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The LXR Cross Referencer for SOS

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001 /* Copyright (C) 2004  David Decotigny
002    Copyright (C) 1999  Free Software Foundation, Inc.
003 
004    This program is free software; you can redistribute it and/or
005    modify it under the terms of the GNU General Public License
006    as published by the Free Software Foundation; either version 2
007    of the License, or (at your option) any later version.
008    
009    This program is distributed in the hope that it will be useful,
010    but WITHOUT ANY WARRANTY; without even the implied warranty of
011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
012    GNU General Public License for more details.
013    
014    You should have received a copy of the GNU General Public License
015    along with this program; if not, write to the Free Software
016    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
017    USA. 
018 */
019 #ifndef _SOS_GDT_H_
020 #define _SOS_GDT_H_
021 
022 /**
023  * @file gdt.h
024  *
025  * The routines that manage the GDT, the table that maps the virtual
026  * addresses (data/instructions, segment-relative), to "linear"
027  * addresses (ie paged-memory). In SOS/x86, we use a "flat" virtual
028  * space, ie the virtual and linear spaces are equivalent.
029  *
030  * @see Intel x86 doc vol 3, chapter 3
031  */
032 
033 #include <sos/errno.h>
034 
035 /**
036  * Configure the virtual space as a direct mapping to the linear
037  * address space (ie "flat" virtual space).
038  */
039 sos_ret_t sos_gdt_setup(void);
040 
041 #endif /* _SOS_GDT_H_ */

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