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 89DFCC49361 for ; Fri, 18 Jun 2021 22:58:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6AE0E613C2 for ; Fri, 18 Jun 2021 22:58:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235165AbhFRXAr (ORCPT ); Fri, 18 Jun 2021 19:00:47 -0400 Received: from mga02.intel.com ([134.134.136.20]:13194 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235149AbhFRXAp (ORCPT ); Fri, 18 Jun 2021 19:00:45 -0400 IronPort-SDR: FuFGBJzkn2YOe8yiXBdFM2nYaL+yb/3SyZpZPKbOn3BiUqm31V70+rroAKWD/uIEtPWROPQJt6 rggGoTv+PtWw== X-IronPort-AV: E=McAfee;i="6200,9189,10019"; a="193763409" X-IronPort-AV: E=Sophos;i="5.83,284,1616482800"; d="scan'208";a="193763409" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jun 2021 15:58:35 -0700 IronPort-SDR: AmZL0dnfNF0EdBs2H7a9HjrfttGNfs/zkkNkcI71ucMeZ6mgKRHp1gb83i3lkYH4u/80T1zhOf 5cO1c6BeVAvg== X-IronPort-AV: E=Sophos;i="5.83,284,1616482800"; d="scan'208";a="554874161" Received: from shahdhav-mobl.amr.corp.intel.com (HELO skuppusw-desk1.amr.corp.intel.com) ([10.254.6.127]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jun 2021 15:58:34 -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 , Kuppuswamy Sathyanarayanan , x86@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 02/11] x86/tdx: Introduce INTEL_TDX_GUEST config option Date: Fri, 18 Jun 2021 15:57:46 -0700 Message-Id: <20210618225755.662725-3-sathyanarayanan.kuppuswamy@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210618225755.662725-1-sathyanarayanan.kuppuswamy@linux.intel.com> References: <20210618225755.662725-1-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 --- arch/x86/Kconfig | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 0045e1b44190..ff79263aebd1 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -876,6 +876,21 @@ 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 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