diff --git a/hw/core/machine.c b/hw/core/machine.c
index afd84ac..b0fd91f 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -364,6 +364,104 @@ static void machine_class_init(ObjectClass *oc, void *data)
     /* Default 128 MB as guest ram size */
     mc->default_ram_size = 128 * M_BYTE;
     mc->rom_file_has_mr = true;
+
+    object_class_property_add_str(oc, "accel",
+        machine_get_accel, machine_set_accel, &error_abort);
+    object_class_property_set_description(oc, "accel",
+        "Accelerator list", &error_abort);
+
+    object_class_property_add(oc, "kernel-irqchip", "OnOffSplit",
+        NULL, machine_set_kernel_irqchip,
+        NULL, NULL, &error_abort);
+    object_class_property_set_description(oc, "kernel-irqchip",
+        "Configure KVM in-kernel irqchip", &error_abort);
+
+    object_class_property_add(oc, "kvm-shadow-mem", "int",
+        machine_get_kvm_shadow_mem, machine_set_kvm_shadow_mem,
+        NULL, NULL, &error_abort);
+    object_class_property_set_description(oc, "kvm-shadow-mem",
+        "KVM shadow MMU size", &error_abort);
+
+    object_class_property_add_str(oc, "kernel",
+        machine_get_kernel, machine_set_kernel, &error_abort);
+    object_class_property_set_description(oc, "kernel",
+        "Linux kernel image file", &error_abort);
+
+    object_class_property_add_str(oc, "initrd",
+        machine_get_initrd, machine_set_initrd, &error_abort);
+    object_class_property_set_description(oc, "initrd",
+        "Linux initial ramdisk file", &error_abort);
+
+    object_class_property_add_str(oc, "append",
+        machine_get_append, machine_set_append, &error_abort);
+    object_class_property_set_description(oc, "append",
+        "Linux kernel command line", &error_abort);
+
+    object_class_property_add_str(oc, "dtb",
+        machine_get_dtb, machine_set_dtb, &error_abort);
+    object_class_property_set_description(oc, "dtb",
+        "Linux kernel device tree file", &error_abort);
+
+    object_class_property_add_str(oc, "dumpdtb",
+        machine_get_dumpdtb, machine_set_dumpdtb, &error_abort);
+    object_class_property_set_description(oc, "dumpdtb",
+        "Dump current dtb to a file and quit", &error_abort);
+
+    object_class_property_add(oc, "phandle-start", "int",
+        machine_get_phandle_start, machine_set_phandle_start,
+        NULL, NULL, &error_abort);
+    object_class_property_set_description(oc, "phandle-start",
+            "The first phandle ID we may generate dynamically", &error_abort);
+
+    object_class_property_add_str(oc, "dt-compatible",
+        machine_get_dt_compatible, machine_set_dt_compatible, &error_abort);
+    object_class_property_set_description(oc, "dt-compatible",
+        "Overrides the \"compatible\" property of the dt root node",
+        &error_abort);
+
+    object_class_property_add_bool(oc, "dump-guest-core",
+        machine_get_dump_guest_core, machine_set_dump_guest_core, &error_abort);
+    object_class_property_set_description(oc, "dump-guest-core",
+        "Include guest memory in  a core dump", &error_abort);
+
+    object_class_property_add_bool(oc, "mem-merge",
+        machine_get_mem_merge, machine_set_mem_merge, &error_abort);
+    object_class_property_set_description(oc, "mem-merge",
+        "Enable/disable memory merge support", &error_abort);
+
+    object_class_property_add_bool(oc, "usb",
+        machine_get_usb, machine_set_usb, &error_abort);
+    object_class_property_set_description(oc, "usb",
+        "Set on/off to enable/disable usb", &error_abort);
+
+    object_class_property_add_bool(oc, "graphics",
+        machine_get_graphics, machine_set_graphics, &error_abort);
+    object_class_property_set_description(oc, "graphics",
+        "Set on/off to enable/disable graphics emulation", &error_abort);
+
+    object_class_property_add_bool(oc, "igd-passthru",
+        machine_get_igd_gfx_passthru, machine_set_igd_gfx_passthru,
+        &error_abort);
+    object_class_property_set_description(oc, "igd-passthru",
+        "Set on/off to enable/disable igd passthrou", &error_abort);
+
+    object_class_property_add_str(oc, "firmware",
+        machine_get_firmware, machine_set_firmware,
+        &error_abort);
+    object_class_property_set_description(oc, "firmware",
+        "Firmware image", &error_abort);
+
+    object_class_property_add_bool(oc, "suppress-vmdesc",
+        machine_get_suppress_vmdesc, machine_set_suppress_vmdesc,
+        &error_abort);
+    object_class_property_set_description(oc, "suppress-vmdesc",
+        "Set on to disable self-describing migration", &error_abort);
+
+    object_class_property_add_bool(oc, "enforce-config-section",
+        machine_get_enforce_config_section, machine_set_enforce_config_section,
+        &error_abort);
+    object_class_property_set_description(oc, "enforce-config-section",
+        "Set on to enforce configuration section migration", &error_abort);
 }
 
 static void machine_class_base_init(ObjectClass *oc, void *data)
@@ -387,114 +485,6 @@ static void machine_initfn(Object *obj)
     ms->mem_merge = true;
     ms->enable_graphics = true;
 
-    object_property_add_str(obj, "accel",
-                            machine_get_accel, machine_set_accel, NULL);
-    object_property_set_description(obj, "accel",
-                                    "Accelerator list",
-                                    NULL);
-    object_property_add(obj, "kernel-irqchip", "OnOffSplit",
-                        NULL,
-                        machine_set_kernel_irqchip,
-                        NULL, NULL, NULL);
-    object_property_set_description(obj, "kernel-irqchip",
-                                    "Configure KVM in-kernel irqchip",
-                                    NULL);
-    object_property_add(obj, "kvm-shadow-mem", "int",
-                        machine_get_kvm_shadow_mem,
-                        machine_set_kvm_shadow_mem,
-                        NULL, NULL, NULL);
-    object_property_set_description(obj, "kvm-shadow-mem",
-                                    "KVM shadow MMU size",
-                                    NULL);
-    object_property_add_str(obj, "kernel",
-                            machine_get_kernel, machine_set_kernel, NULL);
-    object_property_set_description(obj, "kernel",
-                                    "Linux kernel image file",
-                                    NULL);
-    object_property_add_str(obj, "initrd",
-                            machine_get_initrd, machine_set_initrd, NULL);
-    object_property_set_description(obj, "initrd",
-                                    "Linux initial ramdisk file",
-                                    NULL);
-    object_property_add_str(obj, "append",
-                            machine_get_append, machine_set_append, NULL);
-    object_property_set_description(obj, "append",
-                                    "Linux kernel command line",
-                                    NULL);
-    object_property_add_str(obj, "dtb",
-                            machine_get_dtb, machine_set_dtb, NULL);
-    object_property_set_description(obj, "dtb",
-                                    "Linux kernel device tree file",
-                                    NULL);
-    object_property_add_str(obj, "dumpdtb",
-                            machine_get_dumpdtb, machine_set_dumpdtb, NULL);
-    object_property_set_description(obj, "dumpdtb",
-                                    "Dump current dtb to a file and quit",
-                                    NULL);
-    object_property_add(obj, "phandle-start", "int",
-                        machine_get_phandle_start,
-                        machine_set_phandle_start,
-                        NULL, NULL, NULL);
-    object_property_set_description(obj, "phandle-start",
-                                    "The first phandle ID we may generate dynamically",
-                                    NULL);
-    object_property_add_str(obj, "dt-compatible",
-                            machine_get_dt_compatible,
-                            machine_set_dt_compatible,
-                            NULL);
-    object_property_set_description(obj, "dt-compatible",
-                                    "Overrides the \"compatible\" property of the dt root node",
-                                    NULL);
-    object_property_add_bool(obj, "dump-guest-core",
-                             machine_get_dump_guest_core,
-                             machine_set_dump_guest_core,
-                             NULL);
-    object_property_set_description(obj, "dump-guest-core",
-                                    "Include guest memory in  a core dump",
-                                    NULL);
-    object_property_add_bool(obj, "mem-merge",
-                             machine_get_mem_merge,
-                             machine_set_mem_merge, NULL);
-    object_property_set_description(obj, "mem-merge",
-                                    "Enable/disable memory merge support",
-                                    NULL);
-    object_property_add_bool(obj, "usb",
-                             machine_get_usb,
-                             machine_set_usb, NULL);
-    object_property_set_description(obj, "usb",
-                                    "Set on/off to enable/disable usb",
-                                    NULL);
-    object_property_add_bool(obj, "graphics",
-                             machine_get_graphics,
-                             machine_set_graphics, NULL);
-    object_property_set_description(obj, "graphics",
-                                    "Set on/off to enable/disable graphics emulation",
-                                    NULL);
-    object_property_add_bool(obj, "igd-passthru",
-                             machine_get_igd_gfx_passthru,
-                             machine_set_igd_gfx_passthru, NULL);
-    object_property_set_description(obj, "igd-passthru",
-                                    "Set on/off to enable/disable igd passthrou",
-                                    NULL);
-    object_property_add_str(obj, "firmware",
-                            machine_get_firmware,
-                            machine_set_firmware, NULL);
-    object_property_set_description(obj, "firmware",
-                                    "Firmware image",
-                                    NULL);
-    object_property_add_bool(obj, "suppress-vmdesc",
-                             machine_get_suppress_vmdesc,
-                             machine_set_suppress_vmdesc, NULL);
-    object_property_set_description(obj, "suppress-vmdesc",
-                                    "Set on to disable self-describing migration",
-                                    NULL);
-    object_property_add_bool(obj, "enforce-config-section",
-                             machine_get_enforce_config_section,
-                             machine_set_enforce_config_section, NULL);
-    object_property_set_description(obj, "enforce-config-section",
-                                    "Set on to enforce configuration section migration",
-                                    NULL);
-
     /* Register notifier when init is done for sysbus sanity checks */
     ms->sysbus_notifier.notify = machine_init_notify;
     qemu_add_machine_init_done_notifier(&ms->sysbus_notifier);
