From patchwork Fri May 21 10:21:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paolo Bonzini X-Patchwork-Id: 12272795 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=-13.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 A2942C433ED for ; Fri, 21 May 2021 10:22:55 +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 0BDD7613CB for ; Fri, 21 May 2021 10:22:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0BDD7613CB 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]:38746 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lk2Iv-0005xx-Pf for qemu-devel@archiver.kernel.org; Fri, 21 May 2021 06:22:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49654) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lk2HQ-0003Xm-0P for qemu-devel@nongnu.org; Fri, 21 May 2021 06:21:20 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:38399) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lk2HI-0007oo-EJ for qemu-devel@nongnu.org; Fri, 21 May 2021 06:21:19 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1621592470; 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=PIrRF+BcVz53flEMCLyqe0dnwuEd36HQ4RVvDptDqA0=; b=Lx0bhtqDg8O9ECwsNkz2n8duwy22vuEssthfSHZcedKD+W2WZc6jB0azBBaVydM9B3zG2R H09JBwdO0TVg7yzyJD9QFN+AO3oke6DAsBF69ShP1dcWzKcJKzmQ56IM8ubPUeCy5HDFAm QldxY4wI9ry8EuZUqXRPviv4BxUEuhM= 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-595-aI58VvTFNDaD0myRfGSrUQ-1; Fri, 21 May 2021 06:21:07 -0400 X-MC-Unique: aI58VvTFNDaD0myRfGSrUQ-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 65EA2501E3; Fri, 21 May 2021 10:21:06 +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 E5E90610B0; Fri, 21 May 2021 10:21:05 +0000 (UTC) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PATCH v3 2/3] vl: plumb keyval-based options into -readconfig Date: Fri, 21 May 2021 06:21:03 -0400 Message-Id: <20210521102104.3271053-3-pbonzini@redhat.com> In-Reply-To: <20210521102104.3271053-1-pbonzini@redhat.com> References: <20210521102104.3271053-1-pbonzini@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 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 Received-SPF: pass client-ip=216.205.24.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.39, 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=ham 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, qemu-stable@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Let -readconfig support parsing command line options into QDict or QemuOpts. This will be used to add back support for objects in -readconfig. Cc: Markus Armbruster Cc: qemu-stable@nongnu.org Reviewed-by: Kevin Wolf Signed-off-by: Paolo Bonzini --- v1->v2: fix overlong line include/block/qdict.h | 2 - include/qapi/qmp/qdict.h | 3 ++ softmmu/vl.c | 83 ++++++++++++++++++++++++++++------------ 3 files changed, 62 insertions(+), 26 deletions(-) diff --git a/include/block/qdict.h b/include/block/qdict.h index d8cb502d7d..ced2acfb92 100644 --- a/include/block/qdict.h +++ b/include/block/qdict.h @@ -20,8 +20,6 @@ void qdict_join(QDict *dest, QDict *src, bool overwrite); void qdict_extract_subqdict(QDict *src, QDict **dst, const char *start); void qdict_array_split(QDict *src, QList **dst); int qdict_array_entries(QDict *src, const char *subqdict); -QObject *qdict_crumple(const QDict *src, Error **errp); -void qdict_flatten(QDict *qdict); typedef struct QDictRenames { const char *from; diff --git a/include/qapi/qmp/qdict.h b/include/qapi/qmp/qdict.h index 9934539c1b..d5b5430e21 100644 --- a/include/qapi/qmp/qdict.h +++ b/include/qapi/qmp/qdict.h @@ -64,4 +64,7 @@ const char *qdict_get_try_str(const QDict *qdict, const char *key); QDict *qdict_clone_shallow(const QDict *src); +QObject *qdict_crumple(const QDict *src, Error **errp); +void qdict_flatten(QDict *qdict); + #endif /* QDICT_H */ diff --git a/softmmu/vl.c b/softmmu/vl.c index 47dfdd704f..5e8240b9d8 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -121,6 +121,7 @@ #include "qapi/qapi-commands-misc.h" #include "qapi/qapi-visit-qom.h" #include "qapi/qapi-commands-ui.h" +#include "qapi/qmp/qdict.h" #include "qapi/qmp/qerror.h" #include "sysemu/iothread.h" #include "qemu/guest-random.h" @@ -2127,13 +2128,53 @@ static int global_init_func(void *opaque, QemuOpts *opts, Error **errp) return 0; } +/* + * Return whether configuration group @group is stored in QemuOpts, or + * recorded as one or more QDicts by qemu_record_config_group. + */ +static bool is_qemuopts_group(const char *group) +{ + return true; +} + +static void qemu_record_config_group(const char *group, QDict *dict, + bool from_json, Error **errp) +{ + abort(); +} + +/* + * Parse non-QemuOpts config file groups, pass the rest to + * qemu_config_do_parse. + */ +static void qemu_parse_config_group(const char *group, QDict *qdict, + void *opaque, Error **errp) +{ + QObject *crumpled; + if (is_qemuopts_group(group)) { + qemu_config_do_parse(group, qdict, opaque, errp); + return; + } + + crumpled = qdict_crumple(qdict, errp); + if (!crumpled) { + return; + } + if (qobject_type(crumpled) != QTYPE_QDICT) { + assert(qobject_type(crumpled) == QTYPE_QLIST); + error_setg(errp, "Lists cannot be at top level of a configuration section"); + return; + } + qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp); +} + static void qemu_read_default_config_file(Error **errp) { ERRP_GUARD(); int ret; g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf"); - ret = qemu_read_config_file(file, qemu_config_do_parse, errp); + ret = qemu_read_config_file(file, qemu_parse_config_group, errp); if (ret < 0) { if (ret == -ENOENT) { error_free(*errp); @@ -2142,9 +2183,8 @@ static void qemu_read_default_config_file(Error **errp) } } -static int qemu_set_option(const char *str) +static void qemu_set_option(const char *str, Error **errp) { - Error *local_err = NULL; char group[64], id[64], arg[64]; QemuOptsList *list; QemuOpts *opts; @@ -2152,27 +2192,23 @@ static int qemu_set_option(const char *str) rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset); if (rc < 3 || str[offset] != '=') { - error_report("can't parse: \"%s\"", str); - return -1; - } - - list = qemu_find_opts(group); - if (list == NULL) { - return -1; - } - - opts = qemu_opts_find(list, id); - if (!opts) { - error_report("there is no %s \"%s\" defined", - list->name, id); - return -1; + error_setg(errp, "can't parse: \"%s\"", str); + return; } - if (!qemu_opt_set(opts, arg, str + offset + 1, &local_err)) { - error_report_err(local_err); - return -1; + if (!is_qemuopts_group(group)) { + error_setg(errp, "-set is not supported with %s", group); + } else { + list = qemu_find_opts_err(group, errp); + if (list) { + opts = qemu_opts_find(list, id); + if (!opts) { + error_setg(errp, "there is no %s \"%s\" defined", group, id); + return; + } + qemu_opt_set(opts, arg, str + offset + 1, errp); + } } - return 0; } static void user_register_global_props(void) @@ -2766,8 +2802,7 @@ void qemu_init(int argc, char **argv, char **envp) } break; case QEMU_OPTION_set: - if (qemu_set_option(optarg) != 0) - exit(1); + qemu_set_option(optarg, &error_fatal); break; case QEMU_OPTION_global: if (qemu_global_option(optarg) != 0) @@ -3399,7 +3434,7 @@ void qemu_init(int argc, char **argv, char **envp) qemu_plugin_opt_parse(optarg, &plugin_list); break; case QEMU_OPTION_readconfig: - qemu_read_config_file(optarg, qemu_config_do_parse, &error_fatal); + qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal); break; case QEMU_OPTION_spice: olist = qemu_find_opts_err("spice", NULL);