Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759979Ab0GQNDh (ORCPT ); Sat, 17 Jul 2010 09:03:37 -0400 Received: from mail-iw0-f174.google.com ([209.85.214.174]:52139 "EHLO mail-iw0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753970Ab0GQNDf (ORCPT ); Sat, 17 Jul 2010 09:03:35 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=xxyKBro9fl4257gXj8su+zo+P5Rl1dDE8R7KnoGHqS2ue/GzVwxGVbX/xYnOpRtx/z tTVu9HkaXWvV22p6NXbpSmtjNEeBgSCMzJceQgsBzW37KYSajJ1j4Ze1rE4Dr5wOF0Ej ZQlcsRc23wqZXew/Rfrjv7yYW7uB+1nzcOOM0= From: Brian Gerst To: hpa@zytor.com Cc: x86@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/3] x86-64: Simplify loading initial_gs Date: Sat, 17 Jul 2010 09:03:28 -0400 Message-Id: <1279371808-24804-3-git-send-email-brgerst@gmail.com> X-Mailer: git-send-email 1.7.1.1 In-Reply-To: <1279371808-24804-1-git-send-email-brgerst@gmail.com> References: <1279371808-24804-1-git-send-email-brgerst@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 971 Lines: 31 Load initial_gs as two 32-bit values instead of splitting a 64-bit value. Signed-off-by: Brian Gerst --- arch/x86/kernel/head_64.S | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S index 3d1e6f1..239046b 100644 --- a/arch/x86/kernel/head_64.S +++ b/arch/x86/kernel/head_64.S @@ -234,9 +234,8 @@ ENTRY(secondary_startup_64) * init data section till per cpu areas are set up. */ movl $MSR_GS_BASE,%ecx - movq initial_gs(%rip),%rax - movq %rax,%rdx - shrq $32,%rdx + movl initial_gs(%rip),%eax + movl initial_gs+4(%rip),%edx wrmsr /* esi is pointer to real mode structure with interesting info. -- 1.7.1.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/