From nobody Sun Nov 24 09:10:30 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=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1725799594; cv=none; d=zohomail.com; s=zohoarc; b=FT/e8KIfimGIUE1syXVgpjDpM34yihfI2DLn/MssamlrltdIOg3e2Do1RliYaOhpxWbz7wWsyO1IA8nG0X24zkSR65D/B2IDmDz8wEros2tiAx4UrJxgUKEdlcUihaWSJaKKqvKT0dAViSxadsEXPGTAwh2lPd+D6b980BNSpcw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1725799594; 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=18RPvmNbwVAJ6DZU8THD0edaJscZ5kKTl3d1m3AKJyg=; b=G+Kxo3jtH12V+pnMsIYglz6yESLZxmFUAlMyBmvcz99jdoC/WptF7VASpLqCt1lf94w139pvZvlpkhCcA7UDWY8z5z83+LL7M/q7+C5PO8tWc+siKSSG6loVUgLrXygYmTKegbVFBITAVesMFP7RAfcR6n6zeeSv5cwrrQB9pRc= 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 1725799594819678.6034827667402; Sun, 8 Sep 2024 05:46:34 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1snHH0-0000o6-CF; Sun, 08 Sep 2024 08:44:10 -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 1snHGy-0000e8-7o; Sun, 08 Sep 2024 08:44:08 -0400 Received: from mgamail.intel.com ([198.175.65.15]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1snHGw-0006B4-FS; Sun, 08 Sep 2024 08:44:07 -0400 Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Sep 2024 05:44:05 -0700 Received: from liuzhao-optiplex-7080.sh.intel.com ([10.239.160.36]) by fmviesa001.fm.intel.com with ESMTP; 08 Sep 2024 05:43:59 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1725799447; x=1757335447; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=hMYhnFWxXSsAfwWdeOKrX4i9zZGtjRAXTsthyts1mB0=; b=HZ9OrpqfIVg8FAOTCtrvh3U7a8M0rVwmF/t0Sk/4mOJqxIBNRJDcraUW ZjPVfe2QqLqhRbHA+vBqcRUZGeqtvsjjvhFlP3ZwlHCRM/5FvjxMfli8o bQypAifufdcaKMgwpIA5HtyQLw8+Z8skVbZEnhzswm7//zc5+FA59fOIq urn4jJN1MNuc381KujsXxIAxDobklbTRhNLOt5XACr6KMXDtFzWFYKoT5 7WH3zJi2SPh5DHDexVpySoOq9w+6zOInWJ4/rhf9X2PX4Kf/596nBsx8A f6MZZspg3QDqnZRxC8YJwFQZvXsOuGqLHo+lWlPbYusmyLuDEAXDYZ11u A==; X-CSE-ConnectionGUID: Htkq4URLSuOS9utGV2mbJw== X-CSE-MsgGUID: UXvKmQ1JRbOtnAP4RYYH0A== X-IronPort-AV: E=McAfee;i="6700,10204,11189"; a="28238281" X-IronPort-AV: E=Sophos;i="6.10,212,1719903600"; d="scan'208";a="28238281" X-CSE-ConnectionGUID: EjDF+9ZNR2CHqN/InLQCtw== X-CSE-MsgGUID: RyU6ZH3iQmq7EhvumKf80A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,212,1719903600"; d="scan'208";a="97196680" From: Zhao Liu To: =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= , Igor Mammedov , Eduardo Habkost , Marcel Apfelbaum , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Yanan Wang , "Michael S . Tsirkin" , Paolo Bonzini , Richard Henderson , Eric Blake , Markus Armbruster , Marcelo Tosatti , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Peter Maydell , Jonathan Cameron , Sia Jee Heng , Alireza Sanaee Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, qemu-riscv@nongnu.org, qemu-arm@nongnu.org, Zhenyu Wang , Dapeng Mi , Yongwei Ma , Zhao Liu Subject: [PATCH v2 7/7] i386/pc: Support cache topology in -machine for PC machine Date: Sun, 8 Sep 2024 20:59:20 +0800 Message-Id: <20240908125920.1160236-8-zhao1.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240908125920.1160236-1-zhao1.liu@intel.com> References: <20240908125920.1160236-1-zhao1.liu@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: pass client-ip=198.175.65.15; envelope-from=zhao1.liu@intel.com; helo=mgamail.intel.com X-Spam_score_int: -44 X-Spam_score: -4.5 X-Spam_bar: ---- X-Spam_report: (-4.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.145, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1725799596424116600 Content-Type: text/plain; charset="utf-8" Allow user to configure l1d, l1i, l2 and l3 cache topologies for PC machine. Additionally, add the document of "-machine smp-cache" in qemu-options.hx. Signed-off-by: Zhao Liu Tested-by: Yongwei Ma --- Changes since Patch v1: * Merged document into this patch. (Markus) Changes since RFC v2: * Used cache_supported array. --- hw/i386/pc.c | 4 ++++ qemu-options.hx | 28 +++++++++++++++++++++++++++- 2 files changed, 31 insertions(+), 1 deletion(-) diff --git a/hw/i386/pc.c b/hw/i386/pc.c index ba0ff511836c..d562fd25aad2 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1788,6 +1788,10 @@ static void pc_machine_class_init(ObjectClass *oc, v= oid *data) mc->nvdimm_supported =3D true; mc->smp_props.dies_supported =3D true; mc->smp_props.modules_supported =3D true; + mc->smp_props.cache_supported[CACHE_LEVEL_AND_TYPE_L1D] =3D true; + mc->smp_props.cache_supported[CACHE_LEVEL_AND_TYPE_L1I] =3D true; + mc->smp_props.cache_supported[CACHE_LEVEL_AND_TYPE_L2] =3D true; + mc->smp_props.cache_supported[CACHE_LEVEL_AND_TYPE_L3] =3D true; mc->default_ram_id =3D "pc.ram"; pcmc->default_smbios_ep_type =3D SMBIOS_ENTRY_POINT_TYPE_AUTO; =20 diff --git a/qemu-options.hx b/qemu-options.hx index d94e2cbbaeb1..3936ff3e77f9 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -39,7 +39,8 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \ " memory-encryption=3D@var{} memory encryption object t= o use (default=3Dnone)\n" " hmat=3Don|off controls ACPI HMAT support (default=3Do= ff)\n" " memory-backend=3D'backend-id' specifies explicitly pr= ovided backend for main RAM (default=3Dnone)\n" - " cxl-fmw.0.targets.0=3Dfirsttarget,cxl-fmw.0.targets.1= =3Dsecondtarget,cxl-fmw.0.size=3Dsize[,cxl-fmw.0.interleave-granularity=3Dg= ranularity]\n", + " cxl-fmw.0.targets.0=3Dfirsttarget,cxl-fmw.0.targets.1= =3Dsecondtarget,cxl-fmw.0.size=3Dsize[,cxl-fmw.0.interleave-granularity=3Dg= ranularity]\n" + " smp-cache.0.cache=3Dcachename,smp-cache.0.topology=3D= topologylevel\n", QEMU_ARCH_ALL) SRST ``-machine [type=3D]name[,prop=3Dvalue[,...]]`` @@ -159,6 +160,31 @@ SRST :: =20 -machine cxl-fmw.0.targets.0=3Dcxl.0,cxl-fmw.0.targets.1=3Dcxl= .1,cxl-fmw.0.size=3D128G,cxl-fmw.0.interleave-granularity=3D512 + + ``smp-cache.0.cache=3Dcachename,smp-cache.0.topology=3Dtopologylevel`` + Define cache properties (now only the cache topology level) for SMP + system. + + ``cache=3Dcachename`` specifies the cache that the properties will= be + applied on. This field is the combination of cache level and cache + type. Currently it supports ``l1d`` (L1 data cache), ``l1i`` (L1 + instruction cache), ``l2`` (L2 unified cache) and ``l3`` (L3 unifi= ed + cache). + + ``topology=3Dtopologylevel`` sets the cache topology level. It acc= epts + CPU topology levels including ``thread``, ``core``, ``module``, + ``cluster``, ``die``, ``socket``, ``book``, ``drawer`` and a speci= al + value ``default``. If ``default`` is set, then the cache topology = will + follow the architecture's default cache topology model. If other C= PU + topology level is set, the cache will be shared at corresponding C= PU + topology level. For example, ``topology=3Dcore`` makes the cache s= hared + in a core. + + Example: + + :: + + -machine smp-cache.0.cache=3Dl1d,smp-cache.0.topology=3Dcore,s= mp-cache.1.cache=3Dl1i,smp-cache.1.topology=3Dcore ERST =20 DEF("M", HAS_ARG, QEMU_OPTION_M, --=20 2.34.1