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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A568C433EF for ; Fri, 12 Nov 2021 16:47:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4718C60F70 for ; Fri, 12 Nov 2021 16:47:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235373AbhKLQud (ORCPT ); Fri, 12 Nov 2021 11:50:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45278 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233776AbhKLQuc (ORCPT ); Fri, 12 Nov 2021 11:50:32 -0500 Received: from mail-pf1-x433.google.com (mail-pf1-x433.google.com [IPv6:2607:f8b0:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EC66FC061767 for ; Fri, 12 Nov 2021 08:47:41 -0800 (PST) Received: by mail-pf1-x433.google.com with SMTP id b68so8972444pfg.11 for ; Fri, 12 Nov 2021 08:47:41 -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=3rAF7X0X6/EMnU6+94v5BwiYzou8rEtKzMTAU/xLi9M=; b=eXlnDGE/KrB7BNIkkxQcMGueDxOwOcODdNpPMAhlIoYidCad09yQWTLFj+yulxFpgn Px1Ujn85BI2lclSL8i0FC8I7GbPOmtr/MBaularsTk7F33Hocj1Q0ceXwc9rvIBUEEa+ Kx5NokZ1rBZlN9S9Pc374yF/LbSvn/CGOYaga3kYnLa6zyT7q+SglORqFj+iHytg9ec3 TV5LPzmnEW5R3oWq74NOJdvMK2bj4KQI6n8DT65uULDtHwsF/smPLdqBoTLjzrGcX555 nT6xjDwur2o/5ORYrhYk2otO9QPB+h+YUH63HYa2Nib8DjZ6J2hLVgLhWYXhRQ6htTjp TXog== 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=3rAF7X0X6/EMnU6+94v5BwiYzou8rEtKzMTAU/xLi9M=; b=pv1Ss/dHcJCau+f0kzFpua6RIwFiwRHiyOd8u5IJmz9PoePWaD4aZVJPn/FrEULG17 Lj2lvP0oYxNRbVnNPUhSlHCQoHNAeHXUzbYSQj+g/AaMXu38+D6ApVqqEZ3Yl3njGWrX uh18S6fhGJ3OC4mihVpWZM/yMn0VHV1SB9d4DlU0qPAJybTm2v6ynnDRlQBeJcHzXCOQ 4hb4EecblKVPebMJchbtFwN4CSj99tHSxRaTbD4yJiCb0jQ+bungSnr3Nw5mnLH9Un+U jvQYdX+MqOjiVRYa5bLVQ2Ch/fdywlEwrzJaS3rEJdOvlk9LfoKJRvb3miVl5x7jObnb hu4Q== X-Gm-Message-State: AOAM531gDMhDQIzyt7cCGII/afMjzoKi1Us8QKRoZzxJRn6EGj2AuwT+ 3Wfe6jIA0IU7OzQgRzPKqnFM/w== X-Google-Smtp-Source: ABdhPJzgx1IAK301rj4zJBjuC3cCz0eNcw07dPNbYus/Wab1XodRTQxrfTPOuQTF41bh8C3kETNwkg== X-Received: by 2002:a05:6a00:130c:b0:4a2:6c4c:55d0 with SMTP id j12-20020a056a00130c00b004a26c4c55d0mr6706623pfu.5.1636735661245; Fri, 12 Nov 2021 08:47:41 -0800 (PST) Received: from google.com (157.214.185.35.bc.googleusercontent.com. [35.185.214.157]) by smtp.gmail.com with ESMTPSA id i13sm5081490pgr.22.2021.11.12.08.47.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Nov 2021 08:47:40 -0800 (PST) Date: Fri, 12 Nov 2021 16:47:37 +0000 From: Sean Christopherson To: Xiaoyao Li Cc: Paolo Bonzini , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , erdemaktas@google.com, Connor Kuehl , x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, isaku.yamahata@intel.com, Kai Huang Subject: Re: [PATCH 01/11] KVM: x86: Introduce vm_type to differentiate normal VMs from confidential VMs Message-ID: References: <20211112153733.2767561-1-xiaoyao.li@intel.com> <20211112153733.2767561-2-xiaoyao.li@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211112153733.2767561-2-xiaoyao.li@intel.com> Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Fri, Nov 12, 2021, Xiaoyao Li wrote: > From: Sean Christopherson > > Unlike normal VMs, confidential VMs (Intel TDX and AMD SEV-ES) don't > allow some operations (e.g., memory read/write, register state acces, etc). > > Introduce vm_type to track the type of the VM. Further, different policy > can be made based on vm_type. > > Define KVM_X86_NORMAL_VM for normal VM as default and define > KVM_X86_TDX_VM for Intel TDX VM. I still don't like the "normal" terminology, I would much prefer we use "auto" or "default". https://lkml.kernel.org/r/YQsjQ5aJokV1HZ8N@google.com