From patchwork Fri Oct 20 09:07:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Juan Quintela X-Patchwork-Id: 1852381 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=JR1XCSih; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SBf1G57Syz23kP for ; Fri, 20 Oct 2023 20:09:54 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qtlUT-0003NQ-Gp; Fri, 20 Oct 2023 05:08:21 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qtlU4-0003AZ-4y for qemu-devel@nongnu.org; Fri, 20 Oct 2023 05:08:01 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qtlU1-0005D9-Jh for qemu-devel@nongnu.org; Fri, 20 Oct 2023 05:07:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1697792872; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hNFk4YkCAqeJIsXVRuOEkZafNahxDTxT32DWNknVNck=; b=JR1XCSihaZei9cL3nql1wc/Q5Y4LEq6WjM63e89GtziAzV6gLUMdoeExbIa+1oOJjB06Sp 7GT14MS3VSeqH0Uu8G7Dbqgm1+Lkwvo08EwO0MpVEqm5wVG8WXQqqIeGqL4ZgLOZN32ERn vSyE76od7GkrM2IBYYHOp83Zdu2vByQ= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-172-7-RHZQqDMhCaaY-T5CnLUQ-1; Fri, 20 Oct 2023 05:07:44 -0400 X-MC-Unique: 7-RHZQqDMhCaaY-T5CnLUQ-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 1D1D487A9F3; Fri, 20 Oct 2023 09:07:43 +0000 (UTC) Received: from secure.mitica (unknown [10.39.194.127]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0C5E92166B28; Fri, 20 Oct 2023 09:07:37 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Cc: Peter Maydell , Harsh Prateek Bora , David Hildenbrand , Samuel Thibault , Eric Farman , qemu-arm@nongnu.org, qemu-ppc@nongnu.org, Thomas Huth , Gerd Hoffmann , Fabiano Rosas , David Gibson , Corey Minyard , "Michael S. Tsirkin" , Peter Xu , Corey Minyard , Stefan Berger , Juan Quintela , Marcel Apfelbaum , =?utf-8?q?Marc-Andr=C3=A9_Lu?= =?utf-8?q?reau?= , Richard Henderson , Halil Pasic , Leonardo Bras , John Snow , Nicholas Piggin , Mark Cave-Ayland , Christian Borntraeger , Ilya Leoshkevich , Jason Wang , qemu-block@nongnu.org, qemu-s390x@nongnu.org, =?utf-8?q?C=C3=A9dric_Le_Goat?= =?utf-8?q?er?= , Daniel Henrique Barboza , Stefan Weil , Stefan Berger Subject: [PATCH v2 01/13] migration: Create vmstate_register_any() Date: Fri, 20 Oct 2023 11:07:19 +0200 Message-ID: <20231020090731.28701-2-quintela@redhat.com> In-Reply-To: <20231020090731.28701-1-quintela@redhat.com> References: <20231020090731.28701-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 Received-SPF: pass client-ip=170.10.133.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com 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_H3=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org We have lots of cases where we are using an instance_id==0 when we should be using VMSTATE_INSTANCE_ID_ANY (-1). Basically everything that can have more than one needs to have a proper instance_id or -1 and the system will take one for it. vmstate_register_any(): We register with -1. Reviewed-by: Stefan Berger Signed-off-by: Juan Quintela --- include/migration/vmstate.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h index 1a31fb7293..9ca7e9cc48 100644 --- a/include/migration/vmstate.h +++ b/include/migration/vmstate.h @@ -1230,6 +1230,23 @@ static inline int vmstate_register(VMStateIf *obj, int instance_id, opaque, -1, 0, NULL); } +/** + * vmstate_register_any() - legacy function to register state + * serialisation description and let the function choose the id + * + * New code shouldn't be using this function as QOM-ified devices have + * dc->vmsd to store the serialisation description. + * + * Returns: 0 on success, -1 on failure + */ +static inline int vmstate_register_any(VMStateIf *obj, + const VMStateDescription *vmsd, + void *opaque) +{ + return vmstate_register_with_alias_id(obj, VMSTATE_INSTANCE_ID_ANY, vmsd, + opaque, -1, 0, NULL); +} + void vmstate_unregister(VMStateIf *obj, const VMStateDescription *vmsd, void *opaque);