From mboxrd@z Thu Jan 1 00:00:00 1970 From: Toshi Kani Subject: Re: [PATCH 0/8] x86, acpi: Move acpi_initrd_override() earlier. Date: Fri, 23 Aug 2013 12:29:03 -0600 Message-ID: <1377282543.10300.820.camel@misato.fc.hp.com> References: <20130821204041.GC2436@htj.dyndns.org> <1377124595.10300.594.camel@misato.fc.hp.com> <20130822033234.GA2413@htj.dyndns.org> <1377186729.10300.643.camel@misato.fc.hp.com> <20130822183130.GA3490@mtj.dyndns.org> <1377202292.10300.693.camel@misato.fc.hp.com> <20130822202158.GD3490@mtj.dyndns.org> <1377205598.10300.715.camel@misato.fc.hp.com> <20130822212111.GF3490@mtj.dyndns.org> <1377209861.10300.756.camel@misato.fc.hp.com> <20130823130440.GC10322@mtj.dyndns.org> <1377274448.10300.777.camel@misato.fc.hp.com> <521793BB.9080605@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Received: from g1t0029.austin.hp.com ([15.216.28.36]:45437 "EHLO g1t0029.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754157Ab3HWSag (ORCPT ); Fri, 23 Aug 2013 14:30:36 -0400 In-Reply-To: <521793BB.9080605@gmail.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Zhang Yanfei Cc: Tejun Heo , Tang Chen , konrad.wilk@oracle.com, robert.moore@intel.com, lv.zheng@intel.com, rjw@sisk.pl, lenb@kernel.org, tglx@linutronix.de, mingo@elte.hu, hpa@zytor.com, akpm@linux-foundation.org, trenn@suse.de, yinghai@kernel.org, jiang.liu@huawei.com, wency@cn.fujitsu.com, laijs@cn.fujitsu.com, isimatu.yasuaki@jp.fujitsu.com, izumi.taku@jp.fujitsu.com, mgorman@suse.de, minchan@kernel.org, mina86@mina86.com, gong.chen@linux.intel.com, vasilis.liaskovitis@profitbricks.com, lwoodman@redhat.com, riel@redhat.com, jweiner@redhat.com, prarit@redhat.com, zhangyanfei@cn.fujitsu.com, yanghy@cn.fujitsu.com, x86@kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-acpi@vger.kernel.org Hello Zhang, On Sat, 2013-08-24 at 00:54 +0800, Zhang Yanfei wrote: > > Tang, what do you think? Are you OK to try Tejun's suggestion as well? > > > > By saying TJ's suggestion, you mean, we will let memblock to control the > behaviour, that said, we will do early allocations near the kernel image > range before we get the SRAT info? Right. > If so, yeah, we have been working on this direction. Great! > By doing this, we may > have two main changes: > > 1. change some of memblock's APIs to make it have the ability to allocate > memory from low address. > 2. setup kernel page table down-top. Concretely, we first map the memory > just after the kernel image to the top, then, we map 0 - kernel image end. > > Do you guys think this is reasonable and acceptable? Have you also looked at Yinghai's comments below? http://www.spinics.net/lists/linux-mm/msg61362.html Thanks, -Toshi From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx161.postini.com [74.125.245.161]) by kanga.kvack.org (Postfix) with SMTP id 626FE6B0032 for ; Fri, 23 Aug 2013 14:30:36 -0400 (EDT) Message-ID: <1377282543.10300.820.camel@misato.fc.hp.com> Subject: Re: [PATCH 0/8] x86, acpi: Move acpi_initrd_override() earlier. From: Toshi Kani Date: Fri, 23 Aug 2013 12:29:03 -0600 In-Reply-To: <521793BB.9080605@gmail.com> References: <20130821204041.GC2436@htj.dyndns.org> <1377124595.10300.594.camel@misato.fc.hp.com> <20130822033234.GA2413@htj.dyndns.org> <1377186729.10300.643.camel@misato.fc.hp.com> <20130822183130.GA3490@mtj.dyndns.org> <1377202292.10300.693.camel@misato.fc.hp.com> <20130822202158.GD3490@mtj.dyndns.org> <1377205598.10300.715.camel@misato.fc.hp.com> <20130822212111.GF3490@mtj.dyndns.org> <1377209861.10300.756.camel@misato.fc.hp.com> <20130823130440.GC10322@mtj.dyndns.org> <1377274448.10300.777.camel@misato.fc.hp.com> <521793BB.9080605@gmail.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Zhang Yanfei Cc: Tejun Heo , Tang Chen , konrad.wilk@oracle.com, robert.moore@intel.com, lv.zheng@intel.com, rjw@sisk.pl, lenb@kernel.org, tglx@linutronix.de, mingo@elte.hu, hpa@zytor.com, akpm@linux-foundation.org, trenn@suse.de, yinghai@kernel.org, jiang.liu@huawei.com, wency@cn.fujitsu.com, laijs@cn.fujitsu.com, isimatu.yasuaki@jp.fujitsu.com, izumi.taku@jp.fujitsu.com, mgorman@suse.de, minchan@kernel.org, mina86@mina86.com, gong.chen@linux.intel.com, vasilis.liaskovitis@profitbricks.com, lwoodman@redhat.com, riel@redhat.com, jweiner@redhat.com, prarit@redhat.com, zhangyanfei@cn.fujitsu.com, yanghy@cn.fujitsu.com, x86@kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-acpi@vger.kernel.org Hello Zhang, On Sat, 2013-08-24 at 00:54 +0800, Zhang Yanfei wrote: > > Tang, what do you think? Are you OK to try Tejun's suggestion as well? > > > > By saying TJ's suggestion, you mean, we will let memblock to control the > behaviour, that said, we will do early allocations near the kernel image > range before we get the SRAT info? Right. > If so, yeah, we have been working on this direction. Great! > By doing this, we may > have two main changes: > > 1. change some of memblock's APIs to make it have the ability to allocate > memory from low address. > 2. setup kernel page table down-top. Concretely, we first map the memory > just after the kernel image to the top, then, we map 0 - kernel image end. > > Do you guys think this is reasonable and acceptable? Have you also looked at Yinghai's comments below? http://www.spinics.net/lists/linux-mm/msg61362.html Thanks, -Toshi -- 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