From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1003AC433DB for ; Thu, 11 Mar 2021 17:29:24 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 43DD464F3B for ; Thu, 11 Mar 2021 17:29:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 43DD464F3B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:55722 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lKP7i-0006xM-1i for qemu-devel@archiver.kernel.org; Thu, 11 Mar 2021 12:29:22 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:36184) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lKP3s-0003eC-E2 for qemu-devel@nongnu.org; Thu, 11 Mar 2021 12:25:26 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:21492) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lKP3g-0002EL-Sv for qemu-devel@nongnu.org; Thu, 11 Mar 2021 12:25:23 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1615483508; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=wIwhESrCSbQC4TvcckLi2awNeh+BvzbxizMZr1FuE9E=; b=XtCZl0cI5HUM9Hd2gBUjuSaxxmSPOX7uPeyroBAkxeK75rajyzBnybCm36yWHqQHwttrSO YoW4zUROnCKPsx2dsVhxKUUp7AW1yqwLwAm8+DDaQqAqUiftP7HOsALwUQ/3huhz0CD46U qiQRtk50swnQfxG9YZ4906k2dpHzP3g= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-164-PMOJ7_6eNbCl1jJjWmKe_g-1; Thu, 11 Mar 2021 12:25:02 -0500 X-MC-Unique: PMOJ7_6eNbCl1jJjWmKe_g-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 77C2A81744F for ; Thu, 11 Mar 2021 17:25:01 +0000 (UTC) Received: from virtlab701.virt.lab.eng.bos.redhat.com (virtlab701.virt.lab.eng.bos.redhat.com [10.19.152.228]) by smtp.corp.redhat.com (Postfix) with ESMTP id 06FC160C5D; Thu, 11 Mar 2021 17:25:00 +0000 (UTC) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PATCH 2/3] qom: move user_creatable_add_opts logic to vl.c and QAPIfy it Date: Thu, 11 Mar 2021 12:24:58 -0500 Message-Id: <20210311172459.990281-3-pbonzini@redhat.com> In-Reply-To: <20210311172459.990281-1-pbonzini@redhat.com> References: <20210311172459.990281-1-pbonzini@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=pbonzini@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" Received-SPF: pass client-ip=170.10.133.124; envelope-from=pbonzini@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, armbru@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Emulators are currently using OptsVisitor (via user_creatable_add_opts) to parse the -object command line option. This has one extra feature, compared to keyval, which is automatic conversion of integers to lists as well as support for lists as repeated options: -object memory-backend-ram,id=pc.ram,size=1048576000,host-nodes=0,policy=bind So we cannot replace OptsVisitor with keyval right now. Still, this patch moves the user_creatable_add_opts logic to vl.c since it is not needed anywhere else, and makes it go through user_creatable_add_qapi. In order to minimize code changes, the predicate still takes a string. This can be changed later to use the ObjectType QAPI enum directly. Signed-off-by: Paolo Bonzini --- include/qom/object_interfaces.h | 50 ++-------------------- qom/object_interfaces.c | 57 +------------------------ softmmu/vl.c | 73 +++++++++++++++++++++++++-------- 3 files changed, 60 insertions(+), 120 deletions(-) diff --git a/include/qom/object_interfaces.h b/include/qom/object_interfaces.h index fb32330901..454fe4435b 100644 --- a/include/qom/object_interfaces.h +++ b/include/qom/object_interfaces.h @@ -95,54 +95,10 @@ Object *user_creatable_add_type(const char *type, const char *id, * Create an instance of the user creatable object according to the * options passed in @opts as described in the QAPI schema documentation. * - * Returns: the newly created object or NULL on error - */ -void user_creatable_add_qapi(ObjectOptions *options, Error **errp); - -/** - * user_creatable_add_opts: - * @opts: the object definition - * @errp: if an error occurs, a pointer to an area to store the error - * - * Create an instance of the user creatable object whose type - * is defined in @opts by the 'qom-type' option, placing it - * in the object composition tree with name provided by the - * 'id' field. The remaining options in @opts are used to - * initialize the object properties. - * - * Returns: the newly created object or NULL on error - */ -Object *user_creatable_add_opts(QemuOpts *opts, Error **errp); - - -/** - * user_creatable_add_opts_predicate: - * @type: the QOM type to be added - * - * A callback function to determine whether an object - * of type @type should be created. Instances of this - * callback should be passed to user_creatable_add_opts_foreach - */ -typedef bool (*user_creatable_add_opts_predicate)(const char *type); - -/** - * user_creatable_add_opts_foreach: - * @opaque: a user_creatable_add_opts_predicate callback or NULL - * @opts: options to create - * @errp: unused - * - * An iterator callback to be used in conjunction with - * the qemu_opts_foreach() method for creating a list of - * objects from a set of QemuOpts - * - * The @opaque parameter can be passed a user_creatable_add_opts_predicate - * callback to filter which types of object are created during iteration. - * When it fails, report the error. - * - * Returns: 0 on success, -1 when an error was reported. + * Returns: true when an object was successfully created, false when an error + * occurred */ -int user_creatable_add_opts_foreach(void *opaque, - QemuOpts *opts, Error **errp); +bool user_creatable_add_qapi(ObjectOptions *options, Error **errp); /** * user_creatable_parse_str: diff --git a/qom/object_interfaces.c b/qom/object_interfaces.c index 62d7db7629..2e50698075 100644 --- a/qom/object_interfaces.c +++ b/qom/object_interfaces.c @@ -117,7 +117,7 @@ out: return obj; } -void user_creatable_add_qapi(ObjectOptions *options, Error **errp) +bool user_creatable_add_qapi(ObjectOptions *options, Error **errp) { Visitor *v; QObject *qobj; @@ -138,60 +138,7 @@ void user_creatable_add_qapi(ObjectOptions *options, Error **errp) options->id, props, v, errp); object_unref(obj); visit_free(v); -} - -Object *user_creatable_add_opts(QemuOpts *opts, Error **errp) -{ - Visitor *v; - QDict *pdict; - Object *obj; - const char *id = qemu_opts_id(opts); - char *type = qemu_opt_get_del(opts, "qom-type"); - - if (!type) { - error_setg(errp, QERR_MISSING_PARAMETER, "qom-type"); - return NULL; - } - if (!id) { - error_setg(errp, QERR_MISSING_PARAMETER, "id"); - qemu_opt_set(opts, "qom-type", type, &error_abort); - g_free(type); - return NULL; - } - - qemu_opts_set_id(opts, NULL); - pdict = qemu_opts_to_qdict(opts, NULL); - - v = opts_visitor_new(opts); - obj = user_creatable_add_type(type, id, pdict, v, errp); - visit_free(v); - - qemu_opts_set_id(opts, (char *) id); - qemu_opt_set(opts, "qom-type", type, &error_abort); - g_free(type); - qobject_unref(pdict); - return obj; -} - - -int user_creatable_add_opts_foreach(void *opaque, QemuOpts *opts, Error **errp) -{ - bool (*type_opt_predicate)(const char *, QemuOpts *) = opaque; - Object *obj = NULL; - const char *type; - - type = qemu_opt_get(opts, "qom-type"); - if (type && type_opt_predicate && - !type_opt_predicate(type, opts)) { - return 0; - } - - obj = user_creatable_add_opts(opts, errp); - if (!obj) { - return -1; - } - object_unref(obj); - return 0; + return obj != NULL; } char *object_property_help(const char *name, const char *type, diff --git a/softmmu/vl.c b/softmmu/vl.c index ff488ea3e7..b245e912e5 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -117,6 +117,7 @@ #include "qapi/qapi-commands-block-core.h" #include "qapi/qapi-commands-migration.h" #include "qapi/qapi-commands-misc.h" +#include "qapi/qapi-visit-qom.h" #include "qapi/qapi-commands-ui.h" #include "qapi/qmp/qerror.h" #include "sysemu/iothread.h" @@ -132,10 +133,16 @@ typedef struct BlockdevOptionsQueueEntry { typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue; +typedef struct ObjectOption { + ObjectOptions *opts; + QTAILQ_ENTRY(ObjectOption) next; +} ObjectOption; + static const char *cpu_option; static const char *mem_path; static const char *incoming; static const char *loadvm; +static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts); static ram_addr_t maxram_size; static uint64_t ram_slots; static int display_remote; @@ -1684,6 +1691,48 @@ static int machine_set_property(void *opaque, return object_parse_property_opt(opaque, name, value, "type", errp); } +static void object_option_foreach_add(bool (*type_opt_predicate)(const char *), Error **errp) +{ + ObjectOption *opt, *next; + + QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) { + const char *type = ObjectType_str(opt->opts->qom_type); + if (type_opt_predicate(type)) { + if (!user_creatable_add_qapi(opt->opts, errp)) { + return; + } + qapi_free_ObjectOptions(opt->opts); + QTAILQ_REMOVE(&object_opts, opt, next); + } + } +} + +static void object_option_parse(const char *optarg) +{ + ObjectOption *opt; + QemuOpts *opts; + const char *type; + Visitor *v; + + opts = qemu_opts_parse_noisily(qemu_find_opts("object"), + optarg, true); + if (!opts) { + exit(1); + } + + type = qemu_opt_get(opts, "qom-type"); + if (user_creatable_print_help(type, opts)) { + exit(0); + } + + opt = g_new0(ObjectOption, 1); + v = opts_visitor_new(opts); + visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal); + visit_free(v); + + QTAILQ_INSERT_TAIL(&object_opts, opt, next); +} + /* * Initial object creation happens before all other * QEMU data types are created. The majority of objects @@ -1691,12 +1740,8 @@ static int machine_set_property(void *opaque, * cannot be created here, as it depends on the chardev * already existing. */ -static bool object_create_early(const char *type, QemuOpts *opts) +static bool object_create_early(const char *type) { - if (user_creatable_print_help(type, opts)) { - exit(0); - } - /* * Objects should not be made "delayed" without a reason. If you * add one, state the reason in a comment! @@ -1815,9 +1860,7 @@ static void qemu_create_early_backends(void) exit(1); } - qemu_opts_foreach(qemu_find_opts("object"), - user_creatable_add_opts_foreach, - object_create_early, &error_fatal); + object_option_foreach_add(object_create_early, &error_fatal); /* spice needs the timers to be initialized by this point */ /* spice must initialize before audio as it changes the default auiodev */ @@ -1846,9 +1889,9 @@ static void qemu_create_early_backends(void) * The remainder of object creation happens after the * creation of chardev, fsdev, net clients and device data types. */ -static bool object_create_late(const char *type, QemuOpts *opts) +static bool object_create_late(const char *type) { - return !object_create_early(type, opts); + return !object_create_early(type); } static void qemu_create_late_backends(void) @@ -1859,9 +1902,7 @@ static void qemu_create_late_backends(void) net_init_clients(&error_fatal); - qemu_opts_foreach(qemu_find_opts("object"), - user_creatable_add_opts_foreach, - object_create_late, &error_fatal); + object_option_foreach_add(object_create_late, &error_fatal); if (tpm_init() < 0) { exit(1); @@ -3398,11 +3439,7 @@ void qemu_init(int argc, char **argv, char **envp) #endif break; case QEMU_OPTION_object: - opts = qemu_opts_parse_noisily(qemu_find_opts("object"), - optarg, true); - if (!opts) { - exit(1); - } + object_option_parse(optarg); break; case QEMU_OPTION_overcommit: opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"), -- 2.26.2