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=-18.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_IN_DEF_DKIM_WL 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 582C0C433E0 for ; Mon, 11 Jan 2021 20:29:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EAFEE22C7E for ; Mon, 11 Jan 2021 20:29:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731783AbhAKU3V (ORCPT ); Mon, 11 Jan 2021 15:29:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58810 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730029AbhAKU3U (ORCPT ); Mon, 11 Jan 2021 15:29:20 -0500 Received: from mail-pj1-x102a.google.com (mail-pj1-x102a.google.com [IPv6:2607:f8b0:4864:20::102a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE775C061786 for ; Mon, 11 Jan 2021 12:28:40 -0800 (PST) Received: by mail-pj1-x102a.google.com with SMTP id y12so236619pji.1 for ; Mon, 11 Jan 2021 12:28:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to; bh=iI1rIqMfwu1P4fzKj9/kRKSVEqcKsOkLrborReGYEMY=; b=n//tBuPfufjrPGNJXimcbOspw3o6JHeeJgul4/wExnnP7yEohCopxZJdpmS/N3xGs1 jC12nWIQusxHhtJaHdbXXugkwhS25diUWmISXfKnFmqbWTcm5Ybdvgc9ngrbkYGmFn+3 aznnz9kqMDwRIitTKgPuRdQNyWzpWHYJl/s2Nl8MPUVV3A3RrBtUQXQqjW5LieB67Ysq 8qYGk7jD76Qmpe6o9nIoysK/O6Ct94Gr6NNbTsL7kfWMQUXzxeHWRDaDQmjmuMGR/7dU J6MQB6BauelnswIQQax5lnYo+P2d1CntVXjxAo5bQsp3DFsWGm2gGjFe3NAwPYX2s3oB 3ikw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to; bh=iI1rIqMfwu1P4fzKj9/kRKSVEqcKsOkLrborReGYEMY=; b=FxwCwrNnKWsDV4wRfQdzUK72T0wc9xM6tRseUswWVJP4snzo7HQ0hSKWLzd9Z9rb2x nhr6raAuk4Z++85XeYLX//O80Tu6luVEs/J2/HE6p2ofQBe8ObQUHvlru+F6x3J8P4qr bwTXjq8ErM5akAKFlF3RbCLotx+S1KmDgWYT6/Jmm8z8+dGAzVrJnWI2XvtdG1bgfCH7 xheJW1VG0JcuHLK7OZNtpCgQdbDwgBRckuX6ag2W2oMP3aYb3y179w5InWW2GrK8RrZZ 17MSq7yJLcYhoAJwXrU8S3Q1viuM6DYxi1OckGauWpUSSu63Y669O3gntMtb7bpKVEe8 iEMg== X-Gm-Message-State: AOAM530+CuxIWaj78bI1N1/s3f4u1G5DE82WlY7BglK7UcIEvbSEvsvB DW3A7zbV4umz3iScplQojL/qxA== X-Google-Smtp-Source: ABdhPJxLa4YAAAAxOU0c3cvwB++tHRjVUn4t6n6xS0vZyxzTZIdEn4q2B+D/klf5X3Ttp7TLsNfY2w== X-Received: by 2002:a17:902:ee11:b029:db:c0d6:581a with SMTP id z17-20020a170902ee11b02900dbc0d6581amr1069008plb.54.1610396920141; Mon, 11 Jan 2021 12:28:40 -0800 (PST) Received: from google.com ([2620:15c:f:10:1ea0:b8ff:fe73:50f5]) by smtp.gmail.com with ESMTPSA id w18sm471444pfj.120.2021.01.11.12.28.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Jan 2021 12:28:39 -0800 (PST) Date: Mon, 11 Jan 2021 12:28:32 -0800 From: Sean Christopherson To: Tom Lendacky Cc: Paolo Bonzini , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Borislav Petkov , Brijesh Singh Subject: Re: [PATCH 06/13] x86/sev: Rename global "sev_enabled" flag to "sev_guest" Message-ID: References: <20210109004714.1341275-1-seanjc@google.com> <20210109004714.1341275-7-seanjc@google.com> <5b3a5d5e-befe-8be2-bbc4-7e7a8ebbe316@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jan 11, 2021, Sean Christopherson wrote: > On Mon, Jan 11, 2021, Tom Lendacky wrote: > > On 1/11/21 10:02 AM, Tom Lendacky wrote: > > > On 1/8/21 6:47 PM, Sean Christopherson wrote: > > > > Use "guest" instead of "enabled" for the global "running as an SEV guest" > > > > flag to avoid confusion over whether "sev_enabled" refers to the guest or > > > > the host.  This will also allow KVM to usurp "sev_enabled" for its own > > > > purposes. > > > > > > > > No functional change intended. > > > > > > > > Signed-off-by: Sean Christopherson > > > > > > Acked-by: Tom Lendacky > > > > Ah, I tried building with CONFIG_KVM=y and CONFIG_KVM_AMD=y and got a build > > error: > > > > In file included from arch/x86/kvm/svm/svm.c:43: > > arch/x86/kvm/svm/svm.h:222:20: error: ‘sev_guest’ redeclared as different > > kind of symbol > > Dang, didn't consider that scenario, obviously. The irony of introducing a > conflict while trying to avoid conflicts... Even better than coming up with a new name, sev_enabled can be removed entirely as it's really just sev_active() stored in a separate bool.