From nobody Tue Nov 26 18:27:14 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=1706153377; cv=none; d=zohomail.com; s=zohoarc; b=mPTiWB+UcuBGXLVhgGqak5kHDhMB1h39V0MW+6CK/BHwN57ZSp7t5uh4rrm5VLB1gAp7cZWvSVDdKans1CQKWVhcOOiY93n24mGMKs/vhzq2kACkhXEPMyjTFtijrsQA/MDzKJWlq/oi3tO5MvA4kQZXqwjx1BFu5j2pG+rIFc8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1706153377; 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=gQ0Sp9F1qvOJ3XhfE/bLXzwk0P7GOz29KCjZDGbkS78=; b=U/xsJy7E8DxhcmbkArqxXD1uIOVlDw9hPowYtFGJZ5kYXxxOFVdklBogBq8BlBFrml52RcmmgZhWqvs3EIXkA1epQvVEseLo48LPW7ic8U/u79dm2j+f63O4mHGWllegz9D+SLDtw28PtK4EKeC5LJ1JejVcLSKaf0pdRLTtR2I= 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 1706153377942890.4861228982032; Wed, 24 Jan 2024 19:29:37 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rSqQE-00042T-MQ; Wed, 24 Jan 2024 22:28:58 -0500 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 1rSqQC-0003uq-Dn for qemu-devel@nongnu.org; Wed, 24 Jan 2024 22:28:56 -0500 Received: from mgamail.intel.com ([192.198.163.10]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rSqQ9-0001E0-AA for qemu-devel@nongnu.org; Wed, 24 Jan 2024 22:28:55 -0500 Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jan 2024 19:25:16 -0800 Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by orviesa005.jf.intel.com with ESMTP; 24 Jan 2024 19:25:11 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1706153333; x=1737689333; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=MDV1CK+CwY5NNGZELqNeBXtymIPsaa9CAufkhjBYBw4=; b=QOs7BaWN6fzfVLSmmv25FWMMuULQY2KCcCDNW+NDoJSh4jyfU01996Io y/BxlYSB4O3YX9e271wMLfRetElA/mq8Ur8W8uTUCGDEAZcJxgyfQhc0Z VMe1oEhLsy/Eyr3y91VKiTSYPDg+y8rmqyA+OUslna/lt+ifIKMTgb5hL e58UWvqS5Mpf7p8ZtT/AgJ1Fcka1PklkgobyTyC5bgCDAnO1hhJWxAlSf SNvnzn6fNUjvH5pjMw0+dD7F31Q6rSZHQ1xx4oB/VFlh8/PNoKCj6o05j 1fnxg/FEPG44OuF7t9LYdTi3oGyel3SAjXlxP/qubViUHDRgfsIML9elA Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10962"; a="9428469" X-IronPort-AV: E=Sophos;i="6.05,216,1701158400"; d="scan'208";a="9428469" X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.05,216,1701158400"; d="scan'208";a="2085263" From: Xiaoyao Li To: Paolo Bonzini , David Hildenbrand , Igor Mammedov , "Michael S . Tsirkin" , Marcel Apfelbaum , Richard Henderson , Peter Xu , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Cornelia Huck , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= , Eric Blake , Markus Armbruster , Marcelo Tosatti Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, xiaoyao.li@intel.com, Michael Roth , Sean Christopherson , Claudio Fontana , Gerd Hoffmann , Isaku Yamahata , Chenyi Qiang Subject: [PATCH v4 18/66] i386/tdx: Make Intel-PT unsupported for TD guest Date: Wed, 24 Jan 2024 22:22:40 -0500 Message-Id: <20240125032328.2522472-19-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240125032328.2522472-1-xiaoyao.li@intel.com> References: <20240125032328.2522472-1-xiaoyao.li@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=192.198.163.10; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -15 X-Spam_score: -1.6 X-Spam_bar: - X-Spam_report: (-1.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.5, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.999, HK_RANDOM_FROM=1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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: 1706153378258100003 Content-Type: text/plain; charset="utf-8" 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. [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 a962f8a4ea60..2703e97f991d 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 =3D=3D 1 && reg =3D=3D R_ECX && !enable_cpu_pm) { *ret &=3D ~CPUID_EXT_MONITOR; } + + /* QEMU Intel-pt support is broken, don't advertise Intel-PT */ + if (function =3D=3D 7 && reg =3D=3D R_EBX) { + *ret &=3D ~CPUID_7_0_EBX_INTEL_PT; + } } =20 enum tdx_ioctl_level{ --=20 2.34.1