From patchwork Mon Feb 13 09:36:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhao Liu X-Patchwork-Id: 1741495 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=SD4CNPzq; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4PFfLg1qK1z23h0 for ; Mon, 13 Feb 2023 20:34:35 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pRV9U-0005av-97; Mon, 13 Feb 2023 04:29:36 -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 1pRV9R-0005Za-BQ for qemu-devel@nongnu.org; Mon, 13 Feb 2023 04:29:33 -0500 Received: from mga02.intel.com ([134.134.136.20]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pRV9M-0006O1-LT for qemu-devel@nongnu.org; Mon, 13 Feb 2023 04:29:33 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1676280568; x=1707816568; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=8TDHGfxGbBvj9UMegD4/gsrU0bcKim2fY20CZMK0XdE=; b=SD4CNPzqeErN6bqAJF5sVgSCr+b6fAaT1ufFXL5SP87RpjuHLM7RxBil JL+c3lYoae1o8O8WkW9HbzOhQxBHa6idoTxPf6gvDoW2Ft46n5SggYOb5 PllLDKux9ZbJgj5OKvKy4DraAIAbk/2RD7tC+TaXY0isvZW9beGvyU1VQ mlCtAdur9SWVp6wRU+WgS4TG8P55CnlfJIwwNdYtRIQFyn5LTemvkq4XE Ba7FAERz6hxU//7etR6k6zgHLx5O6H1jUC9upJa4k93RTU7kdJLLTfTj5 W2dPiWmlmezKaPzNTFdyebu7rMUCkRYHoQNRELZENiZ72vt+9D2CaMyom w==; X-IronPort-AV: E=McAfee;i="6500,9779,10619"; a="318875689" X-IronPort-AV: E=Sophos;i="5.97,293,1669104000"; d="scan'208";a="318875689" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Feb 2023 01:29:27 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10619"; a="792660029" X-IronPort-AV: E=Sophos;i="5.97,293,1669104000"; d="scan'208";a="792660029" Received: from liuzhao-optiplex-7080.sh.intel.com ([10.239.160.112]) by orsmga004.jf.intel.com with ESMTP; 13 Feb 2023 01:29:22 -0800 From: Zhao Liu To: Eduardo Habkost , Marcel Apfelbaum , =?utf-8?q?Philippe_Mathieu-D?= =?utf-8?q?aud=C3=A9?= , Yanan Wang , "Michael S . Tsirkin" , Richard Henderson , Paolo Bonzini , Eric Blake , Markus Armbruster Cc: qemu-devel@nongnu.org, Zhenyu Wang , Dapeng Mi , Zhuocheng Ding , Robert Hoo , Xiaoyao Li , Like Xu , Zhao Liu Subject: [PATCH RESEND 08/18] i386: Support module_id in X86CPUTopoIDs Date: Mon, 13 Feb 2023 17:36:15 +0800 Message-Id: <20230213093625.158170-9-zhao1.liu@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230213093625.158170-1-zhao1.liu@linux.intel.com> References: <20230213093625.158170-1-zhao1.liu@linux.intel.com> MIME-Version: 1.0 Received-SPF: none client-ip=134.134.136.20; envelope-from=zhao1.liu@linux.intel.com; helo=mga02.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, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_NONE=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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Zhuocheng Ding Add module_id member in X86CPUTopoIDs. module_id can be parsed from APIC ID, so before updating the parsing rule of APIC ID, temporarily set the module_id generated in this way to 0. module_id can be also generated from cpu topology, and before i386 supports "clusters" in smp, the default "clusters per die" is only 1, thus the module_id generated in this way is 0, so that it will not conflict with the module_id generated by APIC ID. Signed-off-by: Zhuocheng Ding Co-developed-by: Zhao Liu Signed-off-by: Zhao Liu --- hw/i386/x86.c | 17 +++++++++++++++++ include/hw/i386/topology.h | 24 ++++++++++++++++++++---- 2 files changed, 37 insertions(+), 4 deletions(-) diff --git a/hw/i386/x86.c b/hw/i386/x86.c index 1c069ff56ae7..b90c6584930a 100644 --- a/hw/i386/x86.c +++ b/hw/i386/x86.c @@ -362,6 +362,14 @@ void x86_cpu_pre_plug(HotplugHandler *hotplug_dev, topo_ids.die_id = cpu->die_id; topo_ids.core_id = cpu->core_id; topo_ids.smt_id = cpu->thread_id; + + /* + * TODO: This is the temporary initialization for topo_ids.module_id to + * avoid "maybe-uninitialized" compilation errors. Will remove when + * X86CPU supports cluster_id. + */ + topo_ids.module_id = 0; + cpu->apic_id = x86_apicid_from_topo_ids(&topo_info, &topo_ids); } @@ -370,6 +378,11 @@ void x86_cpu_pre_plug(HotplugHandler *hotplug_dev, MachineState *ms = MACHINE(x86ms); x86_topo_ids_from_apicid(cpu->apic_id, &topo_info, &topo_ids); + + /* + * TODO: Before APIC ID supports module level parsing, there's no need + * to expose module_id info. + */ error_setg(errp, "Invalid CPU [socket: %u, die: %u, core: %u, thread: %u] with" " APIC ID %" PRIu32 ", valid index range 0:%d", @@ -495,6 +508,10 @@ const CPUArchIdList *x86_possible_cpu_arch_ids(MachineState *ms) ms->possible_cpus->cpus[i].props.has_die_id = true; ms->possible_cpus->cpus[i].props.die_id = topo_ids.die_id; } + if (ms->smp.clusters > 1) { + ms->possible_cpus->cpus[i].props.has_cluster_id = true; + ms->possible_cpus->cpus[i].props.cluster_id = topo_ids.module_id; + } ms->possible_cpus->cpus[i].props.has_core_id = true; ms->possible_cpus->cpus[i].props.core_id = topo_ids.core_id; ms->possible_cpus->cpus[i].props.has_thread_id = true; diff --git a/include/hw/i386/topology.h b/include/hw/i386/topology.h index bbb00dc4aad8..b0174c18b7bd 100644 --- a/include/hw/i386/topology.h +++ b/include/hw/i386/topology.h @@ -48,6 +48,7 @@ typedef uint32_t apic_id_t; typedef struct X86CPUTopoIDs { unsigned pkg_id; unsigned die_id; + unsigned module_id; unsigned core_id; unsigned smt_id; } X86CPUTopoIDs; @@ -134,12 +135,21 @@ static inline void x86_topo_ids_from_idx(X86CPUTopoInfo *topo_info, X86CPUTopoIDs *topo_ids) { unsigned nr_dies = topo_info->dies_per_pkg; - unsigned nr_cores = topo_info->cores_per_module * - topo_info->modules_per_die; + unsigned nr_modules = topo_info->modules_per_die; + unsigned nr_cores = topo_info->cores_per_module; unsigned nr_threads = topo_info->threads_per_core; - topo_ids->pkg_id = cpu_index / (nr_dies * nr_cores * nr_threads); - topo_ids->die_id = cpu_index / (nr_cores * nr_threads) % nr_dies; + /* + * Currently smp for i386 doesn't support "clusters", modules_per_die is + * only 1. Therefore, the module_id generated from the module topology will + * not conflict with the module_id generated according to the apicid. + */ + topo_ids->pkg_id = cpu_index / (nr_dies * nr_modules * + nr_cores * nr_threads); + topo_ids->die_id = cpu_index / (nr_modules * nr_cores * + nr_threads) % nr_dies; + topo_ids->module_id = cpu_index / (nr_cores * nr_threads) % + nr_modules; topo_ids->core_id = cpu_index / nr_threads % nr_cores; topo_ids->smt_id = cpu_index % nr_threads; } @@ -156,6 +166,12 @@ static inline void x86_topo_ids_from_apicid(apic_id_t apicid, topo_ids->core_id = (apicid >> apicid_core_offset(topo_info)) & ~(0xFFFFFFFFUL << apicid_core_width(topo_info)); + /* + * TODO: This is the temporary initialization for topo_ids.module_id to + * avoid "maybe-uninitialized" compilation errors. Will remove when APIC + * ID supports module level parsing. + */ + topo_ids->module_id = 0; topo_ids->die_id = (apicid >> apicid_die_offset(topo_info)) & ~(0xFFFFFFFFUL << apicid_die_width(topo_info));