-host/bonito.c
+++ b/hw/pci-host/bonito.c
@@ -595,7 +595,7 @@ static const VMStateDescription vmstate_bonito = {
     }
 };
 
-static int bonito_pcihost_initfn(SysBusDevice *dev)
+static void bonito_pcihost_realize(DeviceState *dev, Error **errp)
 {
     PCIHostState *phb = PCI_HOST_BRIDGE(dev);
 
@@ -603,8 +603,6 @@ static int bonito_pcihost_initfn(SysBusDevice *dev)
                                      pci_bonito_set_irq, pci_bonito_map_irq,
                                      dev, get_system_memory(), get_system_io(),
                                      0x28, 32, TYPE_PCI_BUS);
-
-    return 0;
 }
 
 static void bonito_realize(PCIDevice *dev, Error **errp)
@@ -684,7 +682,6 @@ PCIBus *bonito_init(qemu_irq *pic)
     pcihost->pic = pic;
     qdev_init_nofail(dev);
 
-    /* set the pcihost pointer before bonito_initfn is called */
     d = pci_create(phb->bus, PCI_DEVFN(0, 0), TYPE_PCI_BONITO);
     s = PCI_BONITO(d);
     s->pcihost = pcihost;
@@ -726,9 +723,9 @@ static const TypeInfo bonito_info = {
 
 static void bonito_pcihost_class_init(ObjectClass *klass, void *data)
 {
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+    DeviceClass *dc = DEVICE_CLASS(klass);
 
-    k->init = bonito_pcihost_initfn;
+    dc->realize = bonito_pcihost_realize;
 }
 
 static const TypeInfo bonito_pcihost_info = {
diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
index 9750464bf4..ad1bcc7990 100644
--- a/hw/ppc/pnv_core.c
+++ b/hw/ppc/pnv_core.c
@@ -148,8 +148,8 @@ static void pnv_core_realize(DeviceState *dev, Error **errp)
 
     chip = object_property_get_link(OBJECT(dev), "chip", &local_err);
     if (!chip) {
-        error_propagate(errp, local_err);
-        error_prepend(errp, "required link 'chip' not found: ");
+        error_propagate_prepend(errp, local_err,
+                                "required link 'chip' not found: ");
         return;
     }
 
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 98868d893a..c08130facb 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -3128,14 +3128,12 @@ static void spapr_memory_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
     Error *local_err = NULL;
     sPAPRMachineState *ms = SPAPR_MACHINE(hotplug_dev);
     PCDIMMDevice *dimm = PC_DIMM(dev);
-    PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
-    MemoryRegion *mr = ddc->get_memory_region(dimm, &error_abort);
     uint64_t size, addr;
     uint32_t node;
 
-    size = memory_region_size(mr);
+    size = memory_device_get_region_size(MEMORY_DEVICE(dev), &error_abort);
 
-    pc_dimm_plug(dev, MACHINE(ms), &local_err);
+    pc_dimm_plug(dimm, MACHINE(ms), &local_err);
     if (local_err) {
         goto out;
     }
@@ -3158,7 +3156,7 @@ static void spapr_memory_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
     return;
 
 out_unplug:
-    pc_dimm_unplug(dev, MACHINE(ms));
+    pc_dimm_unplug(dimm, MACHINE(ms));
 out:
     error_propagate(errp, local_err);
 }
@@ -3169,9 +3167,7 @@ static void spapr_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
     const sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(hotplug_dev);
     sPAPRMachineState *spapr = SPAPR_MACHINE(hotplug_dev);
     PCDIMMDevice *dimm = PC_DIMM(dev);
-    PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
     Error *local_err = NULL;
-    MemoryRegion *mr;
     uint64_t size;
     Object *memdev;
     hwaddr pagesize;
@@ -3181,11 +3177,11 @@ static void spapr_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
         return;
     }
 
-    mr = ddc->get_memory_region(dimm, errp);
-    if (!mr) {
+    size = memory_device_get_region_size(MEMORY_DEVICE(dimm), &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
         return;
     }
-    size = memory_region_size(mr);
 
     if (size % SPAPR_MEMORY_BLOCK_SIZE) {
         error_setg(errp, "Hotplugged memory size must be a multiple of "
@@ -3202,7 +3198,7 @@ static void spapr_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
         return;
     }
 
-    pc_dimm_pre_plug(dev, MACHINE(hotplug_dev), NULL, errp);
+    pc_dimm_pre_plug(dimm, MACHINE(hotplug_dev), NULL, errp);
 }
 
 struct sPAPRDIMMState {
@@ -3257,9 +3253,8 @@ static sPAPRDIMMState *spapr_recover_pending_dimm_state(sPAPRMachineState *ms,
                                                         PCDIMMDevice *dimm)
 {
     sPAPRDRConnector *drc;
-    PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
-    MemoryRegion *mr = ddc->get_memory_region(dimm, &error_abort);
-    uint64_t size = memory_region_size(mr);
+    uint64_t size = memory_device_get_region_size(MEMORY_DEVICE(dimm),
+                                                  &error_abort);
     uint32_t nr_lmbs = size / SPAPR_MEMORY_BLOCK_SIZE;
     uint32_t avail_lmbs = 0;
     uint64_t addr_start, addr;
@@ -3314,7 +3309,7 @@ static void spapr_memory_unplug(HotplugHandler *hotplug_dev, DeviceState *dev)
     sPAPRMachineState *spapr = SPAPR_MACHINE(hotplug_dev);
     sPAPRDIMMState *ds = spapr_pending_dimm_unplugs_find(spapr, PC_DIMM(dev));
 
-    pc_dimm_unplug(dev, MACHINE(hotplug_dev));
+    pc_dimm_unplug(PC_DIMM(dev), MACHINE(hotplug_dev));
     object_unparent(OBJECT(dev));
     spapr_pending_dimm_unplugs_remove(spapr, ds);
 }
@@ -3325,14 +3320,12 @@ static void spapr_memory_unplug_request(HotplugHandler *hotplug_dev,
     sPAPRMachineState *spapr = SPAPR_MACHINE(hotplug_dev);
     Error *local_err = NULL;
     PCDIMMDevice *dimm = PC_DIMM(dev);
-    PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
-    MemoryRegion *mr = ddc->get_memory_region(dimm, &error_abort);
     uint32_t nr_lmbs;
     uint64_t size, addr_start, addr;
     int i;
     sPAPRDRConnector *drc;
 
-    size = memory_region_size(mr);
+    size = memory_device_get_region_size(MEMORY_DEVICE(dimm), &error_abort);
     nr_lmbs = size / SPAPR_MEMORY_BLOCK_SIZE;
 
     addr_start = object_property_get_uint(OBJECT(dimm), PC_DIMM_ADDR_PROP,
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index c2271e6ed4..58afa46204 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -1724,16 +1724,15 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp)
         if (smc->legacy_irq_allocation) {
             irq = spapr_irq_findone(spapr, &local_err);
             if (local_err) {
-                error_propagate(errp, local_err);
-                error_prepend(errp, "can't allocate LSIs: ");
+                error_propagate_prepend(errp, local_err,
+                                        "can't allocate LSIs: ");
                 return;
             }
         }
 
         spapr_irq_claim(spapr, irq, true, &local_err);
         if (local_err) {
-            error_propagate(errp, local_err);
-            error_prepend(errp, "can't allocate LSIs: ");
+            error_propagate_prepend(errp, local_err, "can't allocate LSIs: ");
             return;
         }
 
diff --git a/hw/riscv/sifive_clint.c b/hw/riscv/sifive_clint.c
index 7cc606e065..0d2fd52487 100644
--- a/hw/riscv/sifive_clint.c
+++ b/hw/riscv/sifive_clint.c
@@ -47,12 +47,12 @@ static void sifive_clint_write_timecmp(RISCVCPU *cpu, uint64_t value)
     if (cpu->env.timecmp <= rtc_r) {
         /* if we're setting an MTIMECMP value in the "past",
            immediately raise the timer interrupt */
-        riscv_set_local_interrupt(cpu, MIP_MTIP, 1);
+        riscv_cpu_update_mip(cpu, MIP_MTIP, BOOL_TO_MASK(1));
         return;
     }
 
     /* otherwise, set up the future timer interrupt */
-    riscv_set_local_interrupt(cpu, MIP_MTIP, 0);
+    riscv_cpu_update_mip(cpu, MIP_MTIP, BOOL_TO_MASK(0));
     diff = cpu->env.timecmp - rtc_r;
     /* back to ns (note args switched in muldiv64) */
     next = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
@@ -67,7 +67,7 @@ static void sifive_clint_write_timecmp(RISCVCPU *cpu, uint64_t value)
 static void sifive_clint_timer_cb(void *opaque)
 {
     RISCVCPU *cpu = opaque;
-    riscv_set_local_interrupt(cpu, MIP_MTIP, 1);
+    riscv_cpu_update_mip(cpu, MIP_MTIP, BOOL_TO_MASK(1));
 }
 
 /* CPU wants to read rtc or timecmp register */
@@ -132,7 +132,7 @@ static void sifive_clint_write(void *opaque, hwaddr addr, uint64_t value,
         if (!env) {
             error_report("clint: invalid timecmp hartid: %zu", hartid);
         } else if ((addr & 0x3) == 0) {
-            riscv_set_local_interrupt(RISCV_CPU(cpu), MIP_MSIP, value != 0);
+            riscv_cpu_update_mip(RISCV_CPU(cpu), MIP_MSIP, BOOL_TO_MASK(value));
         } else {
             error_report("clint: invalid sip write: %08x", (uint32_t)addr);
         }
diff --git a/hw/riscv/sifive_plic.c b/hw/riscv/sifive_plic.c
index f635e6ff67..9cf9a1f986 100644
--- a/hw/riscv/sifive_plic.c
+++ b/hw/riscv/sifive_plic.c
@@ -142,10 +142,10 @@ static void sifive_plic_update(SiFivePLICState *plic)
         int level = sifive_plic_irqs_pending(plic, addrid);
         switch (mode) {
         case PLICMode_M:
-            riscv_set_local_interrupt(RISCV_CPU(cpu), MIP_MEIP, level);
+            riscv_cpu_update_mip(RISCV_CPU(cpu), MIP_MEIP, BOOL_TO_MASK(level));
             break;
         case PLICMode_S:
-            riscv_set_local_interrupt(RISCV_CPU(cpu), MIP_SEIP, level);
+            riscv_cpu_update_mip(RISCV_CPU(cpu), MIP_SEIP, BOOL_TO_MASK(level));
             break;
         default:
             break;
diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c
index 862f8ff5f7..ef07df2442 100644
--- a/hw/riscv/sifive_u.c
+++ b/hw/riscv/sifive_u.c
@@ -230,7 +230,9 @@ static void create_fdt(SiFiveUState *s, const struct MemmapEntry *memmap,
 
     qemu_fdt_add_subnode(fdt, "/chosen");
     qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", nodename);
-    qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
+    if (cmdline) {
+        qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
+    }
     g_free(nodename);
 }
 
diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c
index be5ef85e81..8a712ed490 100644
--- a/hw/riscv/spike.c
+++ b/hw/riscv/spike.c
@@ -156,8 +156,10 @@ static void create_fdt(SpikeState *s, const struct MemmapEntry *memmap,
     g_free(cells);
     g_free(nodename);
 
-    qemu_fdt_add_subnode(fdt, "/chosen");
-    qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
+    if (cmdline) {
+        qemu_fdt_add_subnode(fdt, "/chosen");
+        qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
+    }
  }
 
 static void spike_v1_10_0_board_init(MachineState *machine)
diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index 005169eabc..4a137a503c 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -254,7 +254,9 @@ static void *create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap,
 
     qemu_fdt_add_subnode(fdt, "/chosen");
     qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", nodename);
-    qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
+    if (cmdline) {
+        qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
+    }
     g_free(nodename);
 
     return fdt;
@@ -385,6 +387,8 @@ static void riscv_virt_board_init(MachineState *machine)
     serial_mm_init(system_memory, memmap[VIRT_UART0].base,
         0, qdev_get_gpio_in(DEVICE(s->plic), UART0_IRQ), 399193,
         serial_hd(0), DEVICE_LITTLE_ENDIAN);
+
+    g_free(plic_hart_config);
 }
 
 static void riscv_virt_board_machine_init(MachineClass *mc)
diff --git a/hw/sd/ssi-sd.c b/hw/sd/ssi-sd.c
index 95a143bfba..623d0333e8 100644
--- a/hw/sd/ssi-sd.c
+++ b/hw/sd/ssi-sd.c
@@ -284,6 +284,8 @@ static void ssi_sd_class_init(ObjectClass *klass, void *data)
     k->cs_polarity = SSI_CS_LOW;
     dc->vmsd = &vmstate_ssi_sd;
     dc->reset = ssi_sd_reset;
+    /* Reason: init() method uses drive_get_next() */
+    dc->user_creatable = false;
 }
 
 static const TypeInfo ssi_sd_info = {
diff --git a/hw/sh4/sh_pci.c b/hw/sh4/sh_pci.c
index 4ec2e35500..379d0685ed 100644
--- a/hw/sh4/sh_pci.c
+++ b/hw/sh4/sh_pci.c
@@ -120,16 +120,15 @@ static void sh_pci_set_irq(void *opaque, int irq_num, int level)
     qemu_set_irq(pic[irq_num], level);
 }
 
-static int sh_pci_device_init(SysBusDevice *dev)
+static void sh_pci_device_realize(DeviceState *dev, Error **errp)
 {
-    PCIHostState *phb;
-    SHPCIState *s;
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
+    SHPCIState *s = SH_PCI_HOST_BRIDGE(dev);
+    PCIHostState *phb = PCI_HOST_BRIDGE(s);
     int i;
 
-    s = SH_PCI_HOST_BRIDGE(dev);
-    phb = PCI_HOST_BRIDGE(s);
     for (i = 0; i < 4; i++) {
-        sysbus_init_irq(dev, &s->irq[i]);
+        sysbus_init_irq(sbd, &s->irq[i]);
     }
     phb->bus = pci_register_root_bus(DEVICE(dev), "pci",
                                      sh_pci_set_irq, sh_pci_map_irq,
@@ -143,13 +142,12 @@ static int sh_pci_device_init(SysBusDevice *dev)
                              &s->memconfig_p4, 0, 0x224);
     memory_region_init_alias(&s->isa, OBJECT(s), "sh_pci.isa",
                              get_system_io(), 0, 0x40000);
-    sysbus_init_mmio(dev, &s->memconfig_p4);
-    sysbus_init_mmio(dev, &s->memconfig_a7);
+    sysbus_init_mmio(sbd, &s->memconfig_p4);
+    sysbus_init_mmio(sbd, &s->memconfig_a7);
     s->iobr = 0xfe240000;
     memory_region_add_subregion(get_system_memory(), s->iobr, &s->isa);
 
     s->dev = pci_create_simple(phb->bus, PCI_DEVFN(0, 0), "sh_pci_host");
-    return 0;
 }
 
 static void sh_pci_host_realize(PCIDevice *d, Error **errp)
@@ -187,9 +185,9 @@ static const TypeInfo sh_pci_host_info = {
 
 static void sh_pci_device_class_init(ObjectClass *klass, void *data)
 {
-    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
+    DeviceClass *dc = DEVICE_CLASS(klass);
 
-    sdc->init = sh_pci_device_init;
+    dc->realize = sh_pci_device_realize;
 }
 
 static const TypeInfo sh_pci_device_info = {
diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c
index a27e54b2fa..920939454e 100644
--- a/hw/smbios/smbios.c
+++ b/hw/smbios/smbios.c
@@ -950,6 +950,7 @@ static void save_opt_list(size_t *ndest, const char ***dest,
 
 void smbios_entry_add(QemuOpts *opts, Error **errp)
 {
+    Error *err = NULL;
     const char *val;
 
     assert(!smbios_immutable);
@@ -960,12 +961,16 @@ void smbios_entry_add(QemuOpts *opts, Error **errp)
         int size;
         struct smbios_table *table; /* legacy mode only */
 
-        qemu_opts_validate(opts, qemu_smbios_file_opts, &error_fatal);
+        qemu_opts_validate(opts, qemu_smbios_file_opts, &err);
+        if (err) {
+            error_propagate(errp, err);
+            return;
+        }
 
         size = get_image_size(val);
         if (size == -1 || size < sizeof(struct smbios_structure_header)) {
-            error_report("Cannot read SMBIOS file %s", val);
-            exit(1);
+            error_setg(errp, "Cannot read SMBIOS file %s", val);
+            return;
         }
 
         /*
@@ -978,14 +983,15 @@ void smbios_entry_add(QemuOpts *opts, Error **errp)
                                                     smbios_tables_len);
 
         if (load_image(val, (uint8_t *)header) != size) {
-            error_report("Failed to load SMBIOS file %s", val);
-            exit(1);
+            error_setg(errp, "Failed to load SMBIOS file %s", val);
+            return;
         }
 
         if (test_bit(header->type, have_fields_bitmap)) {
-            error_report("can't load type %d struct, fields already specified!",
-                         header->type);
-            exit(1);
+            error_setg(errp,
+                       "can't load type %d struct, fields already specified!",
+                       header->type);
+            return;
         }
         set_bit(header->type, have_binfile_bitmap);
 
@@ -1030,19 +1036,23 @@ void smbios_entry_add(QemuOpts *opts, Error **errp)
         unsigned long type = strtoul(val, NULL, 0);
 
         if (type > SMBIOS_MAX_TYPE) {
-            error_report("out of range!");
-            exit(1);
+            error_setg(errp, "out of range!");
+            return;
         }
 
         if (test_bit(type, have_binfile_bitmap)) {
-            error_report("can't add fields, binary file already loaded!");
-            exit(1);
+            error_setg(errp, "can't add fields, binary file already loaded!");
+            return;
         }
         set_bit(type, have_fields_bitmap);
 
         switch (type) {
         case 0:
-            qemu_opts_validate(opts, qemu_smbios_type0_opts, &error_fatal);
+            qemu_opts_validate(opts, qemu_smbios_type0_opts, &err);
+            if (err) {
+                error_propagate(errp, err);
+                return;
+            }
             save_opt(&type0.vendor, opts, "vendor");
             save_opt(&type0.version, opts, "version");
             save_opt(&type0.date, opts, "date");
@@ -1051,14 +1061,18 @@ void smbios_entry_add(QemuOpts *opts, Error **errp)
             val = qemu_opt_get(opts, "release");
             if (val) {
                 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) {
-                    error_report("Invalid release");
-                    exit(1);
+                    error_setg(errp, "Invalid release");
+                    return;
                 }
                 type0.have_major_minor = true;
             }
             return;
         case 1:
-            qemu_opts_validate(opts, qemu_smbios_type1_opts, &error_fatal);
+            qemu_opts_validate(opts, qemu_smbios_type1_opts, &err);
+            if (err) {
+                error_propagate(errp, err);
+                return;
+            }
             save_opt(&type1.manufacturer, opts, "manufacturer");
             save_opt(&type1.product, opts, "product");
             save_opt(&type1.version, opts, "version");
@@ -1069,14 +1083,18 @@ void smbios_entry_add(QemuOpts *opts, Error **errp)
             val = qemu_opt_get(opts, "uuid");
             if (val) {
                 if (qemu_uuid_parse(val, &qemu_uuid) != 0) {
-                    error_report("Invalid UUID");
-                    exit(1);
+                    error_setg(errp, "Invalid UUID");
+                    return;
                 }
                 qemu_uuid_set = true;
             }
             return;
         case 2:
-            qemu_opts_validate(opts, qemu_smbios_type2_opts, &error_fatal);
+            qemu_opts_validate(opts, qemu_smbios_type2_opts, &err);
+            if (err) {
+                error_propagate(errp, err);
+                return;
+            }
             save_opt(&type2.manufacturer, opts, "manufacturer");
             save_opt(&type2.product, opts, "product");
             save_opt(&type2.version, opts, "version");
@@ -1085,7 +1103,11 @@ void smbios_entry_add(QemuOpts *opts, Error **errp)
             save_opt(&type2.location, opts, "location");
             return;
         case 3:
-            qemu_opts_validate(opts, qemu_smbios_type3_opts, &error_fatal);
+            qemu_opts_validate(opts, qemu_smbios_type3_opts, &err);
+            if (err) {
+                error_propagate(errp, err);
+                return;
+            }
             save_opt(&type3.manufacturer, opts, "manufacturer");
             save_opt(&type3.version, opts, "version");
             save_opt(&type3.serial, opts, "serial");
@@ -1093,7 +1115,11 @@ void smbios_entry_add(QemuOpts *opts, Error **errp)
             save_opt(&type3.sku, opts, "sku");
             return;
         case 4:
-            qemu_opts_validate(opts, qemu_smbios_type4_opts, &error_fatal);
+            qemu_opts_validate(opts, qemu_smbios_type4_opts, &err);
+            if (err) {
+                error_propagate(errp, err);
+                return;
+            }
             save_opt(&type4.sock_pfx, opts, "sock_pfx");
             save_opt(&type4.manufacturer, opts, "manufacturer");
             save_opt(&type4.version, opts, "version");
@@ -1102,11 +1128,19 @@ void smbios_entry_add(QemuOpts *opts, Error **errp)
             save_opt(&type4.part, opts, "part");
             return;
         case 11:
-            qemu_opts_validate(opts, qemu_smbios_type11_opts, &error_fatal);
+            qemu_opts_validate(opts, qemu_smbios_type11_opts, &err);
+            if (err) {
+                error_propagate(errp, err);
+                return;
+            }
             save_opt_list(&type11.nvalues, &type11.values, opts, "value");
             return;
         case 17:
-            qemu_opts_validate(opts, qemu_smbios_type17_opts, &error_fatal);
+            qemu_opts_validate(opts, qemu_smbios_type17_opts, &err);
+            if (err) {
+                error_propagate(errp, err);
+                return;
+            }
             save_opt(&type17.loc_pfx, opts, "loc_pfx");
             save_opt(&type17.bank, opts, "bank");
             save_opt(&type17.manufacturer, opts, "manufacturer");
@@ -1116,12 +1150,12 @@ void smbios_entry_add(QemuOpts *opts, Error **errp)
             type17.speed = qemu_opt_get_number(opts, "speed", 0);
             return;
         default:
-            error_report("Don't know how to build fields for SMBIOS type %ld",
-                         type);
-            exit(1);
+            error_setg(errp,
+                       "Don't know how to build fields for SMBIOS type %ld",
+                       type);
+            return;
         }
     }
 
-    error_report("Must specify type= or file=");
-    exit(1);
+    error_setg(errp, "Must specify type= or file=");
 }
diff --git a/hw/sparc64/niagara.c b/hw/sparc64/niagara.c
index 4fa8cb2904..f8a856f611 100644
--- a/hw/sparc64/niagara.c
+++ b/hw/sparc64/niagara.c
@@ -29,7 +29,7 @@
 #include "hw/hw.h"
 #include "hw/boards.h"
 #include "hw/char/serial.h"
-#include "hw/empty_slot.h"
+#include "hw/misc/unimp.h"
 #include "hw/loader.h"
 #include "hw/sparc/sparc64.h"
 #include "hw/timer/sun4v-rtc.h"
@@ -161,7 +161,7 @@ static void niagara_init(MachineState *machine)
         serial_mm_init(sysmem, NIAGARA_UART_BASE, 0, NULL, 115200,
                        serial_hd(0), DEVICE_BIG_ENDIAN);
     }
-    empty_slot_init(NIAGARA_IOBBASE, NIAGARA_IOBSIZE);
+    create_unimplemented_device("sun4v-iob", NIAGARA_IOBBASE, NIAGARA_IOBSIZE);
     sun4v_rtc_init(NIAGARA_RTC_BASE);
 }
 
diff --git a/hw/ssi/xilinx_spi.c b/hw/ssi/xilinx_spi.c
index 83585bc8b2..3dae303d5b 100644
--- a/hw/ssi/xilinx_spi.c
+++ b/hw/ssi/xilinx_spi.c
@@ -319,9 +319,9 @@ static const MemoryRegionOps spi_ops = {
     }
 };
 
-static int xilinx_spi_init(SysBusDevice *sbd)
+static void xilinx_spi_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(sbd);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     XilinxSPI *s = XILINX_SPI(dev);
     int i;
 
@@ -344,8 +344,6 @@ static int xilinx_spi_init(SysBusDevice *sbd)
 
     fifo8_create(&s->tx_fifo, FIFO_CAPACITY);
     fifo8_create(&s->rx_fifo, FIFO_CAPACITY);
-
-    return 0;
 }
 
 static const VMStateDescription vmstate_xilinx_spi = {
@@ -368,9 +366,8 @@ static Property xilinx_spi_properties[] = {
 static void xilinx_spi_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = xilinx_spi_init;
+    dc->realize = xilinx_spi_realize;
     dc->reset = xlx_spi_reset;
     dc->props = xilinx_spi_properties;
     dc->vmsd = &vmstate_xilinx_spi;
diff --git a/hw/timer/aspeed_timer.c b/hw/timer/aspeed_timer.c
index 54b400b94a..5c786e5128 100644
--- a/hw/timer/aspeed_timer.c
+++ b/hw/timer/aspeed_timer.c
@@ -454,8 +454,7 @@ static void aspeed_timer_realize(DeviceState *dev, Error **errp)
 
     obj = object_property_get_link(OBJECT(dev), "scu", &err);
     if (!obj) {
-        error_propagate(errp, err);
-        error_prepend(errp, "required link 'scu' not found: ");
+        error_propagate_prepend(errp, err, "required link 'scu' not found: ");
         return;
     }
     s->scu = ASPEED_SCU(obj);
diff --git a/hw/timer/sun4v-rtc.c b/hw/timer/sun4v-rtc.c
index 310523225f..4e7f6a1eff 100644
--- a/hw/timer/sun4v-rtc.c
+++ b/hw/timer/sun4v-rtc.c
@@ -14,15 +14,8 @@
 #include "hw/sysbus.h"
 #include "qemu/timer.h"
 #include "hw/timer/sun4v-rtc.h"
+#include "trace.h"
 
-//#define DEBUG_SUN4V_RTC
-
-#ifdef DEBUG_SUN4V_RTC
-#define DPRINTF(fmt, ...)                                       \
-    do { printf("sun4v_rtc: " fmt , ## __VA_ARGS__); } while (0)
-#else
-#define DPRINTF(fmt, ...) do {} while (0)
-#endif
 
 #define TYPE_SUN4V_RTC "sun4v_rtc"
 #define SUN4V_RTC(obj) OBJECT_CHECK(Sun4vRtc, (obj), TYPE_SUN4V_RTC)
@@ -41,14 +34,14 @@ static uint64_t sun4v_rtc_read(void *opaque, hwaddr addr,
         /* accessing the high 32 bits */
         val >>= 32;
     }
-    DPRINTF("read from " TARGET_FMT_plx " val %lx\n", addr, val);
+    trace_sun4v_rtc_read(addr, val);
     return val;
 }
 
 static void sun4v_rtc_write(void *opaque, hwaddr addr,
                              uint64_t val, unsigned size)
 {
-    DPRINTF("write 0x%x to " TARGET_FMT_plx "\n", (unsigned)val, addr);
+    trace_sun4v_rtc_read(addr, val);
 }
 
 static const MemoryRegionOps sun4v_rtc_ops = {
@@ -70,21 +63,21 @@ void sun4v_rtc_init(hwaddr addr)
     sysbus_mmio_map(s, 0, addr);
 }
 
-static int sun4v_rtc_init1(SysBusDevice *dev)
+static void sun4v_rtc_realize(DeviceState *dev, Error **errp)
 {
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     Sun4vRtc *s = SUN4V_RTC(dev);
 
     memory_region_init_io(&s->iomem, OBJECT(s), &sun4v_rtc_ops, s,
                           "sun4v-rtc", 0x08ULL);
-    sysbus_init_mmio(dev, &s->iomem);
-    return 0;
+    sysbus_init_mmio(sbd, &s->iomem);
 }
 
 static void sun4v_rtc_class_init(ObjectClass *klass, void *data)
 {
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+    DeviceClass *dc = DEVICE_CLASS(klass);
 
-    k->init = sun4v_rtc_init1;
+    dc->realize = sun4v_rtc_realize;
 }
 
 static const TypeInfo sun4v_rtc_info = {
diff --git a/hw/timer/trace-events b/hw/timer/trace-events
index fa4213df5b..75bd3b1042 100644
--- a/hw/timer/trace-events
+++ b/hw/timer/trace-events
@@ -56,7 +56,7 @@ systick_timer_tick(void) "systick reload"
 systick_read(uint64_t addr, uint32_t value, unsigned size) "systick read addr 0x%" PRIx64 " data 0x%" PRIx32 " size %u"
 systick_write(uint64_t addr, uint32_t value, unsigned size) "systick write addr 0x%" PRIx64 " data 0x%" PRIx32 " size %u"
 
-# hw/char/cmsdk_apb_timer.c
+# hw/timer/cmsdk_apb_timer.c
 cmsdk_apb_timer_read(uint64_t offset, uint64_t data, unsigned size) "CMSDK APB timer read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
 cmsdk_apb_timer_write(uint64_t offset, uint64_t data, unsigned size) "CMSDK APB timer write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
 cmsdk_apb_timer_reset(void) "CMSDK APB timer: reset"
@@ -66,5 +66,9 @@ cmsdk_apb_dualtimer_read(uint64_t offset, uint64_t data, unsigned size) "CMSDK A
 cmsdk_apb_dualtimer_write(uint64_t offset, uint64_t data, unsigned size) "CMSDK APB dualtimer write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
 cmsdk_apb_dualtimer_reset(void) "CMSDK APB dualtimer: reset"
 
+# hw/timer/sun4v-rtc.c
+sun4v_rtc_read(uint64_t addr, uint64_t value) "read: addr 0x%" PRIx64 " value 0x%" PRIx64
+sun4v_rtc_write(uint64_t addr, uint64_t value) "write: addr 0x%" PRIx64 " value 0x%" PRIx64
+
 # hw/timer/xlnx-zynqmp-rtc.c
 xlnx_zynqmp_rtc_gettime(int year, int month, int day, int hour, int min, int sec) "Get time from host: %d-%d-%d %2d:%02d:%02d"
diff --git a/hw/usb/bus.c b/hw/usb/bus.c
index 11f7720d71..bf796d67e6 100644
--- a/hw/usb/bus.c
+++ b/hw/usb/bus.c
@@ -340,8 +340,9 @@ static USBDevice *usb_try_create_simple(USBBus *bus, const char *name,
     }
     object_property_set_bool(OBJECT(dev), true, "realized", &err);
     if (err) {
-        error_propagate(errp, err);
-        error_prepend(errp, "Failed to initialize USB device '%s': ", name);
+        error_propagate_prepend(errp, err,
+                                "Failed to initialize USB device '%s': ",
+                                name);
         return NULL;
     }
     return dev;
diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c
index 481fd08df7..eae31c74d6 100644
--- a/hw/vfio/pci-quirks.c
+++ b/hw/vfio/pci-quirks.c
@@ -1670,7 +1670,7 @@ static void vfio_probe_igd_bar4_quirk(VFIOPCIDevice *vdev, int nr)
      * but also no point in us enabling VGA if disabled in hardware.
      */
     if (!(gmch & 0x2) && !vdev->vga && vfio_populate_vga(vdev, &err)) {
-        error_reportf_err(err, ERR_PREFIX, vdev->vbasedev.name);
+        error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
         error_report("IGD device %s failed to enable VGA access, "
                      "legacy mode disabled", vdev->vbasedev.name);
         goto out;
@@ -1696,7 +1696,7 @@ static void vfio_probe_igd_bar4_quirk(VFIOPCIDevice *vdev, int nr)
     ret = vfio_pci_igd_opregion_init(vdev, opregion, &err);
     if (ret) {
         error_append_hint(&err, "IGD legacy mode disabled\n");
-        error_reportf_err(err, ERR_PREFIX, vdev->vbasedev.name);
+        error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
         goto out;
     }
 
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 8b73582d51..5c7bd96984 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -252,7 +252,7 @@ static void vfio_intx_update(PCIDevice *pdev)
 
     vfio_intx_enable_kvm(vdev, &err);
     if (err) {
-        error_reportf_err(err, WARN_PREFIX, vdev->vbasedev.name);
+        warn_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
     }
 
     /* Re-enable the interrupt in cased we missed an EOI */
@@ -317,7 +317,7 @@ static int vfio_intx_enable(VFIOPCIDevice *vdev, Error **errp)
 
     vfio_intx_enable_kvm(vdev, &err);
     if (err) {
-        error_reportf_err(err, WARN_PREFIX, vdev->vbasedev.name);
+        warn_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
     }
 
     vdev->interrupt = VFIO_INT_INTx;
@@ -745,7 +745,7 @@ static void vfio_msi_disable_common(VFIOPCIDevice *vdev)
 
     vfio_intx_enable(vdev, &err);
     if (err) {
-        error_reportf_err(err, ERR_PREFIX, vdev->vbasedev.name);
+        error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
     }
 }
 
@@ -1283,8 +1283,7 @@ static int vfio_msi_setup(VFIOPCIDevice *vdev, int pos, Error **errp)
         if (ret == -ENOTSUP) {
             return 0;
         }
-        error_prepend(&err, "msi_init failed: ");
-        error_propagate(errp, err);
+        error_propagate_prepend(errp, err, "msi_init failed: ");
         return ret;
     }
     vdev->msi_cap_size = 0xa + (msi_maskbit ? 0xa : 0) + (msi_64bit ? 0x4 : 0);
@@ -1558,7 +1557,7 @@ static int vfio_msix_setup(VFIOPCIDevice *vdev, int pos, Error **errp)
                     &err);
     if (ret < 0) {
         if (ret == -ENOTSUP) {
-            error_report_err(err);
+            warn_report_err(err);
             return 0;
         }
 
@@ -2197,7 +2196,7 @@ static void vfio_pci_post_reset(VFIOPCIDevice *vdev)
 
     vfio_intx_enable(vdev, &err);
     if (err) {
-        error_reportf_err(err, ERR_PREFIX, vdev->vbasedev.name);
+        error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
     }
 
     for (nr = 0; nr < PCI_NUM_REGIONS - 1; ++nr) {
@@ -2591,9 +2590,9 @@ static void vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
     } else if (irq_info.count == 1) {
         vdev->pci_aer = true;
     } else {
-        error_report(WARN_PREFIX
-                     "Could not enable error recovery for the device",
-                     vbasedev->name);
+        warn_report(VFIO_MSG_PREFIX
+                    "Could not enable error recovery for the device",
+                    vbasedev->name);
     }
 }
 
@@ -2718,7 +2717,7 @@ static void vfio_req_notifier_handler(void *opaque)
 
     qdev_unplug(&vdev->pdev.qdev, &err);
     if (err) {
-        error_reportf_err(err, WARN_PREFIX, vdev->vbasedev.name);
+        warn_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
     }
 }
 
@@ -2831,7 +2830,7 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
 
     if (stat(vdev->vbasedev.sysfsdev, &st) < 0) {
         error_setg_errno(errp, errno, "no such host device");
-        error_prepend(errp, ERR_PREFIX, vdev->vbasedev.sysfsdev);
+        error_prepend(errp, VFIO_MSG_PREFIX, vdev->vbasedev.sysfsdev);
         return;
     }
 
@@ -3086,7 +3085,7 @@ out_teardown:
     vfio_teardown_msi(vdev);
     vfio_bars_exit(vdev);
 error:
-    error_prepend(errp, ERR_PREFIX, vdev->vbasedev.name);
+    error_prepend(errp, VFIO_MSG_PREFIX, vdev->vbasedev.name);
 }
 
 static void vfio_instance_finalize(Object *obj)
diff --git a/hw/vfio/platform.c b/hw/vfio/platform.c
index 64c1af653d..398db38f14 100644
--- a/hw/vfio/platform.c
+++ b/hw/vfio/platform.c
@@ -679,8 +679,8 @@ static void vfio_platform_realize(DeviceState *dev, Error **errp)
 
     for (i = 0; i < vbasedev->num_regions; i++) {
         if (vfio_region_mmap(vdev->regions[i])) {
-            error_report("%s mmap unsupported. Performance may be slow",
-                         memory_region_name(vdev->regions[i]->mem));
+            warn_report("%s mmap unsupported, performance may be slow",
+                        memory_region_name(vdev->regions[i]->mem));
         }
         sysbus_init_mmio(sbdev, vdev->regions[i]->mem);
     }
@@ -690,7 +690,7 @@ out:
     }
 
     if (vdev->vbasedev.name) {
-        error_prepend(errp, ERR_PREFIX, vdev->vbasedev.name);
+        error_prepend(errp, VFIO_MSG_PREFIX, vdev->vbasedev.name);
     } else {
         error_prepend(errp, "vfio error: ");
     }
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 3a01fe90f0..a954799267 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1683,8 +1683,8 @@ static void virtio_pci_device_plugged(DeviceState *d, Error **errp)
         if (err) {
             /* Notice when a system that supports MSIx can't initialize it */
             if (err != -ENOTSUP) {
-                error_report("unable to init msix vectors to %" PRIu32,
-                             proxy->nvectors);
+                warn_report("unable to init msix vectors to %" PRIu32,
+                            proxy->nvectors);
             }
             proxy->nvectors = 0;
         }
diff --git a/hw/xen/xen_pt.c b/hw/xen/xen_pt.c
index e5a6eff44f..f1f3a3727c 100644
--- a/hw/xen/xen_pt.c
+++ b/hw/xen/xen_pt.c
@@ -830,7 +830,7 @@ static void xen_pt_realize(PCIDevice *d, Error **errp)
     xen_pt_config_init(s, &err);
     if (err) {
         error_append_hint(&err, "PCI Config space initialisation failed");
-        error_report_err(err);
+        error_propagate(errp, err);
         rc = -1;
         goto err_out;
     }