From nobody Wed Nov 27 04:37:48 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass header.i=@intel.com; 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=pass(p=none dis=none) header.from=linux.intel.com ARC-Seal: i=1; a=rsa-sha256; t=1701354981; cv=none; d=zohomail.com; s=zohoarc; b=RGczKB1W7VuXdUVtYi9C40IUqx4Gj1pEFgv0V9MiC6mWLzaaI2xhXZUvfFnnOPayALJE6vQJTblLLQnI+WYodCEPNTGEQOsJZuvequ3DdOCSTBXpVnposPImsgpQCO6Z9ZNqv1aqInJb4fdRhqG+SMeBczWlfrm9qqoim5fMmaQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1701354981; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=U4LNWwiOs6ki2FoDEsFF1f0dT3yNScsGQRkBIApn0/k=; b=O7JnrAmNoinqK8cMutJkO8ppYgZAoxZZPi3KmKwq+PF1GDSwliwYb/uHKi9ChFmGnQyxUGvRbUM6ni7YDIi70iCwiu+VygE6WYl9JLgm1zBcNpyodKUSWbSCneTmWeIOyUuGhzfToUXRQCIcSiXbE2vqhByZd2Pfa3iCV31zrqk= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=@intel.com; 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=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1701354981158650.311213766761; Thu, 30 Nov 2023 06:36:21 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1r8i6N-0004O2-S6; Thu, 30 Nov 2023 09:33:16 -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 1r8i6J-00043R-Ar; Thu, 30 Nov 2023 09:33:11 -0500 Received: from mgamail.intel.com ([192.55.52.43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1r8i6H-0001I2-HS; Thu, 30 Nov 2023 09:33:10 -0500 Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Nov 2023 06:33:04 -0800 Received: from liuzhao-optiplex-7080.sh.intel.com ([10.239.160.36]) by orsmga005.jf.intel.com with ESMTP; 30 Nov 2023 06:32:54 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1701354789; x=1732890789; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=/4XB1+0XSfZXJW6ggYvVG8+UQ24RT1LIudOfD5YSaJw=; b=HasYQyEUkyVg21haLFRHGDdWbARruYDFjMYrLUFCSDFA7i3axlx1zrdK fu3NPHtZCxTw3A5pJhlnvwjnGuzUMT2IdFV9kHEIWh+4RLOgmKpyxz+fV HUgT1/mGJ+MJLDM7Yso4qoj+MM9pgumfhXFdSzWkRGgKdLBGM3yb/7WA7 oM9DtHv+mt7dkM+lfQR1r5vcVeKEeZ4HtaEi/imu6Jp++uqNu4MPq4gxy RERmOGl/6JZCsCOg8h2ZqCXB7GP/sANyyIEGgHCrlThnXXmI2Jax3rhMa EFkvZfN5xrlNpmx4gfc2xTtjWaGooJ9RyU4Kks03V+K30LCwoJigisB/Q w==; X-IronPort-AV: E=McAfee;i="6600,9927,10910"; a="479531860" X-IronPort-AV: E=Sophos;i="6.04,239,1695711600"; d="scan'208";a="479531860" X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10910"; a="942729971" X-IronPort-AV: E=Sophos;i="6.04,239,1695711600"; d="scan'208";a="942729971" From: Zhao Liu To: Paolo Bonzini , =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Eduardo Habkost , Marcel Apfelbaum , Yanan Wang , Richard Henderson , "Michael S . Tsirkin" , Jason Wang , Nicholas Piggin , Daniel Henrique Barboza , Igor Mammedov , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Barrat?= , David Gibson , Harsh Prateek Bora , Stefano Stabellini , Anthony Perard , Paul Durrant , Gerd Hoffmann , Peter Maydell , Alistair Francis , "Edgar E . Iglesias" , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= , Bin Meng , Palmer Dabbelt , Weiwei Li , Liu Zhiwei , qemu-devel@nongnu.org, kvm@vger.kernel.org, qemu-ppc@nongnu.org, xen-devel@lists.xenproject.org, qemu-arm@nongnu.org, qemu-riscv@nongnu.org, qemu-s390x@nongnu.org Cc: Nina Schoetterl-Glausch , Thomas Huth , Zhiyuan Lv , Zhenyu Wang , Yongwei Ma , Zhao Liu Subject: [RFC 16/41] PPC/ppc-core: Limit plugged-threads and nr-threads to be equal Date: Thu, 30 Nov 2023 22:41:38 +0800 Message-Id: <20231130144203.2307629-17-zhao1.liu@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231130144203.2307629-1-zhao1.liu@linux.intel.com> References: <20231130144203.2307629-1-zhao1.liu@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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; Received-SPF: none client-ip=192.55.52.43; envelope-from=zhao1.liu@linux.intel.com; helo=mgamail.intel.com X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1701354983207000013 Content-Type: text/plain; charset="utf-8" From: Zhao Liu PPC supports CPU hotplug at core granularity, thus ppc-core only accepts all CPUs in a core are plugged. Check if plugged_threads and nr_threads are equal when ppc-core realizes. Signed-off-by: Zhao Liu --- hw/ppc/ppc_core.c | 18 ++++++++++++++++++ include/hw/ppc/ppc_core.h | 1 + 2 files changed, 19 insertions(+) diff --git a/hw/ppc/ppc_core.c b/hw/ppc/ppc_core.c index 4433b54af506..3857f3150052 100644 --- a/hw/ppc/ppc_core.c +++ b/hw/ppc/ppc_core.c @@ -53,20 +53,38 @@ static void powerpc_core_prop_set_core_id(Object *obj, = Visitor *v, core->core_id =3D value; } =20 +static void powerpc_core_realize(DeviceState *dev, Error **errp) +{ + CPUCore *core =3D CPU_CORE(dev); + PowerPCCoreClass *ppc_class =3D POWERPC_CORE_GET_CLASS(dev); + + if (core->plugged_threads !=3D -1 && + core->nr_threads !=3D core->plugged_threads) { + error_setg(errp, "nr_threads and plugged-threads must be equal"); + return; + } + + ppc_class->parent_realize(dev, errp); +} + static void powerpc_core_class_init(ObjectClass *oc, void *data) { DeviceClass *dc =3D DEVICE_CLASS(oc); + PowerPCCoreClass *ppc_class =3D POWERPC_CORE_CLASS(oc); =20 object_class_property_add(oc, "core-id", "int", powerpc_core_prop_get_core_id, powerpc_core_prop_set_core_id, NULL, NULL); + device_class_set_parent_realize(dc, powerpc_core_realize, + &ppc_class->parent_realize); } =20 static const TypeInfo powerpc_core_type_info =3D { .name =3D TYPE_POWERPC_CORE, .parent =3D TYPE_CPU_CORE, .abstract =3D true, + .class_size =3D sizeof(PowerPCCoreClass), .class_init =3D powerpc_core_class_init, .instance_size =3D sizeof(PowerPCCore), }; diff --git a/include/hw/ppc/ppc_core.h b/include/hw/ppc/ppc_core.h index bcc83e426e3f..1207d220872a 100644 --- a/include/hw/ppc/ppc_core.h +++ b/include/hw/ppc/ppc_core.h @@ -34,6 +34,7 @@ struct PowerPCCoreClass { CPUCoreClass parent_class; =20 /*< public >*/ + DeviceRealize parent_realize; }; =20 struct PowerPCCore { --=20 2.34.1