segments.h revision 1.3 1 1.3 fvdl /* $NetBSD: segments.h,v 1.3 2003/10/13 18:40:16 fvdl Exp $ */
2 1.2 agc
3 1.2 agc /*-
4 1.2 agc * Copyright (c) 1990 The Regents of the University of California.
5 1.2 agc * All rights reserved.
6 1.2 agc *
7 1.2 agc * This code is derived from software contributed to Berkeley by
8 1.2 agc * William Jolitz.
9 1.2 agc *
10 1.2 agc * Redistribution and use in source and binary forms, with or without
11 1.2 agc * modification, are permitted provided that the following conditions
12 1.2 agc * are met:
13 1.2 agc * 1. Redistributions of source code must retain the above copyright
14 1.2 agc * notice, this list of conditions and the following disclaimer.
15 1.2 agc * 2. Redistributions in binary form must reproduce the above copyright
16 1.2 agc * notice, this list of conditions and the following disclaimer in the
17 1.2 agc * documentation and/or other materials provided with the distribution.
18 1.2 agc * 3. Neither the name of the University nor the names of its contributors
19 1.2 agc * may be used to endorse or promote products derived from this software
20 1.2 agc * without specific prior written permission.
21 1.2 agc *
22 1.2 agc * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 1.2 agc * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 1.2 agc * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 1.2 agc * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 1.2 agc * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 1.2 agc * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 1.2 agc * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 1.2 agc * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 1.2 agc * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 1.2 agc * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 1.2 agc * SUCH DAMAGE.
33 1.2 agc *
34 1.2 agc * @(#)segments.h 7.1 (Berkeley) 5/9/91
35 1.2 agc */
36 1.1 fvdl
37 1.1 fvdl /*-
38 1.1 fvdl * Copyright (c) 1995, 1997
39 1.1 fvdl * Charles M. Hannum. All rights reserved.
40 1.1 fvdl * Copyright (c) 1989, 1990 William F. Jolitz
41 1.1 fvdl *
42 1.1 fvdl * This code is derived from software contributed to Berkeley by
43 1.1 fvdl * William Jolitz.
44 1.1 fvdl *
45 1.1 fvdl * Redistribution and use in source and binary forms, with or without
46 1.1 fvdl * modification, are permitted provided that the following conditions
47 1.1 fvdl * are met:
48 1.1 fvdl * 1. Redistributions of source code must retain the above copyright
49 1.1 fvdl * notice, this list of conditions and the following disclaimer.
50 1.1 fvdl * 2. Redistributions in binary form must reproduce the above copyright
51 1.1 fvdl * notice, this list of conditions and the following disclaimer in the
52 1.1 fvdl * documentation and/or other materials provided with the distribution.
53 1.1 fvdl * 3. All advertising materials mentioning features or use of this software
54 1.1 fvdl * must display the following acknowledgement:
55 1.1 fvdl * This product includes software developed by the University of
56 1.1 fvdl * California, Berkeley and its contributors.
57 1.1 fvdl * 4. Neither the name of the University nor the names of its contributors
58 1.1 fvdl * may be used to endorse or promote products derived from this software
59 1.1 fvdl * without specific prior written permission.
60 1.1 fvdl *
61 1.1 fvdl * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
62 1.1 fvdl * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
63 1.1 fvdl * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
64 1.1 fvdl * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
65 1.1 fvdl * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
66 1.1 fvdl * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
67 1.1 fvdl * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
68 1.1 fvdl * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
69 1.1 fvdl * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
70 1.1 fvdl * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
71 1.1 fvdl * SUCH DAMAGE.
72 1.1 fvdl *
73 1.1 fvdl * @(#)segments.h 7.1 (Berkeley) 5/9/91
74 1.1 fvdl */
75 1.1 fvdl
76 1.1 fvdl /*
77 1.1 fvdl * Adapted for NetBSD/amd64 by fvdl (at) wasabisystems.com.
78 1.1 fvdl */
79 1.1 fvdl
80 1.1 fvdl /*
81 1.1 fvdl * 386 Segmentation Data Structures and definitions
82 1.1 fvdl * William F. Jolitz (william (at) ernie.berkeley.edu) 6/20/1989
83 1.1 fvdl */
84 1.1 fvdl
85 1.1 fvdl #ifndef _AMD64_SEGMENTS_H_
86 1.1 fvdl #define _AMD64_SEGMENTS_H_
87 1.1 fvdl
88 1.1 fvdl /*
89 1.1 fvdl * Selectors
90 1.1 fvdl */
91 1.1 fvdl
92 1.1 fvdl #define ISPL(s) ((s) & SEL_RPL) /* what is the priority level of a selector */
93 1.1 fvdl #define SEL_KPL 0 /* kernel privilege level */
94 1.1 fvdl #define SEL_UPL 3 /* user privilege level */
95 1.1 fvdl #define SEL_RPL 3 /* requester's privilege level mask */
96 1.1 fvdl #define ISLDT(s) ((s) & SEL_LDT) /* is it local or global */
97 1.1 fvdl #define SEL_LDT 4 /* local descriptor table */
98 1.1 fvdl
99 1.1 fvdl /* Dynamically allocated TSSs and LDTs start (byte offset) */
100 1.1 fvdl #define SYSSEL_START (NGDT_MEM << 3)
101 1.1 fvdl #define DYNSEL_START (SYSSEL_START + (NGDT_SYS << 4))
102 1.1 fvdl
103 1.1 fvdl /*
104 1.1 fvdl * These define the index not from the start of the GDT, but from
105 1.1 fvdl * the part of the GDT that they're allocated from.
106 1.1 fvdl * First NGDT_MEM entries are 8-byte descriptors for CS and DS.
107 1.1 fvdl * Next NGDT_SYS entries are 16-byte descriptors defining LDTs.
108 1.1 fvdl *
109 1.1 fvdl * The rest is 16-byte descriptors for TSS and LDT.
110 1.1 fvdl */
111 1.1 fvdl
112 1.1 fvdl #define IDXSEL(s) (((s) >> 3) & 0x1fff)
113 1.1 fvdl #define IDXDYNSEL(s) ((((s) & ~SEL_RPL) - DYNSEL_START) >> 4)
114 1.1 fvdl
115 1.1 fvdl #define GSEL(s,r) (((s) << 3) | r)
116 1.1 fvdl #define GSYSSEL(s,r) ((((s) << 4) + SYSSEL_START) | r)
117 1.1 fvdl #define GDYNSEL(s,r) ((((s) << 4) + DYNSEL_START) | r | SEL_KPL)
118 1.1 fvdl
119 1.1 fvdl #define LSEL(s,r) ((s) | r | SEL_LDT)
120 1.1 fvdl
121 1.1 fvdl #define USERMODE(c, f) (ISPL(c) == SEL_UPL)
122 1.1 fvdl #define KERNELMODE(c, f) (ISPL(c) == SEL_KPL)
123 1.1 fvdl
124 1.1 fvdl #ifndef _LOCORE
125 1.1 fvdl
126 1.1 fvdl /*
127 1.1 fvdl * Memory and System segment descriptors
128 1.1 fvdl */
129 1.1 fvdl
130 1.1 fvdl /*
131 1.1 fvdl * Below is used for TSS and LDT.
132 1.1 fvdl */
133 1.1 fvdl struct sys_segment_descriptor {
134 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t sd_lolimit:16;/* segment extent (lsb) */
135 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t sd_lobase:24;/* segment base address (lsb) */
136 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t sd_type:5; /* segment type */
137 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t sd_dpl:2; /* segment descriptor priority level */
138 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t sd_p:1; /* segment descriptor present */
139 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t sd_hilimit:4;/* segment extent (msb) */
140 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t sd_xx1:3; /* avl, long and def32 (not used) */
141 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t sd_gran:1; /* limit granularity (byte/page) */
142 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t sd_hibase:40;/* segment base address (msb) */
143 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t sd_xx2:8; /* reserved */
144 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t sd_zero:5; /* must be zero */
145 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t sd_xx3:19; /* reserved */
146 1.1 fvdl } __attribute__((packed));
147 1.1 fvdl
148 1.1 fvdl /*
149 1.1 fvdl * Below is used for cs, ds, etc.
150 1.1 fvdl */
151 1.1 fvdl struct mem_segment_descriptor {
152 1.1 fvdl unsigned sd_lolimit:16; /* segment extent (lsb) */
153 1.1 fvdl unsigned sd_lobase:24; /* segment base address (lsb) */
154 1.1 fvdl unsigned sd_type:5; /* segment type */
155 1.1 fvdl unsigned sd_dpl:2; /* segment descriptor priority level */
156 1.1 fvdl unsigned sd_p:1; /* segment descriptor present */
157 1.1 fvdl unsigned sd_hilimit:4; /* segment extent (msb) */
158 1.1 fvdl unsigned sd_avl:1; /* available */
159 1.1 fvdl unsigned sd_long:1; /* long mode */
160 1.1 fvdl unsigned sd_def32:1; /* default 32 vs 16 bit size */
161 1.1 fvdl unsigned sd_gran:1; /* limit granularity (byte/page) */
162 1.1 fvdl unsigned sd_hibase:8; /* segment base address (msb) */
163 1.1 fvdl } __attribute__((packed));
164 1.1 fvdl
165 1.1 fvdl /*
166 1.1 fvdl * Gate descriptors (e.g. indirect descriptors)
167 1.1 fvdl */
168 1.1 fvdl struct gate_descriptor {
169 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t gd_looffset:16;/* gate offset (lsb) */
170 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t gd_selector:16;/* gate segment selector */
171 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t gd_ist:3; /* IST select */
172 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t gd_xx1:5; /* reserved */
173 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t gd_type:5; /* segment type */
174 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t gd_dpl:2; /* segment descriptor priority level */
175 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t gd_p:1; /* segment descriptor present */
176 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t gd_hioffset:48;/* gate offset (msb) */
177 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t gd_xx2:8; /* reserved */
178 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t gd_zero:5; /* must be zero */
179 1.1 fvdl /*BITFIELDTYPE*/ u_int64_t gd_xx3:19; /* reserved */
180 1.1 fvdl } __attribute__((packed));
181 1.1 fvdl
182 1.1 fvdl /*
183 1.1 fvdl * region descriptors, used to load gdt/idt tables before segments yet exist.
184 1.1 fvdl */
185 1.1 fvdl struct region_descriptor {
186 1.1 fvdl u_int16_t rd_limit; /* segment extent */
187 1.1 fvdl u_int64_t rd_base; /* base address */
188 1.1 fvdl } __attribute__((packed));
189 1.1 fvdl
190 1.1 fvdl #ifdef _KERNEL
191 1.1 fvdl #if 0
192 1.1 fvdl extern struct sys_segment_descriptor *ldt;
193 1.1 fvdl #endif
194 1.1 fvdl extern struct gate_descriptor *idt;
195 1.1 fvdl extern char *gdtstore;
196 1.1 fvdl extern char *ldtstore;
197 1.1 fvdl
198 1.1 fvdl void setgate __P((struct gate_descriptor *, void *, int, int, int, int));
199 1.1 fvdl void unsetgate __P((struct gate_descriptor *));
200 1.1 fvdl void setregion __P((struct region_descriptor *, void *, u_int16_t));
201 1.1 fvdl void set_sys_segment __P((struct sys_segment_descriptor *, void *, size_t,
202 1.1 fvdl int, int, int));
203 1.1 fvdl void set_mem_segment __P((struct mem_segment_descriptor *, void *, size_t,
204 1.1 fvdl int, int, int, int, int));
205 1.1 fvdl int idt_vec_alloc __P((int, int));
206 1.1 fvdl void idt_vec_set __P((int, void (*)(void)));
207 1.1 fvdl void idt_vec_free __P((int));
208 1.1 fvdl void cpu_init_idt __P((void));
209 1.1 fvdl
210 1.1 fvdl #endif /* _KERNEL */
211 1.1 fvdl
212 1.1 fvdl #endif /* !_LOCORE */
213 1.1 fvdl
214 1.1 fvdl /* system segments and gate types */
215 1.1 fvdl #define SDT_SYSNULL 0 /* system null */
216 1.1 fvdl #define SDT_SYS286TSS 1 /* system 286 TSS available */
217 1.1 fvdl #define SDT_SYSLDT 2 /* system local descriptor table */
218 1.1 fvdl #define SDT_SYS286BSY 3 /* system 286 TSS busy */
219 1.1 fvdl #define SDT_SYS286CGT 4 /* system 286 call gate */
220 1.1 fvdl #define SDT_SYSTASKGT 5 /* system task gate */
221 1.1 fvdl #define SDT_SYS286IGT 6 /* system 286 interrupt gate */
222 1.1 fvdl #define SDT_SYS286TGT 7 /* system 286 trap gate */
223 1.1 fvdl #define SDT_SYSNULL2 8 /* system null again */
224 1.1 fvdl #define SDT_SYS386TSS 9 /* system 386 TSS available */
225 1.1 fvdl #define SDT_SYSNULL3 10 /* system null again */
226 1.1 fvdl #define SDT_SYS386BSY 11 /* system 386 TSS busy */
227 1.1 fvdl #define SDT_SYS386CGT 12 /* system 386 call gate */
228 1.1 fvdl #define SDT_SYSNULL4 13 /* system null again */
229 1.1 fvdl #define SDT_SYS386IGT 14 /* system 386 interrupt gate */
230 1.1 fvdl #define SDT_SYS386TGT 15 /* system 386 trap gate */
231 1.1 fvdl
232 1.1 fvdl /* memory segment types */
233 1.1 fvdl #define SDT_MEMRO 16 /* memory read only */
234 1.1 fvdl #define SDT_MEMROA 17 /* memory read only accessed */
235 1.1 fvdl #define SDT_MEMRW 18 /* memory read write */
236 1.1 fvdl #define SDT_MEMRWA 19 /* memory read write accessed */
237 1.1 fvdl #define SDT_MEMROD 20 /* memory read only expand dwn limit */
238 1.1 fvdl #define SDT_MEMRODA 21 /* memory read only expand dwn limit accessed */
239 1.1 fvdl #define SDT_MEMRWD 22 /* memory read write expand dwn limit */
240 1.1 fvdl #define SDT_MEMRWDA 23 /* memory read write expand dwn limit acessed */
241 1.1 fvdl #define SDT_MEME 24 /* memory execute only */
242 1.1 fvdl #define SDT_MEMEA 25 /* memory execute only accessed */
243 1.1 fvdl #define SDT_MEMER 26 /* memory execute read */
244 1.1 fvdl #define SDT_MEMERA 27 /* memory execute read accessed */
245 1.1 fvdl #define SDT_MEMEC 28 /* memory execute only conforming */
246 1.1 fvdl #define SDT_MEMEAC 29 /* memory execute only accessed conforming */
247 1.1 fvdl #define SDT_MEMERC 30 /* memory execute read conforming */
248 1.1 fvdl #define SDT_MEMERAC 31 /* memory execute read accessed conforming */
249 1.1 fvdl
250 1.1 fvdl /* is memory segment descriptor pointer ? */
251 1.1 fvdl #define ISMEMSDP(s) ((s->d_type) >= SDT_MEMRO && \
252 1.1 fvdl (s->d_type) <= SDT_MEMERAC)
253 1.1 fvdl
254 1.1 fvdl /* is 286 gate descriptor pointer ? */
255 1.1 fvdl #define IS286GDP(s) ((s->d_type) >= SDT_SYS286CGT && \
256 1.1 fvdl (s->d_type) < SDT_SYS286TGT)
257 1.1 fvdl
258 1.1 fvdl /* is 386 gate descriptor pointer ? */
259 1.1 fvdl #define IS386GDP(s) ((s->d_type) >= SDT_SYS386CGT && \
260 1.1 fvdl (s->d_type) < SDT_SYS386TGT)
261 1.1 fvdl
262 1.1 fvdl /* is gate descriptor pointer ? */
263 1.1 fvdl #define ISGDP(s) (IS286GDP(s) || IS386GDP(s))
264 1.1 fvdl
265 1.1 fvdl /* is segment descriptor pointer ? */
266 1.1 fvdl #define ISSDP(s) (ISMEMSDP(s) || !ISGDP(s))
267 1.1 fvdl
268 1.1 fvdl /* is system segment descriptor pointer ? */
269 1.1 fvdl #define ISSYSSDP(s) (!ISMEMSDP(s) && !ISGDP(s))
270 1.1 fvdl
271 1.1 fvdl /*
272 1.1 fvdl * Segment Protection Exception code bits
273 1.1 fvdl */
274 1.1 fvdl #define SEGEX_EXT 0x01 /* recursive or externally induced */
275 1.1 fvdl #define SEGEX_IDT 0x02 /* interrupt descriptor table */
276 1.1 fvdl #define SEGEX_TI 0x04 /* local descriptor table */
277 1.1 fvdl
278 1.1 fvdl /*
279 1.1 fvdl * Entries in the Interrupt Descriptor Table (IDT)
280 1.1 fvdl */
281 1.1 fvdl #define NIDT 256
282 1.1 fvdl #define NRSVIDT 32 /* reserved entries for cpu exceptions */
283 1.1 fvdl
284 1.1 fvdl /*
285 1.1 fvdl * Entries in the Global Descriptor Table (GDT)
286 1.1 fvdl * The code and data descriptors must come first. There
287 1.1 fvdl * are NGDT_MEM of them.
288 1.1 fvdl *
289 1.1 fvdl * Then come the predefined LDT (and possibly TSS) descriptors.
290 1.1 fvdl * There are NGDT_SYS of them.
291 1.1 fvdl */
292 1.1 fvdl #define GNULL_SEL 0 /* Null descriptor */
293 1.1 fvdl #define GCODE_SEL 1 /* Kernel code descriptor */
294 1.1 fvdl #define GDATA_SEL 2 /* Kernel data descriptor */
295 1.1 fvdl #define GUCODE_SEL 3 /* User code descriptor */
296 1.1 fvdl #define GUDATA_SEL 4 /* User data descriptor */
297 1.1 fvdl #define GAPM32CODE_SEL 5
298 1.1 fvdl #define GAPM16CODE_SEL 6
299 1.1 fvdl #define GAPMDATA_SEL 7
300 1.1 fvdl #define GBIOSCODE_SEL 8
301 1.1 fvdl #define GBIOSDATA_SEL 9
302 1.1 fvdl #define GPNPBIOSCODE_SEL 10
303 1.1 fvdl #define GPNPBIOSDATA_SEL 11
304 1.1 fvdl #define GPNPBIOSSCRATCH_SEL 12
305 1.1 fvdl #define GPNPBIOSTRAMP_SEL 13
306 1.1 fvdl #define GUCODE32_SEL 14
307 1.1 fvdl #define GUDATA32_SEL 15
308 1.1 fvdl #define NGDT_MEM 16
309 1.1 fvdl
310 1.1 fvdl #define GLDT_SEL 0 /* Default LDT descriptor */
311 1.1 fvdl #define NGDT_SYS 1
312 1.1 fvdl
313 1.1 fvdl #define GDT_SYS_OFFSET (NGDT_MEM << 3)
314 1.1 fvdl
315 1.1 fvdl #define GDT_ADDR_MEM(s,i) \
316 1.1 fvdl ((struct mem_segment_descriptor *)((s) + ((i) << 3)))
317 1.1 fvdl #define GDT_ADDR_SYS(s,i) \
318 1.1 fvdl ((struct sys_segment_descriptor *)((s) + (((i) << 4) + SYSSEL_START)))
319 1.1 fvdl
320 1.1 fvdl /*
321 1.1 fvdl * Byte offsets in the Local Descriptor Table (LDT)
322 1.1 fvdl * Strange order because of syscall/sysret insns
323 1.1 fvdl */
324 1.1 fvdl #define LSYS5CALLS_SEL 0 /* iBCS system call gate */
325 1.1 fvdl #define LUCODE32_SEL 8 /* 32 bit user code descriptor */
326 1.1 fvdl #define LUDATA_SEL 16 /* User data descriptor */
327 1.1 fvdl #define LUCODE_SEL 24 /* User code descriptor */
328 1.1 fvdl #define LSOL26CALLS_SEL 32 /* Solaris 2.6 system call gate */
329 1.1 fvdl #define LUDATA32_SEL 56 /* 32 bit user data descriptor (needed?)*/
330 1.1 fvdl #define LBSDICALLS_SEL 128 /* BSDI system call gate */
331 1.1 fvdl
332 1.1 fvdl #define LDT_SIZE 144
333 1.1 fvdl
334 1.1 fvdl #define LSYSRETBASE_SEL LUCODE32_SEL
335 1.3 fvdl
336 1.3 fvdl /*
337 1.3 fvdl * Checks for valid user selectors. If USER_LDT ever gets implemented
338 1.3 fvdl * for amd64, these must check the ldt length and SEL_UPL if a user
339 1.3 fvdl * ldt is active.
340 1.3 fvdl */
341 1.3 fvdl #define VALID_USER_DSEL32(s) \
342 1.3 fvdl ((s) == GSEL(GUDATA32_SEL, SEL_UPL) || (s) == LSEL(LUDATA32_SEL, SEL_UPL))
343 1.3 fvdl #define VALID_USER_CSEL32(s) \
344 1.3 fvdl ((s) == GSEL(GUCODE32_SEL, SEL_UPL) || (s) == LSEL(LUCODE32_SEL, SEL_UPL))
345 1.3 fvdl
346 1.3 fvdl #define VALID_USER_CSEL(s) \
347 1.3 fvdl ((s) == GSEL(GUCODE_SEL, SEL_UPL) || (s) == LSEL(LUCODE_SEL, SEL_UPL))
348 1.3 fvdl #define VALID_USER_DSEL(s) \
349 1.3 fvdl ((s) == GSEL(GUDATA_SEL, SEL_UPL) || (s) == LSEL(LUDATA_SEL, SEL_UPL))
350 1.1 fvdl
351 1.1 fvdl #endif /* _AMD64_SEGMENTS_H_ */
352