From patchwork Tue Aug 2 07:47:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 1662893 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=WC1PYrbn; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 bilbo.ozlabs.org (Postfix) with ESMTPS id 4Lxq0d05tJz9s5W for ; Tue, 2 Aug 2022 19:08:32 +1000 (AEST) Received: from localhost ([::1]:39898 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oInt7-000309-Ko for incoming@patchwork.ozlabs.org; Tue, 02 Aug 2022 05:08:29 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58398) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oImfT-0005Pa-Ns for qemu-devel@nongnu.org; Tue, 02 Aug 2022 03:50:19 -0400 Received: from mga04.intel.com ([192.55.52.120]:60017) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oImfS-0006mb-2s for qemu-devel@nongnu.org; Tue, 02 Aug 2022 03:50:19 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1659426618; x=1690962618; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=9//zBxLGogMK/1vL6yE+5YjsKBXb0DaTP7cMqUI8fyU=; b=WC1PYrbnMVbcPfz0G9+e618CkG8SJXhdh5b3aW65FNn3QUv6teal0FI/ YuY+JD0pwLDKfaReYD0HRqFQ+eu93DcuMpKswu0+e9J1n6Ga7wlUVpnfA m3JVZU+XnlRv70RQkiTJ49tvaRAS1KA+vs13IkL3n5Amg7j6uDVYdybAE a9dwz8Z5x39PnHOkUdBqj9g2oZqaplvymgqX26RzNb8llr3arRJaU6JHd vp5ebMsa+aHUj6ImtQV6siCV2aNkyODnHbclR10NWmTsxDMKYjO0/A0bD XwPqS1XuTMiSg76p27Go8KJGMZGGP+cQIwKDl72sUglV7m74ycWUmZTgp Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10426"; a="288105789" X-IronPort-AV: E=Sophos;i="5.93,210,1654585200"; d="scan'208";a="288105789" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Aug 2022 00:50:17 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,210,1654585200"; d="scan'208";a="630604387" Received: from lxy-dell.sh.intel.com ([10.239.48.38]) by orsmga008.jf.intel.com with ESMTP; 02 Aug 2022 00:50:13 -0700 From: Xiaoyao Li To: Paolo Bonzini , Isaku Yamahata , Gerd Hoffmann , =?utf-8?q?Daniel_P_=2E_Berrang=C3=A9?= , =?utf-8?q?Phi?= =?utf-8?q?lippe_Mathieu-Daud=C3=A9?= , Richard Henderson , "Michael S . Tsirkin" , Marcel Apfelbaum , Cornelia Huck , Marcelo Tosatti , Laszlo Ersek , Eric Blake Cc: Connor Kuehl , erdemaktas@google.com, kvm@vger.kernel.org, qemu-devel@nongnu.org, seanjc@google.com, xiaoyao.li@intel.com Subject: [PATCH v1 33/40] i386/tdx: Don't allow system reset for TDX VMs Date: Tue, 2 Aug 2022 15:47:43 +0800 Message-Id: <20220802074750.2581308-34-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220802074750.2581308-1-xiaoyao.li@intel.com> References: <20220802074750.2581308-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=192.55.52.120; envelope-from=xiaoyao.li@intel.com; helo=mga04.intel.com X-Spam_score_int: -24 X-Spam_score: -2.5 X-Spam_bar: -- X-Spam_report: (-2.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.998, HK_RANDOM_FROM=0.998, 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" TDX CPU state is protected and thus vcpu state cann't be reset by VMM. 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 1545b6f870f5..8c282122ed67 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -5455,7 +5455,7 @@ bool kvm_has_waitpkg(void) bool kvm_arch_cpu_check_are_resettable(void) { - return !sev_es_enabled(); + return !sev_es_enabled() && !is_tdx_vm(); } #define ARCH_REQ_XCOMP_GUEST_PERM 0x1025