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Annotation of Gnu-Mach/i386/util/tss.c, revision 1.1.1.1

1.1       root        1: /* 
                      2:  * Copyright (c) 1995-1994 The University of Utah and
                      3:  * the Computer Systems Laboratory at the University of Utah (CSL).
                      4:  * All rights reserved.
                      5:  *
                      6:  * Permission to use, copy, modify and distribute this software is hereby
                      7:  * granted provided that (1) source code retains these copyright, permission,
                      8:  * and disclaimer notices, and (2) redistributions including binaries
                      9:  * reproduce the notices in supporting documentation, and (3) all advertising
                     10:  * materials mentioning features or use of this software display the following
                     11:  * acknowledgement: ``This product includes software developed by the
                     12:  * Computer Systems Laboratory at the University of Utah.''
                     13:  *
                     14:  * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
                     15:  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
                     16:  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
                     17:  *
                     18:  * CSL requests users of this software to return to [email protected] any
                     19:  * improvements that they make and grant CSL redistribution rights.
                     20:  *
                     21:  *      Author: Bryan Ford, University of Utah CSL
                     22:  */
                     23: 
                     24: #include <mach/machine/tss.h>
                     25: #include <mach/machine/proc_reg.h>
                     26: 
                     27: #include "cpu.h"
                     28: 
                     29: #ifdef ENABLE_KERNEL_TSS
                     30: 
                     31: void
                     32: cpu_tss_init(struct cpu *cpu)
                     33: {
                     34:        /* Only initialize once.  */
                     35:        if (!cpu->tables.tss.ss0)
                     36:        {
                     37:                /* Initialize the master TSS.  */
                     38:                cpu->tables.tss.ss0 = KERNEL_DS;
                     39:                cpu->tables.tss.esp0 = get_esp(); /* only temporary */
                     40:                cpu->tables.tss.io_bit_map_offset = sizeof(cpu->tables.tss);
                     41:        }
                     42: }
                     43: 
                     44: #endif
                     45: 

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