From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4EA531DA5F for ; Wed, 9 Oct 2024 06:35:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.12 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728455711; cv=none; b=GfD8Nhob2+qzIrtNo6KIoTUmLNRgI89Zm5O/xGwzIuP+oVA2LSu9boXTOfc5Szm+zPS9IFubj3x6aJkrPFVW5w6iGvYx2uuMh02cJhUntwhW34mUjnDKFKOGAGHRF1WSc2bWeImnwrs74Ge7vVCluuqruaXZYSJWUFKVu2roCuI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728455711; c=relaxed/simple; bh=oQRmH+fcm9FTEP+iuu4nyOE/JFb61Get/pyjqeqHQAM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Fxyd/BjqI0xry/UAHk7lnn0WaU9PM2tZIyfcNxBbKwhoCFLtxkmP30U5lsZgZOjYCnCes345scHFBm8hzVQTH+jQFAWi1s9EO7KCwNgJqKPQZiil3N8AEqbeWbrwVKI64WZS8/g60D15IkDgF4zhis9Dtx243mkNvWVENQ9u3TI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Ckztxtdx; arc=none smtp.client-ip=198.175.65.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Ckztxtdx" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1728455711; x=1759991711; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=oQRmH+fcm9FTEP+iuu4nyOE/JFb61Get/pyjqeqHQAM=; b=CkztxtdxadHra1u8Oxo5VQUjf3kgK5/QDncuLP4+XQ273ixqPBBmaEWI yn5TVUHQc4umms9CQhyr9jNtfsuMOfR/HBirMK4BQqVk5Ieqr0r2j46kn UOnXzb6hesp9zBSCIiRTEvbVhaVcdDU8GQkBne5J4dcLDzqYqTQE+m5ky c896UhQoVpDql01XYhTQ2zdc/OgGqYfSoEMo5D9s9j4xHABUXr7hr2QDd 3QO8dS9zHKgRyLwFTK9pX4OkoiYtNWWleJWPRGgWx636aWJcD/nvRqSum mTbSNJiDQ7TDpaRFXsUJUvgUEI843gpB8QZOYNKqL+aDAh56+p8aaGofr A==; X-CSE-ConnectionGUID: QSZAWQ8/ROKJF2il/Q4GIA== X-CSE-MsgGUID: 4QlZk4hwQ4ufjIvPrlM7WQ== X-IronPort-AV: E=McAfee;i="6700,10204,11219"; a="39127638" X-IronPort-AV: E=Sophos;i="6.11,189,1725346800"; d="scan'208";a="39127638" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Oct 2024 23:35:10 -0700 X-CSE-ConnectionGUID: J/jUx0I6T+GzB++A/NzQIA== X-CSE-MsgGUID: 8hMyCA4ZRMmAb30/h4sbSQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,189,1725346800"; d="scan'208";a="76152091" Received: from liuzhao-optiplex-7080.sh.intel.com (HELO localhost) ([10.239.160.36]) by fmviesa009.fm.intel.com with ESMTP; 08 Oct 2024 23:35:04 -0700 Date: Wed, 9 Oct 2024 14:51:16 +0800 From: Zhao Liu To: Jonathan Cameron Cc: Daniel P =?utf-8?B?LiBCZXJyYW5n77+9?= , Igor Mammedov , Eduardo Habkost , Marcel Apfelbaum , Philippe =?utf-8?B?TWF0aGlldS1EYXVk77+9?= , Yanan Wang , "Michael S . Tsirkin" , Paolo Bonzini , Richard Henderson , Sergio Lopez , Jason Wang , Stefano Stabellini , Anthony PERARD , Paul Durrant , "Edgar E . Iglesias" , Eric Blake , Markus Armbruster , Alex =?utf-8?B?QmVubu+/vWU=?= , Peter Maydell , qemu-devel@nongnu.org, kvm@vger.kernel.org, qemu-arm@nongnu.org, Zhenyu Wang , Dapeng Mi , Yongwei Ma , Zhao Liu Subject: Re: [RFC v2 00/12] Introduce Hybrid CPU Topology via Custom Topology Tree Message-ID: References: <20240919061128.769139-1-zhao1.liu@intel.com> <20241008113038.00007ee4@Huawei.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=gb2312 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20241008113038.00007ee4@Huawei.com> Hi Jonathan, On Tue, Oct 08, 2024 at 11:30:38AM +0100, Jonathan Cameron wrote: > Date: Tue, 8 Oct 2024 11:30:38 +0100 > From: Jonathan Cameron > Subject: Re: [RFC v2 00/12] Introduce Hybrid CPU Topology via Custom > Topology Tree > X-Mailer: Claws Mail 4.1.0 (GTK 3.24.33; x86_64-w64-mingw32) > > On Thu, 19 Sep 2024 14:11:16 +0800 > Zhao Liu wrote: > > > > -smp maxsockets=1,maxdies=1,maxmodules=2,maxcores=2,maxthreads=2 > > -machine pc,custom-topo=on \ > > -device cpu-socket,id=sock0 \ > > -device cpu-die,id=die0,bus=sock0 \ > > -device cpu-module,id=mod0,bus=die0 \ > > -device cpu-module,id=mod1,bus=die0 \ > > -device x86-intel-core,id=core0,bus=mod0 \ > > -device x86-intel-atom,id=core1,bus=mod1 \ > > -device x86-intel-atom,id=core2,bus=mod1 \ > > -device host-x86_64-cpu,id=cpu0,socket-id=0,die-id=0,module-id=0,core-id=0,thread-id=0 \ > > -device host-x86_64-cpu,id=cpu1,socket-id=0,die-id=0,module-id=0,core-id=0,thread-id=1 \ > > -device host-x86_64-cpu,id=cpu2,socket-id=0,die-id=0,module-id=1,core-id=0,thread-id=0 \ > > -device host-x86_64-cpu,id=cpu3,socket-id=0,die-id=0,module-id=1,core-id=1,thread-id=0 > > I quite like this as a way of doing the configuration but that needs > some review from others. > > Peter, Alex, do you think this scheme is flexible enough to ultimately > allow us to support this for arm? BTW, this series requires a preliminary RFC [*] to first convert all the topology layers into devices. If you¡¯re interested as well, welcome your comments. :) [*]: [RFC v2 00/15] qom-topo: Abstract CPU Topology Level to Topology Device https://lore.kernel.org/qemu-devel/20240919015533.766754-1-zhao1.liu@intel.com/ Regards, Zhao