From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from terminus.zytor.com ([192.83.249.54]:49718 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757423AbXGJDUI (ORCPT ); Mon, 9 Jul 2007 23:20:08 -0400 From: "H. Peter Anvin" Subject: [x86 setup 12/33] x86-64: add symbolic constants for the boot segment selectors Date: Mon, 9 Jul 2007 19:51:51 -0700 Message-Id: <11840371953778-git-send-email-hpa@zytor.com> In-Reply-To: <11840370903975-git-send-email-hpa@zytor.com> References: <11840359321823-git-send-email-hpa@zytor.com> <11840360383913-git-send-email-hpa@zytor.com> <11840361432207-git-send-email-hpa@zytor.com> <11840362483663-git-send-email-hpa@zytor.com> <11840363531039-git-send-email-hpa@zytor.com> <11840364593068-git-send-email-hpa@zytor.com> <1184036564610-git-send-email-hpa@zytor.com> <11840366692770-git-send-email-hpa@zytor.com> <11840367741994-git-send-email-hpa@zytor.com> <11840368791603-git-send-email-hpa@zytor.com> <11840369841576-git-send-email-hpa@zytor.com> <11840370903975-git-send-email-hpa@zytor.com> Message-Id: In-Reply-To: <2034f71d414def30de582fb59573295cadbdabb4.1184032748.git.hpa@zytor.com> References: <2034f71d414def30de582fb59573295cadbdabb4.1184032748.git.hpa@zytor.com> Sender: linux-arch-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, andi@firstfloor.org, akpm@linux-foundation.org Cc: "H. Peter Anvin" List-ID: From: H. Peter Anvin Add symbolic constants for the segment selectors/GDT slots used by the setup code, for consistency with i386. Signed-off-by: H. Peter Anvin --- include/asm-x86_64/segment.h | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/include/asm-x86_64/segment.h b/include/asm-x86_64/segment.h index adf2bf1..04b8ab2 100644 --- a/include/asm-x86_64/segment.h +++ b/include/asm-x86_64/segment.h @@ -3,6 +3,14 @@ #include +/* Simple and small GDT entries for booting only */ + +#define GDT_ENTRY_BOOT_CS 2 +#define __BOOT_CS (GDT_ENTRY_BOOT_CS * 8) + +#define GDT_ENTRY_BOOT_DS (GDT_ENTRY_BOOT_CS + 1) +#define __BOOT_DS (GDT_ENTRY_BOOT_DS * 8) + #define __KERNEL_CS 0x10 #define __KERNEL_DS 0x18 -- 1.5.2.2