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bh=o5ykgVmEnGS76V9KuqYxyHdTB13qldf5nvtaM21vn3A=; b=Fryu4yIjx9LCop70czwpPe17yp1U5pRzjC22wCEeAbfD2wjXLfE8XjGQAW9T3ZyM/p0jnG vtZnEIlmqPBq1lJeGMc2jXU1POKNP9w3pQMxLrTrRnv6gsDM47ITZjLRJb6ZIT3W19HwRy bw2qWJsrN0ejsDjogQrQaBYejk84jeM= X-MC-Unique: 13queT1CMUu69NYv7qSE-Q-1 From: Kevin Wolf To: qemu-block@nongnu.org Subject: [PULL 28/38] qapi/qom: QAPIfy object-add Date: Thu, 11 Mar 2021 15:48:01 +0100 Message-Id: <20210311144811.313451-29-kwolf@redhat.com> In-Reply-To: <20210311144811.313451-1-kwolf@redhat.com> References: <20210311144811.313451-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kwolf@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.25, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, peter.maydell@linaro.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) Content-Type: text/plain; charset="utf-8" This converts object-add from 'gen': false to the ObjectOptions QAPI type. As an immediate benefit, clients can now use QAPI schema introspection for user creatable QOM objects. It is also the first step towards making the QAPI schema the only external interface for the creation of user creatable objects. Once all other places (HMP and command lines of the system emulator and all tools) go through QAPI, too, some object implementations can be simplified because some checks (e.g. that mandatory options are set) are already performed by QAPI, and in another step, QOM boilerplate code could be generated from the schema. Signed-off-by: Kevin Wolf Acked-by: Paolo Bonzini Acked-by: Peter Krempa Reviewed-by: Eric Blake --- qapi/qom.json | 11 +---------- include/qom/object_interfaces.h | 7 ------- hw/block/xen-block.c | 16 ++++++++-------- monitor/misc.c | 2 -- qom/qom-qmp-cmds.c | 25 +++++++++++++++++++++++-- storage-daemon/qemu-storage-daemon.c | 2 -- 6 files changed, 32 insertions(+), 31 deletions(-) diff --git a/qapi/qom.json b/qapi/qom.json index 192a582b07..2056edc072 100644 --- a/qapi/qom.json +++ b/qapi/qom.json @@ -846,13 +846,6 @@ # # Create a QOM object. # -# @qom-type: the class name for the object to be created -# -# @id: the name of the new object -# -# Additional arguments depend on qom-type and are passed to the backend -# unchanged. -# # Returns: Nothing on success # Error if @qom-type is not a valid class name # @@ -866,9 +859,7 @@ # <- { "return": {} } # ## -{ 'command': 'object-add', - 'data': {'qom-type': 'str', 'id': 'str'}, - 'gen': false } # so we can get the additional arguments +{ 'command': 'object-add', 'data': 'ObjectOptions', 'boxed': true } =20 ## # @object-del: diff --git a/include/qom/object_interfaces.h b/include/qom/object_interface= s.h index 07d5cc8832..9b9938b8c0 100644 --- a/include/qom/object_interfaces.h +++ b/include/qom/object_interfaces.h @@ -196,11 +196,4 @@ bool user_creatable_del(const char *id, Error **errp); */ void user_creatable_cleanup(void); =20 -/** - * qmp_object_add: - * - * QMP command handler for object-add. See the QAPI schema for documentati= on. - */ -void qmp_object_add(QDict *qdict, QObject **ret_data, Error **errp); - #endif diff --git a/hw/block/xen-block.c b/hw/block/xen-block.c index a3b69e2709..ac82d54063 100644 --- a/hw/block/xen-block.c +++ b/hw/block/xen-block.c @@ -836,17 +836,17 @@ static XenBlockIOThread *xen_block_iothread_create(co= nst char *id, { ERRP_GUARD(); XenBlockIOThread *iothread =3D g_new(XenBlockIOThread, 1); - QDict *opts; - QObject *ret_data =3D NULL; + ObjectOptions *opts; =20 iothread->id =3D g_strdup(id); =20 - opts =3D qdict_new(); - qdict_put_str(opts, "qom-type", TYPE_IOTHREAD); - qdict_put_str(opts, "id", id); - qmp_object_add(opts, &ret_data, errp); - qobject_unref(opts); - qobject_unref(ret_data); + opts =3D g_new(ObjectOptions, 1); + *opts =3D (ObjectOptions) { + .qom_type =3D OBJECT_TYPE_IOTHREAD, + .id =3D g_strdup(id), + }; + qmp_object_add(opts, errp); + qapi_free_ObjectOptions(opts); =20 if (*errp) { g_free(iothread->id); diff --git a/monitor/misc.c b/monitor/misc.c index a7650ed747..42efd9e2ab 100644 --- a/monitor/misc.c +++ b/monitor/misc.c @@ -235,8 +235,6 @@ static void monitor_init_qmp_commands(void) qmp_query_qmp_schema, QCO_ALLOW_PRECONFIG); qmp_register_command(&qmp_commands, "device_add", qmp_device_add, QCO_NO_OPTIONS); - qmp_register_command(&qmp_commands, "object-add", qmp_object_add, - QCO_NO_OPTIONS); =20 QTAILQ_INIT(&qmp_cap_negotiation_commands); qmp_register_command(&qmp_cap_negotiation_commands, "qmp_capabilities", diff --git a/qom/qom-qmp-cmds.c b/qom/qom-qmp-cmds.c index 19fd5e117f..e577a96adf 100644 --- a/qom/qom-qmp-cmds.c +++ b/qom/qom-qmp-cmds.c @@ -19,8 +19,11 @@ #include "qapi/error.h" #include "qapi/qapi-commands-qdev.h" #include "qapi/qapi-commands-qom.h" +#include "qapi/qapi-visit-qom.h" #include "qapi/qmp/qdict.h" #include "qapi/qmp/qerror.h" +#include "qapi/qobject-input-visitor.h" +#include "qapi/qobject-output-visitor.h" #include "qemu/cutils.h" #include "qom/object_interfaces.h" #include "qom/qom-qobject.h" @@ -223,9 +226,27 @@ ObjectPropertyInfoList *qmp_qom_list_properties(const = char *typename, return prop_list; } =20 -void qmp_object_add(QDict *qdict, QObject **ret_data, Error **errp) +void qmp_object_add(ObjectOptions *options, Error **errp) { - user_creatable_add_dict(qdict, false, errp); + Visitor *v; + QObject *qobj; + QDict *props; + Object *obj; + + v =3D qobject_output_visitor_new(&qobj); + visit_type_ObjectOptions(v, NULL, &options, &error_abort); + visit_complete(v, &qobj); + visit_free(v); + + props =3D qobject_to(QDict, qobj); + qdict_del(props, "qom-type"); + qdict_del(props, "id"); + + v =3D qobject_input_visitor_new(QOBJECT(props)); + obj =3D user_creatable_add_type(ObjectType_str(options->qom_type), + options->id, props, v, errp); + object_unref(obj); + visit_free(v); } =20 void qmp_object_del(const char *id, Error **errp) diff --git a/storage-daemon/qemu-storage-daemon.c b/storage-daemon/qemu-sto= rage-daemon.c index a39a22386a..a118f3abfb 100644 --- a/storage-daemon/qemu-storage-daemon.c +++ b/storage-daemon/qemu-storage-daemon.c @@ -148,8 +148,6 @@ static void init_qmp_commands(void) qmp_init_marshal(&qmp_commands); qmp_register_command(&qmp_commands, "query-qmp-schema", qmp_query_qmp_schema, QCO_ALLOW_PRECONFIG); - qmp_register_command(&qmp_commands, "object-add", qmp_object_add, - QCO_NO_OPTIONS); =20 QTAILQ_INIT(&qmp_cap_negotiation_commands); qmp_register_command(&qmp_cap_negotiation_commands, "qmp_capabilities", --=20 2.29.2