From bae775a4f43449e79622ed144118554ff780744a Mon Sep 17 00:00:00 2001 From: Kyösti Mälkki Date: Thu, 18 Dec 2014 10:36:33 +0200 Subject: arch/x86: Declare GDT symbols and move_gdt() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We relocate GDT to CBMEM, this can be done late in ramstage. Note: We currently do this for BSP CPU only. Change-Id: I626faaf22f846433f25ca2253d6a2a5230f50b6b Signed-off-by: Kyösti Mälkki Reviewed-on: http://review.coreboot.org/7858 Reviewed-by: Stefan Reinauer Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan --- src/include/cpu/x86/gdt.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 src/include/cpu/x86/gdt.h (limited to 'src/include/cpu') diff --git a/src/include/cpu/x86/gdt.h b/src/include/cpu/x86/gdt.h new file mode 100644 index 0000000000..260b158d1f --- /dev/null +++ b/src/include/cpu/x86/gdt.h @@ -0,0 +1,34 @@ +/* + * This file is part of the coreboot project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_X86_GDT +#define CPU_X86_GDT + +/* These symbols are defined in c_start.S. */ +extern char gdt[]; +extern char gdt_end[]; +extern char idtarg[]; + +/* These symbols are defined in secondary.S. */ +extern char _secondary_gdt_addr[]; +extern char _secondary_start[]; +extern char _secondary_start_end[]; + +/* Defined in src/arch/x86/boot/gdt.c */ +void move_gdt(void); + +#endif /* CPU_X86_GDT */ -- cgit v1.2.3