From mboxrd@z Thu Jan 1 00:00:00 1970 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 89A32C433F5 for ; Thu, 12 May 2022 03:22:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239999AbiELDV7 (ORCPT ); Wed, 11 May 2022 23:21:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37332 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344520AbiELDU5 (ORCPT ); Wed, 11 May 2022 23:20:57 -0400 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7D1C9DF0B for ; Wed, 11 May 2022 20:20:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1652325654; x=1683861654; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=NHKGCbrxezr1DtKhhV4XECsgf11so5OSfvqZQGOrcvo=; b=iMJEtz00BeuMiiHsZXyAgSo1jqKNag3kp3AeniwSPE/iqddfDIulHjXS I+vsYQ4Q1gY8kaFk6jmcwYW1dCtaf3gJlDuHbycoCVsWIZW5F3u8B9LkI wxlDOMAxkzYhQ1ERbGwzHSpBvrj9O+1cJcVXPtm3Kt4LN7WI7LXeOd2Qp +j2xzhZXDiZ3sqL5XcovNLG5uT5+hdjRyuaOKhIhE9EfxgS+NuvmCneCY gYfSCq/oEgExFKEamfEjBVIoFD8PN2KAXjAAklWEcbOWgvQZVjrZTngSh z+sW497RwAdbLH8VdtMq+WphnrHucSgMYmJTEJCUGYDK4JVAdWdEWL6xO Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10344"; a="269815689" X-IronPort-AV: E=Sophos;i="5.91,218,1647327600"; d="scan'208";a="269815689" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 20:20:54 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,218,1647327600"; d="scan'208";a="594456743" Received: from lxy-dell.sh.intel.com ([10.239.159.55]) by orsmga008.jf.intel.com with ESMTP; 11 May 2022 20:20:49 -0700 From: Xiaoyao Li To: Paolo Bonzini , Isaku Yamahata , isaku.yamahata@intel.com, Gerd Hoffmann , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= , =?UTF-8?q?Philippe=20Mathieu-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: [RFC PATCH v4 34/36] i386/tdx: Skip kvm_put_apicbase() for TDs Date: Thu, 12 May 2022 11:18:01 +0800 Message-Id: <20220512031803.3315890-35-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220512031803.3315890-1-xiaoyao.li@intel.com> References: <20220512031803.3315890-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org KVM doesn't allow wirting to MSR_IA32_APICBASE for TDs. Signed-off-by: Xiaoyao Li --- target/i386/kvm/kvm.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 9c5bf075b542..4d520d0e34bd 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -2907,6 +2907,11 @@ void kvm_put_apicbase(X86CPU *cpu, uint64_t value) { int ret; + /* TODO: Allow accessing guest state for debug TDs. */ + if (is_tdx_vm()) { + return; + } + ret = kvm_put_one_msr(cpu, MSR_IA32_APICBASE, value); assert(ret == 1); } -- 2.27.0