From nobody Sat Apr 5 17:58:19 2025 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=1737726046; cv=none; d=zohomail.com; s=zohoarc; b=UojbmZCqWyIwcg+U0IDflkJ+DeCV1UbJHthsjclxgfTM/1x3y5vdg70rOYY/YY4yCxqITZgo2ZI/T91K6zFJ5VKjG82GxRUcOGYolFvPio0RU3rvgShvpaKOcB6CM9JEaM53SwqUmTKvPoZnfwDEWciwLY7y1NYJLvR72NOnSRQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1737726046; 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=G8ekRxYM1v63/wHutuAoik2h1zXqjJq0+j3VsIZV3Fc=; b=f1HbHRF1mmFMcflCXPVNIWbluHmzlg37qdJsg6dFQVprI4aKGKtAnxM1Gk8D6d6ShFt0wWY40FKMLCFVSLbfqByydTaUZ8mCpMBmlmVlO++vGTDE1s4VUSU9r1YJ46lqLn6j/Zg1r1cNNTHewZdl96XTyBq2cuHavQg4Sh2jovg= 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 1737726046514665.0570043396548; Fri, 24 Jan 2025 05:40:46 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tbJuY-0000qs-GW; Fri, 24 Jan 2025 08:39:51 -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 1tbJuP-00089L-09 for qemu-devel@nongnu.org; Fri, 24 Jan 2025 08:39:41 -0500 Received: from mgamail.intel.com ([198.175.65.13]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tbJuN-0003xi-2z for qemu-devel@nongnu.org; Fri, 24 Jan 2025 08:39:40 -0500 Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jan 2025 05:39:19 -0800 Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by fmviesa003.fm.intel.com with ESMTP; 24 Jan 2025 05:39:14 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1737725980; x=1769261980; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=VD5cLhhOxm2rY5XZ6+nf6tMgf/SKVeJGzlvaWHkLI9U=; b=fctyXJIGhgS9e8PxmbJwiOCMmZqLpYwAF3SiQCfA39cjKxuOfZ9Gof19 vwIoBLL4N018LABwEifzAcr4VMcW3GAlWsCWnSsBYQKIUaL9ZcuqkHjKA kcudhzhZT8/fbvNro445pFIaVH7CCQ5hSF7bBMezCLGsL8InW8qpryPGS eDtpyaKz7VYjMPlCCF+Z7rY92CQcWZuhpzzTA8QkzOLzvIojDAkKyHkOW GCWDdAl7n+ew6JEFKnUIPLDKZpHkb/1NcAFBZQjmsPcXS1+Wt43kOjevF HxL3ppkiebAlmKLM4opV99ejAWrVdo1ZghMak68PZ77VbpkfDqq/ezlPm A==; X-CSE-ConnectionGUID: FcC/2t8VQoG6dHbrlMuV+A== X-CSE-MsgGUID: dytJ3rjJQ9iCQsza0SuA+g== X-IronPort-AV: E=McAfee;i="6700,10204,11325"; a="49246516" X-IronPort-AV: E=Sophos;i="6.13,231,1732608000"; d="scan'208";a="49246516" X-CSE-ConnectionGUID: k5hFUSl5SLWds1zHhX0NtQ== X-CSE-MsgGUID: ud8VOOXFTjingq/w1aRZCg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="111804414" From: Xiaoyao Li To: Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Igor Mammedov Cc: Zhao Liu , "Michael S. Tsirkin" , Eric Blake , Markus Armbruster , Peter Maydell , Marcelo Tosatti , Huacai Chen , Rick Edgecombe , Francesco Lavra , xiaoyao.li@intel.com, qemu-devel@nongnu.org, kvm@vger.kernel.org Subject: [PATCH v7 36/52] i386/tdx: Don't synchronize guest tsc for TDs Date: Fri, 24 Jan 2025 08:20:32 -0500 Message-Id: <20250124132048.3229049-37-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250124132048.3229049-1-xiaoyao.li@intel.com> References: <20250124132048.3229049-1-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=198.175.65.13; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -63 X-Spam_score: -6.4 X-Spam_bar: ------ X-Spam_report: (-6.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.996, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=0.998, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1737726048376019100 Content-Type: text/plain; charset="utf-8" From: Isaku Yamahata TSC of TDs is not accessible and KVM doesn't allow access of MSR_IA32_TSC for TDs. To avoid the assert() in kvm_get_tsc, make kvm_synchronize_all_tsc() noop for TDs, Signed-off-by: Isaku Yamahata Reviewed-by: Connor Kuehl Signed-off-by: Xiaoyao Li Acked-by: Gerd Hoffmann --- target/i386/kvm/kvm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 741b50181ed9..ead1d0263385 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -327,7 +327,7 @@ void kvm_synchronize_all_tsc(void) { CPUState *cpu; =20 - if (kvm_enabled()) { + if (kvm_enabled() && !is_tdx_vm()) { CPU_FOREACH(cpu) { run_on_cpu(cpu, do_kvm_synchronize_tsc, RUN_ON_CPU_NULL); } --=20 2.34.1