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 7BA5CC54EBE for ; Sat, 7 Jan 2023 00:39:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235686AbjAGAj0 (ORCPT ); Fri, 6 Jan 2023 19:39:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44174 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236975AbjAGAjI (ORCPT ); Fri, 6 Jan 2023 19:39:08 -0500 Received: from mail-pj1-x1030.google.com (mail-pj1-x1030.google.com [IPv6:2607:f8b0:4864:20::1030]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9E5D6F6A for ; Fri, 6 Jan 2023 16:38:27 -0800 (PST) Received: by mail-pj1-x1030.google.com with SMTP id h7-20020a17090aa88700b00225f3e4c992so6950805pjq.1 for ; Fri, 06 Jan 2023 16:38:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=2Az0qbuGhzUF6/c9xF1ibfH/zmAl5QFNFCQ09j3R1NM=; b=RUidCU79TX7LD2hTeNIuTZ73thDpc6w+rl1bOJzc/cjaokhtx2Y5TNGkKimSo8X42O AgkU1CyNspDUHy6vkL6UER5vdp2gS7Ifs+8W/DzLIj8H28317bqDXUo1FvOpY44y8BUG aa7j+oa5ym145t169Xg7dCuB54MWzffaRo69MkTTAU3/DNZv3eiJIpMPRSAwox1AAEb7 ViZao1eaQk4oN6zp4qIheuaswu14+f0W2fHdoP3v5v33pKn43jSs7IIi23JBrKW5f+IF Wr84J+jaDERmEN/KnT0QtK1WxV9cHR51vz2L4EyQK4c7BezQ+O5++BcdU+NFwNmsiApp HnNg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=2Az0qbuGhzUF6/c9xF1ibfH/zmAl5QFNFCQ09j3R1NM=; b=dwF4LT69dtZbZuj25C/gXcgvVj0AHIi/ySmIBQjGY3955LRBSbSA5hWz59tlB1Sr87 2lJ45ud16xjy+ZbbQhYIQrbDjQRFNVcbJFW5iQRVbxV4EqAVsnr9awq48pNVc9MGeU7V UPdw0lZy3Ro7LQtOQjPlmsyoyLNlBr5ZL5ioKJgAPf3HIPcFlxW2fPxOyd1dL3sEv+gP RU85QzcoEWXbv4l+R9Q+Wlwpj5u3cOA1UTf8LceusUOhlHT2vWG4Eta8me7dZYXqwVpB dFLNoAiO7FCp6qrWGHJQTTraOZ0UXRwRO49hfFqNBFcwKivCFTh5TNxaeMjV6fjh2fSy sUtQ== X-Gm-Message-State: AFqh2koxZEVd+AArKFeyhN+VrI7KD+G+8SUdC/KC6sIbJ5A0X8typmK1 U+/RFw/fz+oT9Le3U+0sRmGt/A== X-Google-Smtp-Source: AMrXdXtNB0pR8jILzoi99KJKhdNRnff/7CQiMql1LHKfz/k9+UarJtp9aF2Xp6PSm2u9sEdk1ZdPCA== X-Received: by 2002:a17:90a:98c:b0:226:ec1e:d0ff with SMTP id 12-20020a17090a098c00b00226ec1ed0ffmr56531pjo.0.1673051907063; Fri, 06 Jan 2023 16:38:27 -0800 (PST) Received: from google.com (7.104.168.34.bc.googleusercontent.com. [34.168.104.7]) by smtp.gmail.com with ESMTPSA id gl1-20020a17090b120100b0020b2082e0acsm1474207pjb.0.2023.01.06.16.38.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Jan 2023 16:38:26 -0800 (PST) Date: Sat, 7 Jan 2023 00:38:23 +0000 From: Sean Christopherson To: Robert Hoo Cc: pbonzini@redhat.com, kirill.shutemov@linux.intel.com, kvm@vger.kernel.org, Jingqi Liu Subject: Re: [PATCH v3 2/9] KVM: x86: Add CR4.LAM_SUP in guest owned bits Message-ID: References: <20221209044557.1496580-1-robert.hu@linux.intel.com> <20221209044557.1496580-3-robert.hu@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221209044557.1496580-3-robert.hu@linux.intel.com> Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Fri, Dec 09, 2022, Robert Hoo wrote: > If LAM enabled, CR4.LAM_SUP is owned by guest; otherwise, reserved. Why is it passed through to the guest?