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,URIBL_BLOCKED,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 A7842C432BE for ; Wed, 4 Aug 2021 18:14:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 873C361040 for ; Wed, 4 Aug 2021 18:14:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240109AbhHDSPC (ORCPT ); Wed, 4 Aug 2021 14:15:02 -0400 Received: from mga02.intel.com ([134.134.136.20]:49808 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240034AbhHDSO7 (ORCPT ); Wed, 4 Aug 2021 14:14:59 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10066"; a="201151077" X-IronPort-AV: E=Sophos;i="5.84,295,1620716400"; d="scan'208";a="201151077" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Aug 2021 11:14:46 -0700 X-IronPort-AV: E=Sophos;i="5.84,295,1620716400"; d="scan'208";a="503075820" Received: from mjkendri-mobl.amr.corp.intel.com (HELO skuppusw-desk1.amr.corp.intel.com) ([10.254.17.117]) by fmsmga004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Aug 2021 11:14:45 -0700 From: Kuppuswamy Sathyanarayanan To: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Peter Zijlstra , Andy Lutomirski Cc: Peter H Anvin , Dave Hansen , Tony Luck , Dan Williams , Andi Kleen , Kirill Shutemov , Sean Christopherson , Kuppuswamy Sathyanarayanan , x86@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 02/12] x86/tdx: Introduce INTEL_TDX_GUEST config option Date: Wed, 4 Aug 2021 11:13:19 -0700 Message-Id: <20210804181329.2899708-3-sathyanarayanan.kuppuswamy@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210804181329.2899708-1-sathyanarayanan.kuppuswamy@linux.intel.com> References: <20210804181329.2899708-1-sathyanarayanan.kuppuswamy@linux.intel.com> 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 --- Changes since v4: * None Changes since v3: * Removed PARAVIRT_XL from dependency list. * Fixed typo in help content. arch/x86/Kconfig | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index de58e0a5df50..ab0e7c346c44 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -865,6 +865,20 @@ 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 X86_X2APIC + select SECURITY_LOCKDOWN_LSM + help + Provide support for running in a trusted domain on Intel processors + equipped with Trusted Domain eXtensions. TDX is a 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