diff options
Diffstat (limited to 'i386/util/gdt.c')
-rw-r--r-- | i386/util/gdt.c | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/i386/util/gdt.c b/i386/util/gdt.c deleted file mode 100644 index 7bfa6aa..0000000 --- a/i386/util/gdt.c +++ /dev/null @@ -1,80 +0,0 @@ -/* - * Mach Operating System - * Copyright (c) 1991,1990 Carnegie Mellon University - * Copyright (c) 1991 IBM Corporation - * All Rights Reserved. - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, - * and that the name IBM not be used in advertising or publicity - * pertaining to distribution of the software without specific, written - * prior permission. - * - * CARNEGIE MELLON AND IBM ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. CARNEGIE MELLON AND IBM DISCLAIM ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie Mellon - * the rights to redistribute these changes. - */ - -#include "cpu.h" -#include "vm_param.h" - - -/* Initialize the 32-bit kernel code and data segment descriptors - to point to the base of the kernel linear space region. */ -gdt_desc_initializer(KERNEL_CS, - kvtolin(0), 0xffffffff, - ACC_PL_K|ACC_CODE_R, SZ_32); -gdt_desc_initializer(KERNEL_DS, - kvtolin(0), 0xffffffff, - ACC_PL_K|ACC_DATA_W, SZ_32); - -/* Initialize the 16-bit real-mode code and data segment descriptors. */ -gdt_desc_initializer(KERNEL_16_CS, - kvtolin(0), 0xffff, - ACC_PL_K|ACC_CODE_R, SZ_16); -gdt_desc_initializer(KERNEL_16_DS, - kvtolin(0), 0xffff, - ACC_PL_K|ACC_DATA_W, SZ_16); - -/* Initialize the linear-space data segment descriptor. */ -gdt_desc_initializer(LINEAR_CS, - 0, 0xffffffff, - ACC_PL_K|ACC_CODE_R, SZ_32); -gdt_desc_initializer(LINEAR_DS, - 0, 0xffffffff, - ACC_PL_K|ACC_DATA_W, SZ_32); - -/* Initialize the master LDT and TSS descriptors. */ -#ifdef ENABLE_KERNEL_LDT -gdt_desc_initializer(KERNEL_LDT, - kvtolin(&cpu->tables.ldt), sizeof(cpu->tables.ldt)-1, - ACC_PL_K|ACC_LDT, 0); -#endif -#ifdef ENABLE_KERNEL_TSS -gdt_desc_initializer(KERNEL_TSS, - kvtolin(&cpu->tables.tss), sizeof(cpu->tables.tss)-1, - ACC_PL_K|ACC_TSS, 0); -#endif - - -void cpu_gdt_init(struct cpu *cpu) -{ - /* Initialize all the selectors of the GDT. */ -#define gdt_sel(name) cpu_gdt_init_##name(cpu); -#include "gdt_sels.h" -#undef gdt_sel -} - |