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Annotation of sys/arch/amd64/include/gdt.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: gdt.h,v 1.2 2004/05/20 21:06:46 nordin Exp $  */
                      2: /*     $NetBSD: gdt.h,v 1.1 2003/04/26 18:39:40 fvdl Exp $     */
                      3:
                      4: /*-
                      5:  * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
                      6:  * All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to The NetBSD Foundation
                      9:  * by John T. Kohl and Charles M. Hannum.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
                     19:  * 3. All advertising materials mentioning features or use of this software
                     20:  *    must display the following acknowledgement:
                     21:  *        This product includes software developed by the NetBSD
                     22:  *        Foundation, Inc. and its contributors.
                     23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     24:  *    contributors may be used to endorse or promote products derived
                     25:  *    from this software without specific prior written permission.
                     26:  *
                     27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     37:  * POSSIBILITY OF SUCH DAMAGE.
                     38:  */
                     39:
                     40: #ifndef _LOCORE
                     41: struct proc;
                     42: struct pmap;
                     43:
                     44: void gdt_init(void);
                     45: void gdt_init_cpu(struct cpu_info *);
                     46: void gdt_reload_cpu(struct cpu_info *);
                     47: void gdt_alloc_cpu(struct cpu_info *);
                     48:
                     49: int tss_alloc(struct pcb *);
                     50: void tss_free(int);
                     51:
                     52: void ldt_alloc(struct pmap *, char *, size_t);
                     53: void ldt_free(struct pmap *);
                     54:
                     55: void set_mem_gdt(struct mem_segment_descriptor *, void *, size_t,
                     56:                 int, int, int, int, int);
                     57: void set_sys_gdt(struct sys_segment_descriptor *, void *, size_t, int, int,
                     58:                 int);
                     59: #endif
                     60:
                     61: /* MINGDTSIZ must be a multiple of PAGE_SIZE or gdt_grow breaks */
                     62: #define MINGDTSIZ       PAGE_SIZE
                     63: #define MAXGDTSIZ       65536