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 D3BD8C433FE for ; Thu, 16 Sep 2021 18:36:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B68A7611CA for ; Thu, 16 Sep 2021 18:36:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349396AbhIPShm (ORCPT ); Thu, 16 Sep 2021 14:37:42 -0400 Received: from mga07.intel.com ([134.134.136.100]:52262 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348406AbhIPSh0 (ORCPT ); Thu, 16 Sep 2021 14:37:26 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10109"; a="286319730" X-IronPort-AV: E=Sophos;i="5.85,299,1624345200"; d="scan'208";a="286319730" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Sep 2021 11:36:02 -0700 X-IronPort-AV: E=Sophos;i="5.85,299,1624345200"; d="scan'208";a="545819407" Received: from rswart-mobl1.amr.corp.intel.com (HELO skuppusw-desk1.amr.corp.intel.com) ([10.255.64.59]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Sep 2021 11:36:02 -0700 From: Kuppuswamy Sathyanarayanan To: Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, Paolo Bonzini , Juergen Gross , Deep Shah , VMware Inc , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel Cc: Peter H Anvin , Dave Hansen , Tony Luck , Dan Williams , Andi Kleen , Kirill Shutemov , Sean Christopherson , Kuppuswamy Sathyanarayanan , linux-kernel@vger.kernel.org Subject: [PATCH v7 03/12] x86/tdx: Introduce INTEL_TDX_GUEST config option Date: Thu, 16 Sep 2021 11:35:41 -0700 Message-Id: <20210916183550.15349-4-sathyanarayanan.kuppuswamy@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210916183550.15349-1-sathyanarayanan.kuppuswamy@linux.intel.com> References: <20210916183550.15349-1-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 v6: * None Changes since v5: * None 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 2b2a9639d8ae..6ed6afee0424 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