| segments.h (127914) | segments.h (168035) |
|---|---|
| 1/*- 2 * Copyright (c) 1989, 1990 William F. Jolitz 3 * Copyright (c) 1990 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * William Jolitz. 8 * --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from: @(#)segments.h 7.1 (Berkeley) 5/9/91 | 1/*- 2 * Copyright (c) 1989, 1990 William F. Jolitz 3 * Copyright (c) 1990 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * William Jolitz. 8 * --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from: @(#)segments.h 7.1 (Berkeley) 5/9/91 |
| 34 * $FreeBSD: head/sys/amd64/include/segments.h 127914 2004-04-05 21:29:41Z imp $ | 34 * $FreeBSD: head/sys/amd64/include/segments.h 168035 2007-03-30 00:06:21Z jkim $ |
| 35 */ 36 37#ifndef _MACHINE_SEGMENTS_H_ 38#define _MACHINE_SEGMENTS_H_ 39 40/* 41 * AMD64 Segmentation Data Structures and definitions 42 */ --- 152 unchanged lines hidden (view full) --- 195 * Entries in the Global Descriptor Table (GDT) 196 */ 197#define GNULL_SEL 0 /* Null Descriptor */ 198#define GCODE_SEL 1 /* Kernel Code Descriptor */ 199#define GDATA_SEL 2 /* Kernel Data Descriptor */ 200#define GUCODE32_SEL 3 /* User 32 bit code Descriptor */ 201#define GUDATA_SEL 4 /* User 32/64 bit Data Descriptor */ 202#define GUCODE_SEL 5 /* User 64 bit Code Descriptor */ | 35 */ 36 37#ifndef _MACHINE_SEGMENTS_H_ 38#define _MACHINE_SEGMENTS_H_ 39 40/* 41 * AMD64 Segmentation Data Structures and definitions 42 */ --- 152 unchanged lines hidden (view full) --- 195 * Entries in the Global Descriptor Table (GDT) 196 */ 197#define GNULL_SEL 0 /* Null Descriptor */ 198#define GCODE_SEL 1 /* Kernel Code Descriptor */ 199#define GDATA_SEL 2 /* Kernel Data Descriptor */ 200#define GUCODE32_SEL 3 /* User 32 bit code Descriptor */ 201#define GUDATA_SEL 4 /* User 32/64 bit Data Descriptor */ 202#define GUCODE_SEL 5 /* User 64 bit Code Descriptor */ |
| 203#define GPROC0_SEL 6 /* TSS for entering kernel etc */ | 203#define GPROC0_SEL 6 /* TSS for entering kernel etc */ |
| 204/* slot 6 is second half of GPROC0_SEL */ | 204/* slot 6 is second half of GPROC0_SEL */ |
| 205#define NGDT 8 | 205#define GUGS32_SEL 8 /* User 32 bit GS Descriptor */ 206#define NGDT 9 |
| 206 207#ifdef _KERNEL 208extern struct user_segment_descriptor gdt[]; 209extern struct soft_segment_descriptor gdt_segs[]; 210extern struct gate_descriptor *idt; 211extern struct region_descriptor r_gdt, r_idt; 212 213void lgdt(struct region_descriptor *rdp); 214void sdtossd(struct user_segment_descriptor *sdp, 215 struct soft_segment_descriptor *ssdp); 216void ssdtosd(struct soft_segment_descriptor *ssdp, 217 struct user_segment_descriptor *sdp); 218void ssdtosyssd(struct soft_segment_descriptor *ssdp, 219 struct system_segment_descriptor *sdp); 220#endif /* _KERNEL */ 221 222#endif /* !_MACHINE_SEGMENTS_H_ */ | 207 208#ifdef _KERNEL 209extern struct user_segment_descriptor gdt[]; 210extern struct soft_segment_descriptor gdt_segs[]; 211extern struct gate_descriptor *idt; 212extern struct region_descriptor r_gdt, r_idt; 213 214void lgdt(struct region_descriptor *rdp); 215void sdtossd(struct user_segment_descriptor *sdp, 216 struct soft_segment_descriptor *ssdp); 217void ssdtosd(struct soft_segment_descriptor *ssdp, 218 struct user_segment_descriptor *sdp); 219void ssdtosyssd(struct soft_segment_descriptor *ssdp, 220 struct system_segment_descriptor *sdp); 221#endif /* _KERNEL */ 222 223#endif /* !_MACHINE_SEGMENTS_H_ */ |