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
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