From patchwork Tue Oct 27 18:21:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paolo Bonzini X-Patchwork-Id: 301776 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=-9.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 EDDC0C4363A for ; Tue, 27 Oct 2020 18:43:24 +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 3D02920760 for ; Tue, 27 Oct 2020 18:43:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="BIDvoG7n" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3D02920760 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]:54814 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kXTwJ-0005BB-4R for qemu-devel@archiver.kernel.org; Tue, 27 Oct 2020 14:43:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58156) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kXTc2-0004Qe-Ni for qemu-devel@nongnu.org; Tue, 27 Oct 2020 14:22:26 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:43842) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kXTbr-00032p-CZ for qemu-devel@nongnu.org; Tue, 27 Oct 2020 14:22:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1603822928; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Qw1VERdZScWEw2GW3fkpxjBe9i8Cmxz9eFQMCTMwu6I=; b=BIDvoG7nDqa+oGNbIR113O93xzxwTqDNnceJKP0gfmDYA8+9y71KVWHuUa14IhLOaaJ+JF BZ/CE0Tyvju8DdnWCmJK+P5C1AOfPvCGQj955tCpo5m31wZzJuvmEIcIYFG3lM+v9DhrS4 fsbSUJxj1gHCGpVaEps2NYqVD6ZJnQY= 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-447-aYhNrEvOMYKoWI7TJml5AA-1; Tue, 27 Oct 2020 14:22:06 -0400 X-MC-Unique: aYhNrEvOMYKoWI7TJml5AA-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 782558A2A3D for ; Tue, 27 Oct 2020 18:21:54 +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 4434650B44 for ; Tue, 27 Oct 2020 18:21:54 +0000 (UTC) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PATCH 24/29] migration, vl: start migration via qmp_migrate_incoming Date: Tue, 27 Oct 2020 14:21:39 -0400 Message-Id: <20201027182144.3315885-25-pbonzini@redhat.com> In-Reply-To: <20201027182144.3315885-1-pbonzini@redhat.com> References: <20201027182144.3315885-1-pbonzini@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 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-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/27 01:06:06 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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_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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Make qemu_start_incoming_migration local to migration/migration.c. By using the runstate instead of a separate flag, vl need not do anything to setup deferred incoming migration. qmp_migrate_incoming also does not need the deferred_incoming flag anymore, because "-incoming PROTOCOL" will clear the "once" flag before the main loop starts. Therefore, later invocations of the migrate-incoming command will fail with the existing "The incoming migration has already been started" error message. Signed-off-by: Paolo Bonzini --- include/migration/misc.h | 1 - migration/migration.c | 33 ++++++++------------------------- softmmu/vl.c | 11 +++++++---- 3 files changed, 15 insertions(+), 30 deletions(-) diff --git a/include/migration/misc.h b/include/migration/misc.h index 34e7d75713..bccc1b6b44 100644 --- a/include/migration/misc.h +++ b/include/migration/misc.h @@ -58,7 +58,6 @@ void dump_vmstate_json_to_file(FILE *out_fp); /* migration/migration.c */ void migration_object_init(void); void migration_shutdown(void); -void qemu_start_incoming_migration(const char *uri, Error **errp); bool migration_is_idle(void); bool migration_is_active(MigrationState *); void add_migration_state_change_notifier(Notifier *notify); diff --git a/migration/migration.c b/migration/migration.c index f48b03cac2..d078094c56 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -114,8 +114,6 @@ static NotifierList migration_state_notifiers = NOTIFIER_LIST_INITIALIZER(migration_state_notifiers); -static bool deferred_incoming; - /* Messages sent on the return path from destination to source */ enum mig_rp_message_type { MIG_RP_MSG_INVALID = 0, /* Must be 0 */ @@ -257,19 +255,6 @@ static bool migrate_late_block_activate(void) MIGRATION_CAPABILITY_LATE_BLOCK_ACTIVATE]; } -/* - * Called on -incoming with a defer: uri. - * The migration can be started later after any parameters have been - * changed. - */ -static void deferred_incoming_migration(Error **errp) -{ - if (deferred_incoming) { - error_setg(errp, "Incoming migration already deferred"); - } - deferred_incoming = true; -} - /* * Send a message on the return channel back to the source * of the migration. @@ -380,16 +365,14 @@ void migrate_add_address(SocketAddress *address) addrs->value = QAPI_CLONE(SocketAddress, address); } -void qemu_start_incoming_migration(const char *uri, Error **errp) +static void qemu_start_incoming_migration(const char *uri, Error **errp) { const char *p = NULL; qapi_event_send_migration(MIGRATION_STATUS_SETUP); - if (!strcmp(uri, "defer")) { - deferred_incoming_migration(errp); - } else if (strstart(uri, "tcp:", &p) || - strstart(uri, "unix:", NULL) || - strstart(uri, "vsock:", NULL)) { + if (strstart(uri, "tcp:", &p) || + strstart(uri, "unix:", NULL) || + strstart(uri, "vsock:", NULL)) { socket_start_incoming_migration(p ? p : uri, errp); #ifdef CONFIG_RDMA } else if (strstart(uri, "rdma:", &p)) { @@ -1926,14 +1909,14 @@ void qmp_migrate_incoming(const char *uri, Error **errp) Error *local_err = NULL; static bool once = true; - if (!deferred_incoming) { - error_setg(errp, "For use with '-incoming defer'"); - return; - } if (!once) { error_setg(errp, "The incoming migration has already been started"); return; } + if (!runstate_check(RUN_STATE_INMIGRATE)) { + error_setg(errp, "'-incoming' was not specified on the command line"); + return; + } qemu_start_incoming_migration(uri, &local_err); diff --git a/softmmu/vl.c b/softmmu/vl.c index ae2854d8af..583366510b 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -109,6 +109,7 @@ #include "qapi/qapi-visit-block-core.h" #include "qapi/qapi-visit-ui.h" #include "qapi/qapi-commands-block-core.h" +#include "qapi/qapi-commands-migration.h" #include "qapi/qapi-commands-run-state.h" #include "qapi/qapi-commands-ui.h" #include "qapi/qmp/qerror.h" @@ -4557,10 +4558,12 @@ void qemu_init(int argc, char **argv, char **envp) } if (incoming) { Error *local_err = NULL; - qemu_start_incoming_migration(incoming, &local_err); - if (local_err) { - error_reportf_err(local_err, "-incoming %s: ", incoming); - exit(1); + if (strcmp(incoming, "defer") != 0) { + qmp_migrate_incoming(incoming, &local_err); + if (local_err) { + error_reportf_err(local_err, "-incoming %s: ", incoming); + exit(1); + } } } else if (autostart) { vm_start();