From nobody Tue Nov 4 23:31:01 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1531746172774660.445621470205; Mon, 16 Jul 2018 06:02:52 -0700 (PDT) Received: from localhost ([::1]:51261 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ff39P-0002vv-Ke for importer@patchew.org; Mon, 16 Jul 2018 09:02:51 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43311) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ff36P-00014l-7d for qemu-devel@nongnu.org; Mon, 16 Jul 2018 08:59:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ff36O-000222-8M for qemu-devel@nongnu.org; Mon, 16 Jul 2018 08:59:45 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:48740 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ff36L-0001yq-96; Mon, 16 Jul 2018 08:59:41 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id B4999401EF0B; Mon, 16 Jul 2018 12:59:40 +0000 (UTC) Received: from thh440s.str.redhat.com (dhcp-200-180.str.redhat.com [10.33.200.180]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1FA2D1C589; Mon, 16 Jul 2018 12:59:39 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org, Peter Maydell , Paolo Bonzini Date: Mon, 16 Jul 2018 14:59:19 +0200 Message-Id: <1531745974-17187-3-git-send-email-thuth@redhat.com> In-Reply-To: <1531745974-17187-1-git-send-email-thuth@redhat.com> References: <1531745974-17187-1-git-send-email-thuth@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Mon, 16 Jul 2018 12:59:40 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Mon, 16 Jul 2018 12:59:40 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'thuth@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH v3 02/17] hw/core/sysbus: Add a function for creating and attaching an object X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eduardo Habkost , Alistair Francis , Markus Armbruster , Subbaraya Sundeep , Beniamino Galvani , qemu-arm@nongnu.org, "Edgar E. Iglesias" , =?UTF-8?q?Andreas=20F=C3=A4rber?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" A lot of functions are initializing an object and attach it immediately afterwards to the system bus. Provide a common function for this, which also uses object_initialize_child() to make sure that the reference counter is correctly initialized to 1 afterwards. Reviewed-by: Richard Henderson Reviewed-by: Paolo Bonzini Reviewed-by: Eduardo Habkost Signed-off-by: Thomas Huth Reviewed-by: Alistair Francis --- hw/core/sysbus.c | 8 ++++++++ include/hw/sysbus.h | 17 +++++++++++++++++ 2 files changed, 25 insertions(+) diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c index ecfb0cf..3c8e53b 100644 --- a/hw/core/sysbus.c +++ b/hw/core/sysbus.c @@ -376,6 +376,14 @@ BusState *sysbus_get_default(void) return main_system_bus; } =20 +void sysbus_init_child_obj(Object *parent, const char *childname, void *ch= ild, + size_t childsize, const char *childtype) +{ + object_initialize_child(parent, childname, child, childsize, childtype, + &error_abort, NULL); + qdev_set_parent_bus(DEVICE(child), sysbus_get_default()); +} + static void sysbus_register_types(void) { type_register_static(&system_bus_info); diff --git a/include/hw/sysbus.h b/include/hw/sysbus.h index e88bb6d..0b59a3b 100644 --- a/include/hw/sysbus.h +++ b/include/hw/sysbus.h @@ -96,6 +96,23 @@ void sysbus_add_io(SysBusDevice *dev, hwaddr addr, MemoryRegion *mem); MemoryRegion *sysbus_address_space(SysBusDevice *dev); =20 +/** + * sysbus_init_child_obj: + * @parent: The parent object + * @childname: Used as name of the "child<>" property in the parent + * @child: A pointer to the memory to be used for the object. + * @childsize: The maximum size available at @child for the object. + * @childtype: The name of the type of the object to instantiate. + * + * This function will initialize an object and attach it to the main system + * bus. The memory for the object should have already been allocated. The + * object will then be added as child to the given parent. The returned ob= ject + * has a reference count of 1 (for the "child<...>" property from the pare= nt), + * so the object will be finalized automatically when the parent gets remo= ved. + */ +void sysbus_init_child_obj(Object *parent, const char *childname, void *ch= ild, + size_t childsize, const char *childtype); + /* Call func for every dynamically created sysbus device in the system */ void foreach_dynamic_sysbus_device(FindSysbusDeviceFunc *func, void *opaqu= e); =20 --=20 1.8.3.1