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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8DA28C433F5 for ; Tue, 5 Oct 2021 12:30:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 710CB61526 for ; Tue, 5 Oct 2021 12:30:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235007AbhJEMby (ORCPT ); Tue, 5 Oct 2021 08:31:54 -0400 Received: from mga14.intel.com ([192.55.52.115]:34488 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234825AbhJEMbl (ORCPT ); Tue, 5 Oct 2021 08:31:41 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10127"; a="226037352" X-IronPort-AV: E=Sophos;i="5.85,348,1624345200"; d="scan'208";a="226037352" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Oct 2021 05:29:50 -0700 X-IronPort-AV: E=Sophos;i="5.85,348,1624345200"; d="scan'208";a="559304412" Received: from slwegrzy-mobl.amr.corp.intel.com (HELO skuppusw-mobl5.amr.corp.intel.com) ([10.212.129.144]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Oct 2021 05:29:48 -0700 Subject: Re: [PATCH v8 04/11] x86/tdx: Add Intel ARCH support to cc_platform_has() To: Randy Dunlap , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, Paolo Bonzini , David Hildenbrand , Andrea Arcangeli , Josh Poimboeuf , 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 References: <20211005025205.1784480-1-sathyanarayanan.kuppuswamy@linux.intel.com> <20211005025205.1784480-5-sathyanarayanan.kuppuswamy@linux.intel.com> <50eaabfc-50b2-7617-ed9f-61f61b619cd8@infradead.org> From: "Kuppuswamy, Sathyanarayanan" Message-ID: <0350a300-dced-c10e-a4ce-53fb50a7a11a@linux.intel.com> Date: Tue, 5 Oct 2021 05:29:44 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <50eaabfc-50b2-7617-ed9f-61f61b619cd8@infradead.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/4/21 9:47 PM, Randy Dunlap wrote: > On 10/4/21 7:51 PM, Kuppuswamy Sathyanarayanan wrote: >> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig >> index c42dd8a2d1f4..abb249dc829d 100644 >> --- a/arch/x86/Kconfig >> +++ b/arch/x86/Kconfig >> @@ -871,6 +871,7 @@ config INTEL_TDX_GUEST >>       depends on SECURITY >>       select X86_X2APIC >>       select SECURITY_LOCKDOWN_LSM >> +    select ARCH_HAS_CC_PLATFORM > > Where is ARCH_HAS_CC_PLATFORM defined, please? > I can't seem to find it. It is merged to tip tree. https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=46b49b12f3fc5e1347dba37d4639e2165f447871 > >>       help >>         Provide support for running in a trusted domain on Intel processors >>         equipped with Trusted Domain eXtensions. TDX is a Intel technology > > > thanks. -- Sathyanarayanan Kuppuswamy Linux Kernel Developer