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 72FF0C44520 for ; Sat, 18 Jul 2026 21:38:26 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wlCik-0008Up-2D; Sat, 18 Jul 2026 17:37:18 -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 1wlCii-0008UL-Q7; Sat, 18 Jul 2026 17:37:16 -0400 Received: from pdx-out-008.esa.us-west-2.outbound.mail-perimeter.amazon.com ([52.42.203.116]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wlCie-0001wz-2l; Sat, 18 Jul 2026 17:37:16 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazoncorp2; t=1784410632; x=1815946632; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=imkVOps/yWX3ZBP8cWj9IxE+fICf+Z04Yt15EQNgpq8=; b=LLL73OXiVLf/6US+4ESXMle0Pym54ZmoEM2m/Z5FPv3OQXP7q3eS8yh4 ejaaaHjvD5FVV0y8Z8T0WtOUyrOK/a2jvI9EZDjT5BzBqigUT2ALnnZCu xKYR1mfQ8s1G5YsCIBFZyZtGyEWaEHjLjfOEat1Cs8bp6z+clVlgEGGBT Ya+HQsegvscW5TbyHA3yngoHnaAlx979eTVzIU/rvABHcGE5VXiJJOZfk d/gofqQiJoDYUs8hM2BUpk2UzX4sJTIDaW5Fn4ylGR6egWk5tdPOIci1k x4SzUr5oarGi7VJirn3dHVwmtPosw/6bKhTMFpJIygCBziw0EvwC0JWtx Q==; X-CSE-ConnectionGUID: 3rh4ElaEQM+SyIqxLySL9w== X-CSE-MsgGUID: RnD2BcBCRwiActSi8+sggQ== X-IronPort-AV: E=Sophos;i="6.25,171,1779148800"; d="scan'208";a="23939435" Received: from ip-10-5-12-219.us-west-2.compute.internal (HELO smtpout.naws.us-west-2.prod.farcaster.email.amazon.dev) ([10.5.12.219]) by internal-pdx-out-008.esa.us-west-2.outbound.mail-perimeter.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jul 2026 21:37:05 +0000 Received: from EX19MTAUWC001.ant.amazon.com [205.251.233.53:13627] by smtpin.naws.us-west-2.prod.farcaster.email.amazon.dev [10.0.48.250:2525] with esmtp (Farcaster) id 16711ec8-e7af-479b-bffd-e235837eccf4; Sat, 18 Jul 2026 21:37:04 +0000 (UTC) X-Farcaster-Flow-ID: 16711ec8-e7af-479b-bffd-e235837eccf4 Received: from EX19D001UWA001.ant.amazon.com (10.13.138.214) by EX19MTAUWC001.ant.amazon.com (10.250.64.174) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.43; Sat, 18 Jul 2026 21:37:04 +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, 18 Jul 2026 21:36:54 +0000 From: Alexander Graf To: CC: , , , , Song Gao <17746591750@163.com>, Aditya Gupta , Alexey Kardashevskiy , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Farhan Ali , Alistair Francis , "Alistair Francis" , Antony Pavlov , Markus Armbruster , Artyom Tarasenko , BALATON Zoltan , Felipe Balbi , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= , 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 , Fabiano Rosas , 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 , Peter Xu , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , =?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 Subject: [RFC PATCH v2 000/137] qom: Make composition-tree parenting mandatory Date: Sat, 18 Jul 2026 21:34:35 +0000 Message-ID: <20260718213652.37673-1-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-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Originating-IP: [172.19.99.218] X-ClientProxiedBy: EX19D031UWA001.ant.amazon.com (10.13.139.88) To EX19D001UWA001.ant.amazon.com (10.13.138.214) Received-SPF: pass client-ip=52.42.203.116; envelope-from=prvs=65292d44c=graf@amazon.de; helo=pdx-out-008.esa.us-west-2.outbound.mail-perimeter.amazon.com X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 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, HEADER_FROM_DIFFERENT_DOMAINS=0.25, 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-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org Every board-created device, memory region and IRQ in QEMU that isn't explicitly parented today ends up in /machine/unattached with an unstable device[N] name. This series makes composition-tree parenting mandatory: it introduces object_new_child() and per-bus qdev_new()/pci_new()/... variants that take a QOM parent + child<> name, converts every board and device that used the old API, gives every named MemoryRegion and IRQ an explicit owner, and finally removes the /machine/unattached fallback so device_set_realized() errors when a device has no QOM parent. This is v2 of the RFC posted at [1]. RAMBlock idstrs and migration compatibility -------------------------------------------- Bernhard and Thomas raised the concern that giving a MemoryRegion an owner changes its RAMBlock idstr and thus breaks cross-version migration on versioned machine types. Tracing the derivation: idstr = [qdev_get_dev_path(dev) "/"] mr->name where dev = object_dynamic_cast(owner, TYPE_DEVICE) (patch 089 already made this dynamic). qdev_get_dev_path() returns non-NULL only when the device's parent bus class implements .get_dev_path -- SysBus does not; PCI and several other bus classes (spapr-vio, virtual-css, USB, virtio, NuBus, VMBus, ...) do. So converting owner from NULL to a Machine or a SysBus device leaves the idstr unchanged. Only NULL to a device on one of those bus classes changes it. Auditing all 78 NULL->owner RAM/ROM conversions on versioned machines (pc-*, q35-*, virt-*, pseries-*, s390-ccw-virtio-*, q800), exactly one is affected: hw/display/vmware_vga.c "vmsvga.fifo", whose owner becomes a PCI device. Patch 101 now uses the _nomigrate variant plus an explicit vmstate_register_ram_global() there, so the QOM owner is the PCI device but the migration idstr stays the historical bare "vmsvga.fifo". To answer Bernhard's follow-up question directly: QOM canonical paths themselves are not part of the migration stream. Only RAMBlock idstrs and vmstate instance_ids are, and neither derives from the QOM canonical path -- idstrs go through the bus-class .get_dev_path hook as above, and CPU/device instance_ids come from cpu_index or qdev_set_legacy_instance_id(). Verified with -dump-vmstate and 'info ramblock' diffs between v11.1.0-rc0 and this branch on pc-i440fx-11.0/9.0, pc-q35-11.0/9.0 (with and without -device vmware-svga), virt-11.0/9.0, pseries-11.0, s390-ccw-virtio-11.0 and q800: all identical. Changes since RFC v1 -------------------- - Rebased onto v11.1.0-rc0 (eca2c16212). - object_new_child() (patch 001): drop the runtime g_assert(parent) and g_assert(id), annotate the prototype with __attribute__((nonnull(1,2,3), returns_nonnull)) instead (Richard, Peter). Add g_assert(id[0] && !strchr(id, '/')) to reject empty names and the QOM path separator; the qdev id_wellformed() grammar does not apply here since QOM child<> names legitimately use "[*]" (Daniel, Peter). - sysbus_create_simple()/_varargs() (patch 004): add a doc-comment note that new code should prefer qdev_new() + sysbus_realize() (Philippe). - hw/display (patch 101): preserve the "vmsvga.fifo" RAMBlock idstr as described above (Bernhard, Thomas). - Every hw/ "Give memory regions an explicit owner" commit now states in its message that RAMBlock idstrs are unchanged and why. - Collected 14 Reviewed-by and 1 Acked-by tags from v1. The four scoped tags (imx-only on 094, coldfire/next-cube-only on 097, hexagon-only and e500-only on 129) are carried with a "# scope" suffix rather than splitting the patches; the migration analysis above shows the remaining hunks in those patches are also safe. On the argument order of object_new_child(parent, id, typename): kept as-is for consistency with object_initialize_child() and object_property_add_child(), which both take (parent, name, ...) first (Bernhard). Structure --------- 001-009 Core: object_new_child() and per-bus qdev/pci/isa/i2c/ ssi/usb/cpu creators taking (parent, id, ...) 010-082 hw/*: convert every board's *_orphan() call sites, one subdirectory per commit with a per-callsite rationale table 083-088 Delete *_orphan() device-creator variants; make memory_region_register_ram() dynamic-cast the owner 089-107 hw/*: give every named MemoryRegion an explicit owner; assert !name || owner in memory_region_do_init() 108-116 IRQ: qemu_allocate_irq*() take (owner, name, ...); convert callers; delete _orphan() variants 117-130 Non-device singletons (sysbus root, reset container, accel, per-devfn IOMMUs, board-created CPUs, ...) 131-132 Update in-tree /machine/unattached consumers; delete the /machine/unattached container and error on unparented realize 133-134 docs/devel/qom.rst; MAINTAINERS Not converted in this series ---------------------------- TYPE_MIGRATION (a never-realized pseudo-DeviceState used only for -global), RamDiscardManager (unref'd from within MemoryRegion finalize), TPM backends and VFIO containers (both belong under /objects and have their own lifecycle). These are noted as follow-ups. Testing ------- Builds cleanly for 20 softmmu targets. Every machine of every target boots to -S under qtest with no aborts. qtest-*/qom-test, qtest-*/device-introspect-test and qtest-*/test-hmp pass on all 20 targets. info qom-tree on q35 and aarch64 virt shows no /machine/unattached. -dump-vmstate and info ramblock are identical to the base on all versioned machines listed above. checkpatch reports three pre-existing false positives. AI assistance disclosure ------------------------ This series was developed with substantial AI assistance (Kiro, an Amazon-internal agent built on Anthropic Claude). Every patch carries an AI-used-for: tag per the convention proposed in [2]. That proposal is not yet merged; the in-tree policy still declines AI-assisted contributions, so I am posting this as an RFC under the "large-scale changes / get in touch beforehand" experiment path for design review only. Where possible the conversion is scripted (scripts/coccinelle/qom-parent/); the AI was used to drive the non-mechanical residue. I have reviewed and take DCO responsibility for every change. [1] https://lore.kernel.org/qemu-devel/20260711223707.42139-1-graf@amazon.com/ [2] https://lore.kernel.org/qemu-devel/20260529094619.1034458-1-pbonzini@redhat.com/ Cc: Laurent Vivier Cc: Peter Xu Cc: Fabiano Rosas Alexander Graf (137): qom: Introduce object_new_child() qdev: Rename qdev_new()/qdev_try_new() to *_orphan() qdev: Reintroduce qdev_new() with a mandatory QOM parent sysbus: Make sysbus_create_simple()/_varargs() take a QOM parent pci: Make pci_new*()/pci_create_simple*() take a QOM parent isa: Make isa_new()/isa_try_new()/isa_create_simple() take a QOM parent i2c: Make i2c_slave_new()/i2c_slave_create_simple() take a QOM parent ssi, usb: Make bus-layer creators take a QOM parent cpu: Make cpu_create() take a QOM parent hw/avr: Give onboard devices a QOM parent hw/tricore: Give onboard devices a QOM parent hw/xtensa: Give onboard devices a QOM parent hw/alpha: Give onboard devices a QOM parent hw/nitro: Give onboard devices a QOM parent hw/vmapple: Give onboard devices a QOM parent hw/hppa: Give onboard devices a QOM parent hw/microblaze: Give onboard devices a QOM parent hw/sh4: Give onboard devices a QOM parent hw/s390x: Give onboard devices a QOM parent hw/or1k: Give onboard devices a QOM parent hw/loongarch: Give onboard devices a QOM parent hw/intc: Give onboard devices a QOM parent hw/pci-host: Give onboard devices a QOM parent hw/core: Give onboard devices a QOM parent hw/remote: Give onboard devices a QOM parent hw/ufs: Give onboard devices a QOM parent hw/nvme: Give onboard devices a QOM parent hw/vfio: Give onboard devices a QOM parent hw/mem: Give onboard devices a QOM parent hw/cxl: Give onboard devices a QOM parent hw/hexagon: Give onboard devices a QOM parent hw/xen: Give onboard devices a QOM parent hw/display: Give onboard devices a QOM parent hw/nvram: Give onboard devices a QOM parent hw/dma: Give onboard devices a QOM parent hw/misc: Give onboard devices a QOM parent hw/scsi: Give onboard devices a QOM parent hw/net: Give onboard devices a QOM parent hw/ide: Give onboard devices a QOM parent hw/i3c: Give onboard devices a QOM parent hw/core/sysbus: Skip nested devices in foreach_dynamic_sysbus_device() hw/pci-bridge: Give onboard devices a QOM parent hw/sparc64: Give onboard devices a QOM parent hw/sparc: Give onboard devices a QOM parent hw/m68k: Give onboard devices a QOM parent hw/rtc: Give onboard devices a QOM parent hw/i2c: Give onboard devices a QOM parent hw/block: Give onboard devices a QOM parent hw/char: Give onboard devices a QOM parent hw/isa: Give onboard devices a QOM parent hw/pci: Give onboard devices a QOM parent hw/riscv: Give onboard devices a QOM parent hw/mips: Give onboard devices a QOM parent hw/i386: Give onboard devices a QOM parent hw/ppc: Give onboard devices a QOM parent hw/pci, hw/isa: Give VGA and slot-NIC helpers a QOM parent hw/arm/virt: Give onboard devices a QOM parent hw/arm/sbsa-ref: Give onboard devices a QOM parent hw/arm/xilinx-zynq: Give onboard devices a QOM parent hw/arm/xlnx-versal, xlnx-zynqmp: Give onboard devices a QOM parent hw/arm/realview, integratorcp: Give onboard devices a QOM parent hw/arm/npcm: Give onboard devices a QOM parent hw/arm/versatile, vexpress: Give onboard devices a QOM parent hw/arm/stellaris, musicpal: Give onboard devices a QOM parent hw/arm/exynos: Give onboard devices a QOM parent hw/arm/allwinner: Give onboard devices a QOM parent hw/arm/strongarm: Give onboard devices a QOM parent hw/arm/omap: Give onboard devices a QOM parent hw/arm/mps2: Give onboard devices a QOM parent hw/arm/imx: Give onboard devices a QOM parent hw/arm/misc: Give onboard devices a QOM parent hw/arm/aspeed: Give onboard devices a QOM parent (part 1) hw/arm/aspeed: Give onboard devices a QOM parent (part 2) hw/nvram/at24c: Give at24c_eeprom_init() a QOM parent hw/i386/pc: Give pcspk a QOM parent hw/timer, hw/net: Give i8254 and isa-ne2000 helpers a QOM parent hw/misc/unimp: Give create_unimplemented_device() a QOM parent hw/usb: Give -usbdevice and auto-hub devices a QOM parent hw/audio: Give -audio model= devices a QOM parent hw/xen: Give xenstore-driven backend devices a QOM parent hw/nitro: Give the vsock bridge a QOM parent hw/isa: Give the isabus-bridge a QOM parent net, target/mips: Give -nic and CPU-with-clock helpers a QOM parent usb, ssi, i2c: Remove *_orphan() creator variants isa: Remove *_orphan() creator variants pci: Remove *_orphan() creator variants cpu: Remove cpu_create_orphan() sysbus: Remove *_orphan() creator variants qdev: Remove qdev_new_orphan() and qdev_try_new_orphan() memory: Accept non-device owners in memory_region_init_ram() hw/misc-boards: Give memory regions an explicit owner hw/mips: Give memory regions an explicit owner hw/riscv: Give memory regions an explicit owner hw/i386: Give memory regions an explicit owner hw/arm: Give memory regions an explicit owner hw/arm/omap1: Give memory regions an explicit owner hw/sh4: Give memory regions an explicit owner hw/m68k: Give memory regions an explicit owner hw/ppc: Give memory regions an explicit owner hw/tricore: Give memory regions an explicit owner hw/xtensa: Give memory regions an explicit owner hw/display: Give memory regions an explicit owner hw/arm/omap: Give lcdc and dma memory regions an explicit owner hw/char: Give parallel and htif memory regions an explicit owner hw/remote: Give memory regions an explicit owner system, backends: Give named memory regions an explicit owner hw/ide: Let ide_init_ioport() take an explicit owner memory: Require an owner for named memory regions irq: Rename qemu_allocate_irq*() and friends to *_orphan() irq: Reintroduce qemu_allocate_irq*() with a mandatory owner and name hw/pci, hw/usb, system: Give allocated IRQs an owner and name hw/i386, hw/xen: Give allocated IRQs an owner and name hw/arm: Give allocated IRQs an owner and name hw/xtensa: Give allocated IRQs an owner and name hw: Give allocated IRQs an owner and name hw/core: Parent GPIO input IRQs and embedded IRQState via QOM irq: Delete the *_orphan() IRQ allocation variants sysbus: Parent main-system-bus directly under /machine accel: Parent the accelerator singleton under /machine hw/intc/mips_gic: Register reset handler at realize, not instance_init hw/core/reset: Give the root reset container and legacy shims a QOM path system: Parent per-MR helper objects under their owner hw/virtio, hw/display: Parent per-device helper objects hw/i386/amd_iommu: Parent internally-created AMDVI-PCI under the IOMMU hw/s390x, hw/remote: Parent per-devfn IOMMU objects hw/pci-host/raven: Parent the OR-IRQ under the host bridge hw/arm/mps2: Parent the OR-IRQ gates under the machine hw/arm/digic: Parent the DIGIC SoC under the machine hw/microblaze: Parent the CPU under the machine hw: Pair object_initialize_child() with plain realize() hw: Parent board-created CPUs under the machine hw/pci-host/versatile: Use object_initialize_child() for pci_dev docs, qapi, scripts, iotests: Update /machine/unattached path references qom: Delete /machine/unattached and error on unparented realize tests/qtest/qom-test: Add smp-max init-time ceiling test docs/devel/qom: Document the composition-tree parenting contract MAINTAINERS: Add scripts/coccinelle/qom-parent/ under QOM MAINTAINERS | 1 + accel/accel-system.c | 4 +- backends/igvm.c | 6 +- bsd-user/main.c | 3 +- docs/devel/qom.rst | 96 +++++++ docs/devel/s390-cpu-topology.rst | 2 +- docs/system/cpu-hotplug.rst | 4 +- hw/alpha/alpha_sys.h | 3 +- hw/alpha/dp264.c | 16 +- hw/alpha/typhoon.c | 10 +- hw/arm/allwinner-a10.c | 4 +- hw/arm/allwinner-h3.c | 34 ++- hw/arm/allwinner-r40.c | 4 +- hw/arm/armsse.c | 13 +- hw/arm/aspeed.c | 39 +-- hw/arm/aspeed_ast1040_evb.c | 6 +- hw/arm/aspeed_ast10x0_evb.c | 12 +- hw/arm/aspeed_ast2400_palmetto.c | 8 +- hw/arm/aspeed_ast2400_quanta-q71l.c | 18 +- hw/arm/aspeed_ast2400_supermicrox11.c | 8 +- hw/arm/aspeed_ast2500_evb.c | 7 +- hw/arm/aspeed_ast2500_g220a.c | 11 +- hw/arm/aspeed_ast2500_romulus.c | 3 +- hw/arm/aspeed_ast2500_supermicro-x11spi.c | 8 +- hw/arm/aspeed_ast2500_tiogapass.c | 13 +- hw/arm/aspeed_ast2500_witherspoon.c | 34 +-- hw/arm/aspeed_ast2500_yosemitev2.c | 13 +- hw/arm/aspeed_ast2600_anacapa.c | 51 ++-- hw/arm/aspeed_ast2600_bletchley.c | 33 ++- hw/arm/aspeed_ast2600_catalina.c | 99 +++---- hw/arm/aspeed_ast2600_evb.c | 7 +- hw/arm/aspeed_ast2600_fby35.c | 20 +- hw/arm/aspeed_ast2600_fuji.c | 111 ++++---- hw/arm/aspeed_ast2600_gb200nvl.c | 24 +- hw/arm/aspeed_ast2600_rainier.c | 188 ++++++++------ hw/arm/aspeed_ast27x0-fc.c | 9 +- hw/arm/aspeed_ast27x0_evb.c | 3 +- hw/arm/aspeed_soc_common.c | 14 +- hw/arm/bananapi_m2u.c | 6 +- hw/arm/collie.c | 6 +- hw/arm/cubieboard.c | 6 +- hw/arm/digic_boards.c | 5 +- hw/arm/exynos4210.c | 70 ++--- hw/arm/exynos4_boards.c | 15 +- hw/arm/fsl-imx25.c | 2 +- hw/arm/fsl-imx31.c | 2 +- hw/arm/fsl-imx6.c | 7 +- hw/arm/fsl-imx6ul.c | 37 +-- hw/arm/fsl-imx7.c | 41 +-- hw/arm/fsl-imx8mm.c | 2 +- hw/arm/fsl-imx8mp.c | 2 +- hw/arm/imx25_pdk.c | 6 +- hw/arm/imx8mm-evk.c | 6 +- hw/arm/imx8mp-evk.c | 6 +- hw/arm/integratorcp.c | 56 ++-- hw/arm/kzm.c | 6 +- hw/arm/max78000_soc.c | 107 ++++---- hw/arm/max78000fthr.c | 5 +- hw/arm/mcimx6ul-evk.c | 4 +- hw/arm/mcimx7d-sabre.c | 4 +- hw/arm/mps2-tz.c | 27 +- hw/arm/mps2.c | 91 ++++--- hw/arm/mps3r.c | 20 +- hw/arm/msf2-soc.c | 24 +- hw/arm/msf2-som.c | 12 +- hw/arm/musca.c | 4 +- hw/arm/musicpal.c | 50 ++-- hw/arm/netduino2.c | 5 +- hw/arm/netduinoplus2.c | 5 +- hw/arm/npcm7xx.c | 95 +++---- hw/arm/npcm7xx_boards.c | 117 +++++---- hw/arm/npcm8xx.c | 147 +++++------ hw/arm/npcm8xx_boards.c | 19 +- hw/arm/nrf51_soc.c | 4 +- hw/arm/olimex-stm32-h405.c | 5 +- hw/arm/omap1.c | 244 ++++++++++-------- hw/arm/omap_sx1.c | 20 +- hw/arm/orangepi.c | 4 +- hw/arm/raspi.c | 4 +- hw/arm/realview.c | 113 ++++---- hw/arm/sabrelite.c | 5 +- hw/arm/sbsa-ref.c | 89 +++---- hw/arm/stellaris.c | 99 ++++--- hw/arm/stm32f100_soc.c | 62 ++--- hw/arm/stm32f205_soc.c | 2 +- hw/arm/stm32f405_soc.c | 88 +++---- hw/arm/stm32l4x5_soc.c | 88 +++---- hw/arm/stm32vldiscovery.c | 5 +- hw/arm/strongarm.c | 27 +- hw/arm/strongarm.h | 2 +- hw/arm/versatilepb.c | 85 +++--- hw/arm/vexpress.c | 87 ++++--- hw/arm/virt.c | 103 ++++---- hw/arm/xilinx_zynq.c | 160 ++++++------ hw/arm/xlnx-versal-virt.c | 5 +- hw/arm/xlnx-versal.c | 197 ++++++-------- hw/arm/xlnx-zcu102.c | 14 +- hw/arm/xlnx-zynqmp.c | 8 +- hw/audio/intel-hda.c | 4 +- hw/audio/model.c | 5 +- hw/avr/atmega.c | 24 +- hw/block/fdc-sysbus.c | 13 +- hw/block/fdc.c | 4 +- hw/block/pflash_cfi01.c | 6 +- hw/block/pflash_cfi02.c | 6 +- hw/block/xen-block.c | 5 +- hw/char/diva-gsp.c | 3 +- hw/char/exynos4210_uart.c | 6 +- hw/char/mcf_uart.c | 11 +- hw/char/mchp_pfsoc_mmuart.c | 4 +- hw/char/omap_uart.c | 4 +- hw/char/parallel-isa.c | 10 +- hw/char/parallel.c | 5 +- hw/char/pl011.c | 6 +- hw/char/riscv_htif.c | 5 +- hw/char/serial-isa.c | 11 +- hw/char/serial-mm.c | 6 +- hw/char/sifive_uart.c | 8 +- hw/char/spapr_vty.c | 6 +- hw/char/xen_console.c | 7 +- hw/core/cpu-common.c | 6 +- hw/core/gpio.c | 24 +- hw/core/irq.c | 38 +-- hw/core/null-machine.c | 2 +- hw/core/qdev-user.c | 6 +- hw/core/qdev.c | 40 ++- hw/core/reset.c | 13 +- hw/core/sysbus.c | 32 ++- hw/cxl/cxl-host.c | 9 +- hw/display/cg3.c | 2 +- hw/display/g364fb.c | 2 +- hw/display/macfb.c | 2 +- hw/display/omap_lcdc.c | 5 +- hw/display/sii9022.c | 2 +- hw/display/sm501.c | 6 +- hw/display/vhost-user-gpu.c | 12 +- hw/display/virtio-gpu-gl.c | 2 +- hw/display/vmware_vga.c | 12 +- hw/display/xlnx_dp.c | 14 +- hw/dma/i8257.c | 10 +- hw/dma/omap_dma.c | 9 +- hw/dma/rc4030.c | 7 +- hw/hexagon/hexagon_dsp.c | 21 +- hw/hexagon/virt.c | 29 +-- hw/hppa/machine.c | 96 ++++--- hw/i2c/aspeed_i2c.c | 4 +- hw/i2c/core.c | 22 +- hw/i2c/smbus_eeprom.c | 11 +- hw/i386/amd_iommu.c | 3 +- hw/i386/isapc.c | 17 +- hw/i386/kvm/clock.c | 4 +- hw/i386/kvm/clock.h | 2 +- hw/i386/kvm/i8259.c | 8 +- hw/i386/kvm/xen-stubs.c | 2 +- hw/i386/kvm/xen_evtchn.c | 6 +- hw/i386/kvm/xen_evtchn.h | 3 +- hw/i386/kvm/xen_gnttab.c | 6 +- hw/i386/kvm/xen_gnttab.h | 2 +- hw/i386/kvm/xen_overlay.c | 6 +- hw/i386/kvm/xen_overlay.h | 2 +- hw/i386/kvm/xen_primary_console.c | 5 +- hw/i386/kvm/xen_primary_console.h | 2 +- hw/i386/kvm/xen_xenstore.c | 5 +- hw/i386/kvm/xen_xenstore.h | 2 +- hw/i386/microvm.c | 34 +-- hw/i386/nitro_enclave.c | 9 +- hw/i386/pc.c | 96 +++---- hw/i386/pc_piix.c | 28 +- hw/i386/pc_q35.c | 42 +-- hw/i386/pc_sysfw.c | 16 +- hw/i386/sgx.c | 5 +- hw/i386/x86-common.c | 33 ++- hw/i386/x86-cpu.c | 4 +- hw/i386/xen/xen-hvm.c | 12 +- hw/i386/xen/xen-pvh.c | 5 +- hw/i386/xen/xen_pvdevice.c | 2 +- hw/i3c/core.c | 19 +- hw/ide/ahci.c | 2 +- hw/ide/ide-bus.c | 5 +- hw/ide/ide-internal.h | 2 +- hw/ide/ioport.c | 37 ++- hw/ide/isa.c | 9 +- hw/ide/pci.c | 2 +- hw/ide/piix.c | 2 +- hw/intc/apic_common.c | 3 +- hw/intc/exynos4210_gic.c | 4 +- hw/intc/i8259.c | 6 +- hw/intc/i8259_common.c | 7 +- hw/intc/mips_gic.c | 2 +- hw/intc/riscv_aclint.c | 16 +- hw/intc/riscv_aplic.c | 13 +- hw/intc/riscv_imsic.c | 7 +- hw/intc/s390_flic.c | 12 +- hw/intc/sh_intc.c | 21 +- hw/intc/sifive_plic.c | 7 +- hw/ipack/ipack.c | 11 +- hw/ipmi/ipmi_bt.c | 2 +- hw/ipmi/ipmi_kcs.c | 2 +- hw/isa/i82378.c | 13 +- hw/isa/isa-bus.c | 44 ++-- hw/isa/isa-superio.c | 25 +- hw/isa/lpc_ich9.c | 2 +- hw/isa/piix.c | 4 +- hw/isa/vt82c686.c | 7 +- hw/loongarch/virt.c | 62 +++-- hw/m68k/an5206.c | 13 +- hw/m68k/mcf5206.c | 8 +- hw/m68k/mcf5208.c | 32 ++- hw/m68k/mcf_intc.c | 7 +- hw/m68k/next-cube.c | 26 +- hw/m68k/q800.c | 28 +- hw/m68k/virt.c | 25 +- hw/mem/sparse-mem.c | 6 +- hw/microblaze/petalogix_ml605_mmu.c | 40 ++- hw/microblaze/petalogix_s3adsp1800_mmu.c | 27 +- hw/microblaze/xlnx-zynqmp-pmu.c | 4 +- hw/mips/boston.c | 32 +-- hw/mips/cps.c | 5 +- hw/mips/fuloong2e.c | 24 +- hw/mips/jazz.c | 73 +++--- hw/mips/loongson3_virt.c | 40 +-- hw/mips/malta.c | 49 ++-- hw/mips/mips_int.c | 2 +- hw/misc/empty_slot.c | 7 +- hw/misc/led.c | 15 +- hw/misc/macio/macio.c | 2 +- hw/misc/sifive_e_prci.c | 6 +- hw/misc/sifive_test.c | 6 +- hw/net/can/can_kvaser_pci.c | 2 +- hw/net/imx_fec.c | 4 +- hw/net/lan9118.c | 10 +- hw/net/smc91c111.c | 6 +- hw/net/spapr_llan.c | 6 +- hw/net/xen_nic.c | 5 +- hw/nitro/machine.c | 11 +- hw/nitro/nitro-vsock-bus.c | 9 +- hw/nubus/nubus-virtio-mmio.c | 2 +- hw/nvme/ctrl.c | 2 +- hw/nvram/eeprom_at24c.c | 12 +- hw/nvram/fw_cfg.c | 16 +- hw/or1k/or1k-sim.c | 25 +- hw/or1k/virt.c | 43 +-- hw/pci-bridge/pci_expander_bridge.c | 13 +- hw/pci-host/articia.c | 6 +- hw/pci-host/astro.c | 8 +- hw/pci-host/bonito.c | 28 +- hw/pci-host/grackle.c | 2 +- hw/pci-host/gt64120.c | 5 +- hw/pci-host/i440fx.c | 2 +- hw/pci-host/mv64361.c | 4 +- hw/pci-host/pnv_phb.c | 5 +- hw/pci-host/pnv_phb3.c | 3 +- hw/pci-host/pnv_phb3_msi.c | 3 +- hw/pci-host/pnv_phb4.c | 3 +- hw/pci-host/pnv_phb4_pec.c | 3 +- hw/pci-host/ppc4xx_pci.c | 2 +- hw/pci-host/ppce500.c | 2 +- hw/pci-host/raven.c | 6 +- hw/pci-host/sabre.c | 12 +- hw/pci-host/sh_pci.c | 3 +- hw/pci-host/uninorth.c | 11 +- hw/pci-host/versatile.c | 3 +- hw/pci/pci.c | 60 +++-- hw/pci/pcie_sriov.c | 5 +- hw/ppc/amigaone.c | 24 +- hw/ppc/e500.c | 70 ++--- hw/ppc/mac_newworld.c | 58 +++-- hw/ppc/mac_oldworld.c | 32 +-- hw/ppc/pegasos.c | 22 +- hw/ppc/pnv.c | 33 +-- hw/ppc/pnv_bmc.c | 4 +- hw/ppc/pnv_lpc.c | 6 +- hw/ppc/pnv_psi.c | 6 +- hw/ppc/ppc440.h | 2 +- hw/ppc/ppc440_bamboo.c | 17 +- hw/ppc/ppc440_uc.c | 10 +- hw/ppc/ppc4xx_sdram.c | 34 +-- hw/ppc/prep.c | 50 ++-- hw/ppc/sam460ex.c | 72 +++--- hw/ppc/spapr.c | 38 +-- hw/ppc/spapr_irq.c | 6 +- hw/ppc/spapr_vio.c | 6 +- hw/ppc/virtex_ml507.c | 23 +- hw/remote/iommu.c | 7 +- hw/remote/machine.c | 6 +- hw/remote/memory.c | 3 +- hw/remote/vfio-user-obj.c | 2 +- hw/riscv/aia.c | 12 +- hw/riscv/aia.h | 3 +- hw/riscv/boston-aia.c | 31 ++- hw/riscv/cps.c | 14 +- hw/riscv/k230.c | 127 ++++----- hw/riscv/microblaze-v-generic.c | 51 ++-- hw/riscv/microchip_pfsoc.c | 90 +++---- hw/riscv/opentitan.c | 52 ++-- hw/riscv/shakti_c.c | 8 +- hw/riscv/sifive_e.c | 25 +- hw/riscv/sifive_u.c | 39 +-- hw/riscv/spike.c | 8 +- hw/riscv/tt_atlantis.c | 17 +- hw/riscv/virt.c | 62 ++--- hw/riscv/xiangshan_kmh.c | 20 +- hw/rtc/ls7a_rtc.c | 2 +- hw/rtc/mc146818rtc.c | 6 +- hw/rtc/sun4v-rtc.c | 6 +- hw/s390x/ap-bridge.c | 6 +- hw/s390x/css-bridge.c | 7 +- hw/s390x/s390-pci-bus.c | 13 +- hw/s390x/s390-virtio-ccw.c | 41 ++- hw/scsi/esp-pci.c | 2 +- hw/scsi/lasi_ncr710.c | 8 +- hw/scsi/lasi_ncr710.h | 4 +- hw/scsi/ncr53c710.c | 15 +- hw/scsi/ncr53c710.h | 7 +- hw/scsi/scsi-bus.c | 5 +- hw/scsi/spapr_vscsi.c | 6 +- hw/sh4/r2d.c | 38 +-- hw/sh4/sh7750.c | 35 +-- hw/sparc/leon3.c | 27 +- hw/sparc/sun4m.c | 167 ++++++------ hw/sparc64/niagara.c | 20 +- hw/sparc64/sparc64.c | 3 +- hw/sparc64/sun4u.c | 69 ++--- hw/ssi/ssi.c | 7 +- hw/timer/arm_timer.c | 6 +- hw/timer/sh_timer.c | 9 +- hw/tricore/tc27x_soc.c | 77 +++--- hw/tricore/tricore_testboard.c | 19 +- hw/ufs/lu.c | 5 +- hw/usb/bus.c | 15 +- hw/usb/dev-serial.c | 3 +- hw/usb/vt82c686-uhci-pci.c | 4 +- hw/vfio/igd.c | 5 +- hw/virtio/virtio-mem.c | 5 +- hw/vmapple/vmapple.c | 66 ++--- hw/xen/xen-bus.c | 5 +- hw/xen/xen-legacy-backend.c | 5 +- hw/xen/xen-pvh-common.c | 26 +- hw/xen/xen_pt_graphics.c | 3 +- hw/xtensa/mx_pic.c | 8 +- hw/xtensa/pic_cpu.c | 5 +- hw/xtensa/sim.c | 15 +- hw/xtensa/virt.c | 4 +- hw/xtensa/xtensa_memory.c | 5 +- hw/xtensa/xtensa_memory.h | 3 +- hw/xtensa/xtfpga.c | 51 ++-- include/hw/arm/aspeed.h | 6 +- include/hw/arm/aspeed_soc.h | 3 +- include/hw/arm/exynos4210.h | 2 +- include/hw/arm/omap.h | 11 +- include/hw/block/fdc.h | 5 +- include/hw/block/flash.h | 4 +- include/hw/char/mchp_pfsoc_mmuart.h | 2 +- include/hw/char/parallel.h | 5 +- include/hw/char/pl011.h | 2 +- include/hw/char/riscv_htif.h | 3 +- include/hw/char/serial-isa.h | 2 +- include/hw/char/serial-mm.h | 2 +- include/hw/char/sifive_uart.h | 4 +- include/hw/core/cpu.h | 11 +- include/hw/core/irq.h | 27 +- include/hw/core/qdev.h | 50 ++-- include/hw/core/sysbus.h | 33 ++- include/hw/i2c/i2c.h | 29 ++- include/hw/i2c/smbus_eeprom.h | 5 +- include/hw/i386/pc.h | 6 +- include/hw/i386/vmport.h | 5 - include/hw/i386/x86.h | 7 +- include/hw/i3c/i3c.h | 9 +- include/hw/ide/isa.h | 3 +- include/hw/intc/i8259.h | 4 +- include/hw/intc/riscv_aclint.h | 6 +- include/hw/intc/riscv_aplic.h | 5 +- include/hw/intc/riscv_imsic.h | 3 +- include/hw/intc/sifive_plic.h | 3 +- include/hw/isa/i8259_internal.h | 3 +- include/hw/isa/isa.h | 11 +- include/hw/m68k/mcf.h | 7 +- include/hw/mem/sparse-mem.h | 2 +- include/hw/mips/mips.h | 5 +- include/hw/misc/empty_slot.h | 3 +- include/hw/misc/sifive_e_prci.h | 2 +- include/hw/misc/sifive_test.h | 2 +- include/hw/misc/unimp.h | 9 +- include/hw/net/lan9118.h | 2 +- include/hw/net/ne2000-isa.h | 8 +- include/hw/net/smc91c111.h | 2 +- include/hw/nitro/nitro-vsock-bus.h | 2 +- include/hw/nvram/eeprom_at24c.h | 6 +- include/hw/pci/pci.h | 19 +- include/hw/ppc/pnv.h | 2 +- include/hw/ppc/spapr_vio.h | 8 +- include/hw/rtc/mc146818rtc.h | 2 +- include/hw/rtc/sun4v-rtc.h | 2 +- include/hw/sh4/sh.h | 3 +- include/hw/sh4/sh_intc.h | 3 +- include/hw/ssi/ssi.h | 3 +- include/hw/timer/i8254.h | 13 +- include/hw/timer/tmu012.h | 3 +- include/hw/usb/usb.h | 13 +- include/hw/xen/xen.h | 2 +- include/hw/xtensa/mx_pic.h | 4 +- include/net/net.h | 5 +- include/qom/object.h | 32 +++ linux-user/main.c | 6 +- net/net.c | 10 +- qapi/block-core.json | 12 +- qapi/block.json | 2 +- qapi/machine.json | 12 +- qapi/qom.json | 4 +- qom/object.c | 12 + scripts/arm_processor_error.py | 3 +- .../qom-parent/cpu-create-orphan.cocci | 13 + .../qom-parent/i2c-slave-new-orphan.cocci | 18 ++ .../coccinelle/qom-parent/irq-rename.cocci | 15 ++ .../qom-parent/isa-new-orphan.cocci | 23 ++ .../qom-parent/pci-new-orphan.cocci | 28 ++ .../qom-parent/qdev-new-orphan.cocci | 18 ++ .../qom-parent/ssi-usb-orphan.cocci | 18 ++ .../qom-parent/sysbus-create-orphan.cocci | 18 ++ scripts/qmp_helper.py | 2 +- stubs/xen-hw-stub.c | 2 +- system/ioport.c | 12 +- system/memory.c | 24 +- system/physmem.c | 4 +- system/qdev-monitor.c | 2 +- system/qtest.c | 2 +- system/ram-block-attributes.c | 7 +- system/vl.c | 3 +- target/mips/cpu.c | 5 +- target/mips/cpu.h | 3 +- target/xtensa/cpu.c | 11 - target/xtensa/cpu.h | 2 - tests/qemu-iotests/172.out | 72 +++--- tests/qemu-iotests/186.out | 10 +- tests/qemu-iotests/common.filter | 2 +- tests/qtest/fuzz/generic_fuzz.c | 2 +- tests/qtest/qom-test.c | 35 +++ tests/unit/test-qdev-global-props.c | 17 +- tests/unit/test-qdev.c | 12 +- 440 files changed, 4588 insertions(+), 3817 deletions(-) create mode 100644 scripts/coccinelle/qom-parent/cpu-create-orphan.cocci create mode 100644 scripts/coccinelle/qom-parent/i2c-slave-new-orphan.cocci create mode 100644 scripts/coccinelle/qom-parent/irq-rename.cocci create mode 100644 scripts/coccinelle/qom-parent/isa-new-orphan.cocci create mode 100644 scripts/coccinelle/qom-parent/pci-new-orphan.cocci create mode 100644 scripts/coccinelle/qom-parent/qdev-new-orphan.cocci create mode 100644 scripts/coccinelle/qom-parent/ssi-usb-orphan.cocci create mode 100644 scripts/coccinelle/qom-parent/sysbus-create-orphan.cocci base-commit: eca2c16212ef9dcb0871de39bb9d1c2efebe76be -- 2.47.1