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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 7EA1AE63CA3 for ; Sun, 25 Jan 2026 18:36:13 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vk4wO-0006q7-O7; Sun, 25 Jan 2026 13:34:28 -0500 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 1vk4wN-0006pA-Gs for qemu-devel@nongnu.org; Sun, 25 Jan 2026 13:34:27 -0500 Received: from zero.eik.bme.hu ([2001:738:2001:2001::2001]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vk4wM-0002pk-0M for qemu-devel@nongnu.org; Sun, 25 Jan 2026 13:34:27 -0500 Received: from localhost (localhost [127.0.0.1]) by zero.eik.bme.hu (Postfix) with ESMTP id E307B597507; Sun, 25 Jan 2026 19:34:24 +0100 (CET) X-Virus-Scanned: amavis at eik.bme.hu Received: from zero.eik.bme.hu ([127.0.0.1]) by localhost (zero.eik.bme.hu [127.0.0.1]) (amavis, port 10028) with ESMTP id Eg98KeEz_oQ5; Sun, 25 Jan 2026 19:34:23 +0100 (CET) Received: by zero.eik.bme.hu (Postfix, from userid 432) id 88F765974BA; Sun, 25 Jan 2026 18:50:55 +0100 (CET) Message-ID: From: BALATON Zoltan Subject: [PATCH v2 00/10] Implement memory_region_new_* functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit To: qemu-devel@nongnu.org Cc: Peter Xu , Akihiko Odaki , Paolo Bonzini , Michael S. Tsirkin , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Sun, 25 Jan 2026 18:50:55 +0100 (CET) Received-SPF: pass client-ip=2001:738:2001:2001::2001; envelope-from=balaton@eik.bme.hu; helo=zero.eik.bme.hu X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, 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: 2.1.29 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 Our documentation says that memory regions are automatically freed when the owner dies and the reference counting to do this is also implemented. However this relies on the QOM free funtion that can only be set by creating objects with object_new but memory API only provides constructors that call object_initialize which clears the free function that prevents QOM to manage the memory region lifetime. Implement corresponding memory_region_new_* functions that do the same as the memory_region_init_* functions but create the memory region with object_new so the lifetime can be automatically managed by QOM as documented. The memory_region_init functions are kept because they are useful for memory regions embedded in other object or managed externally and not by QOM for some reason. v2: - rebase on master - update documentation - use these function to fix some leaks (there may be more, e.g. in hw/pci-host/bonito but I leave that for later and/or others) BALATON Zoltan (10): memory: Add internal memory_region_set_ops helper function memory: Factor out common ram region initialization memory: Factor out more common ram region initialization memory: Shorten memory_region_init_rom_nomigrate memory: Add internal memory_region_register_ram function memory: Add memory_region_new* functions memory: Update documentation for memory_region_new*() hw/ide/sii3112: Use memory_region_new to avoid leaking regions hw/pci-host/articia: Map PCI memory windows in realize hw/pci-host/articia: Add variable for common type cast docs/devel/memory.rst | 21 +- hw/ide/sii3112.c | 30 +-- hw/pci-host/articia.c | 22 +- hw/ppc/amigaone.c | 28 +-- hw/ppc/pegasos.c | 13 -- include/system/memory.h | 360 ++++++++++++++++++++++++++++++ system/memory.c | 484 +++++++++++++++++++++++++--------------- 7 files changed, 713 insertions(+), 245 deletions(-) -- 2.41.3