]>
Commit | Line | Data |
---|---|---|
1c79356b | 1 | /* |
39037602 | 2 | * Copyright (c) 2000-2016 Apple Inc. All rights reserved. |
1c79356b | 3 | * |
2d21ac55 | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
1c79356b | 5 | * |
2d21ac55 A |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License | |
8 | * Version 2.0 (the 'License'). You may not use this file except in | |
9 | * compliance with the License. The rights granted to you under the License | |
10 | * may not be used to create, or enable the creation or redistribution of, | |
11 | * unlawful or unlicensed copies of an Apple operating system, or to | |
12 | * circumvent, violate, or enable the circumvention or violation of, any | |
13 | * terms of an Apple operating system software license agreement. | |
8f6c56a5 | 14 | * |
2d21ac55 A |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
17 | * | |
18 | * The Original Code and all software distributed under the License are | |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
8f6c56a5 A |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
2d21ac55 A |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and | |
24 | * limitations under the License. | |
8f6c56a5 | 25 | * |
2d21ac55 | 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
1c79356b A |
27 | */ |
28 | /* | |
29 | * @OSF_COPYRIGHT@ | |
30 | */ | |
31 | /* | |
32 | * Mach Operating System | |
33 | * Copyright (c) 1991,1990 Carnegie Mellon University | |
34 | * All Rights Reserved. | |
35 | * | |
36 | * Permission to use, copy, modify and distribute this software and its | |
37 | * documentation is hereby granted, provided that both the copyright | |
38 | * notice and this permission notice appear in all copies of the | |
39 | * software, derivative works or modified versions, and any portions | |
40 | * thereof, and that both notices appear in supporting documentation. | |
41 | * | |
42 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" | |
43 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR | |
44 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. | |
45 | * | |
46 | * Carnegie Mellon requests users of this software to return to | |
47 | * | |
48 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU | |
49 | * School of Computer Science | |
50 | * Carnegie Mellon University | |
51 | * Pittsburgh PA 15213-3890 | |
52 | * | |
53 | * any improvements or extensions that they make and grant Carnegie Mellon | |
54 | * the rights to redistribute these changes. | |
55 | */ | |
56 | ||
1c79356b A |
57 | #include <mach_debug.h> |
58 | #include <mach_ldebug.h> | |
59 | ||
60 | #include <sys/kdebug.h> | |
61 | ||
62 | #include <mach/kern_return.h> | |
63 | #include <mach/thread_status.h> | |
64 | #include <mach/vm_param.h> | |
1c79356b A |
65 | |
66 | #include <kern/counters.h> | |
91447636 | 67 | #include <kern/kalloc.h> |
1c79356b | 68 | #include <kern/mach_param.h> |
91447636 A |
69 | #include <kern/processor.h> |
70 | #include <kern/cpu_data.h> | |
71 | #include <kern/cpu_number.h> | |
1c79356b A |
72 | #include <kern/task.h> |
73 | #include <kern/thread.h> | |
1c79356b A |
74 | #include <kern/sched_prim.h> |
75 | #include <kern/misc_protos.h> | |
76 | #include <kern/assert.h> | |
77 | #include <kern/spl.h> | |
91447636 | 78 | #include <kern/machine.h> |
39037602 | 79 | #include <kern/kpc.h> |
1c79356b A |
80 | #include <ipc/ipc_port.h> |
81 | #include <vm/vm_kern.h> | |
91447636 | 82 | #include <vm/vm_map.h> |
1c79356b | 83 | #include <vm/pmap.h> |
91447636 | 84 | #include <vm/vm_protos.h> |
1c79356b | 85 | |
b0d623f7 A |
86 | #include <i386/cpu_data.h> |
87 | #include <i386/cpu_number.h> | |
1c79356b A |
88 | #include <i386/eflags.h> |
89 | #include <i386/proc_reg.h> | |
1c79356b | 90 | #include <i386/fpu.h> |
2d21ac55 | 91 | #include <i386/misc_protos.h> |
6d2010ae | 92 | #include <i386/mp_desc.h> |
b0d623f7 | 93 | #include <i386/thread.h> |
0c530ab8 | 94 | #include <i386/machine_routines.h> |
b0d623f7 | 95 | #include <i386/lapic.h> /* LAPIC_PMC_SWI_VECTOR */ |
55e303ae | 96 | |
fe8ab488 A |
97 | #if HYPERVISOR |
98 | #include <kern/hv_support.h> | |
99 | #endif | |
100 | ||
1c79356b A |
101 | /* |
102 | * Maps state flavor to number of words in the state: | |
103 | */ | |
91447636 | 104 | unsigned int _MachineStateCount[] = { |
3e170ce0 A |
105 | [x86_THREAD_STATE32] = x86_THREAD_STATE32_COUNT, |
106 | [x86_THREAD_STATE64] = x86_THREAD_STATE64_COUNT, | |
107 | [x86_THREAD_STATE] = x86_THREAD_STATE_COUNT, | |
108 | [x86_FLOAT_STATE32] = x86_FLOAT_STATE32_COUNT, | |
109 | [x86_FLOAT_STATE64] = x86_FLOAT_STATE64_COUNT, | |
110 | [x86_FLOAT_STATE] = x86_FLOAT_STATE_COUNT, | |
111 | [x86_EXCEPTION_STATE32] = x86_EXCEPTION_STATE32_COUNT, | |
112 | [x86_EXCEPTION_STATE64] = x86_EXCEPTION_STATE64_COUNT, | |
113 | [x86_EXCEPTION_STATE] = x86_EXCEPTION_STATE_COUNT, | |
114 | [x86_DEBUG_STATE32] = x86_DEBUG_STATE32_COUNT, | |
115 | [x86_DEBUG_STATE64] = x86_DEBUG_STATE64_COUNT, | |
116 | [x86_DEBUG_STATE] = x86_DEBUG_STATE_COUNT, | |
117 | [x86_AVX_STATE32] = x86_AVX_STATE32_COUNT, | |
118 | [x86_AVX_STATE64] = x86_AVX_STATE64_COUNT, | |
119 | [x86_AVX_STATE] = x86_AVX_STATE_COUNT, | |
5ba3f43e A |
120 | #if !defined(RC_HIDE_XNU_J137) |
121 | [x86_AVX512_STATE32] = x86_AVX512_STATE32_COUNT, | |
122 | [x86_AVX512_STATE64] = x86_AVX512_STATE64_COUNT, | |
123 | [x86_AVX512_STATE] = x86_AVX512_STATE_COUNT, | |
124 | #endif /* not RC_HIDE_XNU_J137 */ | |
1c79356b A |
125 | }; |
126 | ||
2d21ac55 A |
127 | zone_t iss_zone; /* zone for saved_state area */ |
128 | zone_t ids_zone; /* zone for debug_state area */ | |
0c530ab8 | 129 | |
1c79356b A |
130 | /* Forward */ |
131 | ||
1c79356b A |
132 | extern void Thread_continue(void); |
133 | extern void Load_context( | |
5ba3f43e | 134 | thread_t thread) __attribute__((noreturn)); |
1c79356b | 135 | |
0c530ab8 A |
136 | static void |
137 | get_exception_state32(thread_t thread, x86_exception_state32_t *es); | |
138 | ||
139 | static void | |
140 | get_exception_state64(thread_t thread, x86_exception_state64_t *es); | |
141 | ||
142 | static void | |
143 | get_thread_state32(thread_t thread, x86_thread_state32_t *ts); | |
144 | ||
145 | static void | |
146 | get_thread_state64(thread_t thread, x86_thread_state64_t *ts); | |
147 | ||
148 | static int | |
149 | set_thread_state32(thread_t thread, x86_thread_state32_t *ts); | |
150 | ||
151 | static int | |
152 | set_thread_state64(thread_t thread, x86_thread_state64_t *ts); | |
153 | ||
fe8ab488 A |
154 | #if HYPERVISOR |
155 | static inline void | |
156 | ml_hv_cswitch(thread_t old, thread_t new) | |
157 | { | |
158 | if (old->hv_thread_target) | |
159 | hv_callbacks.preempt(old->hv_thread_target); | |
160 | ||
161 | if (new->hv_thread_target) | |
162 | hv_callbacks.dispatch(new->hv_thread_target); | |
163 | } | |
164 | #endif | |
165 | ||
0c530ab8 | 166 | /* |
3e170ce0 A |
167 | * Don't let an illegal value for the lower 32-bits of dr7 get set. |
168 | * Specifically, check for undefined settings. Setting these bit patterns | |
0c530ab8 A |
169 | * result in undefined behaviour and can lead to an unexpected |
170 | * TRCTRAP. | |
171 | */ | |
172 | static boolean_t | |
3e170ce0 | 173 | dr7d_is_valid(uint32_t *dr7d) |
0c530ab8 A |
174 | { |
175 | int i; | |
176 | uint32_t mask1, mask2; | |
177 | ||
178 | /* | |
179 | * If the DE bit is set in CR4, R/W0-3 can be pattern | |
180 | * "10B" to indicate i/o reads and write | |
181 | */ | |
182 | if (!(get_cr4() & CR4_DE)) | |
183 | for (i = 0, mask1 = 0x3<<16, mask2 = 0x2<<16; i < 4; | |
184 | i++, mask1 <<= 4, mask2 <<= 4) | |
3e170ce0 | 185 | if ((*dr7d & mask1) == mask2) |
0c530ab8 A |
186 | return (FALSE); |
187 | ||
0c530ab8 A |
188 | /* |
189 | * if we are doing an instruction execution break (indicated | |
190 | * by r/w[x] being "00B"), then the len[x] must also be set | |
191 | * to "00B" | |
192 | */ | |
193 | for (i = 0; i < 4; i++) | |
3e170ce0 A |
194 | if (((((*dr7d >> (16 + i*4))) & 0x3) == 0) && |
195 | ((((*dr7d >> (18 + i*4))) & 0x3) != 0)) | |
0c530ab8 A |
196 | return (FALSE); |
197 | ||
198 | /* | |
199 | * Intel docs have these bits fixed. | |
200 | */ | |
3e170ce0 A |
201 | *dr7d |= 0x1 << 10; /* set bit 10 to 1 */ |
202 | *dr7d &= ~(0x1 << 11); /* set bit 11 to 0 */ | |
203 | *dr7d &= ~(0x1 << 12); /* set bit 12 to 0 */ | |
204 | *dr7d &= ~(0x1 << 14); /* set bit 14 to 0 */ | |
205 | *dr7d &= ~(0x1 << 15); /* set bit 15 to 0 */ | |
0c530ab8 A |
206 | |
207 | /* | |
208 | * We don't allow anything to set the global breakpoints. | |
209 | */ | |
210 | ||
3e170ce0 | 211 | if (*dr7d & 0x2) |
0c530ab8 A |
212 | return (FALSE); |
213 | ||
3e170ce0 | 214 | if (*dr7d & (0x2<<2)) |
0c530ab8 A |
215 | return (FALSE); |
216 | ||
3e170ce0 | 217 | if (*dr7d & (0x2<<4)) |
0c530ab8 A |
218 | return (FALSE); |
219 | ||
3e170ce0 | 220 | if (*dr7d & (0x2<<6)) |
0c530ab8 A |
221 | return (FALSE); |
222 | ||
223 | return (TRUE); | |
224 | } | |
225 | ||
0c530ab8 A |
226 | extern void set_64bit_debug_regs(x86_debug_state64_t *ds); |
227 | ||
b0d623f7 A |
228 | boolean_t |
229 | debug_state_is_valid32(x86_debug_state32_t *ds) | |
230 | { | |
3e170ce0 | 231 | if (!dr7d_is_valid(&ds->dr7)) |
b0d623f7 A |
232 | return FALSE; |
233 | ||
b0d623f7 A |
234 | return TRUE; |
235 | } | |
236 | ||
237 | boolean_t | |
238 | debug_state_is_valid64(x86_debug_state64_t *ds) | |
239 | { | |
3e170ce0 | 240 | if (!dr7d_is_valid((uint32_t *)&ds->dr7)) |
b0d623f7 A |
241 | return FALSE; |
242 | ||
243 | /* | |
244 | * Don't allow the user to set debug addresses above their max | |
245 | * value | |
246 | */ | |
247 | if (ds->dr7 & 0x1) | |
248 | if (ds->dr0 >= VM_MAX_PAGE_ADDRESS) | |
249 | return FALSE; | |
250 | ||
251 | if (ds->dr7 & (0x1<<2)) | |
252 | if (ds->dr1 >= VM_MAX_PAGE_ADDRESS) | |
253 | return FALSE; | |
254 | ||
255 | if (ds->dr7 & (0x1<<4)) | |
256 | if (ds->dr2 >= VM_MAX_PAGE_ADDRESS) | |
257 | return FALSE; | |
258 | ||
259 | if (ds->dr7 & (0x1<<6)) | |
260 | if (ds->dr3 >= VM_MAX_PAGE_ADDRESS) | |
261 | return FALSE; | |
262 | ||
3e170ce0 A |
263 | /* For x86-64, we must ensure the upper 32-bits of DR7 are clear */ |
264 | ds->dr7 &= 0xffffffffULL; | |
265 | ||
b0d623f7 A |
266 | return TRUE; |
267 | } | |
268 | ||
269 | ||
0c530ab8 A |
270 | static kern_return_t |
271 | set_debug_state32(thread_t thread, x86_debug_state32_t *ds) | |
272 | { | |
a39ff7e2 | 273 | x86_debug_state32_t *new_ids; |
0c530ab8 A |
274 | pcb_t pcb; |
275 | ||
6d2010ae | 276 | pcb = THREAD_TO_PCB(thread); |
0c530ab8 | 277 | |
b0d623f7 A |
278 | if (debug_state_is_valid32(ds) != TRUE) { |
279 | return KERN_INVALID_ARGUMENT; | |
280 | } | |
281 | ||
a39ff7e2 A |
282 | if (pcb->ids == NULL) { |
283 | new_ids = zalloc(ids_zone); | |
284 | bzero(new_ids, sizeof *new_ids); | |
0c530ab8 A |
285 | |
286 | simple_lock(&pcb->lock); | |
287 | /* make sure it wasn't already alloc()'d elsewhere */ | |
288 | if (pcb->ids == NULL) { | |
a39ff7e2 | 289 | pcb->ids = new_ids; |
0c530ab8 A |
290 | simple_unlock(&pcb->lock); |
291 | } else { | |
292 | simple_unlock(&pcb->lock); | |
a39ff7e2 | 293 | zfree(ids_zone, new_ids); |
0c530ab8 A |
294 | } |
295 | } | |
296 | ||
0c530ab8 | 297 | |
a39ff7e2 | 298 | copy_debug_state32(ds, pcb->ids, FALSE); |
0c530ab8 A |
299 | |
300 | return (KERN_SUCCESS); | |
0c530ab8 A |
301 | } |
302 | ||
303 | static kern_return_t | |
304 | set_debug_state64(thread_t thread, x86_debug_state64_t *ds) | |
305 | { | |
a39ff7e2 | 306 | x86_debug_state64_t *new_ids; |
0c530ab8 A |
307 | pcb_t pcb; |
308 | ||
6d2010ae | 309 | pcb = THREAD_TO_PCB(thread); |
0c530ab8 | 310 | |
b0d623f7 A |
311 | if (debug_state_is_valid64(ds) != TRUE) { |
312 | return KERN_INVALID_ARGUMENT; | |
313 | } | |
314 | ||
a39ff7e2 A |
315 | if (pcb->ids == NULL) { |
316 | new_ids = zalloc(ids_zone); | |
317 | bzero(new_ids, sizeof *new_ids); | |
0c530ab8 | 318 | |
fe8ab488 A |
319 | #if HYPERVISOR |
320 | if (thread->hv_thread_target) { | |
321 | hv_callbacks.volatile_state(thread->hv_thread_target, | |
322 | HV_DEBUG_STATE); | |
323 | } | |
324 | #endif | |
325 | ||
0c530ab8 A |
326 | simple_lock(&pcb->lock); |
327 | /* make sure it wasn't already alloc()'d elsewhere */ | |
328 | if (pcb->ids == NULL) { | |
a39ff7e2 | 329 | pcb->ids = new_ids; |
0c530ab8 A |
330 | simple_unlock(&pcb->lock); |
331 | } else { | |
332 | simple_unlock(&pcb->lock); | |
a39ff7e2 | 333 | zfree(ids_zone, new_ids); |
0c530ab8 A |
334 | } |
335 | } | |
336 | ||
a39ff7e2 | 337 | copy_debug_state64(ds, pcb->ids, FALSE); |
0c530ab8 A |
338 | |
339 | return (KERN_SUCCESS); | |
0c530ab8 A |
340 | } |
341 | ||
342 | static void | |
343 | get_debug_state32(thread_t thread, x86_debug_state32_t *ds) | |
344 | { | |
345 | x86_debug_state32_t *saved_state; | |
346 | ||
6d2010ae | 347 | saved_state = thread->machine.ids; |
0c530ab8 A |
348 | |
349 | if (saved_state) { | |
b0d623f7 | 350 | copy_debug_state32(saved_state, ds, TRUE); |
0c530ab8 A |
351 | } else |
352 | bzero(ds, sizeof *ds); | |
353 | } | |
354 | ||
355 | static void | |
356 | get_debug_state64(thread_t thread, x86_debug_state64_t *ds) | |
357 | { | |
358 | x86_debug_state64_t *saved_state; | |
359 | ||
6d2010ae | 360 | saved_state = (x86_debug_state64_t *)thread->machine.ids; |
0c530ab8 A |
361 | |
362 | if (saved_state) { | |
b0d623f7 | 363 | copy_debug_state64(saved_state, ds, TRUE); |
0c530ab8 A |
364 | } else |
365 | bzero(ds, sizeof *ds); | |
366 | } | |
367 | ||
1c79356b A |
368 | /* |
369 | * consider_machine_collect: | |
370 | * | |
371 | * Try to collect machine-dependent pages | |
372 | */ | |
373 | void | |
91447636 | 374 | consider_machine_collect(void) |
1c79356b A |
375 | { |
376 | } | |
377 | ||
1c79356b | 378 | void |
91447636 | 379 | consider_machine_adjust(void) |
1c79356b | 380 | { |
1c79356b | 381 | } |
1c79356b | 382 | |
1c79356b A |
383 | /* |
384 | * Switch to the first thread on a CPU. | |
385 | */ | |
386 | void | |
55e303ae | 387 | machine_load_context( |
1c79356b A |
388 | thread_t new) |
389 | { | |
0c530ab8 | 390 | new->machine.specFlags |= OnProc; |
6d2010ae | 391 | act_machine_switch_pcb(NULL, new); |
91447636 | 392 | Load_context(new); |
1c79356b A |
393 | } |
394 | ||
39037602 A |
395 | static inline void pmap_switch_context(thread_t ot, thread_t nt, int cnum) { |
396 | pmap_assert(ml_get_interrupts_enabled() == FALSE); | |
397 | vm_map_t nmap = nt->map, omap = ot->map; | |
398 | if ((omap != nmap) || (nmap->pmap->pagezero_accessible)) { | |
399 | PMAP_DEACTIVATE_MAP(omap, ot, cnum); | |
400 | PMAP_ACTIVATE_MAP(nmap, nt, cnum); | |
401 | } | |
402 | } | |
403 | ||
1c79356b A |
404 | /* |
405 | * Switch to a new thread. | |
406 | * Save the old thread`s kernel state or continuation, | |
407 | * and return it. | |
408 | */ | |
409 | thread_t | |
55e303ae | 410 | machine_switch_context( |
91447636 A |
411 | thread_t old, |
412 | thread_continue_t continuation, | |
413 | thread_t new) | |
1c79356b | 414 | { |
39037602 | 415 | assert(current_cpu_datap()->cpu_active_stack == old->kernel_stack); |
39037602 | 416 | |
5ba3f43e | 417 | #if KPC |
39037602 | 418 | kpc_off_cpu(old); |
5ba3f43e | 419 | #endif /* KPC */ |
39037602 | 420 | |
1c79356b A |
421 | /* |
422 | * Save FP registers if in use. | |
423 | */ | |
5ba3f43e | 424 | fpu_switch_context(old, new); |
1c79356b | 425 | |
0c530ab8 A |
426 | old->machine.specFlags &= ~OnProc; |
427 | new->machine.specFlags |= OnProc; | |
428 | ||
b0d623f7 | 429 | /* |
39037602 | 430 | * Monitor the stack depth and report new max, |
b0d623f7 A |
431 | * not worrying about races. |
432 | */ | |
433 | vm_offset_t depth = current_stack_depth(); | |
434 | if (depth > kernel_stack_depth_max) { | |
435 | kernel_stack_depth_max = depth; | |
436 | KERNEL_DEBUG_CONSTANT( | |
437 | MACHDBG_CODE(DBG_MACH_SCHED, MACH_STACK_DEPTH), | |
438 | (long) depth, 0, 0, 0, 0); | |
439 | } | |
440 | ||
1c79356b A |
441 | /* |
442 | * Switch address maps if need be, even if not switching tasks. | |
443 | * (A server activation may be "borrowing" a client map.) | |
444 | */ | |
39037602 | 445 | pmap_switch_context(old, new, cpu_number()); |
1c79356b A |
446 | |
447 | /* | |
448 | * Load the rest of the user state for the new thread | |
449 | */ | |
6d2010ae | 450 | act_machine_switch_pcb(old, new); |
2d21ac55 | 451 | |
fe8ab488 A |
452 | #if HYPERVISOR |
453 | ml_hv_cswitch(old, new); | |
454 | #endif | |
455 | ||
1c79356b A |
456 | return(Switch_context(old, continuation, new)); |
457 | } | |
458 | ||
b0d623f7 A |
459 | thread_t |
460 | machine_processor_shutdown( | |
461 | thread_t thread, | |
462 | void (*doshutdown)(processor_t), | |
463 | processor_t processor) | |
464 | { | |
465 | #if CONFIG_VMX | |
466 | vmx_suspend(); | |
467 | #endif | |
5ba3f43e | 468 | fpu_switch_context(thread, NULL); |
39037602 | 469 | pmap_switch_context(thread, processor->idle_thread, cpu_number()); |
b0d623f7 A |
470 | return(Shutdown_context(thread, doshutdown, processor)); |
471 | } | |
472 | ||
91447636 A |
473 | |
474 | /* | |
475 | * This is where registers that are not normally specified by the mach-o | |
476 | * file on an execve would be nullified, perhaps to avoid a covert channel. | |
477 | */ | |
478 | kern_return_t | |
479 | machine_thread_state_initialize( | |
480 | thread_t thread) | |
481 | { | |
2d21ac55 A |
482 | /* |
483 | * If there's an fpu save area, free it. | |
484 | * The initialized state will then be lazily faulted-in, if required. | |
485 | * And if we're target, re-arm the no-fpu trap. | |
486 | */ | |
6d2010ae | 487 | if (thread->machine.ifps) { |
060df5ea | 488 | (void) fpu_set_fxstate(thread, NULL, x86_FLOAT_STATE64); |
4452a7af | 489 | |
b0d623f7 A |
490 | if (thread == current_thread()) |
491 | clear_fpu(); | |
492 | } | |
493 | ||
6d2010ae A |
494 | if (thread->machine.ids) { |
495 | zfree(ids_zone, thread->machine.ids); | |
496 | thread->machine.ids = NULL; | |
b0d623f7 A |
497 | } |
498 | ||
499 | return KERN_SUCCESS; | |
4452a7af | 500 | } |
0c530ab8 A |
501 | |
502 | uint32_t | |
503 | get_eflags_exportmask(void) | |
504 | { | |
505 | return EFL_USER_SET; | |
506 | } | |
507 | ||
508 | /* | |
509 | * x86_SAVED_STATE32 - internal save/restore general register state on 32/64 bit processors | |
510 | * for 32bit tasks only | |
511 | * x86_SAVED_STATE64 - internal save/restore general register state on 64 bit processors | |
512 | * for 64bit tasks only | |
513 | * x86_THREAD_STATE32 - external set/get general register state on 32/64 bit processors | |
514 | * for 32bit tasks only | |
515 | * x86_THREAD_STATE64 - external set/get general register state on 64 bit processors | |
516 | * for 64bit tasks only | |
517 | * x86_SAVED_STATE - external set/get general register state on 32/64 bit processors | |
518 | * for either 32bit or 64bit tasks | |
519 | * x86_FLOAT_STATE32 - internal/external save/restore float and xmm state on 32/64 bit processors | |
520 | * for 32bit tasks only | |
521 | * x86_FLOAT_STATE64 - internal/external save/restore float and xmm state on 64 bit processors | |
522 | * for 64bit tasks only | |
523 | * x86_FLOAT_STATE - external save/restore float and xmm state on 32/64 bit processors | |
524 | * for either 32bit or 64bit tasks | |
525 | * x86_EXCEPTION_STATE32 - external get exception state on 32/64 bit processors | |
526 | * for 32bit tasks only | |
527 | * x86_EXCEPTION_STATE64 - external get exception state on 64 bit processors | |
528 | * for 64bit tasks only | |
529 | * x86_EXCEPTION_STATE - external get exception state on 323/64 bit processors | |
530 | * for either 32bit or 64bit tasks | |
531 | */ | |
532 | ||
2d21ac55 | 533 | |
0c530ab8 A |
534 | static void |
535 | get_exception_state64(thread_t thread, x86_exception_state64_t *es) | |
536 | { | |
537 | x86_saved_state64_t *saved_state; | |
538 | ||
539 | saved_state = USER_REGS64(thread); | |
540 | ||
541 | es->trapno = saved_state->isf.trapno; | |
6d2010ae | 542 | es->cpu = saved_state->isf.cpu; |
b0d623f7 | 543 | es->err = (typeof(es->err))saved_state->isf.err; |
0c530ab8 A |
544 | es->faultvaddr = saved_state->cr2; |
545 | } | |
546 | ||
547 | static void | |
548 | get_exception_state32(thread_t thread, x86_exception_state32_t *es) | |
549 | { | |
550 | x86_saved_state32_t *saved_state; | |
551 | ||
552 | saved_state = USER_REGS32(thread); | |
553 | ||
554 | es->trapno = saved_state->trapno; | |
6d2010ae | 555 | es->cpu = saved_state->cpu; |
0c530ab8 A |
556 | es->err = saved_state->err; |
557 | es->faultvaddr = saved_state->cr2; | |
558 | } | |
559 | ||
560 | ||
561 | static int | |
562 | set_thread_state32(thread_t thread, x86_thread_state32_t *ts) | |
563 | { | |
564 | x86_saved_state32_t *saved_state; | |
565 | ||
6d2010ae | 566 | pal_register_cache_state(thread, DIRTY); |
b0d623f7 | 567 | |
0c530ab8 A |
568 | saved_state = USER_REGS32(thread); |
569 | ||
570 | /* | |
571 | * Scrub segment selector values: | |
572 | */ | |
b0d623f7 | 573 | ts->cs = USER_CS; |
b0d623f7 A |
574 | /* |
575 | * On a 64 bit kernel, we always override the data segments, | |
576 | * as the actual selector numbers have changed. This also | |
577 | * means that we don't support setting the data segments | |
578 | * manually any more. | |
579 | */ | |
580 | ts->ss = USER_DS; | |
581 | ts->ds = USER_DS; | |
582 | ts->es = USER_DS; | |
0c530ab8 | 583 | |
fe8ab488 A |
584 | /* Set GS to CTHREAD only if's been established */ |
585 | ts->gs = thread->machine.cthread_self ? USER_CTHREAD : NULL_SEG; | |
586 | ||
0c530ab8 A |
587 | /* Check segment selectors are safe */ |
588 | if (!valid_user_segment_selectors(ts->cs, | |
589 | ts->ss, | |
590 | ts->ds, | |
591 | ts->es, | |
592 | ts->fs, | |
593 | ts->gs)) | |
594 | return(KERN_INVALID_ARGUMENT); | |
595 | ||
596 | saved_state->eax = ts->eax; | |
597 | saved_state->ebx = ts->ebx; | |
598 | saved_state->ecx = ts->ecx; | |
599 | saved_state->edx = ts->edx; | |
600 | saved_state->edi = ts->edi; | |
601 | saved_state->esi = ts->esi; | |
602 | saved_state->ebp = ts->ebp; | |
603 | saved_state->uesp = ts->esp; | |
604 | saved_state->efl = (ts->eflags & ~EFL_USER_CLEAR) | EFL_USER_SET; | |
605 | saved_state->eip = ts->eip; | |
606 | saved_state->cs = ts->cs; | |
607 | saved_state->ss = ts->ss; | |
608 | saved_state->ds = ts->ds; | |
609 | saved_state->es = ts->es; | |
610 | saved_state->fs = ts->fs; | |
611 | saved_state->gs = ts->gs; | |
612 | ||
613 | /* | |
614 | * If the trace trap bit is being set, | |
615 | * ensure that the user returns via iret | |
616 | * - which is signaled thusly: | |
617 | */ | |
618 | if ((saved_state->efl & EFL_TF) && saved_state->cs == SYSENTER_CS) | |
619 | saved_state->cs = SYSENTER_TF_CS; | |
620 | ||
621 | return(KERN_SUCCESS); | |
622 | } | |
623 | ||
624 | static int | |
625 | set_thread_state64(thread_t thread, x86_thread_state64_t *ts) | |
626 | { | |
627 | x86_saved_state64_t *saved_state; | |
628 | ||
6d2010ae | 629 | pal_register_cache_state(thread, DIRTY); |
b0d623f7 | 630 | |
0c530ab8 A |
631 | saved_state = USER_REGS64(thread); |
632 | ||
633 | if (!IS_USERADDR64_CANONICAL(ts->rsp) || | |
634 | !IS_USERADDR64_CANONICAL(ts->rip)) | |
635 | return(KERN_INVALID_ARGUMENT); | |
636 | ||
637 | saved_state->r8 = ts->r8; | |
638 | saved_state->r9 = ts->r9; | |
639 | saved_state->r10 = ts->r10; | |
640 | saved_state->r11 = ts->r11; | |
641 | saved_state->r12 = ts->r12; | |
642 | saved_state->r13 = ts->r13; | |
643 | saved_state->r14 = ts->r14; | |
644 | saved_state->r15 = ts->r15; | |
645 | saved_state->rax = ts->rax; | |
0c530ab8 A |
646 | saved_state->rbx = ts->rbx; |
647 | saved_state->rcx = ts->rcx; | |
648 | saved_state->rdx = ts->rdx; | |
649 | saved_state->rdi = ts->rdi; | |
650 | saved_state->rsi = ts->rsi; | |
651 | saved_state->rbp = ts->rbp; | |
652 | saved_state->isf.rsp = ts->rsp; | |
653 | saved_state->isf.rflags = (ts->rflags & ~EFL_USER_CLEAR) | EFL_USER_SET; | |
654 | saved_state->isf.rip = ts->rip; | |
655 | saved_state->isf.cs = USER64_CS; | |
b0d623f7 A |
656 | saved_state->fs = (uint32_t)ts->fs; |
657 | saved_state->gs = (uint32_t)ts->gs; | |
0c530ab8 A |
658 | |
659 | return(KERN_SUCCESS); | |
660 | } | |
661 | ||
662 | ||
663 | ||
664 | static void | |
665 | get_thread_state32(thread_t thread, x86_thread_state32_t *ts) | |
666 | { | |
667 | x86_saved_state32_t *saved_state; | |
668 | ||
6d2010ae | 669 | pal_register_cache_state(thread, VALID); |
b0d623f7 | 670 | |
0c530ab8 A |
671 | saved_state = USER_REGS32(thread); |
672 | ||
673 | ts->eax = saved_state->eax; | |
674 | ts->ebx = saved_state->ebx; | |
675 | ts->ecx = saved_state->ecx; | |
676 | ts->edx = saved_state->edx; | |
677 | ts->edi = saved_state->edi; | |
678 | ts->esi = saved_state->esi; | |
679 | ts->ebp = saved_state->ebp; | |
680 | ts->esp = saved_state->uesp; | |
681 | ts->eflags = saved_state->efl; | |
682 | ts->eip = saved_state->eip; | |
683 | ts->cs = saved_state->cs; | |
684 | ts->ss = saved_state->ss; | |
685 | ts->ds = saved_state->ds; | |
686 | ts->es = saved_state->es; | |
687 | ts->fs = saved_state->fs; | |
688 | ts->gs = saved_state->gs; | |
689 | } | |
690 | ||
691 | ||
692 | static void | |
693 | get_thread_state64(thread_t thread, x86_thread_state64_t *ts) | |
694 | { | |
695 | x86_saved_state64_t *saved_state; | |
696 | ||
6d2010ae | 697 | pal_register_cache_state(thread, VALID); |
b0d623f7 | 698 | |
0c530ab8 A |
699 | saved_state = USER_REGS64(thread); |
700 | ||
701 | ts->r8 = saved_state->r8; | |
702 | ts->r9 = saved_state->r9; | |
703 | ts->r10 = saved_state->r10; | |
704 | ts->r11 = saved_state->r11; | |
705 | ts->r12 = saved_state->r12; | |
706 | ts->r13 = saved_state->r13; | |
707 | ts->r14 = saved_state->r14; | |
708 | ts->r15 = saved_state->r15; | |
709 | ts->rax = saved_state->rax; | |
710 | ts->rbx = saved_state->rbx; | |
711 | ts->rcx = saved_state->rcx; | |
712 | ts->rdx = saved_state->rdx; | |
713 | ts->rdi = saved_state->rdi; | |
714 | ts->rsi = saved_state->rsi; | |
715 | ts->rbp = saved_state->rbp; | |
716 | ts->rsp = saved_state->isf.rsp; | |
717 | ts->rflags = saved_state->isf.rflags; | |
718 | ts->rip = saved_state->isf.rip; | |
719 | ts->cs = saved_state->isf.cs; | |
720 | ts->fs = saved_state->fs; | |
721 | ts->gs = saved_state->gs; | |
722 | } | |
723 | ||
724 | ||
1c79356b A |
725 | /* |
726 | * act_machine_set_state: | |
727 | * | |
91447636 | 728 | * Set the status of the specified thread. |
1c79356b A |
729 | */ |
730 | ||
731 | kern_return_t | |
55e303ae | 732 | machine_thread_set_state( |
91447636 | 733 | thread_t thr_act, |
1c79356b A |
734 | thread_flavor_t flavor, |
735 | thread_state_t tstate, | |
736 | mach_msg_type_number_t count) | |
737 | { | |
2d21ac55 A |
738 | switch (flavor) { |
739 | case x86_SAVED_STATE32: | |
0c530ab8 | 740 | { |
0c530ab8 A |
741 | x86_saved_state32_t *state; |
742 | x86_saved_state32_t *saved_state; | |
1c79356b | 743 | |
0c530ab8 | 744 | if (count < x86_SAVED_STATE32_COUNT) |
2d21ac55 A |
745 | return(KERN_INVALID_ARGUMENT); |
746 | ||
747 | if (thread_is_64bit(thr_act)) | |
748 | return(KERN_INVALID_ARGUMENT); | |
1c79356b | 749 | |
0c530ab8 | 750 | state = (x86_saved_state32_t *) tstate; |
1c79356b | 751 | |
91447636 | 752 | /* Check segment selectors are safe */ |
0c530ab8 | 753 | if (!valid_user_segment_selectors(state->cs, |
2d21ac55 A |
754 | state->ss, |
755 | state->ds, | |
756 | state->es, | |
757 | state->fs, | |
758 | state->gs)) | |
759 | return KERN_INVALID_ARGUMENT; | |
760 | ||
6d2010ae | 761 | pal_register_cache_state(thr_act, DIRTY); |
b0d623f7 | 762 | |
0c530ab8 | 763 | saved_state = USER_REGS32(thr_act); |
1c79356b A |
764 | |
765 | /* | |
766 | * General registers | |
767 | */ | |
768 | saved_state->edi = state->edi; | |
769 | saved_state->esi = state->esi; | |
770 | saved_state->ebp = state->ebp; | |
771 | saved_state->uesp = state->uesp; | |
772 | saved_state->ebx = state->ebx; | |
773 | saved_state->edx = state->edx; | |
774 | saved_state->ecx = state->ecx; | |
775 | saved_state->eax = state->eax; | |
776 | saved_state->eip = state->eip; | |
0c530ab8 A |
777 | |
778 | saved_state->efl = (state->efl & ~EFL_USER_CLEAR) | EFL_USER_SET; | |
c0fea474 | 779 | |
8f6c56a5 | 780 | /* |
0c530ab8 A |
781 | * If the trace trap bit is being set, |
782 | * ensure that the user returns via iret | |
783 | * - which is signaled thusly: | |
21362eb3 | 784 | */ |
0c530ab8 A |
785 | if ((saved_state->efl & EFL_TF) && state->cs == SYSENTER_CS) |
786 | state->cs = SYSENTER_TF_CS; | |
787 | ||
788 | /* | |
789 | * User setting segment registers. | |
790 | * Code and stack selectors have already been | |
791 | * checked. Others will be reset by 'iret' | |
792 | * if they are not valid. | |
793 | */ | |
794 | saved_state->cs = state->cs; | |
795 | saved_state->ss = state->ss; | |
796 | saved_state->ds = state->ds; | |
797 | saved_state->es = state->es; | |
798 | saved_state->fs = state->fs; | |
799 | saved_state->gs = state->gs; | |
b0d623f7 | 800 | |
4452a7af | 801 | break; |
2d21ac55 | 802 | } |
4452a7af | 803 | |
2d21ac55 A |
804 | case x86_SAVED_STATE64: |
805 | { | |
0c530ab8 A |
806 | x86_saved_state64_t *state; |
807 | x86_saved_state64_t *saved_state; | |
89b3af67 | 808 | |
0c530ab8 | 809 | if (count < x86_SAVED_STATE64_COUNT) |
2d21ac55 A |
810 | return(KERN_INVALID_ARGUMENT); |
811 | ||
812 | if (!thread_is_64bit(thr_act)) | |
813 | return(KERN_INVALID_ARGUMENT); | |
0c530ab8 A |
814 | |
815 | state = (x86_saved_state64_t *) tstate; | |
5d5c5d0d | 816 | |
0c530ab8 A |
817 | /* Verify that the supplied code segment selector is |
818 | * valid. In 64-bit mode, the FS and GS segment overrides | |
819 | * use the FS.base and GS.base MSRs to calculate | |
820 | * base addresses, and the trampolines don't directly | |
821 | * restore the segment registers--hence they are no | |
822 | * longer relevant for validation. | |
823 | */ | |
824 | if (!valid_user_code_selector(state->isf.cs)) | |
825 | return KERN_INVALID_ARGUMENT; | |
826 | ||
827 | /* Check pc and stack are canonical addresses */ | |
828 | if (!IS_USERADDR64_CANONICAL(state->isf.rsp) || | |
829 | !IS_USERADDR64_CANONICAL(state->isf.rip)) | |
6601e61a | 830 | return KERN_INVALID_ARGUMENT; |
5d5c5d0d | 831 | |
6d2010ae | 832 | pal_register_cache_state(thr_act, DIRTY); |
b0d623f7 | 833 | |
0c530ab8 | 834 | saved_state = USER_REGS64(thr_act); |
5d5c5d0d | 835 | |
21362eb3 | 836 | /* |
6601e61a | 837 | * General registers |
21362eb3 | 838 | */ |
0c530ab8 A |
839 | saved_state->r8 = state->r8; |
840 | saved_state->r9 = state->r9; | |
841 | saved_state->r10 = state->r10; | |
842 | saved_state->r11 = state->r11; | |
843 | saved_state->r12 = state->r12; | |
844 | saved_state->r13 = state->r13; | |
845 | saved_state->r14 = state->r14; | |
846 | saved_state->r15 = state->r15; | |
847 | saved_state->rdi = state->rdi; | |
848 | saved_state->rsi = state->rsi; | |
849 | saved_state->rbp = state->rbp; | |
850 | saved_state->rbx = state->rbx; | |
851 | saved_state->rdx = state->rdx; | |
852 | saved_state->rcx = state->rcx; | |
853 | saved_state->rax = state->rax; | |
854 | saved_state->isf.rsp = state->isf.rsp; | |
855 | saved_state->isf.rip = state->isf.rip; | |
856 | ||
857 | saved_state->isf.rflags = (state->isf.rflags & ~EFL_USER_CLEAR) | EFL_USER_SET; | |
858 | ||
2d21ac55 | 859 | /* |
0c530ab8 A |
860 | * User setting segment registers. |
861 | * Code and stack selectors have already been | |
862 | * checked. Others will be reset by 'sys' | |
863 | * if they are not valid. | |
6601e61a | 864 | */ |
2d21ac55 | 865 | saved_state->isf.cs = state->isf.cs; |
0c530ab8 A |
866 | saved_state->isf.ss = state->isf.ss; |
867 | saved_state->fs = state->fs; | |
868 | saved_state->gs = state->gs; | |
b0d623f7 | 869 | |
89b3af67 | 870 | break; |
2d21ac55 | 871 | } |
89b3af67 | 872 | |
2d21ac55 | 873 | case x86_FLOAT_STATE32: |
5ba3f43e A |
874 | case x86_AVX_STATE32: |
875 | #if !defined(RC_HIDE_XNU_J137) | |
876 | case x86_AVX512_STATE32: | |
877 | #endif /* not RC_HIDE_XNU_J137 */ | |
2d21ac55 | 878 | { |
5ba3f43e | 879 | if (count != _MachineStateCount[flavor]) |
0c530ab8 A |
880 | return(KERN_INVALID_ARGUMENT); |
881 | ||
882 | if (thread_is_64bit(thr_act)) | |
4452a7af | 883 | return(KERN_INVALID_ARGUMENT); |
0c530ab8 | 884 | |
060df5ea | 885 | return fpu_set_fxstate(thr_act, tstate, flavor); |
2d21ac55 | 886 | } |
4452a7af | 887 | |
2d21ac55 | 888 | case x86_FLOAT_STATE64: |
5ba3f43e A |
889 | case x86_AVX_STATE64: |
890 | #if !defined(RC_HIDE_XNU_J137) | |
891 | case x86_AVX512_STATE64: | |
892 | #endif /* not RC_HIDE_XNU_J137 */ | |
2d21ac55 | 893 | { |
5ba3f43e | 894 | if (count != _MachineStateCount[flavor]) |
4452a7af A |
895 | return(KERN_INVALID_ARGUMENT); |
896 | ||
5ba3f43e | 897 | if (!thread_is_64bit(thr_act)) |
0c530ab8 A |
898 | return(KERN_INVALID_ARGUMENT); |
899 | ||
060df5ea | 900 | return fpu_set_fxstate(thr_act, tstate, flavor); |
2d21ac55 | 901 | } |
5d5c5d0d | 902 | |
2d21ac55 A |
903 | case x86_FLOAT_STATE: |
904 | { | |
905 | x86_float_state_t *state; | |
4452a7af | 906 | |
0c530ab8 A |
907 | if (count != x86_FLOAT_STATE_COUNT) |
908 | return(KERN_INVALID_ARGUMENT); | |
4452a7af | 909 | |
0c530ab8 | 910 | state = (x86_float_state_t *)tstate; |
0c530ab8 A |
911 | if (state->fsh.flavor == x86_FLOAT_STATE64 && state->fsh.count == x86_FLOAT_STATE64_COUNT && |
912 | thread_is_64bit(thr_act)) { | |
060df5ea | 913 | return fpu_set_fxstate(thr_act, (thread_state_t)&state->ufs.fs64, x86_FLOAT_STATE64); |
0c530ab8 A |
914 | } |
915 | if (state->fsh.flavor == x86_FLOAT_STATE32 && state->fsh.count == x86_FLOAT_STATE32_COUNT && | |
916 | !thread_is_64bit(thr_act)) { | |
060df5ea | 917 | return fpu_set_fxstate(thr_act, (thread_state_t)&state->ufs.fs32, x86_FLOAT_STATE32); |
0c530ab8 A |
918 | } |
919 | return(KERN_INVALID_ARGUMENT); | |
2d21ac55 | 920 | } |
0c530ab8 | 921 | |
bd504ef0 | 922 | case x86_AVX_STATE: |
5ba3f43e A |
923 | #if !defined(RC_HIDE_XNU_J137) |
924 | case x86_AVX512_STATE: | |
925 | #endif | |
bd504ef0 A |
926 | { |
927 | x86_avx_state_t *state; | |
928 | ||
5ba3f43e | 929 | if (count != _MachineStateCount[flavor]) |
bd504ef0 A |
930 | return(KERN_INVALID_ARGUMENT); |
931 | ||
932 | state = (x86_avx_state_t *)tstate; | |
5ba3f43e A |
933 | /* Flavors are defined to have sequential values: 32-bit, 64-bit, non-specific */ |
934 | /* 64-bit flavor? */ | |
935 | if (state->ash.flavor == (flavor - 1) && | |
936 | state->ash.count == _MachineStateCount[flavor - 1] && | |
bd504ef0 A |
937 | thread_is_64bit(thr_act)) { |
938 | return fpu_set_fxstate(thr_act, | |
939 | (thread_state_t)&state->ufs.as64, | |
5ba3f43e | 940 | flavor - 1); |
bd504ef0 | 941 | } |
5ba3f43e A |
942 | /* 32-bit flavor? */ |
943 | if (state->ash.flavor == (flavor - 2) && | |
944 | state->ash.count == _MachineStateCount[flavor - 2] && | |
bd504ef0 A |
945 | !thread_is_64bit(thr_act)) { |
946 | return fpu_set_fxstate(thr_act, | |
947 | (thread_state_t)&state->ufs.as32, | |
5ba3f43e | 948 | flavor - 2); |
bd504ef0 A |
949 | } |
950 | return(KERN_INVALID_ARGUMENT); | |
951 | } | |
952 | ||
2d21ac55 A |
953 | case x86_THREAD_STATE32: |
954 | { | |
0c530ab8 A |
955 | if (count != x86_THREAD_STATE32_COUNT) |
956 | return(KERN_INVALID_ARGUMENT); | |
957 | ||
958 | if (thread_is_64bit(thr_act)) | |
959 | return(KERN_INVALID_ARGUMENT); | |
2d21ac55 | 960 | |
0c530ab8 | 961 | return set_thread_state32(thr_act, (x86_thread_state32_t *)tstate); |
2d21ac55 | 962 | } |
0c530ab8 | 963 | |
2d21ac55 A |
964 | case x86_THREAD_STATE64: |
965 | { | |
0c530ab8 A |
966 | if (count != x86_THREAD_STATE64_COUNT) |
967 | return(KERN_INVALID_ARGUMENT); | |
968 | ||
2d21ac55 | 969 | if (!thread_is_64bit(thr_act)) |
0c530ab8 A |
970 | return(KERN_INVALID_ARGUMENT); |
971 | ||
972 | return set_thread_state64(thr_act, (x86_thread_state64_t *)tstate); | |
0c530ab8 | 973 | |
2d21ac55 A |
974 | } |
975 | case x86_THREAD_STATE: | |
976 | { | |
977 | x86_thread_state_t *state; | |
0c530ab8 A |
978 | |
979 | if (count != x86_THREAD_STATE_COUNT) | |
980 | return(KERN_INVALID_ARGUMENT); | |
981 | ||
982 | state = (x86_thread_state_t *)tstate; | |
983 | ||
2d21ac55 A |
984 | if (state->tsh.flavor == x86_THREAD_STATE64 && |
985 | state->tsh.count == x86_THREAD_STATE64_COUNT && | |
0c530ab8 | 986 | thread_is_64bit(thr_act)) { |
2d21ac55 A |
987 | return set_thread_state64(thr_act, &state->uts.ts64); |
988 | } else if (state->tsh.flavor == x86_THREAD_STATE32 && | |
989 | state->tsh.count == x86_THREAD_STATE32_COUNT && | |
0c530ab8 | 990 | !thread_is_64bit(thr_act)) { |
2d21ac55 | 991 | return set_thread_state32(thr_act, &state->uts.ts32); |
0c530ab8 | 992 | } else |
2d21ac55 | 993 | return(KERN_INVALID_ARGUMENT); |
2d21ac55 | 994 | } |
0c530ab8 A |
995 | case x86_DEBUG_STATE32: |
996 | { | |
997 | x86_debug_state32_t *state; | |
998 | kern_return_t ret; | |
4452a7af | 999 | |
0c530ab8 A |
1000 | if (thread_is_64bit(thr_act)) |
1001 | return(KERN_INVALID_ARGUMENT); | |
1002 | ||
1003 | state = (x86_debug_state32_t *)tstate; | |
1004 | ||
1005 | ret = set_debug_state32(thr_act, state); | |
1006 | ||
1007 | return ret; | |
6601e61a | 1008 | } |
0c530ab8 A |
1009 | case x86_DEBUG_STATE64: |
1010 | { | |
1011 | x86_debug_state64_t *state; | |
1012 | kern_return_t ret; | |
4452a7af | 1013 | |
0c530ab8 A |
1014 | if (!thread_is_64bit(thr_act)) |
1015 | return(KERN_INVALID_ARGUMENT); | |
1016 | ||
1017 | state = (x86_debug_state64_t *)tstate; | |
1018 | ||
1019 | ret = set_debug_state64(thr_act, state); | |
1020 | ||
1021 | return ret; | |
1022 | } | |
1023 | case x86_DEBUG_STATE: | |
1024 | { | |
1025 | x86_debug_state_t *state; | |
1026 | kern_return_t ret = KERN_INVALID_ARGUMENT; | |
1027 | ||
1028 | if (count != x86_DEBUG_STATE_COUNT) | |
1029 | return (KERN_INVALID_ARGUMENT); | |
1030 | ||
1031 | state = (x86_debug_state_t *)tstate; | |
1032 | if (state->dsh.flavor == x86_DEBUG_STATE64 && | |
1033 | state->dsh.count == x86_DEBUG_STATE64_COUNT && | |
1034 | thread_is_64bit(thr_act)) { | |
1035 | ret = set_debug_state64(thr_act, &state->uds.ds64); | |
1036 | } | |
1037 | else | |
1038 | if (state->dsh.flavor == x86_DEBUG_STATE32 && | |
1039 | state->dsh.count == x86_DEBUG_STATE32_COUNT && | |
1040 | !thread_is_64bit(thr_act)) { | |
1041 | ret = set_debug_state32(thr_act, &state->uds.ds32); | |
1042 | } | |
1043 | return ret; | |
1044 | } | |
1045 | default: | |
6601e61a A |
1046 | return(KERN_INVALID_ARGUMENT); |
1047 | } | |
4452a7af | 1048 | |
6601e61a A |
1049 | return(KERN_SUCCESS); |
1050 | } | |
4452a7af | 1051 | |
0c530ab8 A |
1052 | |
1053 | ||
6601e61a A |
1054 | /* |
1055 | * thread_getstatus: | |
1056 | * | |
1057 | * Get the status of the specified thread. | |
1058 | */ | |
4452a7af | 1059 | |
6601e61a A |
1060 | kern_return_t |
1061 | machine_thread_get_state( | |
1062 | thread_t thr_act, | |
1063 | thread_flavor_t flavor, | |
1064 | thread_state_t tstate, | |
1065 | mach_msg_type_number_t *count) | |
1066 | { | |
2d21ac55 | 1067 | |
6601e61a | 1068 | switch (flavor) { |
4452a7af | 1069 | |
0c530ab8 A |
1070 | case THREAD_STATE_FLAVOR_LIST: |
1071 | { | |
1072 | if (*count < 3) | |
1073 | return (KERN_INVALID_ARGUMENT); | |
1074 | ||
1075 | tstate[0] = i386_THREAD_STATE; | |
1076 | tstate[1] = i386_FLOAT_STATE; | |
1077 | tstate[2] = i386_EXCEPTION_STATE; | |
1078 | ||
1079 | *count = 3; | |
1080 | break; | |
1081 | } | |
1082 | ||
1083 | case THREAD_STATE_FLAVOR_LIST_NEW: | |
1084 | { | |
1085 | if (*count < 4) | |
1086 | return (KERN_INVALID_ARGUMENT); | |
1087 | ||
1088 | tstate[0] = x86_THREAD_STATE; | |
1089 | tstate[1] = x86_FLOAT_STATE; | |
1090 | tstate[2] = x86_EXCEPTION_STATE; | |
1091 | tstate[3] = x86_DEBUG_STATE; | |
1092 | ||
1093 | *count = 4; | |
1094 | break; | |
1095 | } | |
1096 | ||
bd504ef0 A |
1097 | case THREAD_STATE_FLAVOR_LIST_10_9: |
1098 | { | |
1099 | if (*count < 5) | |
1100 | return (KERN_INVALID_ARGUMENT); | |
1101 | ||
1102 | tstate[0] = x86_THREAD_STATE; | |
1103 | tstate[1] = x86_FLOAT_STATE; | |
1104 | tstate[2] = x86_EXCEPTION_STATE; | |
1105 | tstate[3] = x86_DEBUG_STATE; | |
1106 | tstate[4] = x86_AVX_STATE; | |
1107 | ||
1108 | *count = 5; | |
1109 | break; | |
1110 | } | |
1111 | ||
5ba3f43e A |
1112 | #if !defined(RC_HIDE_XNU_J137) |
1113 | case THREAD_STATE_FLAVOR_LIST_10_13: | |
1114 | { | |
1115 | if (*count < 6) | |
1116 | return (KERN_INVALID_ARGUMENT); | |
1117 | ||
1118 | tstate[0] = x86_THREAD_STATE; | |
1119 | tstate[1] = x86_FLOAT_STATE; | |
1120 | tstate[2] = x86_EXCEPTION_STATE; | |
1121 | tstate[3] = x86_DEBUG_STATE; | |
1122 | tstate[4] = x86_AVX_STATE; | |
1123 | tstate[5] = x86_AVX512_STATE; | |
1124 | ||
1125 | *count = 6; | |
1126 | break; | |
1127 | } | |
1128 | ||
1129 | #endif | |
0c530ab8 | 1130 | case x86_SAVED_STATE32: |
4452a7af | 1131 | { |
0c530ab8 A |
1132 | x86_saved_state32_t *state; |
1133 | x86_saved_state32_t *saved_state; | |
4452a7af | 1134 | |
0c530ab8 A |
1135 | if (*count < x86_SAVED_STATE32_COUNT) |
1136 | return(KERN_INVALID_ARGUMENT); | |
4452a7af | 1137 | |
2d21ac55 A |
1138 | if (thread_is_64bit(thr_act)) |
1139 | return(KERN_INVALID_ARGUMENT); | |
1140 | ||
0c530ab8 A |
1141 | state = (x86_saved_state32_t *) tstate; |
1142 | saved_state = USER_REGS32(thr_act); | |
4452a7af | 1143 | |
6601e61a A |
1144 | /* |
1145 | * First, copy everything: | |
1146 | */ | |
1147 | *state = *saved_state; | |
0c530ab8 A |
1148 | state->ds = saved_state->ds & 0xffff; |
1149 | state->es = saved_state->es & 0xffff; | |
1150 | state->fs = saved_state->fs & 0xffff; | |
1151 | state->gs = saved_state->gs & 0xffff; | |
4452a7af | 1152 | |
0c530ab8 | 1153 | *count = x86_SAVED_STATE32_COUNT; |
4452a7af | 1154 | break; |
8f6c56a5 | 1155 | } |
5d5c5d0d | 1156 | |
0c530ab8 | 1157 | case x86_SAVED_STATE64: |
4452a7af | 1158 | { |
0c530ab8 A |
1159 | x86_saved_state64_t *state; |
1160 | x86_saved_state64_t *saved_state; | |
89b3af67 | 1161 | |
0c530ab8 A |
1162 | if (*count < x86_SAVED_STATE64_COUNT) |
1163 | return(KERN_INVALID_ARGUMENT); | |
89b3af67 | 1164 | |
2d21ac55 A |
1165 | if (!thread_is_64bit(thr_act)) |
1166 | return(KERN_INVALID_ARGUMENT); | |
1167 | ||
0c530ab8 A |
1168 | state = (x86_saved_state64_t *)tstate; |
1169 | saved_state = USER_REGS64(thr_act); | |
89b3af67 | 1170 | |
6601e61a | 1171 | /* |
0c530ab8 | 1172 | * First, copy everything: |
6601e61a | 1173 | */ |
0c530ab8 A |
1174 | *state = *saved_state; |
1175 | state->fs = saved_state->fs & 0xffff; | |
1176 | state->gs = saved_state->gs & 0xffff; | |
1177 | ||
1178 | *count = x86_SAVED_STATE64_COUNT; | |
4452a7af A |
1179 | break; |
1180 | } | |
1181 | ||
0c530ab8 | 1182 | case x86_FLOAT_STATE32: |
4452a7af | 1183 | { |
0c530ab8 A |
1184 | if (*count < x86_FLOAT_STATE32_COUNT) |
1185 | return(KERN_INVALID_ARGUMENT); | |
1186 | ||
1187 | if (thread_is_64bit(thr_act)) | |
1188 | return(KERN_INVALID_ARGUMENT); | |
1189 | ||
1190 | *count = x86_FLOAT_STATE32_COUNT; | |
1191 | ||
060df5ea | 1192 | return fpu_get_fxstate(thr_act, tstate, flavor); |
21362eb3 | 1193 | } |
89b3af67 | 1194 | |
0c530ab8 A |
1195 | case x86_FLOAT_STATE64: |
1196 | { | |
1197 | if (*count < x86_FLOAT_STATE64_COUNT) | |
1198 | return(KERN_INVALID_ARGUMENT); | |
1199 | ||
1200 | if ( !thread_is_64bit(thr_act)) | |
1201 | return(KERN_INVALID_ARGUMENT); | |
1202 | ||
1203 | *count = x86_FLOAT_STATE64_COUNT; | |
1204 | ||
060df5ea | 1205 | return fpu_get_fxstate(thr_act, tstate, flavor); |
0c530ab8 A |
1206 | } |
1207 | ||
1208 | case x86_FLOAT_STATE: | |
1209 | { | |
1210 | x86_float_state_t *state; | |
1211 | kern_return_t kret; | |
1212 | ||
1213 | if (*count < x86_FLOAT_STATE_COUNT) | |
1214 | return(KERN_INVALID_ARGUMENT); | |
1215 | ||
1216 | state = (x86_float_state_t *)tstate; | |
1217 | ||
1218 | /* | |
1219 | * no need to bzero... currently | |
1220 | * x86_FLOAT_STATE64_COUNT == x86_FLOAT_STATE32_COUNT | |
1221 | */ | |
1222 | if (thread_is_64bit(thr_act)) { | |
1223 | state->fsh.flavor = x86_FLOAT_STATE64; | |
1224 | state->fsh.count = x86_FLOAT_STATE64_COUNT; | |
1225 | ||
060df5ea | 1226 | kret = fpu_get_fxstate(thr_act, (thread_state_t)&state->ufs.fs64, x86_FLOAT_STATE64); |
0c530ab8 A |
1227 | } else { |
1228 | state->fsh.flavor = x86_FLOAT_STATE32; | |
1229 | state->fsh.count = x86_FLOAT_STATE32_COUNT; | |
1230 | ||
060df5ea | 1231 | kret = fpu_get_fxstate(thr_act, (thread_state_t)&state->ufs.fs32, x86_FLOAT_STATE32); |
0c530ab8 A |
1232 | } |
1233 | *count = x86_FLOAT_STATE_COUNT; | |
1234 | ||
1235 | return(kret); | |
1236 | } | |
1237 | ||
bd504ef0 | 1238 | case x86_AVX_STATE32: |
5ba3f43e A |
1239 | #if !defined(RC_HIDE_XNU_J137) |
1240 | case x86_AVX512_STATE32: | |
1241 | #endif | |
bd504ef0 | 1242 | { |
5ba3f43e | 1243 | if (*count != _MachineStateCount[flavor]) |
060df5ea A |
1244 | return(KERN_INVALID_ARGUMENT); |
1245 | ||
1246 | if (thread_is_64bit(thr_act)) | |
1247 | return(KERN_INVALID_ARGUMENT); | |
1248 | ||
5ba3f43e | 1249 | *count = _MachineStateCount[flavor]; |
060df5ea A |
1250 | |
1251 | return fpu_get_fxstate(thr_act, tstate, flavor); | |
bd504ef0 | 1252 | } |
060df5ea | 1253 | |
bd504ef0 | 1254 | case x86_AVX_STATE64: |
5ba3f43e A |
1255 | #if !defined(RC_HIDE_XNU_J137) |
1256 | case x86_AVX512_STATE64: | |
1257 | #endif | |
bd504ef0 | 1258 | { |
5ba3f43e | 1259 | if (*count != _MachineStateCount[flavor]) |
060df5ea A |
1260 | return(KERN_INVALID_ARGUMENT); |
1261 | ||
1262 | if ( !thread_is_64bit(thr_act)) | |
1263 | return(KERN_INVALID_ARGUMENT); | |
1264 | ||
5ba3f43e | 1265 | *count = _MachineStateCount[flavor]; |
060df5ea A |
1266 | |
1267 | return fpu_get_fxstate(thr_act, tstate, flavor); | |
bd504ef0 A |
1268 | } |
1269 | ||
1270 | case x86_AVX_STATE: | |
5ba3f43e A |
1271 | #if !defined(RC_HIDE_XNU_J137) |
1272 | case x86_AVX512_STATE: | |
1273 | #endif | |
bd504ef0 A |
1274 | { |
1275 | x86_avx_state_t *state; | |
5ba3f43e | 1276 | thread_state_t fstate; |
bd504ef0 | 1277 | |
5ba3f43e | 1278 | if (*count < _MachineStateCount[flavor]) |
bd504ef0 A |
1279 | return(KERN_INVALID_ARGUMENT); |
1280 | ||
5ba3f43e | 1281 | *count = _MachineStateCount[flavor]; |
bd504ef0 A |
1282 | state = (x86_avx_state_t *)tstate; |
1283 | ||
5ba3f43e A |
1284 | bzero((char *)state, *count * sizeof(int)); |
1285 | ||
bd504ef0 | 1286 | if (thread_is_64bit(thr_act)) { |
5ba3f43e A |
1287 | flavor -= 1; /* 64-bit flavor */ |
1288 | fstate = (thread_state_t) &state->ufs.as64; | |
bd504ef0 | 1289 | } else { |
5ba3f43e A |
1290 | flavor -= 2; /* 32-bit flavor */ |
1291 | fstate = (thread_state_t) &state->ufs.as32; | |
bd504ef0 | 1292 | } |
5ba3f43e A |
1293 | state->ash.flavor = flavor; |
1294 | state->ash.count = _MachineStateCount[flavor]; | |
bd504ef0 | 1295 | |
5ba3f43e | 1296 | return fpu_get_fxstate(thr_act, fstate, flavor); |
bd504ef0 | 1297 | } |
060df5ea | 1298 | |
0c530ab8 A |
1299 | case x86_THREAD_STATE32: |
1300 | { | |
1301 | if (*count < x86_THREAD_STATE32_COUNT) | |
1302 | return(KERN_INVALID_ARGUMENT); | |
1303 | ||
1304 | if (thread_is_64bit(thr_act)) | |
1305 | return(KERN_INVALID_ARGUMENT); | |
1306 | ||
1307 | *count = x86_THREAD_STATE32_COUNT; | |
1308 | ||
1309 | get_thread_state32(thr_act, (x86_thread_state32_t *)tstate); | |
6601e61a | 1310 | break; |
0c530ab8 | 1311 | } |
89b3af67 | 1312 | |
0c530ab8 A |
1313 | case x86_THREAD_STATE64: |
1314 | { | |
1315 | if (*count < x86_THREAD_STATE64_COUNT) | |
4452a7af | 1316 | return(KERN_INVALID_ARGUMENT); |
0c530ab8 A |
1317 | |
1318 | if ( !thread_is_64bit(thr_act)) | |
1319 | return(KERN_INVALID_ARGUMENT); | |
1320 | ||
1321 | *count = x86_THREAD_STATE64_COUNT; | |
1322 | ||
1323 | get_thread_state64(thr_act, (x86_thread_state64_t *)tstate); | |
1324 | break; | |
21362eb3 | 1325 | } |
89b3af67 | 1326 | |
0c530ab8 A |
1327 | case x86_THREAD_STATE: |
1328 | { | |
1329 | x86_thread_state_t *state; | |
4452a7af | 1330 | |
0c530ab8 | 1331 | if (*count < x86_THREAD_STATE_COUNT) |
4452a7af A |
1332 | return(KERN_INVALID_ARGUMENT); |
1333 | ||
0c530ab8 | 1334 | state = (x86_thread_state_t *)tstate; |
4452a7af | 1335 | |
0c530ab8 | 1336 | bzero((char *)state, sizeof(x86_thread_state_t)); |
4452a7af | 1337 | |
0c530ab8 A |
1338 | if (thread_is_64bit(thr_act)) { |
1339 | state->tsh.flavor = x86_THREAD_STATE64; | |
1340 | state->tsh.count = x86_THREAD_STATE64_COUNT; | |
4452a7af | 1341 | |
0c530ab8 | 1342 | get_thread_state64(thr_act, &state->uts.ts64); |
4452a7af | 1343 | } else { |
0c530ab8 A |
1344 | state->tsh.flavor = x86_THREAD_STATE32; |
1345 | state->tsh.count = x86_THREAD_STATE32_COUNT; | |
4452a7af | 1346 | |
0c530ab8 | 1347 | get_thread_state32(thr_act, &state->uts.ts32); |
4452a7af | 1348 | } |
0c530ab8 A |
1349 | *count = x86_THREAD_STATE_COUNT; |
1350 | ||
1351 | break; | |
1352 | } | |
1353 | ||
1354 | ||
1355 | case x86_EXCEPTION_STATE32: | |
1356 | { | |
1357 | if (*count < x86_EXCEPTION_STATE32_COUNT) | |
1358 | return(KERN_INVALID_ARGUMENT); | |
1359 | ||
1360 | if (thread_is_64bit(thr_act)) | |
1361 | return(KERN_INVALID_ARGUMENT); | |
1362 | ||
1363 | *count = x86_EXCEPTION_STATE32_COUNT; | |
4452a7af | 1364 | |
0c530ab8 | 1365 | get_exception_state32(thr_act, (x86_exception_state32_t *)tstate); |
6d2010ae A |
1366 | /* |
1367 | * Suppress the cpu number for binary compatibility | |
1368 | * of this deprecated state. | |
1369 | */ | |
1370 | ((x86_exception_state32_t *)tstate)->cpu = 0; | |
4452a7af | 1371 | break; |
6601e61a | 1372 | } |
4452a7af | 1373 | |
0c530ab8 | 1374 | case x86_EXCEPTION_STATE64: |
6601e61a | 1375 | { |
0c530ab8 A |
1376 | if (*count < x86_EXCEPTION_STATE64_COUNT) |
1377 | return(KERN_INVALID_ARGUMENT); | |
4452a7af | 1378 | |
0c530ab8 A |
1379 | if ( !thread_is_64bit(thr_act)) |
1380 | return(KERN_INVALID_ARGUMENT); | |
4452a7af | 1381 | |
0c530ab8 | 1382 | *count = x86_EXCEPTION_STATE64_COUNT; |
4452a7af | 1383 | |
0c530ab8 | 1384 | get_exception_state64(thr_act, (x86_exception_state64_t *)tstate); |
6d2010ae A |
1385 | /* |
1386 | * Suppress the cpu number for binary compatibility | |
1387 | * of this deprecated state. | |
1388 | */ | |
1389 | ((x86_exception_state64_t *)tstate)->cpu = 0; | |
4452a7af | 1390 | break; |
6601e61a | 1391 | } |
4452a7af | 1392 | |
0c530ab8 A |
1393 | case x86_EXCEPTION_STATE: |
1394 | { | |
1395 | x86_exception_state_t *state; | |
1396 | ||
1397 | if (*count < x86_EXCEPTION_STATE_COUNT) | |
1398 | return(KERN_INVALID_ARGUMENT); | |
1399 | ||
1400 | state = (x86_exception_state_t *)tstate; | |
1401 | ||
1402 | bzero((char *)state, sizeof(x86_exception_state_t)); | |
1403 | ||
1404 | if (thread_is_64bit(thr_act)) { | |
1405 | state->esh.flavor = x86_EXCEPTION_STATE64; | |
1406 | state->esh.count = x86_EXCEPTION_STATE64_COUNT; | |
1407 | ||
1408 | get_exception_state64(thr_act, &state->ues.es64); | |
1409 | } else { | |
1410 | state->esh.flavor = x86_EXCEPTION_STATE32; | |
1411 | state->esh.count = x86_EXCEPTION_STATE32_COUNT; | |
1412 | ||
1413 | get_exception_state32(thr_act, &state->ues.es32); | |
1414 | } | |
1415 | *count = x86_EXCEPTION_STATE_COUNT; | |
1416 | ||
1417 | break; | |
1418 | } | |
1419 | case x86_DEBUG_STATE32: | |
1420 | { | |
1421 | if (*count < x86_DEBUG_STATE32_COUNT) | |
1422 | return(KERN_INVALID_ARGUMENT); | |
1423 | ||
1424 | if (thread_is_64bit(thr_act)) | |
1425 | return(KERN_INVALID_ARGUMENT); | |
1426 | ||
1427 | get_debug_state32(thr_act, (x86_debug_state32_t *)tstate); | |
1428 | ||
1429 | *count = x86_DEBUG_STATE32_COUNT; | |
1430 | ||
1431 | break; | |
1432 | } | |
1433 | case x86_DEBUG_STATE64: | |
1434 | { | |
1435 | if (*count < x86_DEBUG_STATE64_COUNT) | |
1436 | return(KERN_INVALID_ARGUMENT); | |
1437 | ||
1438 | if (!thread_is_64bit(thr_act)) | |
1439 | return(KERN_INVALID_ARGUMENT); | |
1440 | ||
1441 | get_debug_state64(thr_act, (x86_debug_state64_t *)tstate); | |
1442 | ||
1443 | *count = x86_DEBUG_STATE64_COUNT; | |
1444 | ||
1c79356b A |
1445 | break; |
1446 | } | |
0c530ab8 A |
1447 | case x86_DEBUG_STATE: |
1448 | { | |
1449 | x86_debug_state_t *state; | |
1450 | ||
1451 | if (*count < x86_DEBUG_STATE_COUNT) | |
1452 | return(KERN_INVALID_ARGUMENT); | |
1453 | ||
1454 | state = (x86_debug_state_t *)tstate; | |
1455 | ||
1456 | bzero(state, sizeof *state); | |
1457 | ||
1458 | if (thread_is_64bit(thr_act)) { | |
1459 | state->dsh.flavor = x86_DEBUG_STATE64; | |
1460 | state->dsh.count = x86_DEBUG_STATE64_COUNT; | |
1461 | ||
1462 | get_debug_state64(thr_act, &state->uds.ds64); | |
1463 | } else { | |
1464 | state->dsh.flavor = x86_DEBUG_STATE32; | |
1465 | state->dsh.count = x86_DEBUG_STATE32_COUNT; | |
1c79356b | 1466 | |
0c530ab8 A |
1467 | get_debug_state32(thr_act, &state->uds.ds32); |
1468 | } | |
1469 | *count = x86_DEBUG_STATE_COUNT; | |
1470 | break; | |
1471 | } | |
2d21ac55 | 1472 | default: |
1c79356b A |
1473 | return(KERN_INVALID_ARGUMENT); |
1474 | } | |
1475 | ||
1476 | return(KERN_SUCCESS); | |
1477 | } | |
1478 | ||
0c530ab8 A |
1479 | kern_return_t |
1480 | machine_thread_get_kern_state( | |
1481 | thread_t thread, | |
1482 | thread_flavor_t flavor, | |
1483 | thread_state_t tstate, | |
1484 | mach_msg_type_number_t *count) | |
1485 | { | |
b0d623f7 | 1486 | x86_saved_state_t *int_state = current_cpu_datap()->cpu_int_state; |
0c530ab8 A |
1487 | |
1488 | /* | |
1489 | * This works only for an interrupted kernel thread | |
1490 | */ | |
b0d623f7 | 1491 | if (thread != current_thread() || int_state == NULL) |
0c530ab8 A |
1492 | return KERN_FAILURE; |
1493 | ||
b0d623f7 A |
1494 | switch (flavor) { |
1495 | case x86_THREAD_STATE32: { | |
1496 | x86_thread_state32_t *state; | |
1497 | x86_saved_state32_t *saved_state; | |
1498 | ||
1499 | if (!is_saved_state32(int_state) || | |
1500 | *count < x86_THREAD_STATE32_COUNT) | |
1501 | return (KERN_INVALID_ARGUMENT); | |
1502 | ||
1503 | state = (x86_thread_state32_t *) tstate; | |
0c530ab8 | 1504 | |
b0d623f7 A |
1505 | saved_state = saved_state32(int_state); |
1506 | /* | |
1507 | * General registers. | |
1508 | */ | |
1509 | state->eax = saved_state->eax; | |
1510 | state->ebx = saved_state->ebx; | |
1511 | state->ecx = saved_state->ecx; | |
1512 | state->edx = saved_state->edx; | |
1513 | state->edi = saved_state->edi; | |
1514 | state->esi = saved_state->esi; | |
1515 | state->ebp = saved_state->ebp; | |
1516 | state->esp = saved_state->uesp; | |
1517 | state->eflags = saved_state->efl; | |
1518 | state->eip = saved_state->eip; | |
1519 | state->cs = saved_state->cs; | |
1520 | state->ss = saved_state->ss; | |
1521 | state->ds = saved_state->ds & 0xffff; | |
1522 | state->es = saved_state->es & 0xffff; | |
1523 | state->fs = saved_state->fs & 0xffff; | |
1524 | state->gs = saved_state->gs & 0xffff; | |
1525 | ||
1526 | *count = x86_THREAD_STATE32_COUNT; | |
2d21ac55 | 1527 | |
b0d623f7 A |
1528 | return KERN_SUCCESS; |
1529 | } | |
1530 | ||
1531 | case x86_THREAD_STATE64: { | |
1532 | x86_thread_state64_t *state; | |
1533 | x86_saved_state64_t *saved_state; | |
1534 | ||
1535 | if (!is_saved_state64(int_state) || | |
1536 | *count < x86_THREAD_STATE64_COUNT) | |
1537 | return (KERN_INVALID_ARGUMENT); | |
1538 | ||
1539 | state = (x86_thread_state64_t *) tstate; | |
1540 | ||
1541 | saved_state = saved_state64(int_state); | |
1542 | /* | |
1543 | * General registers. | |
1544 | */ | |
1545 | state->rax = saved_state->rax; | |
1546 | state->rbx = saved_state->rbx; | |
1547 | state->rcx = saved_state->rcx; | |
1548 | state->rdx = saved_state->rdx; | |
1549 | state->rdi = saved_state->rdi; | |
1550 | state->rsi = saved_state->rsi; | |
1551 | state->rbp = saved_state->rbp; | |
1552 | state->rsp = saved_state->isf.rsp; | |
1553 | state->r8 = saved_state->r8; | |
1554 | state->r9 = saved_state->r9; | |
1555 | state->r10 = saved_state->r10; | |
1556 | state->r11 = saved_state->r11; | |
1557 | state->r12 = saved_state->r12; | |
1558 | state->r13 = saved_state->r13; | |
1559 | state->r14 = saved_state->r14; | |
1560 | state->r15 = saved_state->r15; | |
1561 | ||
1562 | state->rip = saved_state->isf.rip; | |
1563 | state->rflags = saved_state->isf.rflags; | |
1564 | state->cs = saved_state->isf.cs; | |
1565 | state->fs = saved_state->fs & 0xffff; | |
1566 | state->gs = saved_state->gs & 0xffff; | |
1567 | *count = x86_THREAD_STATE64_COUNT; | |
1568 | ||
1569 | return KERN_SUCCESS; | |
1570 | } | |
1571 | ||
1572 | case x86_THREAD_STATE: { | |
1573 | x86_thread_state_t *state = NULL; | |
1574 | ||
1575 | if (*count < x86_THREAD_STATE_COUNT) | |
1576 | return (KERN_INVALID_ARGUMENT); | |
1577 | ||
1578 | state = (x86_thread_state_t *) tstate; | |
1579 | ||
1580 | if (is_saved_state32(int_state)) { | |
1581 | x86_saved_state32_t *saved_state = saved_state32(int_state); | |
1582 | ||
1583 | state->tsh.flavor = x86_THREAD_STATE32; | |
1584 | state->tsh.count = x86_THREAD_STATE32_COUNT; | |
0c530ab8 | 1585 | |
0c530ab8 A |
1586 | /* |
1587 | * General registers. | |
1588 | */ | |
b0d623f7 A |
1589 | state->uts.ts32.eax = saved_state->eax; |
1590 | state->uts.ts32.ebx = saved_state->ebx; | |
1591 | state->uts.ts32.ecx = saved_state->ecx; | |
1592 | state->uts.ts32.edx = saved_state->edx; | |
1593 | state->uts.ts32.edi = saved_state->edi; | |
1594 | state->uts.ts32.esi = saved_state->esi; | |
1595 | state->uts.ts32.ebp = saved_state->ebp; | |
1596 | state->uts.ts32.esp = saved_state->uesp; | |
1597 | state->uts.ts32.eflags = saved_state->efl; | |
1598 | state->uts.ts32.eip = saved_state->eip; | |
1599 | state->uts.ts32.cs = saved_state->cs; | |
1600 | state->uts.ts32.ss = saved_state->ss; | |
1601 | state->uts.ts32.ds = saved_state->ds & 0xffff; | |
1602 | state->uts.ts32.es = saved_state->es & 0xffff; | |
1603 | state->uts.ts32.fs = saved_state->fs & 0xffff; | |
1604 | state->uts.ts32.gs = saved_state->gs & 0xffff; | |
1605 | } else if (is_saved_state64(int_state)) { | |
1606 | x86_saved_state64_t *saved_state = saved_state64(int_state); | |
0c530ab8 | 1607 | |
b0d623f7 A |
1608 | state->tsh.flavor = x86_THREAD_STATE64; |
1609 | state->tsh.count = x86_THREAD_STATE64_COUNT; | |
1610 | ||
1611 | /* | |
1612 | * General registers. | |
1613 | */ | |
1614 | state->uts.ts64.rax = saved_state->rax; | |
1615 | state->uts.ts64.rbx = saved_state->rbx; | |
1616 | state->uts.ts64.rcx = saved_state->rcx; | |
1617 | state->uts.ts64.rdx = saved_state->rdx; | |
1618 | state->uts.ts64.rdi = saved_state->rdi; | |
1619 | state->uts.ts64.rsi = saved_state->rsi; | |
1620 | state->uts.ts64.rbp = saved_state->rbp; | |
1621 | state->uts.ts64.rsp = saved_state->isf.rsp; | |
1622 | state->uts.ts64.r8 = saved_state->r8; | |
1623 | state->uts.ts64.r9 = saved_state->r9; | |
1624 | state->uts.ts64.r10 = saved_state->r10; | |
1625 | state->uts.ts64.r11 = saved_state->r11; | |
1626 | state->uts.ts64.r12 = saved_state->r12; | |
1627 | state->uts.ts64.r13 = saved_state->r13; | |
1628 | state->uts.ts64.r14 = saved_state->r14; | |
1629 | state->uts.ts64.r15 = saved_state->r15; | |
1630 | ||
1631 | state->uts.ts64.rip = saved_state->isf.rip; | |
1632 | state->uts.ts64.rflags = saved_state->isf.rflags; | |
1633 | state->uts.ts64.cs = saved_state->isf.cs; | |
1634 | state->uts.ts64.fs = saved_state->fs & 0xffff; | |
1635 | state->uts.ts64.gs = saved_state->gs & 0xffff; | |
1636 | } else { | |
1637 | panic("unknown thread state"); | |
0c530ab8 | 1638 | } |
b0d623f7 A |
1639 | |
1640 | *count = x86_THREAD_STATE_COUNT; | |
1641 | return KERN_SUCCESS; | |
1642 | } | |
2d21ac55 | 1643 | } |
0c530ab8 A |
1644 | return KERN_FAILURE; |
1645 | } | |
1646 | ||
1647 | ||
0c530ab8 | 1648 | void |
2d21ac55 | 1649 | machine_thread_switch_addrmode(thread_t thread) |
0c530ab8 | 1650 | { |
2d21ac55 A |
1651 | /* |
1652 | * We don't want to be preempted until we're done | |
1653 | * - particularly if we're switching the current thread | |
1654 | */ | |
1655 | disable_preemption(); | |
0c530ab8 | 1656 | |
2d21ac55 | 1657 | /* |
6d2010ae A |
1658 | * Reset the state saveareas. As we're resetting, we anticipate no |
1659 | * memory allocations in this path. | |
2d21ac55 | 1660 | */ |
0c530ab8 A |
1661 | machine_thread_create(thread, thread->task); |
1662 | ||
5ba3f43e A |
1663 | /* Adjust FPU state */ |
1664 | fpu_switch_addrmode(thread, task_has_64BitAddr(thread->task)); | |
1665 | ||
0c530ab8 | 1666 | /* If we're switching ourselves, reset the pcb addresses etc. */ |
c910b4d9 | 1667 | if (thread == current_thread()) { |
6d2010ae | 1668 | boolean_t istate = ml_set_interrupts_enabled(FALSE); |
6d2010ae A |
1669 | act_machine_switch_pcb(NULL, thread); |
1670 | ml_set_interrupts_enabled(istate); | |
c910b4d9 | 1671 | } |
2d21ac55 | 1672 | enable_preemption(); |
1c79356b A |
1673 | } |
1674 | ||
0c530ab8 A |
1675 | |
1676 | ||
1c79356b A |
1677 | /* |
1678 | * This is used to set the current thr_act/thread | |
1679 | * when starting up a new processor | |
1680 | */ | |
1681 | void | |
b0d623f7 | 1682 | machine_set_current_thread(thread_t thread) |
1c79356b | 1683 | { |
0c530ab8 | 1684 | current_cpu_datap()->cpu_active_thread = thread; |
1c79356b A |
1685 | } |
1686 | ||
1c79356b | 1687 | |
1c79356b A |
1688 | /* |
1689 | * Perform machine-dependent per-thread initializations | |
1690 | */ | |
1691 | void | |
55e303ae | 1692 | machine_thread_init(void) |
1c79356b | 1693 | { |
39236c6e A |
1694 | iss_zone = zinit(sizeof(x86_saved_state_t), |
1695 | thread_max * sizeof(x86_saved_state_t), | |
1696 | THREAD_CHUNK * sizeof(x86_saved_state_t), | |
1697 | "x86_64 saved state"); | |
0c530ab8 | 1698 | |
39236c6e A |
1699 | ids_zone = zinit(sizeof(x86_debug_state64_t), |
1700 | thread_max * sizeof(x86_debug_state64_t), | |
1701 | THREAD_CHUNK * sizeof(x86_debug_state64_t), | |
1702 | "x86_64 debug state"); | |
1c79356b | 1703 | |
39236c6e | 1704 | fpu_module_init(); |
1c79356b A |
1705 | } |
1706 | ||
1c79356b | 1707 | |
91447636 A |
1708 | |
1709 | user_addr_t | |
1710 | get_useraddr(void) | |
1c79356b | 1711 | { |
91447636 | 1712 | thread_t thr_act = current_thread(); |
1c79356b | 1713 | |
0c530ab8 A |
1714 | if (thread_is_64bit(thr_act)) { |
1715 | x86_saved_state64_t *iss64; | |
1716 | ||
1717 | iss64 = USER_REGS64(thr_act); | |
1718 | ||
1719 | return(iss64->isf.rip); | |
1720 | } else { | |
1721 | x86_saved_state32_t *iss32; | |
4452a7af | 1722 | |
0c530ab8 A |
1723 | iss32 = USER_REGS32(thr_act); |
1724 | ||
1725 | return(iss32->eip); | |
1726 | } | |
1c79356b A |
1727 | } |
1728 | ||
1c79356b A |
1729 | /* |
1730 | * detach and return a kernel stack from a thread | |
1731 | */ | |
1732 | ||
1733 | vm_offset_t | |
55e303ae | 1734 | machine_stack_detach(thread_t thread) |
1c79356b | 1735 | { |
0c530ab8 | 1736 | vm_offset_t stack; |
1c79356b | 1737 | |
0c530ab8 | 1738 | KERNEL_DEBUG(MACHDBG_CODE(DBG_MACH_SCHED, MACH_STACK_DETACH), |
b0d623f7 | 1739 | (uintptr_t)thread_tid(thread), thread->priority, |
0c530ab8 A |
1740 | thread->sched_pri, 0, |
1741 | 0); | |
1c79356b | 1742 | |
0c530ab8 A |
1743 | stack = thread->kernel_stack; |
1744 | thread->kernel_stack = 0; | |
1745 | ||
1746 | return (stack); | |
1c79356b A |
1747 | } |
1748 | ||
1749 | /* | |
1750 | * attach a kernel stack to a thread and initialize it | |
1751 | */ | |
1752 | ||
1753 | void | |
91447636 A |
1754 | machine_stack_attach( |
1755 | thread_t thread, | |
1756 | vm_offset_t stack) | |
1c79356b | 1757 | { |
b0d623f7 | 1758 | struct x86_kernel_state *statep; |
1c79356b | 1759 | |
0c530ab8 | 1760 | KERNEL_DEBUG(MACHDBG_CODE(DBG_MACH_SCHED, MACH_STACK_ATTACH), |
b0d623f7 | 1761 | (uintptr_t)thread_tid(thread), thread->priority, |
0c530ab8 | 1762 | thread->sched_pri, 0, 0); |
1c79356b | 1763 | |
0c530ab8 A |
1764 | assert(stack); |
1765 | thread->kernel_stack = stack; | |
5ba3f43e | 1766 | thread_initialize_kernel_state(thread); |
55e303ae | 1767 | |
0c530ab8 | 1768 | statep = STACK_IKS(stack); |
b0d623f7 A |
1769 | #if defined(__x86_64__) |
1770 | statep->k_rip = (unsigned long) Thread_continue; | |
1771 | statep->k_rbx = (unsigned long) thread_continue; | |
5ba3f43e | 1772 | statep->k_rsp = (unsigned long) STACK_IKS(stack); |
b0d623f7 | 1773 | #else |
0c530ab8 A |
1774 | statep->k_eip = (unsigned long) Thread_continue; |
1775 | statep->k_ebx = (unsigned long) thread_continue; | |
5ba3f43e | 1776 | statep->k_esp = (unsigned long) STACK_IKS(stack); |
b0d623f7 | 1777 | #endif |
1c79356b | 1778 | |
0c530ab8 | 1779 | return; |
1c79356b A |
1780 | } |
1781 | ||
1782 | /* | |
1783 | * move a stack from old to new thread | |
1784 | */ | |
1785 | ||
1786 | void | |
55e303ae | 1787 | machine_stack_handoff(thread_t old, |
1c79356b A |
1788 | thread_t new) |
1789 | { | |
0c530ab8 | 1790 | vm_offset_t stack; |
1c79356b | 1791 | |
0c530ab8 A |
1792 | assert(new); |
1793 | assert(old); | |
1c79356b | 1794 | |
39037602 | 1795 | kpc_off_cpu(old); |
b0d623f7 | 1796 | |
0c530ab8 A |
1797 | stack = old->kernel_stack; |
1798 | if (stack == old->reserved_stack) { | |
1799 | assert(new->reserved_stack); | |
1800 | old->reserved_stack = new->reserved_stack; | |
1801 | new->reserved_stack = stack; | |
1802 | } | |
1803 | old->kernel_stack = 0; | |
1804 | /* | |
1805 | * A full call to machine_stack_attach() is unnecessry | |
1806 | * because old stack is already initialized. | |
1807 | */ | |
1808 | new->kernel_stack = stack; | |
1c79356b | 1809 | |
5ba3f43e | 1810 | fpu_switch_context(old, new); |
b0d623f7 | 1811 | |
0c530ab8 A |
1812 | old->machine.specFlags &= ~OnProc; |
1813 | new->machine.specFlags |= OnProc; | |
1c79356b | 1814 | |
39037602 | 1815 | pmap_switch_context(old, new, cpu_number()); |
6d2010ae | 1816 | act_machine_switch_pcb(old, new); |
9bccf70c | 1817 | |
fe8ab488 A |
1818 | #if HYPERVISOR |
1819 | ml_hv_cswitch(old, new); | |
1820 | #endif | |
1821 | ||
0c530ab8 | 1822 | machine_set_current_thread(new); |
5ba3f43e | 1823 | thread_initialize_kernel_state(new); |
1c79356b | 1824 | |
0c530ab8 | 1825 | return; |
1c79356b | 1826 | } |
0b4e3aa0 | 1827 | |
0c530ab8 A |
1828 | |
1829 | ||
1830 | ||
1831 | struct x86_act_context32 { | |
1832 | x86_saved_state32_t ss; | |
1833 | x86_float_state32_t fs; | |
1834 | x86_debug_state32_t ds; | |
1835 | }; | |
1836 | ||
1837 | struct x86_act_context64 { | |
1838 | x86_saved_state64_t ss; | |
1839 | x86_float_state64_t fs; | |
1840 | x86_debug_state64_t ds; | |
0b4e3aa0 A |
1841 | }; |
1842 | ||
0c530ab8 A |
1843 | |
1844 | ||
0b4e3aa0 A |
1845 | void * |
1846 | act_thread_csave(void) | |
1847 | { | |
2d21ac55 | 1848 | kern_return_t kret; |
0c530ab8 | 1849 | mach_msg_type_number_t val; |
2d21ac55 | 1850 | thread_t thr_act = current_thread(); |
0c530ab8 | 1851 | |
2d21ac55 A |
1852 | if (thread_is_64bit(thr_act)) { |
1853 | struct x86_act_context64 *ic64; | |
0b4e3aa0 | 1854 | |
2d21ac55 | 1855 | ic64 = (struct x86_act_context64 *)kalloc(sizeof(struct x86_act_context64)); |
0c530ab8 A |
1856 | |
1857 | if (ic64 == (struct x86_act_context64 *)NULL) | |
2d21ac55 | 1858 | return((void *)0); |
0c530ab8 A |
1859 | |
1860 | val = x86_SAVED_STATE64_COUNT; | |
1861 | kret = machine_thread_get_state(thr_act, x86_SAVED_STATE64, | |
2d21ac55 | 1862 | (thread_state_t) &ic64->ss, &val); |
0c530ab8 | 1863 | if (kret != KERN_SUCCESS) { |
2d21ac55 | 1864 | kfree(ic64, sizeof(struct x86_act_context64)); |
0c530ab8 A |
1865 | return((void *)0); |
1866 | } | |
1867 | val = x86_FLOAT_STATE64_COUNT; | |
1868 | kret = machine_thread_get_state(thr_act, x86_FLOAT_STATE64, | |
2d21ac55 | 1869 | (thread_state_t) &ic64->fs, &val); |
0c530ab8 | 1870 | if (kret != KERN_SUCCESS) { |
2d21ac55 | 1871 | kfree(ic64, sizeof(struct x86_act_context64)); |
0c530ab8 A |
1872 | return((void *)0); |
1873 | } | |
0b4e3aa0 | 1874 | |
0c530ab8 A |
1875 | val = x86_DEBUG_STATE64_COUNT; |
1876 | kret = machine_thread_get_state(thr_act, | |
1877 | x86_DEBUG_STATE64, | |
1878 | (thread_state_t)&ic64->ds, | |
55e303ae | 1879 | &val); |
0b4e3aa0 | 1880 | if (kret != KERN_SUCCESS) { |
0c530ab8 A |
1881 | kfree(ic64, sizeof(struct x86_act_context64)); |
1882 | return((void *)0); | |
1883 | } | |
1884 | return(ic64); | |
1885 | ||
1886 | } else { | |
2d21ac55 | 1887 | struct x86_act_context32 *ic32; |
0c530ab8 | 1888 | |
2d21ac55 | 1889 | ic32 = (struct x86_act_context32 *)kalloc(sizeof(struct x86_act_context32)); |
0c530ab8 A |
1890 | |
1891 | if (ic32 == (struct x86_act_context32 *)NULL) | |
2d21ac55 | 1892 | return((void *)0); |
0c530ab8 A |
1893 | |
1894 | val = x86_SAVED_STATE32_COUNT; | |
1895 | kret = machine_thread_get_state(thr_act, x86_SAVED_STATE32, | |
2d21ac55 | 1896 | (thread_state_t) &ic32->ss, &val); |
0c530ab8 | 1897 | if (kret != KERN_SUCCESS) { |
2d21ac55 | 1898 | kfree(ic32, sizeof(struct x86_act_context32)); |
0c530ab8 | 1899 | return((void *)0); |
0b4e3aa0 | 1900 | } |
0c530ab8 A |
1901 | val = x86_FLOAT_STATE32_COUNT; |
1902 | kret = machine_thread_get_state(thr_act, x86_FLOAT_STATE32, | |
2d21ac55 | 1903 | (thread_state_t) &ic32->fs, &val); |
0c530ab8 | 1904 | if (kret != KERN_SUCCESS) { |
2d21ac55 | 1905 | kfree(ic32, sizeof(struct x86_act_context32)); |
0c530ab8 A |
1906 | return((void *)0); |
1907 | } | |
1908 | ||
1909 | val = x86_DEBUG_STATE32_COUNT; | |
1910 | kret = machine_thread_get_state(thr_act, | |
1911 | x86_DEBUG_STATE32, | |
1912 | (thread_state_t)&ic32->ds, | |
55e303ae | 1913 | &val); |
0b4e3aa0 | 1914 | if (kret != KERN_SUCCESS) { |
0c530ab8 A |
1915 | kfree(ic32, sizeof(struct x86_act_context32)); |
1916 | return((void *)0); | |
0b4e3aa0 | 1917 | } |
0c530ab8 A |
1918 | return(ic32); |
1919 | } | |
0b4e3aa0 | 1920 | } |
0c530ab8 A |
1921 | |
1922 | ||
0b4e3aa0 A |
1923 | void |
1924 | act_thread_catt(void *ctx) | |
1925 | { | |
0c530ab8 A |
1926 | thread_t thr_act = current_thread(); |
1927 | kern_return_t kret; | |
1928 | ||
1929 | if (ctx == (void *)NULL) | |
2d21ac55 | 1930 | return; |
0c530ab8 A |
1931 | |
1932 | if (thread_is_64bit(thr_act)) { | |
1933 | struct x86_act_context64 *ic64; | |
1934 | ||
1935 | ic64 = (struct x86_act_context64 *)ctx; | |
1936 | ||
1937 | kret = machine_thread_set_state(thr_act, x86_SAVED_STATE64, | |
1938 | (thread_state_t) &ic64->ss, x86_SAVED_STATE64_COUNT); | |
1939 | if (kret == KERN_SUCCESS) { | |
2d21ac55 A |
1940 | machine_thread_set_state(thr_act, x86_FLOAT_STATE64, |
1941 | (thread_state_t) &ic64->fs, x86_FLOAT_STATE64_COUNT); | |
0c530ab8 A |
1942 | } |
1943 | kfree(ic64, sizeof(struct x86_act_context64)); | |
1944 | } else { | |
1945 | struct x86_act_context32 *ic32; | |
1946 | ||
1947 | ic32 = (struct x86_act_context32 *)ctx; | |
1948 | ||
1949 | kret = machine_thread_set_state(thr_act, x86_SAVED_STATE32, | |
1950 | (thread_state_t) &ic32->ss, x86_SAVED_STATE32_COUNT); | |
1951 | if (kret == KERN_SUCCESS) { | |
060df5ea | 1952 | (void) machine_thread_set_state(thr_act, x86_FLOAT_STATE32, |
0c530ab8 | 1953 | (thread_state_t) &ic32->fs, x86_FLOAT_STATE32_COUNT); |
0c530ab8 A |
1954 | } |
1955 | kfree(ic32, sizeof(struct x86_act_context32)); | |
1956 | } | |
0b4e3aa0 A |
1957 | } |
1958 | ||
0c530ab8 A |
1959 | |
1960 | void act_thread_cfree(__unused void *ctx) | |
0b4e3aa0 | 1961 | { |
0c530ab8 | 1962 | /* XXX - Unused */ |
0b4e3aa0 | 1963 | } |
b0d623f7 A |
1964 | |
1965 | /* | |
1966 | * Duplicate one x86_debug_state32_t to another. "all" parameter | |
1967 | * chooses whether dr4 and dr5 are copied (they are never meant | |
1968 | * to be installed when we do machine_task_set_state() or | |
1969 | * machine_thread_set_state()). | |
1970 | */ | |
1971 | void | |
1972 | copy_debug_state32( | |
1973 | x86_debug_state32_t *src, | |
1974 | x86_debug_state32_t *target, | |
1975 | boolean_t all) | |
1976 | { | |
1977 | if (all) { | |
1978 | target->dr4 = src->dr4; | |
1979 | target->dr5 = src->dr5; | |
1980 | } | |
1981 | ||
1982 | target->dr0 = src->dr0; | |
1983 | target->dr1 = src->dr1; | |
1984 | target->dr2 = src->dr2; | |
1985 | target->dr3 = src->dr3; | |
1986 | target->dr6 = src->dr6; | |
1987 | target->dr7 = src->dr7; | |
1988 | } | |
1989 | ||
1990 | /* | |
1991 | * Duplicate one x86_debug_state64_t to another. "all" parameter | |
1992 | * chooses whether dr4 and dr5 are copied (they are never meant | |
1993 | * to be installed when we do machine_task_set_state() or | |
1994 | * machine_thread_set_state()). | |
1995 | */ | |
1996 | void | |
1997 | copy_debug_state64( | |
1998 | x86_debug_state64_t *src, | |
1999 | x86_debug_state64_t *target, | |
2000 | boolean_t all) | |
2001 | { | |
2002 | if (all) { | |
2003 | target->dr4 = src->dr4; | |
2004 | target->dr5 = src->dr5; | |
2005 | } | |
2006 | ||
2007 | target->dr0 = src->dr0; | |
2008 | target->dr1 = src->dr1; | |
2009 | target->dr2 = src->dr2; | |
2010 | target->dr3 = src->dr3; | |
2011 | target->dr6 = src->dr6; | |
2012 | target->dr7 = src->dr7; | |
2013 | } |