From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Sebastian Herbszt" Subject: Re: [PATCH] kvm: bios: Put AP boot up code to 0x1000 Date: Thu, 31 Jul 2008 23:15:11 +0200 Message-ID: <034601c8f352$b6e073d0$0201a8c0@zeug> References: <200807311043.20880.sheng.yang@intel.com> Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset="UTF-8"; reply-type=original Content-Transfer-Encoding: 7bit Cc: To: "Yang, Sheng" , "Avi Kivity" Return-path: Received: from mail.gmx.net ([213.165.64.20]:47337 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752527AbYGaVQn (ORCPT ); Thu, 31 Jul 2008 17:16:43 -0400 Sender: kvm-owner@vger.kernel.org List-ID: Yang, Sheng wrote: > Rather than 0x10000, which can be overrided by userspace program like > grub. Could you please explain this problem? If i don't misunderstand this smp_ap_boot_code_start from rombios32start.S gets copied to AP_BOOT_CODE and then there is a broadcast INIT and SIPI. After the code is run it's not used anymore so there should be no need to care where it's located. - Sebastian