xref: /illumos-gate/usr/src/uts/intel/sys/segment.h (revision b4203d75)
17c478bd9Sstevel@tonic-gate /*
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37c478bd9Sstevel@tonic-gate  *
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57c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate  * with the License.
87c478bd9Sstevel@tonic-gate  *
97c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate  * and limitations under the License.
137c478bd9Sstevel@tonic-gate  *
147c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
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207c478bd9Sstevel@tonic-gate  * CDDL HEADER END
217c478bd9Sstevel@tonic-gate  */
227c478bd9Sstevel@tonic-gate /*
237c478bd9Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
247c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate  */
267c478bd9Sstevel@tonic-gate 
277c478bd9Sstevel@tonic-gate /*	Copyright (c) 1990, 1991 UNIX System Laboratories, Inc.	*/
287c478bd9Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T	*/
29*b4203d75SMarcel Telka /*	  All Rights Reserved	*/
307c478bd9Sstevel@tonic-gate 
317c478bd9Sstevel@tonic-gate #ifndef	_SYS_SEGMENT_H
327c478bd9Sstevel@tonic-gate #define	_SYS_SEGMENT_H
337c478bd9Sstevel@tonic-gate 
347c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
357c478bd9Sstevel@tonic-gate extern "C" {
367c478bd9Sstevel@tonic-gate #endif
377c478bd9Sstevel@tonic-gate 
387c478bd9Sstevel@tonic-gate /* access rights for data segments */
397c478bd9Sstevel@tonic-gate #define	UDATA_ACC1	0xF2 	/* present dpl=3 writable */
407c478bd9Sstevel@tonic-gate #define	DATA_ACC2	0xC	/* 4Kbyte gran. 4Gb limit avl=0 */
417c478bd9Sstevel@tonic-gate #define	DATA_ACC2_S	0x4	/* 1 byte gran., 32bit operands, avl=0 */
427c478bd9Sstevel@tonic-gate #define	UTEXT_ACC1	0xFA 	/* present dpl=3 readable */
437c478bd9Sstevel@tonic-gate #define	TEXT_ACC2	0xC	/* 4Kbyte gran., 32 bit operands avl=0 */
447c478bd9Sstevel@tonic-gate #define	TEXT_ACC2_S	0x4	/* 1 byte gran., 32 bit operands avl=0 */
457c478bd9Sstevel@tonic-gate #define	LDT_UACC1	0xE2	/* present dpl=3 type=ldt */
467c478bd9Sstevel@tonic-gate #define	LDT_ACC2	0x0	/* G=0 avl=0 */
477c478bd9Sstevel@tonic-gate #define	TGATE_UACC1	0xE5	/* present dpl=3 type=task gate		*/
487c478bd9Sstevel@tonic-gate #define	SEG_CONFORM	0X4	/* conforming bit in acc0007 */
497c478bd9Sstevel@tonic-gate 
507c478bd9Sstevel@tonic-gate #define	LDT_TYPE	0x2	/* type of segment is LDT */
517c478bd9Sstevel@tonic-gate 
527c478bd9Sstevel@tonic-gate 
537c478bd9Sstevel@tonic-gate /* access rights field for gates */
547c478bd9Sstevel@tonic-gate 
557c478bd9Sstevel@tonic-gate #define	GATE_UACC	0xE0		/* present and dpl = 3 */
567c478bd9Sstevel@tonic-gate #define	GATE_386CALL	0xC		/* 386 call gate */
577c478bd9Sstevel@tonic-gate 
587c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
597c478bd9Sstevel@tonic-gate }
607c478bd9Sstevel@tonic-gate #endif
617c478bd9Sstevel@tonic-gate 
627c478bd9Sstevel@tonic-gate #endif	/* _SYS_SEGMENT_H */
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