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 Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3B660C43458 for ; Sat, 11 Jul 2026 22:40:07 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wigMY-0002vF-OT; Sat, 11 Jul 2026 18:39:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wigMV-0002q4-P0; Sat, 11 Jul 2026 18:39:55 -0400 Received: from pdx-out-010.esa.us-west-2.outbound.mail-perimeter.amazon.com ([52.12.53.23]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wigMT-0005PG-Ps; Sat, 11 Jul 2026 18:39:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazoncorp2; t=1783809593; x=1815345593; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=MEhdqOfPkkhqCMQm9ucJ2rRitXNb0sc0jREmbOfT4hA=; b=Ia+/epJTaCpegrLY100cB09P2JxrQwu74JF5Jbh2b9h0JmpNQ3jaAPrV k3SdV6FfedvmR6Y87L22ud15zyAL0YGfLlpHWi4808Oe0KMt+LZGqVpVx BgAvSdRqJxdmBF9B4jiYUcdF2BXhRIbQyBlYm55ZNjunQwm3dyPFiNTSf 7bLjWFJXh7QRaF9mjd0mixqxVQGy0qq5fD1fUhRPnz0ayRw9lJTJQ+1E+ PJQoOH1B4BOo/h4osJnTPZIrE2bEiD5PrTOvayWDklcH5jca/2toZIZpW +6DmKyA7ZQXVKn07jol4QJe1EAknIX4CylC6HvRq1xQjlHXDPsTfERzEK A==; X-CSE-ConnectionGUID: deYkzdk0Qj6o3oXBvmMsYg== X-CSE-MsgGUID: 7wc9fV8YQquLtQE2jbrTzg== X-IronPort-AV: E=Sophos;i="6.25,154,1779148800"; d="scan'208";a="23369659" Received: from ip-10-5-0-115.us-west-2.compute.internal (HELO smtpout.naws.us-west-2.prod.farcaster.email.amazon.dev) ([10.5.0.115]) by internal-pdx-out-010.esa.us-west-2.outbound.mail-perimeter.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jul 2026 22:39:50 +0000 Received: from EX19MTAUWB002.ant.amazon.com [205.251.233.111:6067] by smtpin.naws.us-west-2.prod.farcaster.email.amazon.dev [10.0.11.115:2525] with esmtp (Farcaster) id 11688c6e-7d1d-4082-8f33-6052c953fb94; Sat, 11 Jul 2026 22:39:49 +0000 (UTC) X-Farcaster-Flow-ID: 11688c6e-7d1d-4082-8f33-6052c953fb94 Received: from EX19D001UWA001.ant.amazon.com (10.13.138.214) by EX19MTAUWB002.ant.amazon.com (10.250.64.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.43; Sat, 11 Jul 2026 22:39:49 +0000 Received: from ip-10-253-83-51.amazon.com (172.19.99.218) by EX19D001UWA001.ant.amazon.com (10.13.138.214) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.43; Sat, 11 Jul 2026 22:39:41 +0000 From: Alexander Graf To: CC: , , , , Song Gao <17746591750@163.com>, Aditya Gupta , Alexey Kardashevskiy , Farhan Ali , Alistair Francis , "Alistair Francis" , Antony Pavlov , Markus Armbruster , Artyom Tarasenko , BALATON Zoltan , Felipe Balbi , Christian Borntraeger , "Brian Cain" , Hendrik Brueckner , Chao Liu , "Huacai Chen" , =?UTF-8?q?Cl=C3=A9ment=20Chigot?= , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Helge Deller , Dorjoy Chowdhury , "Edgar E . Iglesias" , Alexandre Iooss , Eric Farman , Francisco Iglesias , Gaurav Sharma , "Gautam Gala" , Harsh Prateek Bora , =?UTF-8?q?Herv=C3=A9=20Poussineau?= , Jan Kiszka , Max Filippov , Joel Stanley , Jared Rossi , Tyrone Ting , Frederic Konrad , "Laurent Vivier" , Manos Pitsidianakis , Bibo Mao , "Mark Cave-Ayland" , Glenn Miles , Matthew Rosato , "Michael Rolnik" , "Michael S . Tsirkin" , "Niek Linnenbank" , Nicholas Piggin , Palmer Dabbelt , Halil Pasic , "Paolo Bonzini" , Peter Maydell , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , "Pierrick Bouvier" , Richard Henderson , Sai Pavan Boddu , Samuel Tardieu , Bernhard Beschow , Stafford Horne , Sergio Lopez , "Subbaraya Sundeep" , Thomas Huth , "Ran Wang" , Hao Wu , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= Subject: [RFC PATCH 010/134] hw/avr: Give onboard devices a QOM parent Date: Sat, 11 Jul 2026 22:35:03 +0000 Message-ID: <20260711223707.42139-11-graf@amazon.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260711223707.42139-1-graf@amazon.com> References: <20260711223707.42139-1-graf@amazon.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [172.19.99.218] X-ClientProxiedBy: EX19D039UWA004.ant.amazon.com (10.13.139.68) To EX19D001UWA001.ant.amazon.com (10.13.138.214) Received-SPF: pass client-ip=52.12.53.23; envelope-from=prvs=645f258d4=graf@amazon.de; helo=pdx-out-010.esa.us-west-2.outbound.mail-perimeter.amazon.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.445, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, T_SPF_PERMERROR=0.01, UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@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-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Sender: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Convert the *_orphan() device-creation calls in hw/avr to the new parented API introduced earlier in this series, so every onboard device gets a stable path in the composition tree instead of landing in /machine/unattached with an unstable device[N] name. The parent for each device is the object that owns its lifetime: the machine for board-created devices, the containing device for composite children. Names follow existing QOM conventions. Per-site rationale (reviewers: dispute the modeling here): file:line | parent | name | rationale atmega.c:287 | OBJECT(dev) | "io" | unimplemented I/O placeholder is a fixed child of the Atmega SoC; SoC realize() creates it, SoC owns it Link: https://lore.kernel.org/qemu-devel/87jyr3w9tc.fsf@pond.sub.org/ Assisted-by: Kiro Signed-off-by: Alexander Graf --- hw/avr/atmega.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/avr/atmega.c b/hw/avr/atmega.c index a85bdf929a..5eb640f628 100644 --- a/hw/avr/atmega.c +++ b/hw/avr/atmega.c @@ -284,10 +284,10 @@ static void atmega_realize(DeviceState *dev, Error **errp) * 0x20 - 0x5f: I/O memory * 0x60 - 0xff: Extended I/O */ - s->io = qdev_new_orphan(TYPE_UNIMPLEMENTED_DEVICE); + s->io = qdev_new(OBJECT(dev), "io", TYPE_UNIMPLEMENTED_DEVICE); qdev_prop_set_string(s->io, "name", "I/O"); qdev_prop_set_uint64(s->io, "size", mc->io_size); - sysbus_realize_and_unref(SYS_BUS_DEVICE(s->io), &error_fatal); + sysbus_realize(SYS_BUS_DEVICE(s->io), &error_fatal); sysbus_mmio_map_overlap(SYS_BUS_DEVICE(s->io), 0, OFFSET_DATA, -1234); /* Power Reduction */ -- 2.47.1