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 A4037C27C4F for ; Fri, 31 May 2024 09:28:26 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sCyYO-0006aw-Ex; Fri, 31 May 2024 05:28:04 -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 1sCyYL-0006ab-ID for qemu-devel@nongnu.org; Fri, 31 May 2024 05:28:01 -0400 Received: from mgamail.intel.com ([192.198.163.7]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sCyYJ-0008PF-Rx for qemu-devel@nongnu.org; Fri, 31 May 2024 05:28:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1717147680; x=1748683680; h=message-id:date:subject:to:cc:references:from: in-reply-to:content-transfer-encoding:mime-version; bh=6JklTK6qjAIanYusm7JukOE1fj0NGatO39FaO9NYIC0=; b=DXa72oh+YxOkSZS6BnLVShekmROF2AbXYhpBJyejlRHMtdxVpXNZse+V c8hG7S5V/GZ4qYwZ/vfR2kqgnrBy8Np/P6JACJP3rkWXfJKG/+y5aS/Wz solCx7XVYb5PuAsgaQUg0sx4vU20FNK/bxEzhncwTnugMwOqNbQ2DYVjV 5vlfifWTb7GmuMYmdEnN3b8EvITUAHvStN+i85Q3z7qGexuFNCeQ9kluV 5FLL/j+jbSVOctBZ/WTeCC2Ul4uEuvyWXXEcOXZ6nqPApKjt3w+tWH7lD ZYZmar38UOS12ZQ4ArASYDppaQtHkl4Z4CWArzbG7gxrsjV9U/t6sM3s9 Q==; X-CSE-ConnectionGUID: YrMALALjRpin6T6Wyt9Shw== X-CSE-MsgGUID: G5EIahYzTI2gnC2PjDZV1g== X-IronPort-AV: E=McAfee;i="6600,9927,11088"; a="39076034" X-IronPort-AV: E=Sophos;i="6.08,203,1712646000"; d="scan'208";a="39076034" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 May 2024 02:27:57 -0700 X-CSE-ConnectionGUID: RIB5R5a0TzmLzlDO7nNJig== X-CSE-MsgGUID: ievPNq6WQP2ODM9aaVeI9Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,203,1712646000"; d="scan'208";a="36193260" Received: from orsmsx603.amr.corp.intel.com ([10.22.229.16]) by orviesa009.jf.intel.com with ESMTP/TLS/AES256-GCM-SHA384; 31 May 2024 02:27:57 -0700 Received: from orsmsx610.amr.corp.intel.com (10.22.229.23) by ORSMSX603.amr.corp.intel.com (10.22.229.16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Fri, 31 May 2024 02:27:56 -0700 Received: from ORSEDG601.ED.cps.intel.com (10.7.248.6) by orsmsx610.amr.corp.intel.com (10.22.229.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39 via Frontend Transport; Fri, 31 May 2024 02:27:56 -0700 Received: from NAM10-MW2-obe.outbound.protection.outlook.com (104.47.55.44) by edgegateway.intel.com (134.134.137.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 31 May 2024 02:27:56 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=nQLsu7ul83sa42zhv6fduLy8AxaLZcADjqtfi6qA6sT+N5CH9Z+MKDSt6JOGus9HjDXCemix+WLl0+frn5WirIpW4Co76kLLNDpiUyuxrKRHLIblVOFuWy6pEOYhUe+2/2W3vIBUAJN9imuy5Kn9MWG6zlJRhBFqi+DG2KOMS0KKWz9v4NEa3iMoWLGGH1dM4Z5BMGoK9hwwhe2xFK+m+r7gcxZXexCCEXLyRgFYAM9K2uCqQFX8VyNcXwnr1rNxyVJx9q1znJRVCZnjMu9xekgm1qyXtXNt6pDu+JWv3Ty/dleJqi8KqRBMk+pa+6fmoY2/+cjC/g6u3P5e7lHilw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=aWwyOZi/E1UkOe/y1n/kEHYr24gCZPMNuo4j5olHNmw=; b=CQr7zlsK/7I+eOWoGBsiK6spvL5y3VlQRPe8FNmScb2VhPArxx+kUdzGbjG5QQyw4fUNGWOUWEhBxo3qC+WP4muK8j5/lH8uoamwQ1w6aW37sj4BaORQ3LcOJwI/qdveC4UA/0lxwh/vGH4sRZOTLtnrS3MEAeAuhdUaZGph2Mme66cYDik0eaapaN9KCMjFCjUaa+KazFHjIZgRzZ3/EPOWVvadMqOJP2dClgWXHffSSsssFhaUNX3ClpXS6AA+8OJafzsxptIcRxgIX/0Y3eDdcE+KVrk8IhPR6BWq9fOnTQz7dybLEveH2OGG8Io2X3sx+ARt290QqLk0AJrtFQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=intel.com; Received: from SJ0PR11MB6744.namprd11.prod.outlook.com (2603:10b6:a03:47d::10) by MN0PR11MB5987.namprd11.prod.outlook.com (2603:10b6:208:372::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7633.19; Fri, 31 May 2024 09:27:54 +0000 Received: from SJ0PR11MB6744.namprd11.prod.outlook.com ([fe80::fe49:d628:48b1:6091]) by SJ0PR11MB6744.namprd11.prod.outlook.com ([fe80::fe49:d628:48b1:6091%7]) with mapi id 15.20.7633.021; Fri, 31 May 2024 09:27:54 +0000 Message-ID: <59fec569-95e1-9024-77fb-b6d2f89b3951@intel.com> Date: Fri, 31 May 2024 17:27:41 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.15.0 Subject: Re: [PATCH v5 18/65] i386/tdx: Make Intel-PT unsupported for TD guest Content-Language: en-US To: Xiaoyao Li , Paolo Bonzini , David Hildenbrand , Igor Mammedov , Eduardo Habkost , Marcel Apfelbaum , =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , Yanan Wang , "Michael S. Tsirkin" , Richard Henderson , Ani Sinha , Peter Xu , Cornelia Huck , =?UTF-8?Q?Daniel_P=2e_Berrang=c3=a9?= , Eric Blake , Markus Armbruster , Marcelo Tosatti CC: , , Michael Roth , Claudio Fontana , Gerd Hoffmann , Isaku Yamahata , Chenyi Qiang References: <20240229063726.610065-1-xiaoyao.li@intel.com> <20240229063726.610065-19-xiaoyao.li@intel.com> From: "Duan, Zhenzhong" In-Reply-To: <20240229063726.610065-19-xiaoyao.li@intel.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SG2PR02CA0114.apcprd02.prod.outlook.com (2603:1096:4:92::30) To SJ0PR11MB6744.namprd11.prod.outlook.com (2603:10b6:a03:47d::10) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ0PR11MB6744:EE_|MN0PR11MB5987:EE_ X-MS-Office365-Filtering-Correlation-Id: 798b0415-873c-42fc-e876-08dc8153f34c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230031|376005|7416005|366007|1800799015|921011; X-Microsoft-Antispam-Message-Info: =?utf-8?B?YU92cUFXWi9OUGExRDdGNzlqaVFhUWNnb3RIM1hBNlVidUpPNFMyMStxN1pN?= =?utf-8?B?UXpzSk45RmQrSVBuUTMvZDJsdHM0YllLT0Y4OEVNMGpGYXNYS282bTRBYW5y?= =?utf-8?B?U3UwTmc1Q3pVYmQxUFFRZUxJdzhXeENMa1ViL2d4MlBub2haN3ovTFB3eFJs?= =?utf-8?B?dGsvRFU1YWJmOHdia0Q4Q3ZuTFFEVTV1NkYxYUpsaktSU3BxVU0zUHpJRVVr?= =?utf-8?B?aEUxcEcwR2hpU2tyZUdIUDZSWVp1TEQ4YUgyTWw0T0NLbnhtckVnaXBDT1Ev?= =?utf-8?B?dlk0R1JNbFkveS82amxTZ002elVkUTgrenpFNDY0L0xCVzJpSFhDRGh2d2tt?= =?utf-8?B?WFhjd2VSU2N1bXFsb1B4bXhScGh1dTdKVjJpZUlHTVJ6NnhrOGxpcTZ0eVBS?= =?utf-8?B?UnAyb0pkTUMrTTVFeDduZkloeWY2WXBBS1JkUkhQRkF2bldKR1Vvb0RHbDJM?= =?utf-8?B?Ni9tWEJ6eENrMCsvQXo2dGVNaDlmWCszbnV5d1AxRXBQYkdLYU12SU0vVkZn?= =?utf-8?B?M1JodmFXT2NGbG41YUJpNVg2Z1NUODIvMXFMK3ZQZVRBczBqdFdUUnVaeUdZ?= =?utf-8?B?T29uOHFkYkVUUUhDNFFqUjdkbE5Ra0k4Sk1RbXBVZWNhR0RtTXBJdWR4eVBq?= =?utf-8?B?NHVhK29JaFREdkh0THd2dHZ4ZHVLZy83dFh5YXUxa2V2TC9JSHdKSTlwUkVu?= =?utf-8?B?RUVoeVhiUnpvUWJqL0lEMHE1TDB5ZnBEcHp0Zk1IS2pyL3RSSUk2alBZT1Bw?= =?utf-8?B?U3ZMcmRJejlETk8xUlh3UWY3aUF3ZUdLRXlLV2x1UklUeDRLRE5WY0ZVMU11?= =?utf-8?B?ZzE0Z0hBWE5BMGFnZUNXKzdkLy95ODNrdVRnL2tNRW4wVmM5NzFCVk8xYUc1?= =?utf-8?B?YzJDQ1BZODB6NHpwRnJLR20xZEcvaEJoenkyWkpJckFPdXNxcU1Ga0ZEYytC?= =?utf-8?B?QXhXV2E3NW0vSHk1SGY5aERUckN3T0xobHExWmxmNnZyWkRuOUZzWlRsbVUx?= =?utf-8?B?bVNoREhLcmZQVVlPODVZQ0tKV0UyWVVaMGNiSTQyajc4UzQ4NXM0S2Z6eS9l?= =?utf-8?B?Y2pWYk5yRVA5U0J0d3dqNms4VFFEaC96V1N5a1AvaDVaNno0bnlHTmlXQldI?= =?utf-8?B?d1RNcVQzZ2twVlB3S3k3dElLdnpaU2ZtNExPYnNRZzlzOE9NTXBwRDZDanlr?= =?utf-8?B?UDlocE51TVdwT2pyMWVidFdKZkRBR083c1paQXBYUC9MRHhVdXE2Yy9hNTN6?= =?utf-8?B?clBHTUtFN05PbGdWSGxpSTU5SENEZGlkUGE4cTd2WlVCSzNBNjU5VEJVUXpF?= =?utf-8?B?MGFubkw3RnFaOEd5QVlXcFZwTUoxOTRldjM5eEpKalV6VmhXcU5QVHJqUExK?= =?utf-8?B?MUQ2WGp1bjlrcXk3SllIZW55MHJXSWl2VGsrNlU1M2FZR1BSREtwVDJVRjNV?= =?utf-8?B?YWtrcEhxNFpkQmJlOWxLVFRoUi9TUE42RFZzaG5DeVFtNGwycTBnaWo4QlZn?= =?utf-8?B?Zm5YVjd0TU1BSzRIcnBkRHhLMUNvZmJ0NlVPT054dFFRWGlUZ0JPR054QXZ5?= =?utf-8?B?bldqUnFjT1BRRHFyK1plTDdYdy9OZTY3OVhpVUFXTk9YNTRQeDN1elJqVkJu?= =?utf-8?B?U21yWWZ0MmdRRFJwT3JxdURRaVRpakJOWjk4b1FXQlVVM0NwcWtjWnltZm5l?= =?utf-8?B?eFNKbkR4ZnhPQ2Z4WmxiaW1DYUVDK0VoU01FdHNGOHlnaTdTY2xoblR3PT0=?= X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:SJ0PR11MB6744.namprd11.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230031)(376005)(7416005)(366007)(1800799015)(921011); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?RkQ0TUdXY0F3RmlrWCtSMFByVnNPV2xqbUhzN1hkYXFYRkh4dXRYeDV0M25P?= =?utf-8?B?a0JaSWpha1pjb05ZUU1FZXI4OUhzZjgrc010RFdoQWc3aVJBd2tFOXFVV1Z6?= =?utf-8?B?M01qK3VGT2FyYlJuekpRaDcxU1dEMHdic3hqV0F0OHN5dzZFR1BQaU5nc3Uy?= =?utf-8?B?ZEMxakNTTUJCell2alBCRjh0dXUzN1MwR2NtZk9iWW5jVlJqQXBjMVdDY1Ni?= =?utf-8?B?Zk5CNE54YWp5Yzh2azZUNS9Ea0VBVitXVkY4aUFKWFlkMmtZVmlCWEpuN1l2?= =?utf-8?B?d0JGQ3pZbXQwS3hhK3R0RkNiZnJUZ0tmT1h6Y2xSZy9WRzhVQUwxZHhySU1z?= =?utf-8?B?SzJXWE52ME41WEZKelBNK1pCMVRYNDRkd1BCa0thMVNYN0pNU3ZwM1d3TkRv?= =?utf-8?B?QVJTbFBweEZjZDZWYnJQRnNzeGpYNDNLaVF6dlloZy9hMnFaTnVZaWF2KzJV?= =?utf-8?B?MmpTQXBXdUlrZXdLa0pHaldpMlVQTnRHeisvT2gremtsNVFYbzhNOXhCKzVC?= =?utf-8?B?U0h3bXp2OXdzcS9lbXFCNGtONHlTcUYydS9tL1UrK04ycGlUallhLzVtUVA4?= =?utf-8?B?TDNwcWprQW9meHFUZnI1bWJtNHJSeUkzRk41Sm1BMVhLVWpWWmlUa1VFRERF?= =?utf-8?B?LzAzZ2xTVGZrNjMyNTR2S0MxMHVmT2ZuWHN2K1FGamoyc256VDdDNkd1VVNG?= =?utf-8?B?T2d4TWxZeFJsTnYrUXJoMnZocXpFU3NKanQ3SVkzNkorWlRjWlNVVHpGSmhT?= =?utf-8?B?ajlzMlZUb1ZRRmtYSHFXTlY0TUNQZUNNSUZ3Z0xwdWtOemtNUUZLOEZKU1NH?= =?utf-8?B?a2lURzlHejhyYmlXTlhQbjB6b0JSTzRDN2hDdlJWRUlOWXhPUUx6enpuazY4?= =?utf-8?B?OW5CU29Hamc2L0RvaXEzNGJUcThxVFNSSmlCM1R0cGRaM3Z4azRvbmZ3dUl4?= =?utf-8?B?OWJKSlduNnlyRmlUd1dKTVNhWENEaVFxYTNzUDBic1VTVkE1Qks2cUdtancr?= =?utf-8?B?cHFtRjJ5Vm9WazBOSUdJZ3p0MW12M1ViUmxtWWVsTHZTMUxzd1VwM3QzSWtG?= =?utf-8?B?ajR0dlZFRVdOQndtMkVDcHpSTWhOWE5rSjBJVFF4ZFhyQW1VY3hsN0ZXeEd1?= =?utf-8?B?ck45UTBpcWc2ZnBJckIyVjd3dWwwVU1RY2dTTXNFYTZ3cEg1cnRRMWJtdHJH?= =?utf-8?B?YVBucStsVFlSM1c5RmtnUndMNTd3UGwxOS9kNDJJYmtHckJSdVFoSDhQMDl2?= =?utf-8?B?cHNoY09oVDErMGRMa0Y4WFpubGFUN0Y1My9ZRlVsWm03VFlKTTBmQ1Vyb2Z2?= =?utf-8?B?N1NMTms1N2piNjd4SzZrdGM3VEZUOCtwVnRNdDdtN2dxYzcyckRpcHlGT25U?= =?utf-8?B?SWZpR0ZJb1Y3VDQ5c2RndStqb2luUSsvN3NxUDBQMU16dzFlc0M3ZUR3RUN1?= =?utf-8?B?cnpaMURJOENMcDJHR1ErRU1UeGxnaEZ2YUxUNUIxcUdQRVcxeGp0SlZ4SnZG?= =?utf-8?B?aE1XcEkwKzZ5VkFBZHVKd1pybFM3OTdnTE9CWnBvT0hsNnRFVHMvZ2RxbzVs?= =?utf-8?B?d3VmSjZSSlRYMEpWQ1E3cjBvS2FBVGxONGRkODg5MVZDWjE0ZnVCRzZBMlNt?= =?utf-8?B?WTc4dEFjbVhVdmxyQ3dhRlcyVkNzSWs1U0Q1ME92L3hoK2R3SXZIRGdua2wx?= =?utf-8?B?NDV1elZMMjdMNnBRcXl5VmlrZ2htUjUwZkZsNUNUbWdHTFRacStIQUdKZ3ZJ?= =?utf-8?B?OHRtQWlsem16cEFWeTZVcGRITTBJN0NBMjJuUEFHV2pSelg0d3BtNG1LNUJX?= =?utf-8?B?cVNaNVloa1V4eWJ3QnY1S0RxZm4yUzlDNmsxc1NScGlTOEJTdU95RnB3SmhV?= =?utf-8?B?Z25EVldLVzBSWFhtVWNtODA2bHFVZFErNmlHOElUM2pZblhVbGpwK3JWTjNY?= =?utf-8?B?WnE5M2JPMWI1NGFqVjJ1R3B1YmdFMzNldWtXcG92eVdtcGRtclE3d05nQXJP?= =?utf-8?B?WmxSM3JuVTVGZENPQmE2SWR0ZkZuZlN1NmhjTUU2bWpma0VDbTM2bjBydi9j?= =?utf-8?B?K3VQZ2N5cFZkTDU2Y2FDci9xWEJZb2RqMkN1K2srZDZYM0c2REVuTjgwa1dQ?= =?utf-8?B?cEE4bHZpVVgrSEN0VndIbmNWMFhtcDZ6bWRTN3YyT1VNWjN1M25yVEtyZ1FJ?= =?utf-8?B?YVE9PQ==?= X-MS-Exchange-CrossTenant-Network-Message-Id: 798b0415-873c-42fc-e876-08dc8153f34c X-MS-Exchange-CrossTenant-AuthSource: SJ0PR11MB6744.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 May 2024 09:27:54.6398 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: unYzWxG5WJRirpH0bbsWs11ML6D5us85cPoFyUbn5Nl5lW9Yf746KLPYkKApvB/OyGu5j4jwbV0IP07VerEzSIMcCeaDm0zXOMXHf40ssVY= X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR11MB5987 X-OriginatorOrg: intel.com Received-SPF: pass client-ip=192.198.163.7; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -87 X-Spam_score: -8.8 X-Spam_bar: -------- X-Spam_report: (-8.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.085, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-4.299, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-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 2/29/2024 2:36 PM, Xiaoyao Li wrote: > Due to the fact that Intel-PT virtualization support has been broken in > QEMU since Sapphire Rapids generation[1], below warning is triggered when > luanching TD guest: > > warning: host doesn't support requested feature: CPUID.07H:EBX.intel-pt [bit 25] > > Before Intel-pt is fixed in QEMU, just make Intel-PT unsupported for TD > guest, to avoid the confusing warning. I guess normal guest has same issue. Thanks Zhenzhong > > [1] https://lore.kernel.org/qemu-devel/20230531084311.3807277-1-xiaoyao.li@intel.com/ > > Signed-off-by: Xiaoyao Li > --- > Changes in v4: > - newly added patch; > --- > target/i386/kvm/tdx.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c > index 85d96140b450..239170142e4f 100644 > --- a/target/i386/kvm/tdx.c > +++ b/target/i386/kvm/tdx.c > @@ -292,6 +292,11 @@ void tdx_get_supported_cpuid(uint32_t function, uint32_t index, int reg, > if (function == 1 && reg == R_ECX && !enable_cpu_pm) { > *ret &= ~CPUID_EXT_MONITOR; > } > + > + /* QEMU Intel-pt support is broken, don't advertise Intel-PT */ > + if (function == 7 && reg == R_EBX) { > + *ret &= ~CPUID_7_0_EBX_INTEL_PT; > + } > } > > enum tdx_ioctl_level{