From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx104.postini.com [74.125.245.104]) by kanga.kvack.org (Postfix) with SMTP id A17266B0032 for ; Sun, 18 Aug 2013 23:08:46 -0400 (EDT) Message-ID: <52118BE6.8060903@cn.fujitsu.com> Date: Mon, 19 Aug 2013 11:07:18 +0800 From: Tang Chen MIME-Version: 1.0 Subject: Re: [PATCH part5 0/7] Arrange hotpluggable memory as ZONE_MOVABLE. References: <1375956979-31877-1-git-send-email-tangchen@cn.fujitsu.com> <20130812145016.GI15892@htj.dyndns.org> <5208FBBC.2080304@zytor.com> <20130812152343.GK15892@htj.dyndns.org> <52090D7F.6060600@gmail.com> <20130812164650.GN15892@htj.dyndns.org> <5209CEC1.8070908@cn.fujitsu.com> <520A02DE.1010908@cn.fujitsu.com> <520ADBBA.10501@cn.fujitsu.com> <1376593564.10300.446.camel@misato.fc.hp.com> <520D89A7.7060802@cn.fujitsu.com> In-Reply-To: Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: owner-linux-mm@kvack.org List-ID: To: Yinghai Lu Cc: "H. Peter Anvin" , Konrad Rzeszutek Wilk , Toshi Kani , Tejun Heo , Tang Chen , Bob Moore , Lv Zheng , "Rafael J. Wysocki" , Len Brown , Thomas Gleixner , Ingo Molnar , Andrew Morton , Thomas Renninger , Jiang Liu , Wen Congyang , Lai Jiangshan , Yasuaki Ishimatsu , Taku Izumi , Mel Gorman , Minchan Kim , "mina86@mina86.com" , "gong.chen@linux.intel.com" , Vasilis Liaskovitis , "lwoodman@redhat.com" , Rik van Riel , "jweiner@redhat.com" , Prarit Bhargava , Zhang Yanfei , "yanghy@cn.fujitsu.com" , the arch/x86 maintainers , "linux-doc@vger.kernel.org" , Linux Kernel Mailing List , Linux MM , ACPI Devel Maling List , "Luck, Tony (tony.luck@intel.com)" On 08/16/2013 12:21 PM, Yinghai Lu wrote: ...... >> By "put acpi_initrd_override in BRK", do you mean increase the BRK by >> default ? > > Peter, > > Do you agree on extending BRK 256k to put copied override acpi tables? > > then we can find and copy them early in > arch/x86/kernel/head64.c::x86_64_start_kernel() or > arch/x86/kernel/head_32.S. Hi Yinghai, If we use BRK to store acpi tables, we don't need to setup page tables. If we do acpi_initrd_override() in setup_arch(), after early_ioremap is available, we don't need to split it into find & copy. It would be much easier. Can you agree on doing acpi_initrd_override() in setup_arch() ? Is it too late for xen ? Thanks. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org