From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@kernel.org>
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=-8.7 required=3.0 tests=BAYES_00,
	HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,
	SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 ACB66C00143
	for <linux-kernel@archiver.kernel.org>; Mon,  2 Aug 2021 10:35:02 +0000 (UTC)
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by mail.kernel.org (Postfix) with ESMTP id 9BF6B60F9E
	for <linux-kernel@archiver.kernel.org>; Mon,  2 Aug 2021 10:35:02 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S233331AbhHBKfK (ORCPT <rfc822;linux-kernel@archiver.kernel.org>);
        Mon, 2 Aug 2021 06:35:10 -0400
Received: from 8bytes.org ([81.169.241.247]:52370 "EHLO theia.8bytes.org"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S233294AbhHBKfI (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
        Mon, 2 Aug 2021 06:35:08 -0400
Received: by theia.8bytes.org (Postfix, from userid 1000)
        id 39E14379; Mon,  2 Aug 2021 12:34:57 +0200 (CEST)
Date:   Mon, 2 Aug 2021 12:34:51 +0200
From:   Joerg Roedel <joro@8bytes.org>
To:     Tom Lendacky <thomas.lendacky@amd.com>
Cc:     linux-kernel@vger.kernel.org, x86@kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org,
        iommu@lists.linux-foundation.org, kvm@vger.kernel.org,
        linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org,
        linux-graphics-maintainer@vmware.com,
        amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
        kexec@lists.infradead.org, linux-fsdevel@vger.kernel.org,
        Borislav Petkov <bp@alien8.de>,
        Brijesh Singh <brijesh.singh@amd.com>,
        Andi Kleen <ak@linux.intel.com>,
        Sathyanarayanan Kuppuswamy 
        <sathyanarayanan.kuppuswamy@linux.intel.com>,
        Tianyu Lan <Tianyu.Lan@microsoft.com>
Subject: Re: [PATCH 01/11] mm: Introduce a function to check for
 virtualization protection features
Message-ID: <YQfKS6kv+RaxdNKI@8bytes.org>
References: <cover.1627424773.git.thomas.lendacky@amd.com>
 <cbc875b1d2113225c2b44a2384d5b303d0453cf7.1627424774.git.thomas.lendacky@amd.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <cbc875b1d2113225c2b44a2384d5b303d0453cf7.1627424774.git.thomas.lendacky@amd.com>
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Tue, Jul 27, 2021 at 05:26:04PM -0500, Tom Lendacky wrote:
> In prep for other protected virtualization technologies, introduce a
> generic helper function, prot_guest_has(), that can be used to check
> for specific protection attributes, like memory encryption. This is
> intended to eliminate having to add multiple technology-specific checks
> to the code (e.g. if (sev_active() || tdx_active())).
> 
> Co-developed-by: Andi Kleen <ak@linux.intel.com>
> Signed-off-by: Andi Kleen <ak@linux.intel.com>
> Co-developed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
> Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>

Reviewed-by: Joerg Roedel <jroedel@suse.de>