From nobody Tue Nov 26 18:49:14 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=1706153611; cv=none; d=zohomail.com; s=zohoarc; b=g+M6vVZk7ezd8jz4D+x+Ik7opnf9Kll9gV/0leFxgQnZucDsbIKHawEvZOJRN3SoIBAF3CxqWTgg14d2du9HefipARdqHe/NR8lL7ApYnKwJvn+FGdm8ZLwP3QYGao3G15apJh8IzfAFy/TkGUs/Iwe2NAlPkjZttvVMF56DtCE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1706153611; 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=aXM9tMJOMIA9Sif6K8oTbRPX7FTOBLQiPGEeUPZdA/k=; b=ZX1kXnR5GiAkaiiFM91cx7X7plerxZB21cQzvL+yCMA/zUWFyEtm8qE8x8MSYhLiAnmbqfxeU31Ua8r2anKmNrvE/zKhCfxAPtT/4UPDf3JIRZ1uSkSmubQ3Jt74PXukJfJQLp8xZPA5Pi7f/aOfxYEdtsMydz4B1dq51eZLYZ4= 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 1706153611456409.8192895251683; Wed, 24 Jan 2024 19:33:31 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rSqTP-0000uW-Bi; Wed, 24 Jan 2024 22:32:15 -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 1rSqTN-0000fo-Ix for qemu-devel@nongnu.org; Wed, 24 Jan 2024 22:32:13 -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 1rSqTL-0001Dy-OD for qemu-devel@nongnu.org; Wed, 24 Jan 2024 22:32:13 -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 19:29:16 -0800 Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by orviesa005.jf.intel.com with ESMTP; 24 Jan 2024 19:29:11 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1706153532; x=1737689532; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=TKA28+Dx6zOdHE4DhRojgeAEHx1tDI944sZoIp6Ps1o=; b=GqrQhdEe+q7SqIBe+3FOh1ZG4TJyteXELbQ5+CQYylO5qShmRxqg8XZP 9V7mF8ZZwhFP99EgPhX1ZHweb62YzebuewKtUNktNua5WMESRyQYvzwBs LSKVuSWj4CreOSALHobY+nYdwP+FfP0Yc88k4ieWatz+YeA6qWS0IhQ4y VSU2ap02lcMAy3BsrXDfMCA/isG4HvvVjjK1TXMuRPP8rRSrqiJusxAXs FFLILdnfKv1O+b4TzPk5+RJGf09906siWn5Ojb3r9O/8zUUamicSFRjEJ H7Sc8g9Pvc15FDqKfs9uXVmrM9CWdxI6proEcO5Y+foVf2FuMkiLp3QKb Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10962"; a="9430501" X-IronPort-AV: E=Sophos;i="6.05,216,1701158400"; d="scan'208";a="9430501" X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.05,216,1701158400"; d="scan'208";a="2086590" 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 62/66] i386/tdx: Don't synchronize guest tsc for TDs Date: Wed, 24 Jan 2024 22:23:24 -0500 Message-Id: <20240125032328.2522472-63-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: 1706153612792100007 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 0ec0584d22ca..d8819da8dccc 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -278,7 +278,7 @@ 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