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David Alan Gilbert" Subject: [PATCH 4/4] migration: Remove dependency to TYPE_DEVICE Date: Thu, 4 Jun 2026 19:11:18 -0400 Message-ID: <20260604231118.1584889-5-peterx@redhat.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260604231118.1584889-1-peterx@redhat.com> References: <20260604231118.1584889-1-peterx@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists1p.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=peterx@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -24 X-Spam_score: -2.5 X-Spam_bar: -- X-Spam_report: (-2.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.445, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1780614771766158500 Content-Type: text/plain; charset="utf-8" While doing that, we still want to keep the Property list that migration object used to use. Apply them directly to ObjectClass instead of setting them with a DeviceClass. Manually apply the two extra properties (compat properties, global settings) in an instance_post_init() hook, just like most of the rest users, see callers of object_apply_compat_props(). Signed-off-by: Peter Xu --- migration/migration.h | 2 +- migration/migration.c | 33 +++++++++++++++++++-------------- 2 files changed, 20 insertions(+), 15 deletions(-) diff --git a/migration/migration.h b/migration/migration.h index 841f49b215..8bdb8e8e6b 100644 --- a/migration/migration.h +++ b/migration/migration.h @@ -274,7 +274,7 @@ struct MigrationClass { =20 struct MigrationState { /*< private >*/ - DeviceState parent_obj; + Object parent_obj; =20 /*< public >*/ QemuThread thread; diff --git a/migration/migration.c b/migration/migration.c index 074d3f2c69..f9f102e78a 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -3966,11 +3966,9 @@ fail: =20 static void migration_class_init(ObjectClass *klass, const void *data) { - DeviceClass *dc =3D DEVICE_CLASS(klass); - - dc->user_creatable =3D false; - device_class_set_props_n(dc, migration_properties, - migration_properties_count); + for (int i =3D 0; i < migration_properties_count; i++) { + object_class_add_property(klass, &migration_properties[i]); + } } =20 static void migration_instance_finalize(Object *obj) @@ -4028,21 +4026,28 @@ static bool migration_object_check(MigrationState *= ms, Error **errp) return migrate_caps_check(old_caps, ms->capabilities, errp); } =20 -static const TypeInfo migration_type =3D { - .name =3D TYPE_MIGRATION, +static void migration_instance_post_init(Object *obj) +{ /* - * NOTE: TYPE_MIGRATION is not really a device, as the object is - * not created using qdev_new(), it is not attached to the qdev - * device tree, and it is never realized. + * Apply these properties on top of default values: * - * TODO: Make this TYPE_OBJECT once QOM provides something like - * TYPE_DEVICE's "-global" properties. + * (1) machine compat properties + * (2) -global settings in cmdlines + * + * Need to be applied in order so (2) takes precedence over (1). */ - .parent =3D TYPE_DEVICE, + object_apply_compat_props(obj); + object_apply_globals(obj); +} + +static const TypeInfo migration_type =3D { + .name =3D TYPE_MIGRATION, + .parent =3D TYPE_OBJECT, .class_init =3D migration_class_init, - .class_size =3D sizeof(MigrationClass), + .class_size =3D sizeof(ObjectClass), .instance_size =3D sizeof(MigrationState), .instance_init =3D migration_instance_init, + .instance_post_init =3D migration_instance_post_init, .instance_finalize =3D migration_instance_finalize, }; =20 --=20 2.53.0