From nobody Thu Nov 13 20:40:37 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1582580562; cv=none; d=zohomail.com; s=zohoarc; b=DQt8T2BAx4FxjqI8A5VbovCzpnOAAmghVHUWdnJB0TBWGFLOD+AxUAz27dhXjR3TUS4NWaHPM6m+G1T0xs5+hj1wc0BrpDyE39E1QQU1MQk3nLRHXfR+8rNP5JoIBkpAtdgOjFyydv6m/h6Q/+u6D1zqgaRGpwJC9DFjRDJfVEc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1582580562; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=rmrQdlXnA/jIW2pFbe6JSKjkAJeY5OyoEuZkOnpt8X8=; b=LYM2YpcxDqiYuhml9s17I+mqAHtbl9jPGJwcWPsTp0rUj4S7YspO2AesAm2Qyy6xO9T+yoFNye6syHh28mRllfb8O9iOk+0gmPqUD+6twzh6EiCidxep2XgRxIRvIRGXAmF/HtH8U4P/9Ro18aylujvcqHzYvani4VCWkc0sYBg= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1582580562520993.8137395541268; Mon, 24 Feb 2020 13:42:42 -0800 (PST) Received: from localhost ([::1]:44336 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j6LUu-0002Vf-Qi for importer@patchew.org; Mon, 24 Feb 2020 16:42:41 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:52986) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j6Kqk-0006Xm-KC for qemu-devel@nongnu.org; Mon, 24 Feb 2020 16:01:12 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j6Kqi-00072Q-Pu for qemu-devel@nongnu.org; Mon, 24 Feb 2020 16:01:10 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:25959 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j6Kqi-000715-EF for qemu-devel@nongnu.org; Mon, 24 Feb 2020 16:01:08 -0500 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-68-IQ06hTSpOlaokjmfvr9NAA-1; Mon, 24 Feb 2020 16:01:04 -0500 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id CFA458010F0; Mon, 24 Feb 2020 21:01:00 +0000 (UTC) Received: from x1w.redhat.com (ovpn-205-162.brq.redhat.com [10.40.205.162]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 595675C651; Mon, 24 Feb 2020 21:00:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1582578066; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rmrQdlXnA/jIW2pFbe6JSKjkAJeY5OyoEuZkOnpt8X8=; b=BRH70wyoK4VLBI1cLFv5KTSI9QrMKRE6Q+afir6qf5OZPAcB5x94EWN8h7t0vnnOHXlz/x bQv6+XPN2Rai7A6SHRRP6AD2GfG12GDmm8IefPp/whRc9YQiqVy9hJqS42Ll+d23HaI3eS W6WPbqPzKX036g5WbEnGqSXQ9bEj8oQ= X-MC-Unique: IQ06hTSpOlaokjmfvr9NAA-1 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org, Paolo Bonzini , Peter Maydell Subject: [PATCH RESEND v2 22/32] scripts/cocci: Patch to let devices own their MemoryRegions Date: Mon, 24 Feb 2020 21:55:23 +0100 Message-Id: <20200224205533.23798-23-philmd@redhat.com> In-Reply-To: <20200224205533.23798-1-philmd@redhat.com> References: <20200224205533.23798-1-philmd@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sagar Karandikar , "Michael S. Tsirkin" , Jason Wang , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Mark Cave-Ayland , KONRAD Frederic , Alistair Francis , "Edgar E. Iglesias" , Subbaraya Sundeep , qemu-block@nongnu.org, Magnus Damm , =?UTF-8?q?Herv=C3=A9=20Poussineau?= , Joel Stanley , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Aleksandar Rikalo , David Gibson , Artyom Tarasenko , Eduardo Habkost , Jean-Christophe Dubois , Alistair Francis , Fabien Chouteau , qemu-arm@nongnu.org, Peter Chubb , Palmer Dabbelt , Richard Henderson , Kevin Wolf , qemu-riscv@nongnu.org, Igor Mitsyanko , Bastian Koppelmann , Laurent Vivier , Max Reitz , Michael Walle , qemu-ppc@nongnu.org, Aleksandar Markovic , Aurelien Jarno Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" When a device creates a MemoryRegion without setting its ownership, the MemoryRegion is added to the machine "/unattached" container in the QOM tree. Example with the Samsung SMDKC210 board: $ arm-softmmu/qemu-system-arm -M smdkc210 -S -monitor stdio (qemu) info qom-tree /machine (smdkc210-machine) /unattached (container) /io[0] (qemu:memory-region) /exynos4210.dram0[0] (qemu:memory-region) /exynos4210.irom[0] (qemu:memory-region) /exynos4210.iram[0] (qemu:memory-region) /exynos4210.chipid[0] (qemu:memory-region) ... /device[26] (exynos4210.uart) /exynos4210.uart[0] (qemu:memory-region) /soc (exynos4210) ^ \__ [*] The irom/iram/chipid regions should go under 'soc' at [*]. Add a semantic patch to let the device own the memory region. Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- v2: Remove memory_region_init_ram() change which might break migration (Peter Maydell) --- .../memory-region-housekeeping.cocci | 56 +++++++++++++++++++ 1 file changed, 56 insertions(+) diff --git a/scripts/coccinelle/memory-region-housekeeping.cocci b/scripts/= coccinelle/memory-region-housekeeping.cocci index 5e6b31d8ba..c768d8140a 100644 --- a/scripts/coccinelle/memory-region-housekeeping.cocci +++ b/scripts/coccinelle/memory-region-housekeeping.cocci @@ -101,3 +101,59 @@ expression ERRP; +memory_region_init_rom_device(MR, NULL, OPS, OPAQUE, NAME, SIZE, ERRP); ... -vmstate_register_ram_global(MR); + + +// Device is owner +@@ +typedef DeviceState; +identifier device_fn, dev, obj; +expression E1, E2, E3, E4, E5; +@@ +static void device_fn(DeviceState *dev, ...) +{ + ... + Object *obj =3D OBJECT(dev); + <+... +( +- memory_region_init(E1, NULL, E2, E3); ++ memory_region_init(E1, obj, E2, E3); +| +- memory_region_init_io(E1, NULL, E2, E3, E4, E5); ++ memory_region_init_io(E1, obj, E2, E3, E4, E5); +| +- memory_region_init_alias(E1, NULL, E2, E3, E4, E5); ++ memory_region_init_alias(E1, obj, E2, E3, E4, E5); +| +- memory_region_init_rom(E1, NULL, E2, E3, E4); ++ memory_region_init_rom(E1, obj, E2, E3, E4); +| +- memory_region_init_ram_shared_nomigrate(E1, NULL, E2, E3, E4, E5); ++ memory_region_init_ram_shared_nomigrate(E1, obj, E2, E3, E4, E5); +) + ...+> +} +@@ +identifier device_fn, dev; +expression E1, E2, E3, E4, E5; +@@ +static void device_fn(DeviceState *dev, ...) +{ + <+... +( +- memory_region_init(E1, NULL, E2, E3); ++ memory_region_init(E1, OBJECT(dev), E2, E3); +| +- memory_region_init_io(E1, NULL, E2, E3, E4, E5); ++ memory_region_init_io(E1, OBJECT(dev), E2, E3, E4, E5); +| +- memory_region_init_alias(E1, NULL, E2, E3, E4, E5); ++ memory_region_init_alias(E1, OBJECT(dev), E2, E3, E4, E5); +| +- memory_region_init_rom(E1, NULL, E2, E3, E4); ++ memory_region_init_rom(E1, OBJECT(dev), E2, E3, E4); +| +- memory_region_init_ram_shared_nomigrate(E1, NULL, E2, E3, E4, E5); ++ memory_region_init_ram_shared_nomigrate(E1, OBJECT(dev), E2, E3, E4, E5); +) + ...+> +} --=20 2.21.1