From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: [PATCH part5 0/7] Arrange hotpluggable memory as ZONE_MOVABLE. Date: Mon, 12 Aug 2013 14:28:06 -0700 Message-ID: <52095366.4020106@zytor.com> 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> <52092811.3020105@gmail.com> <20130812202029.GB8288@mtj.dyndns.org> <3908561D78D1C84285E8C5FCA982C28F31CB74A1@ORSMSX106.amr.corp.intel.com> <20130812205456.GC8288@mtj.dyndns.org> <3908561D78D1C84285E8C5FCA982C28F31CB7552@ORSMSX106.amr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: owner-linux-mm@kvack.org To: Yinghai Lu Cc: "Luck, Tony" , Tejun Heo , Tang Chen , Tang Chen , "Moore, Robert" , "Zheng, Lv" , "rjw@sisk.pl" , "lenb@kernel.org" , "tglx@linutronix.de" , "mingo@elte.hu" , "akpm@linux-foundation.org" , "trenn@suse.de" , "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" List-Id: linux-acpi@vger.kernel.org On 08/12/2013 02:25 PM, Yinghai Lu wrote: > On Mon, Aug 12, 2013 at 2:11 PM, Luck, Tony wrote: >>>> The only fly I see in the ointment here is the crazy fragmentation of physical >> >> Just an idle, slightly related, question. Will a 64-bit X86 kernel work if the physical load address is >4GB? > > Yes. for smp booting, will need some pages under 1M for trampoline AP. > Not just for SMP anymore, either. -hpa -- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx135.postini.com [74.125.245.135]) by kanga.kvack.org (Postfix) with SMTP id E75C66B0068 for ; Mon, 12 Aug 2013 17:28:44 -0400 (EDT) Message-ID: <52095366.4020106@zytor.com> Date: Mon, 12 Aug 2013 14:28:06 -0700 From: "H. Peter Anvin" 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> <52092811.3020105@gmail.com> <20130812202029.GB8288@mtj.dyndns.org> <3908561D78D1C84285E8C5FCA982C28F31CB74A1@ORSMSX106.amr.corp.intel.com> <20130812205456.GC8288@mtj.dyndns.org> <3908561D78D1C84285E8C5FCA982C28F31CB7552@ORSMSX106.amr.corp.intel.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Yinghai Lu Cc: "Luck, Tony" , Tejun Heo , Tang Chen , Tang Chen , "Moore, Robert" , "Zheng, Lv" , "rjw@sisk.pl" , "lenb@kernel.org" , "tglx@linutronix.de" , "mingo@elte.hu" , "akpm@linux-foundation.org" , "trenn@suse.de" , "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" On 08/12/2013 02:25 PM, Yinghai Lu wrote: > On Mon, Aug 12, 2013 at 2:11 PM, Luck, Tony wrote: >>>> The only fly I see in the ointment here is the crazy fragmentation of physical >> >> Just an idle, slightly related, question. Will a 64-bit X86 kernel work if the physical load address is >4GB? > > Yes. for smp booting, will need some pages under 1M for trampoline AP. > Not just for SMP anymore, either. -hpa -- 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