Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp3732189imu; Sun, 11 Nov 2018 22:37:43 -0800 (PST) X-Google-Smtp-Source: AJdET5f+E6BkPOU/jhB79uNJ/CYo2qKgML/DJZ1f5aMQparZLudyeO6zvJUTaKGBXsHTRiA2XVWG X-Received: by 2002:a63:a552:: with SMTP id r18mr16325142pgu.176.1542004663495; Sun, 11 Nov 2018 22:37:43 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1542004663; cv=none; d=google.com; s=arc-20160816; b=YBnXdOxQr2+S1rL2pBluDo+ORCb9sUUnvWhMzEALSz9AZD5pG2Oa4VN6CY/fvJuKWm 3C2w3/iqFBdsKRuYE+epgcHnwJRiR0ac3Qjqj5+sYcShitIV19PS/UovT48wtRS6hUDW dlZUvWOv5mzLDISmlYa5xMf2I/yc5PDVTCJrY3r9JqOcHdDOS+ej0s15AseCp75LXplz TGzaf6uTtPgQyRr5YbrCsMOdJErzyAV/skv7zXceK5Z+UMSrKwijtaEq9XfiiZg2TroD PEbgmEDdNw9ZqwrG1/l2waiWb4EnTn+an23z9XTrlHpL5OdHEQAGzNoLRVgf/EpD4hk4 v9hQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:cc:to:subject; bh=LHJZChdzBQ1ng1iUw3kvhPgCbNQmToG8zoJOHyULvHQ=; b=szm9PeSNWFws2PzEQh6oCypXhCYANYdbt4CZEcUWuIjoUUu3jzMwvVUxqC0+gKfEPb PmLqxDLkQGpdNulJn3d18ve6giugbZou9RTItgOyMvdhl8EBthSP0DzxkcSiklF/A/sO C5hYeCtiF6p34q54d+8p3GJerP+qoZJlI7J3tv6sCJdt8jNOkdHo+L0oDjfT6pgECJ+1 8VpVbxZM4JpI5KkV0ve9VpIHOnKlRGj3fVOswqcmCsihOWReu8+0Kgc6J27pGYKcDopN Fr75Rd3yEnmkHtEFBGviDNi0O5P2lb//iaUbo8Yec7wEg/T9C783NO5c6j3D/QGShio9 xP+A== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id a4-v6si20415313pll.50.2018.11.11.22.37.21; Sun, 11 Nov 2018 22:37:43 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731664AbeKLQ2v (ORCPT + 99 others); Mon, 12 Nov 2018 11:28:51 -0500 Received: from terminus.zytor.com ([198.137.202.136]:54781 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728224AbeKLQ2v (ORCPT ); Mon, 12 Nov 2018 11:28:51 -0500 Received: from carbon-x1.hos.anvin.org (c-24-5-245-234.hsd1.ca.comcast.net [24.5.245.234] (may be forged)) (authenticated bits=0) by mail.zytor.com (8.15.2/8.15.2) with ESMTPSA id wAC6aWGX3556589 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO); Sun, 11 Nov 2018 22:36:33 -0800 Subject: Re: [Qemu-devel] [RFC/PoC PATCH 1/3] i386: set initrd_max to 4G - 1 to allow up to 4G initrd To: Ingo Molnar Cc: Li Zhijian , Juergen Gross , Li Zhijian , Peter Maydell , x86@kernel.org, bp@alien8.de, mingo@redhat.com, tglx@linutronix.de, QEMU Developers , Philip Li , linux-kernel@vger.kernel.org, Linus Torvalds , Peter Zijlstra , Kees Cook References: <1541674784-25936-2-git-send-email-lizhijian@cn.fujitsu.com> <20181109072015.GA86700@gmail.com> <38905d35-29af-b522-1629-b13e98a47a42@intel.com> <20181112045624.GA28219@gmail.com> <20181112061940.GA61749@gmail.com> From: "H. Peter Anvin" Message-ID: <766e1f84-b8c0-db95-45d3-e624c8d61519@zytor.com> Date: Sun, 11 Nov 2018 22:36:27 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.0 MIME-Version: 1.0 In-Reply-To: <20181112061940.GA61749@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/11/18 10:19 PM, Ingo Molnar wrote: > > I might be a bit dense early in the morning, but could you elaborate? > What do you mean by mapping all data areas? > Heh. I need to pack for LPC and get some sleep before my flight lest I'll be denser than depleted uranium; I'll write an explanation tomorrow. -hpa