From patchwork Wed Mar 21 15:58:41 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Moger, Babu" X-Patchwork-Id: 10299747 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 67C68602B3 for ; Wed, 21 Mar 2018 15:59:43 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5585928F64 for ; Wed, 21 Mar 2018 15:59:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 49D19296FE; Wed, 21 Mar 2018 15:59:43 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 8511F28F64 for ; Wed, 21 Mar 2018 15:59:42 +0000 (UTC) Received: from localhost ([::1]:55943 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eyg9N-0003QI-Rz for patchwork-qemu-devel@patchwork.kernel.org; Wed, 21 Mar 2018 11:59:41 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59307) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eyg8Z-0002Sl-G5 for qemu-devel@nongnu.org; Wed, 21 Mar 2018 11:58:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eyg8V-0003vj-Et for qemu-devel@nongnu.org; Wed, 21 Mar 2018 11:58:51 -0400 Received: from mail-cys01nam02on0064.outbound.protection.outlook.com ([104.47.37.64]:32846 helo=NAM02-CY1-obe.outbound.protection.outlook.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eyg8U-0003ue-Up for qemu-devel@nongnu.org; Wed, 21 Mar 2018 11:58:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amdcloud.onmicrosoft.com; s=selector1-amd-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=g0LkGPOFDnbKjy1lVOgaP/j4BPt9KOGKvIAEq/zGBlI=; b=j83QDV4Akn3bXFMvqjZD+iLUCG9s6y6GxfRC6my6pGRZklo5mUyl0tzGWpFffg03N3Dn6plAAOiRCN4v79Ibk11zES68fDVzK8g5y6bPNDRkuotQroyglhTaw+t3NY8/m63QANMuUXp4E0TkXcf1FMi3mjwHhnmp0pOmuFpwlZg= Received: from CY4PR12MB1768.namprd12.prod.outlook.com (10.175.63.10) by CY4PR12MB1832.namprd12.prod.outlook.com (10.175.81.150) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.588.14; Wed, 21 Mar 2018 15:58:43 +0000 Received: from CY4PR12MB1768.namprd12.prod.outlook.com ([fe80::4873:8395:24d2:8f6f]) by CY4PR12MB1768.namprd12.prod.outlook.com ([fe80::4873:8395:24d2:8f6f%13]) with mapi id 15.20.0588.017; Wed, 21 Mar 2018 15:58:42 +0000 From: "Moger, Babu" To: Eduardo Habkost Thread-Topic: [Qemu-devel] [PATCH v4 2/5] target/i386: Populate AMD Processor Cache Information Thread-Index: AQHTukVEzswBDyNvAUGstQjCrQTsIaPTLLAAgAY8/jCAAArBgIABcFmg Date: Wed, 21 Mar 2018 15:58:41 +0000 Message-ID: References: <1520888449-4352-1-git-send-email-babu.moger@amd.com> <1520888449-4352-3-git-send-email-babu.moger@amd.com> <20180316180006.GH28578@localhost.localdomain> <20180320175427.GU3417@localhost.localdomain> In-Reply-To: <20180320175427.GU3417@localhost.localdomain> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Babu.Moger@amd.com; x-originating-ip: [165.204.77.1] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; CY4PR12MB1832; 7:swIsoo6Hb23zWpagynD3l35uIjB5cFxohXupDGfJ3sbw1QnTmYIW+Om8kC4XSylwI9/OSnDr+iS5sxQd7QPA2lvbiVCSKNPI/7GoBuN9nYkXKCqYNR/LWBnnh/0KKk+OYWrYL6OQ7sCLBdIu5WJH20P4x0Cc/QtE467eRx5/cpjL+AErz2fCMP2kjzmSelhRKYSHAxoveyfO8D0FnUSak9P9Yevy2wIwglqzzMMksHiJi22p2AtOkOucRi65L6JR; 20:uwtBOHKEB2CXHVv9f6wS6+9xlISapSmVGigHUpLGIFHJG1SV4DyDXYrQxQRQL8/vN+FttZh5qXg3wzsq6vL5ohLsX06Q8DjburhiYqeT0sXbWc2ig/4V/JjByMk9grL6dWPHxoF6xVlurtlBPnBxX9NdOaq7oBHQjhz2CNKpdQeCIuexsyPeKF4ub+gEwKN2TaTaAOfP1j3BkYB0P4C6vVSxYn43luJ84hmzGBKX1n4PjnFmtzWSH+9b4fAmEH/O x-ms-exchange-antispam-srfa-diagnostics: SOS;SOR; x-forefront-antispam-report: SFV:SKI; SCL:-1; SFV:NSPM; SFS:(10009020)(366004)(346002)(396003)(39380400002)(39860400002)(376002)(189003)(199004)(13464003)(54014002)(51914003)(5660300001)(966005)(72206003)(7736002)(53936002)(6306002)(3846002)(55016002)(9686003)(2906002)(6116002)(478600001)(2900100001)(97736004)(6436002)(305945005)(74316002)(59450400001)(7696005)(186003)(99286004)(45080400002)(76176011)(6246003)(86362001)(5250100002)(106356001)(33656002)(93886005)(102836004)(68736007)(26005)(2950100002)(14454004)(6916009)(66066001)(54906003)(4326008)(8676002)(81156014)(81166006)(53546011)(316002)(6506007)(3660700001)(8936002)(3280700002)(25786009)(105586002)(229853002); DIR:OUT; SFP:1101; SCL:1; SRVR:CY4PR12MB1832; H:CY4PR12MB1768.namprd12.prod.outlook.com; FPR:; SPF:None; PTR:InfoNoRecords; MX:1; A:1; LANG:en; x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 8d6b9cf4-0fcb-4724-680f-08d58f449e62 x-microsoft-antispam: UriScan:; BCL:0; PCL:0; RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7153060)(7193020); SRVR:CY4PR12MB1832; x-ms-traffictypediagnostic: CY4PR12MB1832: x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(9452136761055)(767451399110); x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(8211001083)(6040522)(2401047)(8121501046)(5005006)(3231221)(944501324)(52105095)(93006095)(93001095)(3002001)(10201501046)(6055026)(6041310)(20161123560045)(20161123558120)(20161123564045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123562045)(6072148)(201708071742011); SRVR:CY4PR12MB1832; BCL:0; PCL:0; RULEID:; SRVR:CY4PR12MB1832; x-forefront-prvs: 0618E4E7E1 received-spf: None (protection.outlook.com: amd.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: cUog0fJ6vNgrHXXHJrDbIp9/eulgzXNK5SZaRbfXThgo/C1qAJuEaNWTJverBskgB2HOyZDTgIzWuKTedjUdgl2PTofOtJkOVxnF5kc2xxmeDzIs+0IrMku1h9eZDsBN/s8XuG0aYXasNFFzjYjK/VwokaUI1AsLvIsDSrHbHdSJzG+eycaF+8sffOpW0CvY+KUXu/GTwbH7bomr238gLLltw3f3ZZQn+BIKmNobzCpR1GVzIYkm9LFXFHTVeRobWou9ztRkGo21yU81p9nawNvy85jjh+s25FpdULrfsob9Ya5XvzJLJzB7O8Kl6h0ReCmK45b3AvdyHypr+ogJyA== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 8d6b9cf4-0fcb-4724-680f-08d58f449e62 X-MS-Exchange-CrossTenant-originalarrivaltime: 21 Mar 2018 15:58:41.9184 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR12MB1832 X-detected-operating-system: by eggs.gnu.org: Windows 7 or 8 [fuzzy] X-Received-From: 104.47.37.64 Subject: Re: [Qemu-devel] [PATCH v4 2/5] target/i386: Populate AMD Processor Cache Information X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Lendacky, Thomas" , "Singh, Brijesh" , "kvm@vger.kernel.org" , "rkrcmar@redhat.com" , "kash@tripleback.net" , "mtosatti@redhat.com" , "Hook, Gary" , "qemu-devel@nongnu.org" , "pbonzini@redhat.com" , "rth@twiddle.net" Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Hi Eduardo, > -----Original Message----- > From: Eduardo Habkost > Sent: Tuesday, March 20, 2018 12:54 PM > To: Moger, Babu > Cc: pbonzini@redhat.com; rth@twiddle.net; rkrcmar@redhat.com; > Lendacky, Thomas ; Singh, Brijesh > ; kvm@vger.kernel.org; kash@tripleback.net; > mtosatti@redhat.com; Hook, Gary ; qemu- > devel@nongnu.org > Subject: Re: [Qemu-devel] [PATCH v4 2/5] target/i386: Populate AMD > Processor Cache Information > > On Tue, Mar 20, 2018 at 05:25:52PM +0000, Moger, Babu wrote: > > Hi Eduardo, Thanks for the comments. Please see the response inline. > > > > > -----Original Message----- > > > From: Eduardo Habkost > > > Sent: Friday, March 16, 2018 1:00 PM > > > To: Moger, Babu > > > Cc: pbonzini@redhat.com; rth@twiddle.net; rkrcmar@redhat.com; > > > Lendacky, Thomas ; Singh, Brijesh > > > ; kvm@vger.kernel.org; kash@tripleback.net; > > > mtosatti@redhat.com; Hook, Gary ; qemu- > > > devel@nongnu.org > > > Subject: Re: [Qemu-devel] [PATCH v4 2/5] target/i386: Populate AMD > > > Processor Cache Information > > > > > > On Mon, Mar 12, 2018 at 05:00:46PM -0400, Babu Moger wrote: > > > > From: Stanislav Lanci > > > > > > > > Add information for cpuid 0x8000001D leaf. Populate cache topology > > > information > > > > for different cache types(Data Cache, Instruction Cache, L2 and L3) > > > supported > > > > by 0x8000001D leaf. Please refer Processor Programming Reference > (PPR) > > > for AMD > > > > Family 17h Model for more details. > > > > > > > > Signed-off-by: Stanislav Lanci > > > > Signed-off-by: Babu Moger > > > > > > The new CPUID leaves don't seem to match the existing AMD cache > > > information > > > leaves. Is this intentional? Why? > > > > It is not intentional. These values are from older family of processors. > These values have changed from Family 14 or later. > > The latest one is Family 17. You can see the differences here. > > https://support.amd.com/TechDocs/41131.pdf > > > https://support.amd.com/TechDocs/55072_AMD_Family_15h_Models_70h- > 7Fh_BKDG.pdf > > > https://support.amd.com/TechDocs/54945_PPR_Family_17h_Models_00h- > 0Fh.pdf > > > > Some of these are bugs in our code. For some we need to add checks for > the family and correct these values. > > You understand the code much better than me. Correct me if I missed > something. > > > > Note that older family of processors don't support topology extensions. > > If you want to make the cache size/topology look different > depending on the CPU model/options, this would require more work, > but it would be an interesting feature. > > The "i386: Helpers to encode cache information consistently" > patch I sent last week might be a useful starting point for that. > > If you plan to implement that, please keep in mind that existing > CPUID cache info needs to be kept on previous machine-types (this > is implemented by adding QOM properties that can be used to > enable the old behavior, and by setting them at > MachineClass::compat_props). Wanted to get some confirmation what you meant by setting MachineClass::compat_props. Here is the patch I created to add new property for cpu. Now, I can use enable_topoext to display new change properly based on family. Is that what you meant ? > > -- > Eduardo diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index ffee841..d1ee053 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -369,6 +369,11 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *); HW_COMPAT_2_7 \ {\ .driver = TYPE_X86_CPU,\ + .property = "topoext",\ + .value = "off",\ + },\ + {\ + .driver = TYPE_X86_CPU,\ .property = "l3-cache",\ .value = "off",\ },\ diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 84d64de..557a2d6 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -5080,6 +5080,7 @@ static Property x86_cpu_properties[] = { false), DEFINE_PROP_BOOL("vmware-cpuid-freq", X86CPU, vmware_cpuid_freq, true), DEFINE_PROP_BOOL("tcg-cpuid", X86CPU, expose_tcg, true), + DEFINE_PROP_BOOL("topoext", X86CPU, enable_topoext, true), /* * From "Requirements for Implementing the Microsoft diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 2e2bab5..3d3caa1 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -1333,6 +1333,11 @@ struct X86CPU { */ bool enable_l3_cache; + /* Compatibility bits for old machine types. + * If true present the new cache topology information + */ + bool enable_topoext; + /* Compatibility bits for old machine types: */ bool enable_cpuid_0xb;