Code Review / openocd.git / blob
? search:


86bb8707e43e3f7d13279bfbe4bced0ab148eb2a
[openocd.git] / src / target / armv8.c
1 /***************************************************************************
2 * Copyright (C) 2015 by David Ung *
3 * *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
8 * *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
13 * *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 ***************************************************************************/
18
19 #ifdef HAVE_CONFIG_H
20 #include "config.h"
21 #endif
22
23 #include <helper/replacements.h>
24
25 #include "armv8.h"
26 #include "arm_disassembler.h"
27
28 #include "register.h"
29 #include <helper/binarybuffer.h>
30 #include <helper/command.h>
31
32 #include <stdlib.h>
33 #include <string.h>
34 #include <unistd.h>
35
36 #include "armv8_opcodes.h"
37 #include "target.h"
38 #include "target_type.h"
39
40 static const char * const armv8_state_strings[] = {
41 "AArch32", "Thumb", "Jazelle", "ThumbEE", "AArch64",
42 };
43
44 static const struct {
45 const char *name;
46 unsigned psr;
47 } armv8_mode_data[] = {
48 {
49 .name = "USR",
50 .psr = ARM_MODE_USR,
51 },
52 {
53 .name = "FIQ",
54 .psr = ARM_MODE_FIQ,
55 },
56 {
57 .name = "IRQ",
58 .psr = ARM_MODE_IRQ,
59 },
60 {
61 .name = "SVC",
62 .psr = ARM_MODE_SVC,
63 },
64 {
65 .name = "MON",
66 .psr = ARM_MODE_MON,
67 },
68 {
69 .name = "ABT",
70 .psr = ARM_MODE_ABT,
71 },
72 {
73 .name = "EL0T",
74 .psr = ARMV8_64_EL0T,
75 },
76 {
77 .name = "EL1T",
78 .psr = ARMV8_64_EL1T,
79 },
80 {
81 .name = "EL1H",
82 .psr = ARMV8_64_EL1H,
83 },
84 {
85 .name = "EL2T",
86 .psr = ARMV8_64_EL2T,
87 },
88 {
89 .name = "EL2H",
90 .psr = ARMV8_64_EL2H,
91 },
92 {
93 .name = "EL3T",
94 .psr = ARMV8_64_EL3T,
95 },
96 {
97 .name = "EL3H",
98 .psr = ARMV8_64_EL3H,
99 },
100 };
101
102 /** Map PSR mode bits to the name of an ARM processor operating mode. */
103 const char *armv8_mode_name(unsigned psr_mode)
104 {
105 for (unsigned i = 0; i < ARRAY_SIZE(armv8_mode_data); i++) {
106 if (armv8_mode_data[i].psr == psr_mode)
107 return armv8_mode_data[i].name;
108 }
109 LOG_ERROR("unrecognized psr mode: %#02x", psr_mode);
110 return "UNRECOGNIZED";
111 }
112
113 static int armv8_read_reg(struct armv8_common *armv8, int regnum, uint64_t *regval)
114 {
115 struct arm_dpm *dpm = &armv8->dpm;
116 int retval;
117 uint32_t value;
118 uint64_t value_64;
119
120 switch (regnum) {
121 case 0 ... 30:
122 retval = dpm->instr_read_data_dcc_64(dpm,
123 ARMV8_MSR_GP(SYSTEM_DBG_DBGDTR_EL0, regnum), &value_64);
124 break;
125 case ARMV8_SP:
126 retval = dpm->instr_read_data_r0_64(dpm,
127 ARMV8_MOVFSP_64(0), &value_64);
128 break;
129 case ARMV8_PC:
130 retval = dpm->instr_read_data_r0_64(dpm,
131 ARMV8_MRS_DLR(0), &value_64);
132 break;
133 case ARMV8_xPSR:
134 retval = dpm->instr_read_data_r0(dpm,
135 ARMV8_MRS_DSPSR(0), &value);
136 value_64 = value;
137 break;
138 case ARMV8_FPSR:
139 retval = dpm->instr_read_data_r0(dpm,
140 ARMV8_MRS_FPSR(0), &value);
141 value_64 = value;
142 break;
143 case ARMV8_FPCR:
144 retval = dpm->instr_read_data_r0(dpm,
145 ARMV8_MRS_FPCR(0), &value);
146 value_64 = value;
147 break;
148 case ARMV8_ELR_EL1:
149 retval = dpm->instr_read_data_r0_64(dpm,
150 ARMV8_MRS(SYSTEM_ELR_EL1, 0), &value_64);
151 break;
152 case ARMV8_ELR_EL2:
153 retval = dpm->instr_read_data_r0_64(dpm,
154 ARMV8_MRS(SYSTEM_ELR_EL2, 0), &value_64);
155 break;
156 case ARMV8_ELR_EL3:
157 retval = dpm->instr_read_data_r0_64(dpm,
158 ARMV8_MRS(SYSTEM_ELR_EL3, 0), &value_64);
159 break;
160 case ARMV8_ESR_EL1:
161 retval = dpm->instr_read_data_r0(dpm,
162 ARMV8_MRS(SYSTEM_ESR_EL1, 0), &value);
163 value_64 = value;
164 break;
165 case ARMV8_ESR_EL2:
166 retval = dpm->instr_read_data_r0(dpm,
167 ARMV8_MRS(SYSTEM_ESR_EL2, 0), &value);
168 value_64 = value;
169 break;
170 case ARMV8_ESR_EL3:
171 retval = dpm->instr_read_data_r0(dpm,
172 ARMV8_MRS(SYSTEM_ESR_EL3, 0), &value);
173 value_64 = value;
174 break;
175 case ARMV8_SPSR_EL1:
176 retval = dpm->instr_read_data_r0(dpm,
177 ARMV8_MRS(SYSTEM_SPSR_EL1, 0), &value);
178 value_64 = value;
179 break;
180 case ARMV8_SPSR_EL2:
181 retval = dpm->instr_read_data_r0(dpm,
182 ARMV8_MRS(SYSTEM_SPSR_EL2, 0), &value);
183 value_64 = value;
184 break;
185 case ARMV8_SPSR_EL3:
186 retval = dpm->instr_read_data_r0(dpm,
187 ARMV8_MRS(SYSTEM_SPSR_EL3, 0), &value);
188 value_64 = value;
189 break;
190 default:
191 retval = ERROR_FAIL;
192 break;
193 }
194
195 if (retval == ERROR_OK && regval != NULL)
196 *regval = value_64;
197 else
198 retval = ERROR_FAIL;
199
200 return retval;
201 }
202
203 static int armv8_read_reg_simdfp_aarch64(struct armv8_common *armv8, int regnum, uint64_t *lvalue, uint64_t *hvalue)
204 {
205 int retval = ERROR_FAIL;
206 struct arm_dpm *dpm = &armv8->dpm;
207
208 switch (regnum) {
209 case ARMV8_V0 ... ARMV8_V31:
210 retval = dpm->instr_read_data_r0_64(dpm,
211 ARMV8_MOV_GPR_VFP(0, (regnum - ARMV8_V0), 1), hvalue);
212 if (retval != ERROR_OK)
213 return retval;
214 retval = dpm->instr_read_data_r0_64(dpm,
215 ARMV8_MOV_GPR_VFP(0, (regnum - ARMV8_V0), 0), lvalue);
216 break;
217
218 default:
219 retval = ERROR_FAIL;
220 break;
221 }
222
223 return retval;
224 }
225
226 static int armv8_write_reg(struct armv8_common *armv8, int regnum, uint64_t value_64)
227 {
228 struct arm_dpm *dpm = &armv8->dpm;
229 int retval;
230 uint32_t value;
231
232 switch (regnum) {
233 case 0 ... 30:
234 retval = dpm->instr_write_data_dcc_64(dpm,
235 ARMV8_MRS(SYSTEM_DBG_DBGDTR_EL0, regnum),
236 value_64);
237 break;
238 case ARMV8_SP:
239 retval = dpm->instr_write_data_r0_64(dpm,
240 ARMV8_MOVTSP_64(0),
241 value_64);
242 break;
243 case ARMV8_PC:
244 retval = dpm->instr_write_data_r0_64(dpm,
245 ARMV8_MSR_DLR(0),
246 value_64);
247 break;
248 case ARMV8_xPSR:
249 value = value_64;
250 retval = dpm->instr_write_data_r0(dpm,
251 ARMV8_MSR_DSPSR(0),
252 value);
253 break;
254 case ARMV8_FPSR:
255 value = value_64;
256 retval = dpm->instr_write_data_r0(dpm,
257 ARMV8_MSR_FPSR(0),
258 value);
259 break;
260 case ARMV8_FPCR:
261 value = value_64;
262 retval = dpm->instr_write_data_r0(dpm,
263 ARMV8_MSR_FPCR(0),
264 value);
265 break;
266 /* registers clobbered by taking exception in debug state */
267 case ARMV8_ELR_EL1:
268 retval = dpm->instr_write_data_r0_64(dpm,
269 ARMV8_MSR_GP(SYSTEM_ELR_EL1, 0), value_64);
270 break;
271 case ARMV8_ELR_EL2:
272 retval = dpm->instr_write_data_r0_64(dpm,
273 ARMV8_MSR_GP(SYSTEM_ELR_EL2, 0), value_64);
274 break;
275 case ARMV8_ELR_EL3:
276 retval = dpm->instr_write_data_r0_64(dpm,
277 ARMV8_MSR_GP(SYSTEM_ELR_EL3, 0), value_64);
278 break;
279 case ARMV8_ESR_EL1:
280 value = value_64;
281 retval = dpm->instr_write_data_r0(dpm,
282 ARMV8_MSR_GP(SYSTEM_ESR_EL1, 0), value);
283 break;
284 case ARMV8_ESR_EL2:
285 value = value_64;
286 retval = dpm->instr_write_data_r0(dpm,
287 ARMV8_MSR_GP(SYSTEM_ESR_EL2, 0), value);
288 break;
289 case ARMV8_ESR_EL3:
290 value = value_64;
291 retval = dpm->instr_write_data_r0(dpm,
292 ARMV8_MSR_GP(SYSTEM_ESR_EL3, 0), value);
293 break;
294 case ARMV8_SPSR_EL1:
295 value = value_64;
296 retval = dpm->instr_write_data_r0(dpm,
297 ARMV8_MSR_GP(SYSTEM_SPSR_EL1, 0), value);
298 break;
299 case ARMV8_SPSR_EL2:
300 value = value_64;
301 retval = dpm->instr_write_data_r0(dpm,
302 ARMV8_MSR_GP(SYSTEM_SPSR_EL2, 0), value);
303 break;
304 case ARMV8_SPSR_EL3:
305 value = value_64;
306 retval = dpm->instr_write_data_r0(dpm,
307 ARMV8_MSR_GP(SYSTEM_SPSR_EL3, 0), value);
308 break;
309 default:
310 retval = ERROR_FAIL;
311 break;
312 }
313
314 return retval;
315 }
316
317 static int armv8_write_reg_simdfp_aarch64(struct armv8_common *armv8, int regnum, uint64_t lvalue, uint64_t hvalue)
318 {
319 int retval = ERROR_FAIL;
320 struct arm_dpm *dpm = &armv8->dpm;
321
322 switch (regnum) {
323 case ARMV8_V0 ... ARMV8_V31:
324 retval = dpm->instr_write_data_r0_64(dpm,
325 ARMV8_MOV_VFP_GPR((regnum - ARMV8_V0), 0, 1), hvalue);
326 if (retval != ERROR_OK)
327 return retval;
328 retval = dpm->instr_write_data_r0_64(dpm,
329 ARMV8_MOV_VFP_GPR((regnum - ARMV8_V0), 0, 0), lvalue);
330 break;
331
332 default:
333 retval = ERROR_FAIL;
334 break;
335 }
336
337 return retval;
338 }
339
340 static int armv8_read_reg32(struct armv8_common *armv8, int regnum, uint64_t *regval)
341 {
342 struct arm_dpm *dpm = &armv8->dpm;
343 uint32_t value = 0;
344 int retval;
345
346 switch (regnum) {
347 case ARMV8_R0 ... ARMV8_R14:
348 /* return via DCC: "MCR p14, 0, Rnum, c0, c5, 0" */
349 retval = dpm->instr_read_data_dcc(dpm,
350 ARMV4_5_MCR(14, 0, regnum, 0, 5, 0),
351 &value);
352 break;
353 case ARMV8_SP:
354 retval = dpm->instr_read_data_dcc(dpm,
355 ARMV4_5_MCR(14, 0, 13, 0, 5, 0),
356 &value);
357 break;
358 case ARMV8_PC:
359 retval = dpm->instr_read_data_r0(dpm,
360 ARMV8_MRC_DLR(0),
361 &value);
362 break;
363 case ARMV8_xPSR:
364 retval = dpm->instr_read_data_r0(dpm,
365 ARMV8_MRC_DSPSR(0),
366 &value);
367 break;
368 case ARMV8_ELR_EL1: /* mapped to LR_svc */
369 retval = dpm->instr_read_data_dcc(dpm,
370 ARMV4_5_MCR(14, 0, 14, 0, 5, 0),
371 &value);
372 break;
373 case ARMV8_ELR_EL2: /* mapped to ELR_hyp */
374 retval = dpm->instr_read_data_r0(dpm,
375 ARMV8_MRS_T1(0, 14, 0, 1),
376 &value);
377 break;
378 case ARMV8_ELR_EL3: /* mapped to LR_mon */
379 retval = dpm->instr_read_data_dcc(dpm,
380 ARMV4_5_MCR(14, 0, 14, 0, 5, 0),
381 &value);
382 break;
383 case ARMV8_ESR_EL1: /* mapped to DFSR */
384 retval = dpm->instr_read_data_r0(dpm,
385 ARMV4_5_MRC(15, 0, 0, 5, 0, 0),
386 &value);
387 break;
388 case ARMV8_ESR_EL2: /* mapped to HSR */
389 retval = dpm->instr_read_data_r0(dpm,
390 ARMV4_5_MRC(15, 4, 0, 5, 2, 0),
391 &value);
392 break;
393 case ARMV8_ESR_EL3: /* FIXME: no equivalent in aarch32? */
394 retval = ERROR_FAIL;
395 break;
396 case ARMV8_SPSR_EL1: /* mapped to SPSR_svc */
397 retval = dpm->instr_read_data_r0(dpm,
398 ARMV8_MRS_xPSR_T1(1, 0),
399 &value);
400 break;
401 case ARMV8_SPSR_EL2: /* mapped to SPSR_hyp */
402 retval = dpm->instr_read_data_r0(dpm,
403 ARMV8_MRS_xPSR_T1(1, 0),
404 &value);
405 break;
406 case ARMV8_SPSR_EL3: /* mapped to SPSR_mon */
407 retval = dpm->instr_read_data_r0(dpm,
408 ARMV8_MRS_xPSR_T1(1, 0),
409 &value);
410 break;
411 case ARMV8_FPSR:
412 /* "VMRS r0, FPSCR"; then return via DCC */
413 retval = dpm->instr_read_data_r0(dpm,
414 ARMV4_5_VMRS(0), &value);
415 break;
416 default:
417 retval = ERROR_FAIL;
418 break;
419 }
420
421 if (retval == ERROR_OK && regval != NULL)
422 *regval = value;
423
424 return retval;
425 }
426
427 static int armv8_read_reg_simdfp_aarch32(struct armv8_common *armv8, int regnum, uint64_t *lvalue, uint64_t *hvalue)
428 {
429 int retval = ERROR_FAIL;
430 struct arm_dpm *dpm = &armv8->dpm;
431 struct reg *reg_r1 = dpm->arm->core_cache->reg_list + ARMV8_R1;
432 uint32_t value_r0 = 0, value_r1 = 0;
433 unsigned num = (regnum - ARMV8_V0) << 1;
434
435 switch (regnum) {
436 case ARMV8_V0 ... ARMV8_V15:
437 /* we are going to write R1, mark it dirty */
438 reg_r1->dirty = true;
439 /* move from double word register to r0:r1: "vmov r0, r1, vm"
440 * then read r0 via dcc
441 */
442 retval = dpm->instr_read_data_r0(dpm,
443 ARMV4_5_VMOV(1, 1, 0, (num >> 4), (num & 0xf)),
444 &value_r0);
445 /* read r1 via dcc */
446 retval = dpm->instr_read_data_dcc(dpm,
447 ARMV4_5_MCR(14, 0, 1, 0, 5, 0),
448 &value_r1);
449 if (retval == ERROR_OK) {
450 *lvalue = value_r1;
451 *lvalue = ((*lvalue) << 32) | value_r0;
452 } else
453 return retval;
454
455 num++;
456 /* repeat above steps for high 64 bits of V register */
457 retval = dpm->instr_read_data_r0(dpm,
458 ARMV4_5_VMOV(1, 1, 0, (num >> 4), (num & 0xf)),
459 &value_r0);
460 retval = dpm->instr_read_data_dcc(dpm,
461 ARMV4_5_MCR(14, 0, 1, 0, 5, 0),
462 &value_r1);
463 if (retval == ERROR_OK) {
464 *hvalue = value_r1;
465 *hvalue = ((*hvalue) << 32) | value_r0;
466 } else
467 return retval;
468 break;
469 default:
470 retval = ERROR_FAIL;
471 break;
472 }
473
474 return retval;
475 }
476
477 static int armv8_write_reg32(struct armv8_common *armv8, int regnum, uint64_t value)
478 {
479 struct arm_dpm *dpm = &armv8->dpm;
480 int retval;
481
482 switch (regnum) {
483 case ARMV8_R0 ... ARMV8_R14:
484 /* load register from DCC: "MRC p14, 0, Rnum, c0, c5, 0" */
485 retval = dpm->instr_write_data_dcc(dpm,
486 ARMV4_5_MRC(14, 0, regnum, 0, 5, 0), value);
487 break;
488 case ARMV8_SP:
489 retval = dpm->instr_write_data_dcc(dpm,
490 ARMV4_5_MRC(14, 0, 13, 0, 5, 0), value);
491 break;
492 case ARMV8_PC:/* PC
493 * read r0 from DCC; then "MOV pc, r0" */
494 retval = dpm->instr_write_data_r0(dpm,
495 ARMV8_MCR_DLR(0), value);
496 break;
497 case ARMV8_xPSR: /* CPSR */
498 /* read r0 from DCC, then "MCR r0, DSPSR" */
499 retval = dpm->instr_write_data_r0(dpm,
500 ARMV8_MCR_DSPSR(0), value);
501 break;
502 case ARMV8_ELR_EL1: /* mapped to LR_svc */
503 retval = dpm->instr_write_data_dcc(dpm,
504 ARMV4_5_MRC(14, 0, 14, 0, 5, 0),
505 value);
506 break;
507 case ARMV8_ELR_EL2: /* mapped to ELR_hyp */
508 retval = dpm->instr_write_data_r0(dpm,
509 ARMV8_MSR_GP_T1(0, 14, 0, 1),
510 value);
511 break;
512 case ARMV8_ELR_EL3: /* mapped to LR_mon */
513 retval = dpm->instr_write_data_dcc(dpm,
514 ARMV4_5_MRC(14, 0, 14, 0, 5, 0),
515 value);
516 break;
517 case ARMV8_ESR_EL1: /* mapped to DFSR */
518 retval = dpm->instr_write_data_r0(dpm,
519 ARMV4_5_MCR(15, 0, 0, 5, 0, 0),
520 value);
521 break;
522 case ARMV8_ESR_EL2: /* mapped to HSR */
523 retval = dpm->instr_write_data_r0(dpm,
524 ARMV4_5_MCR(15, 4, 0, 5, 2, 0),
525 value);
526 break;
527 case ARMV8_ESR_EL3: /* FIXME: no equivalent in aarch32? */
528 retval = ERROR_FAIL;
529 break;
530 case ARMV8_SPSR_EL1: /* mapped to SPSR_svc */
531 retval = dpm->instr_write_data_r0(dpm,
532 ARMV8_MSR_GP_xPSR_T1(1, 0, 15),
533 value);
534 break;
535 case ARMV8_SPSR_EL2: /* mapped to SPSR_hyp */
536 retval = dpm->instr_write_data_r0(dpm,
537 ARMV8_MSR_GP_xPSR_T1(1, 0, 15),
538 value);
539 break;
540 case ARMV8_SPSR_EL3: /* mapped to SPSR_mon */
541 retval = dpm->instr_write_data_r0(dpm,
542 ARMV8_MSR_GP_xPSR_T1(1, 0, 15),
543 value);
544 break;
545 case ARMV8_FPSR:
546 /* move to r0 from DCC, then "VMSR FPSCR, r0" */
547 retval = dpm->instr_write_data_r0(dpm,
548 ARMV4_5_VMSR(0), value);
549 break;
550 default:
551 retval = ERROR_FAIL;
552 break;
553 }
554
555 return retval;
556
557 }
558
559 static int armv8_write_reg_simdfp_aarch32(struct armv8_common *armv8, int regnum, uint64_t lvalue, uint64_t hvalue)
560 {
561 int retval = ERROR_FAIL;
562 struct arm_dpm *dpm = &armv8->dpm;
563 struct reg *reg_r1 = dpm->arm->core_cache->reg_list + ARMV8_R1;
564 uint32_t value_r0 = 0, value_r1 = 0;
565 unsigned num = (regnum - ARMV8_V0) << 1;
566
567 switch (regnum) {
568 case ARMV8_V0 ... ARMV8_V15:
569 /* we are going to write R1, mark it dirty */
570 reg_r1->dirty = true;
571 value_r1 = lvalue >> 32;
572 value_r0 = lvalue & 0xFFFFFFFF;
573 /* write value_r1 to r1 via dcc */
574 retval = dpm->instr_write_data_dcc(dpm,
575 ARMV4_5_MRC(14, 0, 1, 0, 5, 0),
576 value_r1);
577 /* write value_r0 to r0 via dcc then,
578 * move to double word register from r0:r1: "vmov vm, r0, r1"
579 */
580 retval = dpm->instr_write_data_r0(dpm,
581 ARMV4_5_VMOV(0, 1, 0, (num >> 4), (num & 0xf)),
582 value_r0);
583
584 num++;
585 /* repeat above steps for high 64 bits of V register */
586 value_r1 = hvalue >> 32;
587 value_r0 = hvalue & 0xFFFFFFFF;
588 retval = dpm->instr_write_data_dcc(dpm,
589 ARMV4_5_MRC(14, 0, 1, 0, 5, 0),
590 value_r1);
591 retval = dpm->instr_write_data_r0(dpm,
592 ARMV4_5_VMOV(0, 1, 0, (num >> 4), (num & 0xf)),
593 value_r0);
594 break;
595 default:
596 retval = ERROR_FAIL;
597 break;
598 }
599
600 return retval;
601 }
602
603 void armv8_select_reg_access(struct armv8_common *armv8, bool is_aarch64)
604 {
605 if (is_aarch64) {
606 armv8->read_reg_u64 = armv8_read_reg;
607 armv8->write_reg_u64 = armv8_write_reg;
608 armv8->read_reg_u128 = armv8_read_reg_simdfp_aarch64;
609 armv8->write_reg_u128 = armv8_write_reg_simdfp_aarch64;
610
611 } else {
612 armv8->read_reg_u64 = armv8_read_reg32;
613 armv8->write_reg_u64 = armv8_write_reg32;
614 armv8->read_reg_u128 = armv8_read_reg_simdfp_aarch32;
615 armv8->write_reg_u128 = armv8_write_reg_simdfp_aarch32;
616 }
617 }
618
619 /* retrieve core id cluster id */
620 int armv8_read_mpidr(struct armv8_common *armv8)
621 {
622 int retval = ERROR_FAIL;
623 struct arm_dpm *dpm = armv8->arm.dpm;
624 uint32_t mpidr;
625
626 retval = dpm->prepare(dpm);
627 if (retval != ERROR_OK)
628 goto done;
629
630 retval = dpm->instr_read_data_r0(dpm, armv8_opcode(armv8, READ_REG_MPIDR), &mpidr);
631 if (retval != ERROR_OK)
632 goto done;
633 if (mpidr & 1<<31) {
634 armv8->multi_processor_system = (mpidr >> 30) & 1;
635 armv8->cluster_id = (mpidr >> 8) & 0xf;
636 armv8->cpu_id = mpidr & 0x3;
637 LOG_INFO("%s cluster %x core %x %s", target_name(armv8->arm.target),
638 armv8->cluster_id,
639 armv8->cpu_id,
640 armv8->multi_processor_system == 0 ? "multi core" : "single core");
641 } else
642 LOG_ERROR("mpidr not in multiprocessor format");
643
644 done:
645 dpm->finish(dpm);
646 return retval;
647 }
648
649 /**
650 * Configures host-side ARM records to reflect the specified CPSR.
651 * Later, code can use arm_reg_current() to map register numbers
652 * according to how they are exposed by this mode.
653 */
654 void armv8_set_cpsr(struct arm *arm, uint32_t cpsr)
655 {
656 uint32_t mode = cpsr & 0x1F;
657
658 /* NOTE: this may be called very early, before the register
659 * cache is set up. We can't defend against many errors, in
660 * particular against CPSRs that aren't valid *here* ...
661 */
662 if (arm->cpsr) {
663 buf_set_u32(arm->cpsr->value, 0, 32, cpsr);
664 arm->cpsr->valid = 1;
665 arm->cpsr->dirty = 0;
666 }
667
668 /* Older ARMs won't have the J bit */
669 enum arm_state state = 0xFF;
670
671 if ((cpsr & 0x10) != 0) {
672 /* Aarch32 state */
673 if (cpsr & (1 << 5)) { /* T */
674 if (cpsr & (1 << 24)) { /* J */
675 LOG_WARNING("ThumbEE -- incomplete support");
676 state = ARM_STATE_THUMB_EE;
677 } else
678 state = ARM_STATE_THUMB;
679 } else {
680 if (cpsr & (1 << 24)) { /* J */
681 LOG_ERROR("Jazelle state handling is BROKEN!");
682 state = ARM_STATE_JAZELLE;
683 } else
684 state = ARM_STATE_ARM;
685 }
686 } else {
687 /* Aarch64 state */
688 state = ARM_STATE_AARCH64;
689 }
690
691 arm->core_state = state;
692 arm->core_mode = mode;
693
694 LOG_DEBUG("set CPSR %#8.8x: %s mode, %s state", (unsigned) cpsr,
695 armv8_mode_name(arm->core_mode),
696 armv8_state_strings[arm->core_state]);
697 }
698
699 static void armv8_show_fault_registers32(struct armv8_common *armv8)
700 {
701 uint32_t dfsr, ifsr, dfar, ifar;
702 struct arm_dpm *dpm = armv8->arm.dpm;
703 int retval;
704
705 retval = dpm->prepare(dpm);
706 if (retval != ERROR_OK)
707 return;
708
709 /* ARMV4_5_MRC(cpnum, op1, r0, CRn, CRm, op2) */
710
711 /* c5/c0 - {data, instruction} fault status registers */
712 retval = dpm->instr_read_data_r0(dpm,
713 ARMV4_5_MRC(15, 0, 0, 5, 0, 0),
714 &dfsr);
715 if (retval != ERROR_OK)
716 goto done;
717
718 retval = dpm->instr_read_data_r0(dpm,
719 ARMV4_5_MRC(15, 0, 0, 5, 0, 1),
720 &ifsr);
721 if (retval != ERROR_OK)
722 goto done;
723
724 /* c6/c0 - {data, instruction} fault address registers */
725 retval = dpm->instr_read_data_r0(dpm,
726 ARMV4_5_MRC(15, 0, 0, 6, 0, 0),
727 &dfar);
728 if (retval != ERROR_OK)
729 goto done;
730
731 retval = dpm->instr_read_data_r0(dpm,
732 ARMV4_5_MRC(15, 0, 0, 6, 0, 2),
733 &ifar);
734 if (retval != ERROR_OK)
735 goto done;
736
737 LOG_USER("Data fault registers DFSR: %8.8" PRIx32
738 ", DFAR: %8.8" PRIx32, dfsr, dfar);
739 LOG_USER("Instruction fault registers IFSR: %8.8" PRIx32
740 ", IFAR: %8.8" PRIx32, ifsr, ifar);
741
742 done:
743 /* (void) */ dpm->finish(dpm);
744 }
745
746 static __attribute__((unused)) void armv8_show_fault_registers(struct target *target)
747 {
748 struct armv8_common *armv8 = target_to_armv8(target);
749
750 if (armv8->arm.core_state != ARM_STATE_AARCH64)
751 armv8_show_fault_registers32(armv8);
752 }
753
754 static uint8_t armv8_pa_size(uint32_t ps)
755 {
756 uint8_t ret = 0;
757 switch (ps) {
758 case 0:
759 ret = 32;
760 break;
761 case 1:
762 ret = 36;
763 break;
764 case 2:
765 ret = 40;
766 break;
767 case 3:
768 ret = 42;
769 break;
770 case 4:
771 ret = 44;
772 break;
773 case 5:
774 ret = 48;
775 break;
776 default:
777 LOG_INFO("Unknow physicall address size");
778 break;
779 }
780 return ret;
781 }
782
783 static __attribute__((unused)) int armv8_read_ttbcr32(struct target *target)
784 {
785 struct armv8_common *armv8 = target_to_armv8(target);
786 struct arm_dpm *dpm = armv8->arm.dpm;
787 uint32_t ttbcr, ttbcr_n;
788 int retval = dpm->prepare(dpm);
789 if (retval != ERROR_OK)
790 goto done;
791 /* MRC p15,0,<Rt>,c2,c0,2 ; Read CP15 Translation Table Base Control Register*/
792 retval = dpm->instr_read_data_r0(dpm,
793 ARMV4_5_MRC(15, 0, 0, 2, 0, 2),
794 &ttbcr);
795 if (retval != ERROR_OK)
796 goto done;
797
798 LOG_DEBUG("ttbcr %" PRIx32, ttbcr);
799
800 ttbcr_n = ttbcr & 0x7;
801 armv8->armv8_mmu.ttbcr = ttbcr;
802
803 /*
804 * ARM Architecture Reference Manual (ARMv7-A and ARMv7-Redition),
805 * document # ARM DDI 0406C
806 */
807 armv8->armv8_mmu.ttbr_range[0] = 0xffffffff >> ttbcr_n;
808 armv8->armv8_mmu.ttbr_range[1] = 0xffffffff;
809 armv8->armv8_mmu.ttbr_mask[0] = 0xffffffff << (14 - ttbcr_n);
810 armv8->armv8_mmu.ttbr_mask[1] = 0xffffffff << 14;
811
812 LOG_DEBUG("ttbr1 %s, ttbr0_mask %" PRIx32 " ttbr1_mask %" PRIx32,
813 (ttbcr_n != 0) ? "used" : "not used",
814 armv8->armv8_mmu.ttbr_mask[0],
815 armv8->armv8_mmu.ttbr_mask[1]);
816
817 done:
818 dpm->finish(dpm);
819 return retval;
820 }
821
822 static __attribute__((unused)) int armv8_read_ttbcr(struct target *target)
823 {
824 struct armv8_common *armv8 = target_to_armv8(target);
825 struct arm_dpm *dpm = armv8->arm.dpm;
826 struct arm *arm = &armv8->arm;
827 uint32_t ttbcr;
828 uint64_t ttbcr_64;
829
830 int retval = dpm->prepare(dpm);
831 if (retval != ERROR_OK)
832 goto done;
833
834 /* claaer ttrr1_used and ttbr0_mask */
835 memset(&armv8->armv8_mmu.ttbr1_used, 0, sizeof(armv8->armv8_mmu.ttbr1_used));
836 memset(&armv8->armv8_mmu.ttbr0_mask, 0, sizeof(armv8->armv8_mmu.ttbr0_mask));
837
838 switch (armv8_curel_from_core_mode(arm->core_mode)) {
839 case SYSTEM_CUREL_EL3:
840 retval = dpm->instr_read_data_r0(dpm,
841 ARMV8_MRS(SYSTEM_TCR_EL3, 0),
842 &ttbcr);
843 retval += dpm->instr_read_data_r0_64(dpm,
844 ARMV8_MRS(SYSTEM_TTBR0_EL3, 0),
845 &armv8->ttbr_base);
846 if (retval != ERROR_OK)
847 goto done;
848 armv8->va_size = 64 - (ttbcr & 0x3F);
849 armv8->pa_size = armv8_pa_size((ttbcr >> 16) & 7);
850 armv8->page_size = (ttbcr >> 14) & 3;
851 break;
852 case SYSTEM_CUREL_EL2:
853 retval = dpm->instr_read_data_r0(dpm,
854 ARMV8_MRS(SYSTEM_TCR_EL2, 0),
855 &ttbcr);
856 retval += dpm->instr_read_data_r0_64(dpm,
857 ARMV8_MRS(SYSTEM_TTBR0_EL2, 0),
858 &armv8->ttbr_base);
859 if (retval != ERROR_OK)
860 goto done;
861 armv8->va_size = 64 - (ttbcr & 0x3F);
862 armv8->pa_size = armv8_pa_size((ttbcr >> 16) & 7);
863 armv8->page_size = (ttbcr >> 14) & 3;
864 break;
865 case SYSTEM_CUREL_EL0:
866 armv8_dpm_modeswitch(dpm, ARMV8_64_EL1H);
867 /* fall through */
868 case SYSTEM_CUREL_EL1:
869 retval = dpm->instr_read_data_r0_64(dpm,
870 ARMV8_MRS(SYSTEM_TCR_EL1, 0),
871 &ttbcr_64);
872 armv8->va_size = 64 - (ttbcr_64 & 0x3F);
873 armv8->pa_size = armv8_pa_size((ttbcr_64 >> 32) & 7);
874 armv8->page_size = (ttbcr_64 >> 14) & 3;
875 armv8->armv8_mmu.ttbr1_used = (((ttbcr_64 >> 16) & 0x3F) != 0) ? 1 : 0;
876 armv8->armv8_mmu.ttbr0_mask = 0x0000FFFFFFFFFFFF;
877 retval += dpm->instr_read_data_r0_64(dpm,
878 ARMV8_MRS(SYSTEM_TTBR0_EL1 | (armv8->armv8_mmu.ttbr1_used), 0),
879 &armv8->ttbr_base);
880 if (retval != ERROR_OK)
881 goto done;
882 break;
883 default:
884 LOG_ERROR("unknow core state");
885 retval = ERROR_FAIL;
886 break;
887 }
888 if (retval != ERROR_OK)
889 goto done;
890
891 if (armv8->armv8_mmu.ttbr1_used == 1)
892 LOG_INFO("TTBR0 access above %" PRIx64, (uint64_t)(armv8->armv8_mmu.ttbr0_mask));
893
894 done:
895 armv8_dpm_modeswitch(dpm, ARM_MODE_ANY);
896 dpm->finish(dpm);
897 return retval;
898 }
899
900 /* method adapted to cortex A : reused arm v4 v5 method*/
901 int armv8_mmu_translate_va(struct target *target, target_addr_t va, target_addr_t *val)
902 {
903 return ERROR_OK;
904 }
905
906 /* V8 method VA TO PA */
907 int armv8_mmu_translate_va_pa(struct target *target, target_addr_t va,
908 target_addr_t *val, int meminfo)
909 {
910 struct armv8_common *armv8 = target_to_armv8(target);
911 struct arm *arm = target_to_arm(target);
912 struct arm_dpm *dpm = &armv8->dpm;
913 enum arm_mode target_mode = ARM_MODE_ANY;
914 uint32_t retval;
915 uint32_t instr = 0;
916 uint64_t par;
917
918 static const char * const shared_name[] = {
919 "Non-", "UNDEFINED ", "Outer ", "Inner "
920 };
921
922 static const char * const secure_name[] = {
923 "Secure", "Not Secure"
924 };
925
926 retval = dpm->prepare(dpm);
927 if (retval != ERROR_OK)
928 return retval;
929
930 switch (armv8_curel_from_core_mode(arm->core_mode)) {
931 case SYSTEM_CUREL_EL0:
932 instr = ARMV8_SYS(SYSTEM_ATS12E0R, 0);
933 /* can only execute instruction at EL2 */
934 target_mode = ARMV8_64_EL2H;
935 break;
936 case SYSTEM_CUREL_EL1:
937 instr = ARMV8_SYS(SYSTEM_ATS12E1R, 0);
938 /* can only execute instruction at EL2 */
939 target_mode = ARMV8_64_EL2H;
940 break;
941 case SYSTEM_CUREL_EL2:
942 instr = ARMV8_SYS(SYSTEM_ATS1E2R, 0);
943 break;
944 case SYSTEM_CUREL_EL3:
945 instr = ARMV8_SYS(SYSTEM_ATS1E3R, 0);
946 break;
947
948 default:
949 break;
950 };
951
952 if (target_mode != ARM_MODE_ANY)
953 armv8_dpm_modeswitch(dpm, target_mode);
954
955 /* write VA to R0 and execute translation instruction */
956 retval = dpm->instr_write_data_r0_64(dpm, instr, (uint64_t)va);
957 /* read result from PAR_EL1 */
958 if (retval == ERROR_OK)
959 retval = dpm->instr_read_data_r0_64(dpm, ARMV8_MRS(SYSTEM_PAR_EL1, 0), &par);
960
961 /* switch back to saved PE mode */
962 if (target_mode != ARM_MODE_ANY)
963 armv8_dpm_modeswitch(dpm, ARM_MODE_ANY);
964
965 dpm->finish(dpm);
966
967 if (retval != ERROR_OK)
968 return retval;
969
970 if (par & 1) {
971 LOG_ERROR("Address translation failed at stage %i, FST=%x, PTW=%i",
972 ((int)(par >> 9) & 1)+1, (int)(par >> 1) & 0x3f, (int)(par >> 8) & 1);
973
974 *val = 0;
975 retval = ERROR_FAIL;
976 } else {
977 *val = (par & 0xFFFFFFFFF000UL) | (va & 0xFFF);
978 if (meminfo) {
979 int SH = (par >> 7) & 3;
980 int NS = (par >> 9) & 1;
981 int ATTR = (par >> 56) & 0xFF;
982
983 char *memtype = (ATTR & 0xF0) == 0 ? "Device Memory" : "Normal Memory";
984
985 LOG_USER("%sshareable, %s",
986 shared_name[SH], secure_name[NS]);
987 LOG_USER("%s", memtype);
988 }
989 }
990
991 return retval;
992 }
993
994 int armv8_handle_cache_info_command(struct command_context *cmd_ctx,
995 struct armv8_cache_common *armv8_cache)
996 {
997 if (armv8_cache->info == -1) {
998 command_print(cmd_ctx, "cache not yet identified");
999 return ERROR_OK;
1000 }
1001
1002 if (armv8_cache->display_cache_info)
1003 armv8_cache->display_cache_info(cmd_ctx, armv8_cache);
1004 return ERROR_OK;
1005 }
1006
1007 int armv8_init_arch_info(struct target *target, struct armv8_common *armv8)
1008 {
1009 struct arm *arm = &armv8->arm;
1010 arm->arch_info = armv8;
1011 target->arch_info = &armv8->arm;
1012 /* target is useful in all function arm v4 5 compatible */
1013 armv8->arm.target = target;
1014 armv8->arm.common_magic = ARM_COMMON_MAGIC;
1015 armv8->common_magic = ARMV8_COMMON_MAGIC;
1016
1017 armv8->armv8_mmu.armv8_cache.l2_cache = NULL;
1018 armv8->armv8_mmu.armv8_cache.info = -1;
1019 armv8->armv8_mmu.armv8_cache.flush_all_data_cache = NULL;
1020 armv8->armv8_mmu.armv8_cache.display_cache_info = NULL;
1021 return ERROR_OK;
1022 }
1023
1024 int armv8_aarch64_state(struct target *target)
1025 {
1026 struct arm *arm = target_to_arm(target);
1027
1028 if (arm->common_magic != ARM_COMMON_MAGIC) {
1029 LOG_ERROR("BUG: called for a non-ARM target");
1030 return ERROR_FAIL;
1031 }
1032
1033 LOG_USER("target halted in %s state due to %s, current mode: %s\n"
1034 "cpsr: 0x%8.8" PRIx32 " pc: 0x%" PRIx64 "%s",
1035 armv8_state_strings[arm->core_state],
1036 debug_reason_name(target),
1037 armv8_mode_name(arm->core_mode),
1038 buf_get_u32(arm->cpsr->value, 0, 32),
1039 buf_get_u64(arm->pc->value, 0, 64),
1040 arm->is_semihosting ? ", semihosting" : "");
1041
1042 return ERROR_OK;
1043 }
1044
1045 int armv8_arch_state(struct target *target)
1046 {
1047 static const char * const state[] = {
1048 "disabled", "enabled"
1049 };
1050
1051 struct armv8_common *armv8 = target_to_armv8(target);
1052 struct arm *arm = &armv8->arm;
1053
1054 if (armv8->common_magic != ARMV8_COMMON_MAGIC) {
1055 LOG_ERROR("BUG: called for a non-Armv8 target");
1056 return ERROR_COMMAND_SYNTAX_ERROR;
1057 }
1058
1059 if (arm->core_state == ARM_STATE_AARCH64)
1060 armv8_aarch64_state(target);
1061 else
1062 arm_arch_state(target);
1063
1064 LOG_USER("MMU: %s, D-Cache: %s, I-Cache: %s",
1065 state[armv8->armv8_mmu.mmu_enabled],
1066 state[armv8->armv8_mmu.armv8_cache.d_u_cache_enabled],
1067 state[armv8->armv8_mmu.armv8_cache.i_cache_enabled]);
1068
1069 if (arm->core_mode == ARM_MODE_ABT)
1070 armv8_show_fault_registers(target);
1071
1072 if (target->debug_reason == DBG_REASON_WATCHPOINT)
1073 LOG_USER("Watchpoint triggered at PC %#08x",
1074 (unsigned) armv8->dpm.wp_pc);
1075
1076 return ERROR_OK;
1077 }
1078
1079 static struct reg_data_type aarch64_vector_base_types[] = {
1080 {REG_TYPE_IEEE_DOUBLE, "ieee_double", 0, {NULL} },
1081 {REG_TYPE_UINT64, "uint64", 0, {NULL} },
1082 {REG_TYPE_INT64, "int64", 0, {NULL} },
1083 {REG_TYPE_IEEE_SINGLE, "ieee_single", 0, {NULL} },
1084 {REG_TYPE_UINT32, "uint32", 0, {NULL} },
1085 {REG_TYPE_INT32, "int32", 0, {NULL} },
1086 {REG_TYPE_UINT16, "uint16", 0, {NULL} },
1087 {REG_TYPE_INT16, "int16", 0, {NULL} },
1088 {REG_TYPE_UINT8, "uint8", 0, {NULL} },
1089 {REG_TYPE_INT8, "int8", 0, {NULL} },
1090 {REG_TYPE_UINT128, "uint128", 0, {NULL} },
1091 {REG_TYPE_INT128, "int128", 0, {NULL} }
1092 };
1093
1094 static struct reg_data_type_vector aarch64_vector_types[] = {
1095 {aarch64_vector_base_types + 0, 2},
1096 {aarch64_vector_base_types + 1, 2},
1097 {aarch64_vector_base_types + 2, 2},
1098 {aarch64_vector_base_types + 3, 4},
1099 {aarch64_vector_base_types + 4, 4},
1100 {aarch64_vector_base_types + 5, 4},
1101 {aarch64_vector_base_types + 6, 8},
1102 {aarch64_vector_base_types + 7, 8},
1103 {aarch64_vector_base_types + 8, 16},
1104 {aarch64_vector_base_types + 9, 16},
1105 {aarch64_vector_base_types + 10, 01},
1106 {aarch64_vector_base_types + 11, 01},
1107 };
1108
1109 static struct reg_data_type aarch64_fpu_vector[] = {
1110 {REG_TYPE_ARCH_DEFINED, "v2d", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 0} },
1111 {REG_TYPE_ARCH_DEFINED, "v2u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 1} },
1112 {REG_TYPE_ARCH_DEFINED, "v2i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 2} },
1113 {REG_TYPE_ARCH_DEFINED, "v4f", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 3} },
1114 {REG_TYPE_ARCH_DEFINED, "v4u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 4} },
1115 {REG_TYPE_ARCH_DEFINED, "v4i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 5} },
1116 {REG_TYPE_ARCH_DEFINED, "v8u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 6} },
1117 {REG_TYPE_ARCH_DEFINED, "v8i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 7} },
1118 {REG_TYPE_ARCH_DEFINED, "v16u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 8} },
1119 {REG_TYPE_ARCH_DEFINED, "v16i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 9} },
1120 {REG_TYPE_ARCH_DEFINED, "v1u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 10} },
1121 {REG_TYPE_ARCH_DEFINED, "v1i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 11} },
1122 };
1123
1124 static struct reg_data_type_union_field aarch64_union_fields_vnd[] = {
1125 {"f", aarch64_fpu_vector + 0, aarch64_union_fields_vnd + 1},
1126 {"u", aarch64_fpu_vector + 1, aarch64_union_fields_vnd + 2},
1127 {"s", aarch64_fpu_vector + 2, NULL},
1128 };
1129
1130 static struct reg_data_type_union_field aarch64_union_fields_vns[] = {
1131 {"f", aarch64_fpu_vector + 3, aarch64_union_fields_vns + 1},
1132 {"u", aarch64_fpu_vector + 4, aarch64_union_fields_vns + 2},
1133 {"s", aarch64_fpu_vector + 5, NULL},
1134 };
1135
1136 static struct reg_data_type_union_field aarch64_union_fields_vnh[] = {
1137 {"u", aarch64_fpu_vector + 6, aarch64_union_fields_vnh + 1},
1138 {"s", aarch64_fpu_vector + 7, NULL},
1139 };
1140
1141 static struct reg_data_type_union_field aarch64_union_fields_vnb[] = {
1142 {"u", aarch64_fpu_vector + 8, aarch64_union_fields_vnb + 1},
1143 {"s", aarch64_fpu_vector + 9, NULL},
1144 };
1145
1146 static struct reg_data_type_union_field aarch64_union_fields_vnq[] = {
1147 {"u", aarch64_fpu_vector + 10, aarch64_union_fields_vnq + 1},
1148 {"s", aarch64_fpu_vector + 11, NULL},
1149 };
1150
1151 static struct reg_data_type_union aarch64_union_types[] = {
1152 {aarch64_union_fields_vnd},
1153 {aarch64_union_fields_vns},
1154 {aarch64_union_fields_vnh},
1155 {aarch64_union_fields_vnb},
1156 {aarch64_union_fields_vnq},
1157 };
1158
1159 static struct reg_data_type aarch64_fpu_union[] = {
1160 {REG_TYPE_ARCH_DEFINED, "vnd", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 0} },
1161 {REG_TYPE_ARCH_DEFINED, "vns", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 1} },
1162 {REG_TYPE_ARCH_DEFINED, "vnh", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 2} },
1163 {REG_TYPE_ARCH_DEFINED, "vnb", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 3} },
1164 {REG_TYPE_ARCH_DEFINED, "vnq", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 4} },
1165 };
1166
1167 static struct reg_data_type_union_field aarch64v_union_fields[] = {
1168 {"d", aarch64_fpu_union + 0, aarch64v_union_fields + 1},
1169 {"s", aarch64_fpu_union + 1, aarch64v_union_fields + 2},
1170 {"h", aarch64_fpu_union + 2, aarch64v_union_fields + 3},
1171 {"b", aarch64_fpu_union + 3, aarch64v_union_fields + 4},
1172 {"q", aarch64_fpu_union + 4, NULL},
1173 };
1174
1175 static struct reg_data_type_union aarch64v_union[] = {
1176 {aarch64v_union_fields}
1177 };
1178
1179 static struct reg_data_type aarch64v[] = {
1180 {REG_TYPE_ARCH_DEFINED, "aarch64v", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64v_union} },
1181 };
1182
1183 static const struct {
1184 unsigned id;
1185 const char *name;
1186 unsigned bits;
1187 enum arm_mode mode;
1188 enum reg_type type;
1189 const char *group;
1190 const char *feature;
1191 struct reg_data_type *data_type;
1192 } armv8_regs[] = {
1193 { ARMV8_R0, "x0", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1194 { ARMV8_R1, "x1", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1195 { ARMV8_R2, "x2", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1196 { ARMV8_R3, "x3", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1197 { ARMV8_R4, "x4", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1198 { ARMV8_R5, "x5", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1199 { ARMV8_R6, "x6", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1200 { ARMV8_R7, "x7", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1201 { ARMV8_R8, "x8", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1202 { ARMV8_R9, "x9", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1203 { ARMV8_R10, "x10", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1204 { ARMV8_R11, "x11", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1205 { ARMV8_R12, "x12", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1206 { ARMV8_R13, "x13", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1207 { ARMV8_R14, "x14", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1208 { ARMV8_R15, "x15", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1209 { ARMV8_R16, "x16", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1210 { ARMV8_R17, "x17", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1211 { ARMV8_R18, "x18", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1212 { ARMV8_R19, "x19", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1213 { ARMV8_R20, "x20", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1214 { ARMV8_R21, "x21", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1215 { ARMV8_R22, "x22", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1216 { ARMV8_R23, "x23", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1217 { ARMV8_R24, "x24", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1218 { ARMV8_R25, "x25", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1219 { ARMV8_R26, "x26", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1220 { ARMV8_R27, "x27", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1221 { ARMV8_R28, "x28", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1222 { ARMV8_R29, "x29", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1223 { ARMV8_R30, "x30", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1224
1225 { ARMV8_SP, "sp", 64, ARM_MODE_ANY, REG_TYPE_DATA_PTR, "general", "org.gnu.gdb.aarch64.core", NULL},
1226 { ARMV8_PC, "pc", 64, ARM_MODE_ANY, REG_TYPE_CODE_PTR, "general", "org.gnu.gdb.aarch64.core", NULL},
1227
1228 { ARMV8_xPSR, "CPSR", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.aarch64.core", NULL},
1229
1230 { ARMV8_V0, "v0", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1231 { ARMV8_V1, "v1", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1232 { ARMV8_V2, "v2", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1233 { ARMV8_V3, "v3", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1234 { ARMV8_V4, "v4", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1235 { ARMV8_V5, "v5", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1236 { ARMV8_V6, "v6", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1237 { ARMV8_V7, "v7", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1238 { ARMV8_V8, "v8", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1239 { ARMV8_V9, "v9", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1240 { ARMV8_V10, "v10", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1241 { ARMV8_V11, "v11", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1242 { ARMV8_V12, "v12", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1243 { ARMV8_V13, "v13", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1244 { ARMV8_V14, "v14", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1245 { ARMV8_V15, "v15", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1246 { ARMV8_V16, "v16", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1247 { ARMV8_V17, "v17", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1248 { ARMV8_V18, "v18", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1249 { ARMV8_V19, "v19", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1250 { ARMV8_V20, "v20", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1251 { ARMV8_V21, "v21", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1252 { ARMV8_V22, "v22", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1253 { ARMV8_V23, "v23", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1254 { ARMV8_V24, "v24", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1255 { ARMV8_V25, "v25", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1256 { ARMV8_V26, "v26", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1257 { ARMV8_V27, "v27", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1258 { ARMV8_V28, "v28", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1259 { ARMV8_V29, "v29", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1260 { ARMV8_V30, "v30", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1261 { ARMV8_V31, "v31", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1262 { ARMV8_FPSR, "fpsr", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "simdfp", "org.gnu.gdb.aarch64.fpu", NULL},
1263 { ARMV8_FPCR, "fpcr", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "simdfp", "org.gnu.gdb.aarch64.fpu", NULL},
1264
1265 { ARMV8_ELR_EL1, "ELR_EL1", 64, ARMV8_64_EL1H, REG_TYPE_CODE_PTR, "banked", "net.sourceforge.openocd.banked",
1266 NULL},
1267 { ARMV8_ESR_EL1, "ESR_EL1", 32, ARMV8_64_EL1H, REG_TYPE_UINT32, "banked", "net.sourceforge.openocd.banked",
1268 NULL},
1269 { ARMV8_SPSR_EL1, "SPSR_EL1", 32, ARMV8_64_EL1H, REG_TYPE_UINT32, "banked", "net.sourceforge.openocd.banked",
1270 NULL},
1271
1272 { ARMV8_ELR_EL2, "ELR_EL2", 64, ARMV8_64_EL2H, REG_TYPE_CODE_PTR, "banked", "net.sourceforge.openocd.banked",
1273 NULL},
1274 { ARMV8_ESR_EL2, "ESR_EL2", 32, ARMV8_64_EL2H, REG_TYPE_UINT32, "banked", "net.sourceforge.openocd.banked",
1275 NULL},
1276 { ARMV8_SPSR_EL2, "SPSR_EL2", 32, ARMV8_64_EL2H, REG_TYPE_UINT32, "banked", "net.sourceforge.openocd.banked",
1277 NULL},
1278
1279 { ARMV8_ELR_EL3, "ELR_EL3", 64, ARMV8_64_EL3H, REG_TYPE_CODE_PTR, "banked", "net.sourceforge.openocd.banked",
1280 NULL},
1281 { ARMV8_ESR_EL3, "ESR_EL3", 32, ARMV8_64_EL3H, REG_TYPE_UINT32, "banked", "net.sourceforge.openocd.banked",
1282 NULL},
1283 { ARMV8_SPSR_EL3, "SPSR_EL3", 32, ARMV8_64_EL3H, REG_TYPE_UINT32, "banked", "net.sourceforge.openocd.banked",
1284 NULL},
1285 };
1286
1287 static const struct {
1288 unsigned id;
1289 unsigned mapping;
1290 const char *name;
1291 unsigned bits;
1292 enum arm_mode mode;
1293 enum reg_type type;
1294 const char *group;
1295 const char *feature;
1296 } armv8_regs32[] = {
1297 { ARMV8_R0, 0, "r0", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1298 { ARMV8_R1, 0, "r1", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1299 { ARMV8_R2, 0, "r2", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1300 { ARMV8_R3, 0, "r3", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1301 { ARMV8_R4, 0, "r4", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1302 { ARMV8_R5, 0, "r5", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1303 { ARMV8_R6, 0, "r6", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1304 { ARMV8_R7, 0, "r7", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1305 { ARMV8_R8, 0, "r8", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1306 { ARMV8_R9, 0, "r9", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1307 { ARMV8_R10, 0, "r10", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1308 { ARMV8_R11, 0, "r11", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1309 { ARMV8_R12, 0, "r12", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1310 { ARMV8_R13, 0, "sp", 32, ARM_MODE_ANY, REG_TYPE_DATA_PTR, "general", "org.gnu.gdb.arm.core" },
1311 { ARMV8_R14, 0, "lr", 32, ARM_MODE_ANY, REG_TYPE_CODE_PTR, "general", "org.gnu.gdb.arm.core" },
1312 { ARMV8_PC, 0, "pc", 32, ARM_MODE_ANY, REG_TYPE_CODE_PTR, "general", "org.gnu.gdb.arm.core" },
1313 { ARMV8_xPSR, 0, "cpsr", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1314 { ARMV8_V0, 0, "d0", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1315 { ARMV8_V0, 8, "d1", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1316 { ARMV8_V1, 0, "d2", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1317 { ARMV8_V1, 8, "d3", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1318 { ARMV8_V2, 0, "d4", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1319 { ARMV8_V2, 8, "d5", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1320 { ARMV8_V3, 0, "d6", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1321 { ARMV8_V3, 8, "d7", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1322 { ARMV8_V4, 0, "d8", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1323 { ARMV8_V4, 8, "d9", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1324 { ARMV8_V5, 0, "d10", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1325 { ARMV8_V5, 8, "d11", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1326 { ARMV8_V6, 0, "d12", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1327 { ARMV8_V6, 8, "d13", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1328 { ARMV8_V7, 0, "d14", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1329 { ARMV8_V7, 8, "d15", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1330 { ARMV8_V8, 0, "d16", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1331 { ARMV8_V8, 8, "d17", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1332 { ARMV8_V9, 0, "d18", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1333 { ARMV8_V9, 8, "d19", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1334 { ARMV8_V10, 0, "d20", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1335 { ARMV8_V10, 8, "d21", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1336 { ARMV8_V11, 0, "d22", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1337 { ARMV8_V11, 8, "d23", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1338 { ARMV8_V12, 0, "d24", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1339 { ARMV8_V12, 8, "d25", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1340 { ARMV8_V13, 0, "d26", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1341 { ARMV8_V13, 8, "d27", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1342 { ARMV8_V14, 0, "d28", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1343 { ARMV8_V14, 8, "d29", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1344 { ARMV8_V15, 0, "d30", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1345 { ARMV8_V15, 8, "d31", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1346 { ARMV8_FPSR, 0, "fpscr", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "float", "org.gnu.gdb.arm.vfp"},
1347 };
1348
1349 #define ARMV8_NUM_REGS ARRAY_SIZE(armv8_regs)
1350 #define ARMV8_NUM_REGS32 ARRAY_SIZE(armv8_regs32)
1351
1352 static int armv8_get_core_reg(struct reg *reg)
1353 {
1354 struct arm_reg *armv8_reg = reg->arch_info;
1355 struct target *target = armv8_reg->target;
1356 struct arm *arm = target_to_arm(target);
1357
1358 if (target->state != TARGET_HALTED)
1359 return ERROR_TARGET_NOT_HALTED;
1360
1361 return arm->read_core_reg(target, reg, armv8_reg->num, arm->core_mode);
1362 }
1363
1364 static int armv8_set_core_reg(struct reg *reg, uint8_t *buf)
1365 {
1366 struct arm_reg *armv8_reg = reg->arch_info;
1367 struct target *target = armv8_reg->target;
1368 struct arm *arm = target_to_arm(target);
1369 uint64_t value = buf_get_u64(buf, 0, reg->size);
1370
1371 if (target->state != TARGET_HALTED)
1372 return ERROR_TARGET_NOT_HALTED;
1373
1374 if (reg->size <= 64) {
1375 if (reg == arm->cpsr)
1376 armv8_set_cpsr(arm, (uint32_t)value);
1377 else {
1378 buf_set_u64(reg->value, 0, reg->size, value);
1379 reg->valid = 1;
1380 }
1381 } else if (reg->size <= 128) {
1382 uint64_t hvalue = buf_get_u64(buf + 8, 0, reg->size - 64);
1383
1384 buf_set_u64(reg->value, 0, 64, value);
1385 buf_set_u64(reg->value + 8, 0, reg->size - 64, hvalue);
1386 reg->valid = 1;
1387 }
1388
1389 reg->dirty = 1;
1390
1391 return ERROR_OK;
1392 }
1393
1394 static const struct reg_arch_type armv8_reg_type = {
1395 .get = armv8_get_core_reg,
1396 .set = armv8_set_core_reg,
1397 };
1398
1399 static int armv8_get_core_reg32(struct reg *reg)
1400 {
1401 struct arm_reg *armv8_reg = reg->arch_info;
1402 struct target *target = armv8_reg->target;
1403 struct arm *arm = target_to_arm(target);
1404 struct reg_cache *cache = arm->core_cache;
1405 struct reg *reg64;
1406 int retval;
1407
1408 /* get the corresponding Aarch64 register */
1409 reg64 = cache->reg_list + armv8_reg->num;
1410 if (reg64->valid) {
1411 reg->valid = true;
1412 return ERROR_OK;
1413 }
1414
1415 retval = arm->read_core_reg(target, reg64, armv8_reg->num, arm->core_mode);
1416 if (retval == ERROR_OK)
1417 reg->valid = reg64->valid;
1418
1419 return retval;
1420 }
1421
1422 static int armv8_set_core_reg32(struct reg *reg, uint8_t *buf)
1423 {
1424 struct arm_reg *armv8_reg = reg->arch_info;
1425 struct target *target = armv8_reg->target;
1426 struct arm *arm = target_to_arm(target);
1427 struct reg_cache *cache = arm->core_cache;
1428 struct reg *reg64 = cache->reg_list + armv8_reg->num;
1429 uint32_t value = buf_get_u32(buf, 0, 32);
1430
1431 if (reg64 == arm->cpsr) {
1432 armv8_set_cpsr(arm, value);
1433 } else {
1434 if (reg->size <= 32)
1435 buf_set_u32(reg->value, 0, 32, value);
1436 else if (reg->size <= 64) {
1437 uint64_t value64 = buf_get_u64(buf, 0, 64);
1438 buf_set_u64(reg->value, 0, 64, value64);
1439 }
1440 reg->valid = 1;
1441 reg64->valid = 1;
1442 }
1443
1444 reg64->dirty = 1;
1445
1446 return ERROR_OK;
1447 }
1448
1449 static const struct reg_arch_type armv8_reg32_type = {
1450 .get = armv8_get_core_reg32,
1451 .set = armv8_set_core_reg32,
1452 };
1453
1454 /** Builds cache of architecturally defined registers. */
1455 struct reg_cache *armv8_build_reg_cache(struct target *target)
1456 {
1457 struct armv8_common *armv8 = target_to_armv8(target);
1458 struct arm *arm = &armv8->arm;
1459 int num_regs = ARMV8_NUM_REGS;
1460 int num_regs32 = ARMV8_NUM_REGS32;
1461 struct reg_cache **cache_p = register_get_last_cache_p(&target->reg_cache);
1462 struct reg_cache *cache = malloc(sizeof(struct reg_cache));
1463 struct reg_cache *cache32 = malloc(sizeof(struct reg_cache));
1464 struct reg *reg_list = calloc(num_regs, sizeof(struct reg));
1465 struct reg *reg_list32 = calloc(num_regs32, sizeof(struct reg));
1466 struct arm_reg *arch_info = calloc(num_regs, sizeof(struct arm_reg));
1467 struct reg_feature *feature;
1468 int i;
1469
1470 /* Build the process context cache */
1471 cache->name = "Aarch64 registers";
1472 cache->next = cache32;
1473 cache->reg_list = reg_list;
1474 cache->num_regs = num_regs;
1475
1476 for (i = 0; i < num_regs; i++) {
1477 arch_info[i].num = armv8_regs[i].id;
1478 arch_info[i].mode = armv8_regs[i].mode;
1479 arch_info[i].target = target;
1480 arch_info[i].arm = arm;
1481
1482 reg_list[i].name = armv8_regs[i].name;
1483 reg_list[i].size = armv8_regs[i].bits;
1484 reg_list[i].value = &arch_info[i].value[0];
1485 reg_list[i].type = &armv8_reg_type;
1486 reg_list[i].arch_info = &arch_info[i];
1487
1488 reg_list[i].group = armv8_regs[i].group;
1489 reg_list[i].number = i;
1490 reg_list[i].exist = true;
1491 reg_list[i].caller_save = true; /* gdb defaults to true */
1492
1493 feature = calloc(1, sizeof(struct reg_feature));
1494 if (feature) {
1495 feature->name = armv8_regs[i].feature;
1496 reg_list[i].feature = feature;
1497 } else
1498 LOG_ERROR("unable to allocate feature list");
1499
1500 if (armv8_regs[i].data_type == NULL) {
1501 reg_list[i].reg_data_type = calloc(1, sizeof(struct reg_data_type));
1502 if (reg_list[i].reg_data_type)
1503 reg_list[i].reg_data_type->type = armv8_regs[i].type;
1504 else
1505 LOG_ERROR("unable to allocate reg type list");
1506 } else
1507 reg_list[i].reg_data_type = armv8_regs[i].data_type;
1508
1509 }
1510
1511 arm->cpsr = reg_list + ARMV8_xPSR;
1512 arm->pc = reg_list + ARMV8_PC;
1513 arm->core_cache = cache;
1514
1515 /* shadow cache for ARM mode registers */
1516 cache32->name = "Aarch32 registers";
1517 cache32->next = NULL;
1518 cache32->reg_list = reg_list32;
1519 cache32->num_regs = num_regs32;
1520
1521 for (i = 0; i < num_regs32; i++) {
1522 reg_list32[i].name = armv8_regs32[i].name;
1523 reg_list32[i].size = armv8_regs32[i].bits;
1524 reg_list32[i].value = &arch_info[armv8_regs32[i].id].value[armv8_regs32[i].mapping];
1525 reg_list32[i].type = &armv8_reg32_type;
1526 reg_list32[i].arch_info = &arch_info[armv8_regs32[i].id];
1527 reg_list32[i].group = armv8_regs32[i].group;
1528 reg_list32[i].number = i;
1529 reg_list32[i].exist = true;
1530 reg_list32[i].caller_save = true;
1531
1532 feature = calloc(1, sizeof(struct reg_feature));
1533 if (feature) {
1534 feature->name = armv8_regs32[i].feature;
1535 reg_list32[i].feature = feature;
1536 } else
1537 LOG_ERROR("unable to allocate feature list");
1538
1539 reg_list32[i].reg_data_type = calloc(1, sizeof(struct reg_data_type));
1540 if (reg_list32[i].reg_data_type)
1541 reg_list32[i].reg_data_type->type = armv8_regs32[i].type;
1542 else
1543 LOG_ERROR("unable to allocate reg type list");
1544 }
1545
1546 (*cache_p) = cache;
1547 return cache;
1548 }
1549
1550 struct reg *armv8_reg_current(struct arm *arm, unsigned regnum)
1551 {
1552 struct reg *r;
1553
1554 if (regnum > (ARMV8_LAST_REG - 1))
1555 return NULL;
1556
1557 r = arm->core_cache->reg_list + regnum;
1558 return r;
1559 }
1560
1561 const struct command_registration armv8_command_handlers[] = {
1562 {
1563 .chain = dap_command_handlers,
1564 },
1565 COMMAND_REGISTRATION_DONE
1566 };
1567
1568
1569 int armv8_get_gdb_reg_list(struct target *target,
1570 struct reg **reg_list[], int *reg_list_size,
1571 enum target_register_class reg_class)
1572 {
1573 struct arm *arm = target_to_arm(target);
1574 int i;
1575
1576 if (arm->core_state == ARM_STATE_AARCH64) {
1577
1578 LOG_DEBUG("Creating Aarch64 register list for target %s", target_name(target));
1579
1580 switch (reg_class) {
1581 case REG_CLASS_GENERAL:
1582 *reg_list_size = ARMV8_V0;
1583 *reg_list = malloc(sizeof(struct reg *) * (*reg_list_size));
1584
1585 for (i = 0; i < *reg_list_size; i++)
1586 (*reg_list)[i] = armv8_reg_current(arm, i);
1587 return ERROR_OK;
1588
1589 case REG_CLASS_ALL:
1590 *reg_list_size = ARMV8_LAST_REG;
1591 *reg_list = malloc(sizeof(struct reg *) * (*reg_list_size));
1592
1593 for (i = 0; i < *reg_list_size; i++)
1594 (*reg_list)[i] = armv8_reg_current(arm, i);
1595
1596 return ERROR_OK;
1597
1598 default:
1599 LOG_ERROR("not a valid register class type in query.");
1600 return ERROR_FAIL;
1601 }
1602 } else {
1603 struct reg_cache *cache32 = arm->core_cache->next;
1604
1605 LOG_DEBUG("Creating Aarch32 register list for target %s", target_name(target));
1606
1607 switch (reg_class) {
1608 case REG_CLASS_GENERAL:
1609 *reg_list_size = ARMV8_R14 + 3;
1610 *reg_list = malloc(sizeof(struct reg *) * (*reg_list_size));
1611
1612 for (i = 0; i < *reg_list_size; i++)
1613 (*reg_list)[i] = cache32->reg_list + i;
1614
1615 return ERROR_OK;
1616 case REG_CLASS_ALL:
1617 *reg_list_size = cache32->num_regs;
1618 *reg_list = malloc(sizeof(struct reg *) * (*reg_list_size));
1619
1620 for (i = 0; i < *reg_list_size; i++)
1621 (*reg_list)[i] = cache32->reg_list + i;
1622
1623 return ERROR_OK;
1624 default:
1625 LOG_ERROR("not a valid register class type in query.");
1626 return ERROR_FAIL;
1627 }
1628 }
1629 }
1630
1631 int armv8_set_dbgreg_bits(struct armv8_common *armv8, unsigned int reg, unsigned long mask, unsigned long value)
1632 {
1633 uint32_t tmp;
1634
1635 /* Read register */
1636 int retval = mem_ap_read_atomic_u32(armv8->debug_ap,
1637 armv8->debug_base + reg, &tmp);
1638 if (ERROR_OK != retval)
1639 return retval;
1640
1641 /* clear bitfield */
1642 tmp &= ~mask;
1643 /* put new value */
1644 tmp |= value & mask;
1645
1646 /* write new value */
1647 retval = mem_ap_write_atomic_u32(armv8->debug_ap,
1648 armv8->debug_base + reg, tmp);
1649 return retval;
1650 }
Open On-Chip Debugger