From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753426Ab2KUHSJ (ORCPT ); Wed, 21 Nov 2012 02:18:09 -0500 Received: from userp1040.oracle.com ([156.151.31.81]:42608 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752092Ab2KUHQc (ORCPT ); Wed, 21 Nov 2012 02:16:32 -0500 From: Yinghai Lu To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" Cc: "Eric W. Biederman" , linux-kernel@vger.kernel.org, Yinghai Lu , Matt Fleming Subject: [PATCH v3 01/12] x86, boot: move verify_cpu.S after 0x200 Date: Tue, 20 Nov 2012 23:15:59 -0800 Message-Id: <1353482170-10160-2-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.7.7 In-Reply-To: <1353482170-10160-1-git-send-email-yinghai@kernel.org> References: <1353482170-10160-1-git-send-email-yinghai@kernel.org> X-Source-IP: ucsinet21.oracle.com [156.151.31.93] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We are short of space before 0x200 that is entry for startup_64. And we can not change startup_64 to other value --- ABI ? We could move function verify_cpu down, and that could avoid extra code of jmp back and forth. Signed-off-by: Yinghai Lu Cc: Matt Fleming --- arch/x86/boot/compressed/head_64.S | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index 2c4b171..2c3cee4 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -182,8 +182,6 @@ no_longmode: hlt jmp 1b -#include "../../kernel/verify_cpu.S" - /* * Be careful here startup_64 needs to be at a predictable * address so I can export it in an ELF header. Bootloaders @@ -349,6 +347,9 @@ relocated: */ jmp *%rbp + .code32 +#include "../../kernel/verify_cpu.S" + .data gdt: .word gdt_end - gdt -- 1.7.7