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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 402B0C433EF for ; Wed, 5 Jan 2022 17:46:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242507AbiAERql (ORCPT ); Wed, 5 Jan 2022 12:46:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59192 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242491AbiAERqj (ORCPT ); Wed, 5 Jan 2022 12:46:39 -0500 Received: from mail-pg1-x52b.google.com (mail-pg1-x52b.google.com [IPv6:2607:f8b0:4864:20::52b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4BD48C061201 for ; Wed, 5 Jan 2022 09:46:39 -0800 (PST) Received: by mail-pg1-x52b.google.com with SMTP id f8so26069930pgf.8 for ; Wed, 05 Jan 2022 09:46:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=kukafVx7055r8OcVvqLzxD7DUbrJSCUpCeX5KLtoe+4=; b=M22wNw8Ag6nNk/CCBGok616/uNIatExoP5zvfwTiJeJtGC2X3te82k04ifGULNQ3dp IZ4GhWDyehtar1ZxQFtOxwSG8KAlWvmeXwjL6IY8Gb8Mn8eME+l2Hyulw+6BxhXt42W7 +qejfmnhDbh0fUwK+gbY0pixmm2l+xJpl25CMXciNAtSMgkp1tukQUcbPhy7scSIgWD2 SQS/T21VRKmUgxTk9w9vC1fmO43KqNuVNk2I+ZJHRW52d/TnCNw/g/tcxktjrfUTFoIi 7XfxeMEqeMCa1YRMk7r3X25peeefoYjMqrKApr5ZDbe8NPtESx0BhWHg+/d+qjnEKxbL IGOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=kukafVx7055r8OcVvqLzxD7DUbrJSCUpCeX5KLtoe+4=; b=P0Tgb0cnMpN/mhw+L6Rdiu1waCxCKMrj591aNOUolPa1ys4IIWBzDgP5Z9h2z0tYtR udCFw+ZNkU9cZIZ6C4BLt5/ry2Cr0a/YowFDQS1ad08l5xRT5mD6wbWvrXKQNc4h6FJ9 0yCGo97QkTh3a8VjYNIAXctc0k6gniHLaj/KHU/duM7HocBT5tlI5z5/tqqkAEeCS/CQ Dq9TeH1fL5dIIKQJzN3qtiE4Ukgg+c1NsQ87lpRQTmWPrh1vqrVpyMOvOEbmK9xb65FP AiIppvyzNEqEFvM7a4sbZUDmp1Y9xSXYCN8CJpDp+im70Cxg5ocy2oQ69Wnbg0oJsJp6 XlCA== X-Gm-Message-State: AOAM531PH3MVBCpRx5/ztYryK5FACcwbrI2UQyFrPAqSKZJfSuJLaY60 HSS5Vp6u6zwEUEUcn7WGIqk62w== X-Google-Smtp-Source: ABdhPJyFwjYQf5hPBRwiSxtXmUuk3gBK75txy6WOHVYaJF2EbPU3M40gOP5ibeGVz1vFJzTc/ztwbg== X-Received: by 2002:aa7:88ce:0:b0:4ba:efec:39e0 with SMTP id k14-20020aa788ce000000b004baefec39e0mr56680934pff.80.1641404798687; Wed, 05 Jan 2022 09:46:38 -0800 (PST) Received: from google.com (157.214.185.35.bc.googleusercontent.com. [35.185.214.157]) by smtp.gmail.com with ESMTPSA id l2sm45836425pfu.13.2022.01.05.09.46.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Jan 2022 09:46:38 -0800 (PST) Date: Wed, 5 Jan 2022 17:46:34 +0000 From: Sean Christopherson To: Maxim Levitsky Cc: kvm@vger.kernel.org, Jim Mattson , Thomas Gleixner , Joerg Roedel , "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , Vitaly Kuznetsov , Borislav Petkov , linux-kernel@vger.kernel.org, Paolo Bonzini , Dave Hansen , "H. Peter Anvin" , Wanpeng Li , Ingo Molnar Subject: Re: [PATCH v2 2/5] KVM: SVM: allow to force AVIC to be enabled Message-ID: References: <20211213104634.199141-1-mlevitsk@redhat.com> <20211213104634.199141-3-mlevitsk@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 05, 2022, Maxim Levitsky wrote: > On Tue, 2022-01-04 at 22:25 +0000, Sean Christopherson wrote: > > This is all more than a bit terrifying, though I can see the usefuless for a > > developer. At the very least, this should taint the kernel. This should also > > probably be buried behind a Kconfig that is itself buried behind EXPERT. > > > I used 'module_param_unsafe' which does taint the kernel. Ah, neat, TIL. Thanks!