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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 DCBC5C48BE0 for ; Fri, 11 Jun 2021 16:02:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BB549613EE for ; Fri, 11 Jun 2021 16:02:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230411AbhFKQEw (ORCPT ); Fri, 11 Jun 2021 12:04:52 -0400 Received: from mga17.intel.com ([192.55.52.151]:27117 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231196AbhFKQDl (ORCPT ); Fri, 11 Jun 2021 12:03:41 -0400 IronPort-SDR: /gPjWcXDEm1KS9CCdfUTA2xbdHD8bBZcAESNvyDvfYw9qaHKOY7XRGhkB5XZ+I2i2p74MX1mZX hnqriKDSclvg== X-IronPort-AV: E=McAfee;i="6200,9189,10012"; a="185926869" X-IronPort-AV: E=Sophos;i="5.83,265,1616482800"; d="scan'208";a="185926869" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jun 2021 09:01:04 -0700 IronPort-SDR: rFi6t35cd8XsBphG7z+d35GzVEcLMY3cshgxrVVxtgCufBVYZB9/2fCy0YXQr9/I2UTjYC2jg5 Whun5RyFeROQ== X-IronPort-AV: E=Sophos;i="5.83,265,1616482800"; d="scan'208";a="553447477" Received: from czanatax-mobl.amr.corp.intel.com (HELO skuppusw-mobl5.amr.corp.intel.com) ([10.254.184.187]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jun 2021 09:01:02 -0700 Subject: Re: [PATCH v1 1/7] x86/mm: Move force_dma_unencrypted() to common code To: Tom Lendacky , 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 References: <20210609215537.1956150-1-sathyanarayanan.kuppuswamy@linux.intel.com> <20210609215537.1956150-2-sathyanarayanan.kuppuswamy@linux.intel.com> <26979aed-bca0-7e0a-91af-f68da590454d@amd.com> From: "Kuppuswamy, Sathyanarayanan" Message-ID: <0b33a843-d68e-657c-ff4d-239501fe05c8@linux.intel.com> Date: Fri, 11 Jun 2021 09:00:58 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: <26979aed-bca0-7e0a-91af-f68da590454d@amd.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/11/21 7:43 AM, Tom Lendacky wrote: > Until other stuff is added, this should probably just be: > > return amd_force_dma_unencrypted(dev); Make sense. I will add sev and sme related checks when I extend it for TDX. -- Sathyanarayanan Kuppuswamy Linux Kernel Developer