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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8A544C433B4 for ; Mon, 26 Apr 2021 18:02:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 557AD613BC for ; Mon, 26 Apr 2021 18:02:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234320AbhDZSDd (ORCPT ); Mon, 26 Apr 2021 14:03:33 -0400 Received: from mga14.intel.com ([192.55.52.115]:31731 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234217AbhDZSDW (ORCPT ); Mon, 26 Apr 2021 14:03:22 -0400 IronPort-SDR: 7XUw59QjsrI+7p7DC69fqdnylSapn+bt61JWZpkU7mD+oA/+jgGTD65/2yCF9hk9Uu84tvAjXU 2TxMsbLCKq8A== X-IronPort-AV: E=McAfee;i="6200,9189,9966"; a="195934014" X-IronPort-AV: E=Sophos;i="5.82,252,1613462400"; d="scan'208";a="195934014" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Apr 2021 11:02:40 -0700 IronPort-SDR: 5Bh+oBc+13KOMasGgi9erfzxHWn4/g2mquTTNMpAAnToq3dOFSLYKKcKfmPOeAJs4ZVTKoOclI /BUnHykuhnlA== X-IronPort-AV: E=Sophos;i="5.82,252,1613462400"; d="scan'208";a="447353330" Received: from ssumanpx-mobl.amr.corp.intel.com (HELO skuppusw-mobl5.amr.corp.intel.com) ([10.254.34.197]) by fmsmga004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Apr 2021 11:02:40 -0700 From: Kuppuswamy Sathyanarayanan To: Peter Zijlstra , Andy Lutomirski , Dave Hansen , Dan Williams , Tony Luck Cc: Andi Kleen , Kirill Shutemov , Kuppuswamy Sathyanarayanan , Raj Ashok , Sean Christopherson , linux-kernel@vger.kernel.org, Kuppuswamy Sathyanarayanan Subject: [RFC v2 02/32] x86/tdx: Introduce INTEL_TDX_GUEST config option Date: Mon, 26 Apr 2021 11:01:29 -0700 Message-Id: <32870c547c6e143a8f42667c6087ee61dc07e90b.1619458733.git.sathyanarayanan.kuppuswamy@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add INTEL_TDX_GUEST config option to selectively compile TDX guest support. Signed-off-by: Kuppuswamy Sathyanarayanan Reviewed-by: Andi Kleen Reviewed-by: Tony Luck --- arch/x86/Kconfig | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 6b4b682af468..932e6d759ba7 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -875,6 +875,21 @@ config ACRN_GUEST IOT with small footprint and real-time features. More details can be found in https://projectacrn.org/. +config INTEL_TDX_GUEST + bool "Intel Trusted Domain eXtensions Guest Support" + depends on X86_64 && CPU_SUP_INTEL && PARAVIRT + depends on SECURITY + select PARAVIRT_XL + select X86_X2APIC + select SECURITY_LOCKDOWN_LSM + help + Provide support for running in a trusted domain on Intel processors + equipped with Trusted Domain eXtenstions. TDX is an new Intel + technology that extends VMX and Memory Encryption with a new kind of + virtual machine guest called Trust Domain (TD). A TD is designed to + run in a CPU mode that protects the confidentiality of TD memory + contents and the TD’s CPU state from other software, including VMM. + endif #HYPERVISOR_GUEST source "arch/x86/Kconfig.cpu" -- 2.25.1