diff options
Diffstat (limited to 'i386/util/cpu_tables_load.c')
| -rw-r--r-- | i386/util/cpu_tables_load.c | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/i386/util/cpu_tables_load.c b/i386/util/cpu_tables_load.c deleted file mode 100644 index 2237b33..0000000 --- a/i386/util/cpu_tables_load.c +++ /dev/null @@ -1,70 +0,0 @@ -/* - * Copyright (c) 1995-1994 The University of Utah and - * the Computer Systems Laboratory at the University of Utah (CSL). - * All rights reserved. - * - * Permission to use, copy, modify and distribute this software is hereby - * granted provided that (1) source code retains these copyright, permission, - * and disclaimer notices, and (2) redistributions including binaries - * reproduce the notices in supporting documentation, and (3) all advertising - * materials mentioning features or use of this software display the following - * acknowledgement: ``This product includes software developed by the - * Computer Systems Laboratory at the University of Utah.'' - * - * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS - * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF - * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * CSL requests users of this software to return to csl-dist@cs.utah.edu any - * improvements that they make and grant CSL redistribution rights. - * - * Author: Bryan Ford, University of Utah CSL - */ - -#include <mach/machine/proc_reg.h> - -#include "cpu.h" -#include "vm_param.h" - -void cpu_tables_load(struct cpu *cpu) -{ - struct pseudo_descriptor pdesc; - - /* Load the final GDT. - If paging is now on, - then this will point the processor to the GDT - at its new linear address in the kernel linear space. */ - pdesc.limit = sizeof(cpu->tables.gdt)-1; - pdesc.linear_base = kvtolin(&cpu->tables.gdt); - set_gdt(&pdesc); - - /* Reload all the segment registers from the new GDT. */ - asm volatile(" - ljmp %0,$1f - 1: - " : : "i" (KERNEL_CS)); - set_ds(KERNEL_DS); - set_es(KERNEL_DS); - set_fs(0); - set_gs(0); - set_ss(KERNEL_DS); - - /* Load the IDT. */ - pdesc.limit = sizeof(cpu[0].tables.idt)-1; - pdesc.linear_base = kvtolin(&cpu->tables.idt); - set_idt(&pdesc); - -#ifdef DEFAULT_LDT - /* Load the default LDT. */ - set_ldt(DEFAULT_LDT); -#endif - -#ifdef DEFAULT_TSS - /* Make sure it isn't marked busy. */ - cpu->tables.gdt[DEFAULT_TSS_IDX].access &= ~ACC_TSS_BUSY; - - /* Load the default TSS. */ - set_tr(DEFAULT_TSS); -#endif -} - |