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 29F4BC54E58 for ; Mon, 11 Mar 2024 08:06:24 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rjafQ-0006EW-JU; Mon, 11 Mar 2024 04:05:52 -0400 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 1rjafN-0006EB-1s for qemu-devel@nongnu.org; Mon, 11 Mar 2024 04:05:49 -0400 Received: from mgamail.intel.com ([198.175.65.21]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rjafL-0003F1-0Q for qemu-devel@nongnu.org; Mon, 11 Mar 2024 04:05:48 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1710144347; x=1741680347; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=F/IuLV+s9yUiWzJMY+p2Y7SPDRn/5q14hfmZENra7ig=; b=UbZSxrISLJZaOEY6MNahbJNiQzYPtQ6ApHoyKtse87JzB1c6D7y+Dhdp RTwMpBoJsMWKXNoHpuv2u5RzUjsf0qRoxHzZYKOPUsnZlX5T1rgztR7Vy FTx+sCB/IJcgyhQtXcNWqu58+HuZy9fQ7ar5n8Wk0GvYymez5zMW8j1rb BNasBISByFmzcW4BzHv5RyL9JnnAuO9Agm3mv4nowxWimN5MjwuFuGK1d hujASL1AjEqz5IkZe8DIpeGIL+6XJeQc07/T1CPrOuAzNt4Z/W09jxtUI /wcPYanhlpy/T3KME1Tc2ZV7vVCv3FSQduKXxRS6P+Sa+DMDmZsld8kln A==; X-IronPort-AV: E=McAfee;i="6600,9927,11009"; a="4716423" X-IronPort-AV: E=Sophos;i="6.07,116,1708416000"; d="scan'208";a="4716423" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2024 01:05:44 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,116,1708416000"; d="scan'208";a="15687880" Received: from liuzhao-optiplex-7080.sh.intel.com (HELO localhost) ([10.239.160.36]) by fmviesa004.fm.intel.com with ESMTP; 11 Mar 2024 01:05:40 -0700 Date: Mon, 11 Mar 2024 16:19:28 +0800 From: Zhao Liu To: Xiaoyao Li Cc: Eduardo Habkost , Marcel Apfelbaum , Philippe =?iso-8859-1?Q?Mathieu-Daud=E9?= , Yanan Wang , "Michael S . Tsirkin" , Richard Henderson , Paolo Bonzini , Eric Blake , Markus Armbruster , Marcelo Tosatti , Daniel P =?iso-8859-1?Q?=2E_Berrang=E9?= , qemu-devel@nongnu.org, kvm@vger.kernel.org, Zhenyu Wang , Zhuocheng Ding , Babu Moger , Yongwei Ma , Zhao Liu Subject: Re: [PATCH v9 09/21] i386/cpu: Introduce bitmap to cache available CPU topology levels Message-ID: References: <20240227103231.1556302-1-zhao1.liu@linux.intel.com> <20240227103231.1556302-10-zhao1.liu@linux.intel.com> <770fe9ab-c9cc-4062-b841-180036a3d050@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <770fe9ab-c9cc-4062-b841-180036a3d050@intel.com> Received-SPF: none client-ip=198.175.65.21; envelope-from=zhao1.liu@linux.intel.com; helo=mgamail.intel.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.945, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Mon, Mar 11, 2024 at 02:28:17PM +0800, Xiaoyao Li wrote: > Date: Mon, 11 Mar 2024 14:28:17 +0800 > From: Xiaoyao Li > Subject: Re: [PATCH v9 09/21] i386/cpu: Introduce bitmap to cache available > CPU topology levels > > On 2/27/2024 6:32 PM, Zhao Liu wrote: > > From: Zhao Liu > > > > Currently, QEMU checks the specify number of topology domains to detect > > if there's extended topology levels (e.g., checking nr_dies). > > > > With this bitmap, the extended CPU topology (the levels other than SMT, > > core and package) could be easier to detect without touching the > > topology details. > > > > This is also in preparation for the follow-up to decouple CPUID[0x1F] > > subleaf with specific topology level. > > > > Tested-by: Yongwei Ma > > Signed-off-by: Zhao Liu > > > Reviewed-by: Xiaoyao Li Thanks for your review! Regrads, Zhao