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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 CD519C433DB for ; Mon, 18 Jan 2021 20:31:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8B0C822CAD for ; Mon, 18 Jan 2021 20:31:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2394340AbhARUa1 (ORCPT ); Mon, 18 Jan 2021 15:30:27 -0500 Received: from mail.skyhub.de ([5.9.137.197]:50678 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2394211AbhARUaM (ORCPT ); Mon, 18 Jan 2021 15:30:12 -0500 Received: from zn.tnic (p200300ec2f069f0062c4736095b963a8.dip0.t-ipconnect.de [IPv6:2003:ec:2f06:9f00:62c4:7360:95b9:63a8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 21BE01EC04F0; Mon, 18 Jan 2021 21:29:31 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1611001771; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=cIG/RqO5JFDYb15YAf8/e61/XxXDZVIp5xUGVF2yUvY=; b=MpPyuIfc7DDypx2lEYCKWhuc3Wk1aGegxprSLXycDpMcX2hp6izTV9LoS+clIRpKKsTZLH xyiBE/lnlMo7KFz5WnoblI7J4pbcED0QXrZjZxJZ4p4vNbFbpnfs7/MExXFvnVmcP5p3X8 DjotxmnRtecHYy5TcbMfYI1HhFMubAE= Date: Mon, 18 Jan 2021 21:29:31 +0100 From: Borislav Petkov To: Sean Christopherson Cc: Thomas Gleixner , Ingo Molnar , x86@kernel.org, Andy Lutomirski , Paolo Bonzini , Dave Hansen , Peter Zijlstra , "H. Peter Anvin" , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Tom Lendacky , Brijesh Singh Subject: Re: [PATCH] x86/sev: Add AMD_SEV_ES_GUEST Kconfig for including SEV-ES support Message-ID: <20210118202931.GI30090@zn.tnic> References: <20210116002517.548769-1-seanjc@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20210116002517.548769-1-seanjc@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jan 15, 2021 at 04:25:17PM -0800, Sean Christopherson wrote: > Introduce a new Kconfig, AMD_SEV_ES_GUEST, to control the inclusion of > support for running as an SEV-ES guest. Pivoting on AMD_MEM_ENCRYPT for > guest SEV-ES support is undesirable for host-only kernel builds as > AMD_MEM_ENCRYPT is also required to enable KVM/host support for SEV and > SEV-ES. Huh, what? I'm not sure I understand what you're trying to say here and am not convinced why yet another Kconfig symbol is needed? -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette