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: 12934328 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 20E79C00140 for ; Tue, 2 Aug 2022 07:50:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236259AbiHBHu6 (ORCPT ); Tue, 2 Aug 2022 03:50:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55868 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236169AbiHBHug (ORCPT ); Tue, 2 Aug 2022 03:50:36 -0400 Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1CE0C5F92 for ; Tue, 2 Aug 2022 00:50:18 -0700 (PDT) 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="272393188" X-IronPort-AV: E=Sophos;i="5.93,210,1654585200"; d="scan'208";a="272393188" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga106.jf.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 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org 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