Lines Matching defs:decoder
22 #include "intel-pt-insn-decoder.h"
23 #include "intel-pt-pkt-decoder.h"
24 #include "intel-pt-decoder.h"
111 #define INTEL_PT_STATE_ERR1 (decoder->pkt_state)
269 static bool intel_pt_print_once(struct intel_pt_decoder *decoder,
274 if (decoder->print_once & bit)
276 decoder->print_once |= bit;
288 static void intel_pt_setup_period(struct intel_pt_decoder *decoder)
290 if (decoder->period_type == INTEL_PT_PERIOD_TICKS) {
293 period = intel_pt_lower_power_of_2(decoder->period);
294 decoder->period_mask = ~(period - 1);
295 decoder->period_ticks = period;
308 struct intel_pt_decoder *decoder;
313 decoder = zalloc(sizeof(struct intel_pt_decoder));
314 if (!decoder)
317 decoder->get_trace = params->get_trace;
318 decoder->walk_insn = params->walk_insn;
319 decoder->pgd_ip = params->pgd_ip;
320 decoder->lookahead = params->lookahead;
321 decoder->findnew_vmcs_info = params->findnew_vmcs_info;
322 decoder->data = params->data;
323 decoder->return_compression = params->return_compression;
324 decoder->branch_enable = params->branch_enable;
325 decoder->hop = params->quick >= 1;
326 decoder->leap = params->quick >= 2;
327 decoder->vm_time_correlation = params->vm_time_correlation;
328 decoder->vm_tm_corr_dry_run = params->vm_tm_corr_dry_run;
329 decoder->first_timestamp = params->first_timestamp;
330 decoder->last_reliable_timestamp = params->first_timestamp;
331 decoder->max_loops = params->max_loops ? params->max_loops : INTEL_PT_MAX_LOOPS;
333 decoder->flags = params->flags;
335 decoder->ctl = params->ctl;
336 decoder->period = params->period;
337 decoder->period_type = params->period_type;
339 decoder->max_non_turbo_ratio = params->max_non_turbo_ratio;
340 decoder->max_non_turbo_ratio_fp = params->max_non_turbo_ratio;
342 decoder->cyc_threshold = intel_pt_cyc_threshold(decoder->ctl);
344 intel_pt_setup_period(decoder);
346 decoder->mtc_shift = params->mtc_period;
347 decoder->ctc_rem_mask = (1 << decoder->mtc_shift) - 1;
349 decoder->tsc_ctc_ratio_n = params->tsc_ctc_ratio_n;
350 decoder->tsc_ctc_ratio_d = params->tsc_ctc_ratio_d;
352 if (!decoder->tsc_ctc_ratio_n)
353 decoder->tsc_ctc_ratio_d = 0;
355 if (decoder->tsc_ctc_ratio_d) {
356 if (!(decoder->tsc_ctc_ratio_n % decoder->tsc_ctc_ratio_d))
357 decoder->tsc_ctc_mult = decoder->tsc_ctc_ratio_n /
358 decoder->tsc_ctc_ratio_d;
367 decoder->tsc_slip = 0x10000;
369 intel_pt_log("timestamp: mtc_shift %u\n", decoder->mtc_shift);
370 intel_pt_log("timestamp: tsc_ctc_ratio_n %u\n", decoder->tsc_ctc_ratio_n);
371 intel_pt_log("timestamp: tsc_ctc_ratio_d %u\n", decoder->tsc_ctc_ratio_d);
372 intel_pt_log("timestamp: tsc_ctc_mult %u\n", decoder->tsc_ctc_mult);
373 intel_pt_log("timestamp: tsc_slip %#x\n", decoder->tsc_slip);
375 if (decoder->hop)
378 return decoder;
381 void intel_pt_set_first_timestamp(struct intel_pt_decoder *decoder,
384 decoder->first_timestamp = first_timestamp;
458 void intel_pt_decoder_free(struct intel_pt_decoder *decoder)
460 intel_pt_free_stack(&decoder->stack);
461 free(decoder);
548 static inline void intel_pt_set_last_ip(struct intel_pt_decoder *decoder)
550 decoder->last_ip = intel_pt_calc_ip(&decoder->packet, decoder->last_ip);
551 decoder->have_last_ip = true;
554 static inline void intel_pt_set_ip(struct intel_pt_decoder *decoder)
556 intel_pt_set_last_ip(decoder);
557 decoder->ip = decoder->last_ip;
560 static void intel_pt_decoder_log_packet(struct intel_pt_decoder *decoder)
562 intel_pt_log_packet(&decoder->packet, decoder->pkt_len, decoder->pos,
563 decoder->buf);
566 static int intel_pt_bug(struct intel_pt_decoder *decoder)
569 decoder->pkt_state = INTEL_PT_STATE_NO_PSB;
573 static inline void intel_pt_clear_tx_flags(struct intel_pt_decoder *decoder)
575 decoder->tx_flags = 0;
578 static inline void intel_pt_update_in_tx(struct intel_pt_decoder *decoder)
580 decoder->tx_flags = decoder->packet.payload & INTEL_PT_IN_TX;
583 static inline void intel_pt_update_pip(struct intel_pt_decoder *decoder)
585 decoder->pip_payload = decoder->packet.payload;
588 static inline void intel_pt_update_nr(struct intel_pt_decoder *decoder)
590 decoder->next_nr = decoder->pip_payload & 1;
593 static inline void intel_pt_set_nr(struct intel_pt_decoder *decoder)
595 decoder->nr = decoder->pip_payload & 1;
596 decoder->next_nr = decoder->nr;
599 static inline void intel_pt_set_pip(struct intel_pt_decoder *decoder)
601 intel_pt_update_pip(decoder);
602 intel_pt_set_nr(decoder);
605 static int intel_pt_bad_packet(struct intel_pt_decoder *decoder)
607 intel_pt_clear_tx_flags(decoder);
608 decoder->have_tma = false;
609 decoder->pkt_len = 1;
610 decoder->pkt_step = 1;
611 intel_pt_decoder_log_packet(decoder);
612 if (decoder->pkt_state != INTEL_PT_STATE_NO_PSB) {
614 decoder->pkt_state = INTEL_PT_STATE_ERR1;
619 static inline void intel_pt_update_sample_time(struct intel_pt_decoder *decoder)
621 decoder->sample_timestamp = decoder->timestamp;
622 decoder->sample_insn_cnt = decoder->timestamp_insn_cnt;
623 decoder->state.cycles = decoder->tot_cyc_cnt;
626 static void intel_pt_reposition(struct intel_pt_decoder *decoder)
628 decoder->ip = 0;
629 decoder->pkt_state = INTEL_PT_STATE_NO_PSB;
630 decoder->timestamp = 0;
631 decoder->have_tma = false;
634 static int intel_pt_get_data(struct intel_pt_decoder *decoder, bool reposition)
639 decoder->pkt_step = 0;
642 ret = decoder->get_trace(&buffer, decoder->data);
645 decoder->buf = buffer.buf;
646 decoder->len = buffer.len;
647 if (!decoder->len) {
651 decoder->buf_timestamp = buffer.ref_timestamp;
653 intel_pt_reposition(decoder);
654 decoder->ref_timestamp = buffer.ref_timestamp;
655 decoder->state.trace_nr = buffer.trace_nr;
656 decoder->vm_tm_corr_same_buf = false;
658 decoder->ref_timestamp);
665 static int intel_pt_get_next_data(struct intel_pt_decoder *decoder,
668 if (!decoder->next_buf)
669 return intel_pt_get_data(decoder, reposition);
671 decoder->buf = decoder->next_buf;
672 decoder->len = decoder->next_len;
673 decoder->next_buf = 0;
674 decoder->next_len = 0;
678 static int intel_pt_get_split_packet(struct intel_pt_decoder *decoder)
680 unsigned char *buf = decoder->temp_buf;
684 old_len = decoder->len;
685 len = decoder->len;
686 memcpy(buf, decoder->buf, len);
688 ret = intel_pt_get_data(decoder, false);
690 decoder->pos += old_len;
695 if (n > decoder->len)
696 n = decoder->len;
697 memcpy(buf + len, decoder->buf, n);
700 decoder->prev_pkt_ctx = decoder->pkt_ctx;
701 ret = intel_pt_get_packet(buf, len, &decoder->packet, &decoder->pkt_ctx);
703 decoder->next_buf = decoder->buf;
704 decoder->next_len = decoder->len;
705 decoder->buf = buf;
706 decoder->len = old_len;
707 return intel_pt_bad_packet(decoder);
710 decoder->next_buf = decoder->buf + (ret - old_len);
711 decoder->next_len = decoder->len - (ret - old_len);
713 decoder->buf = buf;
714 decoder->len = ret;
720 struct intel_pt_decoder *decoder;
731 static int intel_pt_pkt_lookahead(struct intel_pt_decoder *decoder,
735 const unsigned char *buf = decoder->buf;
736 enum intel_pt_pkt_ctx pkt_ctx = decoder->pkt_ctx;
737 size_t len = decoder->len;
740 pkt_info.decoder = decoder;
741 pkt_info.pos = decoder->pos;
742 pkt_info.pkt_len = decoder->pkt_step;
743 pkt_info.last_packet_type = decoder->last_packet_type;
809 struct intel_pt_decoder *decoder = pkt_info->decoder;
845 if (decoder->mtc_shift > 8 && data->fixup_last_mtc) {
847 intel_pt_fixup_last_mtc(mtc, decoder->mtc_shift,
854 data->ctc_delta += mtc_delta << decoder->mtc_shift;
857 if (decoder->tsc_ctc_mult) {
859 data->ctc_delta * decoder->tsc_ctc_mult;
863 decoder->tsc_ctc_ratio_n,
864 decoder->tsc_ctc_ratio_d);
887 data->timestamp - timestamp < decoder->tsc_slip)
904 if (!decoder->tsc_ctc_ratio_d)
909 ctc_rem = ctc & decoder->ctc_rem_mask;
911 data->last_mtc = (ctc >> decoder->mtc_shift) & 0xff;
914 if (decoder->tsc_ctc_mult) {
915 data->ctc_timestamp -= ctc_rem * decoder->tsc_ctc_mult;
918 multdiv(ctc_rem, decoder->tsc_ctc_ratio_n,
919 decoder->tsc_ctc_ratio_d);
937 data->cbr_cyc_to_tsc = decoder->max_non_turbo_ratio_fp / cbr;
953 if (!data->cbr && decoder->cbr) {
954 data->cbr = decoder->cbr;
955 data->cbr_cyc_to_tsc = decoder->cbr_cyc_to_tsc;
961 cyc_to_tsc = (double)(timestamp - decoder->timestamp) / data->cycle_cnt;
970 decoder->calc_cyc_to_tsc = cyc_to_tsc;
971 decoder->have_calc_cyc_to_tsc = true;
984 static void intel_pt_calc_cyc_to_tsc(struct intel_pt_decoder *decoder,
990 .last_mtc = decoder->last_mtc,
991 .ctc_timestamp = decoder->ctc_timestamp,
992 .ctc_delta = decoder->ctc_delta,
993 .tsc_timestamp = decoder->tsc_timestamp,
994 .timestamp = decoder->timestamp,
995 .have_tma = decoder->have_tma,
996 .fixup_last_mtc = decoder->fixup_last_mtc,
1009 intel_pt_pkt_lookahead(decoder, intel_pt_calc_cyc_cb, &data);
1012 static int intel_pt_get_next_packet(struct intel_pt_decoder *decoder)
1016 decoder->last_packet_type = decoder->packet.type;
1019 decoder->pos += decoder->pkt_step;
1020 decoder->buf += decoder->pkt_step;
1021 decoder->len -= decoder->pkt_step;
1023 if (!decoder->len) {
1024 ret = intel_pt_get_next_data(decoder, false);
1029 decoder->prev_pkt_ctx = decoder->pkt_ctx;
1030 ret = intel_pt_get_packet(decoder->buf, decoder->len,
1031 &decoder->packet, &decoder->pkt_ctx);
1033 decoder->len < INTEL_PT_PKT_MAX_SZ && !decoder->next_buf) {
1034 ret = intel_pt_get_split_packet(decoder);
1039 return intel_pt_bad_packet(decoder);
1041 decoder->pkt_len = ret;
1042 decoder->pkt_step = ret;
1043 intel_pt_decoder_log_packet(decoder);
1044 } while (decoder->packet.type == INTEL_PT_PAD);
1049 static uint64_t intel_pt_next_period(struct intel_pt_decoder *decoder)
1053 timestamp = decoder->timestamp + decoder->timestamp_insn_cnt;
1054 masked_timestamp = timestamp & decoder->period_mask;
1055 if (decoder->continuous_period) {
1056 if (masked_timestamp > decoder->last_masked_timestamp)
1060 masked_timestamp = timestamp & decoder->period_mask;
1061 if (masked_timestamp > decoder->last_masked_timestamp) {
1062 decoder->last_masked_timestamp = masked_timestamp;
1063 decoder->continuous_period = true;
1067 if (masked_timestamp < decoder->last_masked_timestamp)
1068 return decoder->period_ticks;
1070 return decoder->period_ticks - (timestamp - masked_timestamp);
1073 static uint64_t intel_pt_next_sample(struct intel_pt_decoder *decoder)
1075 switch (decoder->period_type) {
1077 return decoder->period - decoder->period_insn_cnt;
1079 return intel_pt_next_period(decoder);
1087 static void intel_pt_sample_insn(struct intel_pt_decoder *decoder)
1091 switch (decoder->period_type) {
1093 decoder->period_insn_cnt = 0;
1096 timestamp = decoder->timestamp + decoder->timestamp_insn_cnt;
1097 masked_timestamp = timestamp & decoder->period_mask;
1098 if (masked_timestamp > decoder->last_masked_timestamp)
1099 decoder->last_masked_timestamp = masked_timestamp;
1101 decoder->last_masked_timestamp += decoder->period_ticks;
1109 decoder->state.type |= INTEL_PT_INSTRUCTION;
1116 static void intel_pt_sample_fup_insn(struct intel_pt_decoder *decoder)
1122 decoder->state.insn_op = INTEL_PT_OP_OTHER;
1123 decoder->state.insn_len = 0;
1125 if (!decoder->branch_enable || !decoder->pge || decoder->hop ||
1126 decoder->ip != decoder->last_ip)
1129 if (!decoder->mtc_insn)
1130 decoder->mtc_insn = true;
1132 max_insn_cnt = intel_pt_next_sample(decoder);
1136 err = decoder->walk_insn(&intel_pt_insn, &insn_cnt, &decoder->ip,
1137 0, max_insn_cnt, decoder->data);
1143 intel_pt_log_at("ERROR: Unexpected branch at FUP instruction", decoder->ip);
1147 decoder->tot_insn_cnt += insn_cnt;
1148 decoder->timestamp_insn_cnt += insn_cnt;
1149 decoder->sample_insn_cnt += insn_cnt;
1150 decoder->period_insn_cnt += insn_cnt;
1152 intel_pt_sample_insn(decoder);
1154 decoder->state.type |= INTEL_PT_INSTRUCTION;
1155 decoder->ip += intel_pt_insn.length;
1158 static int intel_pt_walk_insn(struct intel_pt_decoder *decoder,
1164 if (!decoder->mtc_insn)
1165 decoder->mtc_insn = true;
1167 max_insn_cnt = intel_pt_next_sample(decoder);
1169 err = decoder->walk_insn(intel_pt_insn, &insn_cnt, &decoder->ip, ip,
1170 max_insn_cnt, decoder->data);
1172 decoder->tot_insn_cnt += insn_cnt;
1173 decoder->timestamp_insn_cnt += insn_cnt;
1174 decoder->sample_insn_cnt += insn_cnt;
1175 decoder->period_insn_cnt += insn_cnt;
1178 decoder->no_progress = 0;
1179 decoder->pkt_state = INTEL_PT_STATE_ERR2;
1181 decoder->ip);
1187 if (ip && decoder->ip == ip) {
1193 intel_pt_sample_insn(decoder);
1196 decoder->state.type = INTEL_PT_INSTRUCTION;
1197 decoder->state.from_ip = decoder->ip;
1198 decoder->state.to_ip = 0;
1199 decoder->ip += intel_pt_insn->length;
1208 err = intel_pt_push(&decoder->stack, decoder->ip +
1214 decoder->ret_addr = intel_pt_pop(&decoder->stack);
1218 int cnt = decoder->no_progress++;
1220 decoder->state.from_ip = decoder->ip;
1221 decoder->ip += intel_pt_insn->length +
1223 decoder->state.to_ip = decoder->ip;
1228 * decoder error results in the decoder erroneously setting the
1235 decoder->stuck_ip = decoder->state.to_ip;
1236 decoder->stuck_ip_prd = 1;
1237 decoder->stuck_ip_cnt = 1;
1238 } else if (cnt > decoder->max_loops ||
1239 decoder->state.to_ip == decoder->stuck_ip) {
1241 decoder->state.to_ip);
1242 decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
1245 } else if (!--decoder->stuck_ip_cnt) {
1246 decoder->stuck_ip_prd += 1;
1247 decoder->stuck_ip_cnt = decoder->stuck_ip_prd;
1248 decoder->stuck_ip = decoder->state.to_ip;
1254 decoder->no_progress = 0;
1256 decoder->state.insn_op = intel_pt_insn->op;
1257 decoder->state.insn_len = intel_pt_insn->length;
1258 memcpy(decoder->state.insn, intel_pt_insn->buf,
1261 if (decoder->tx_flags & INTEL_PT_IN_TX)
1262 decoder->state.flags |= INTEL_PT_IN_TX;
1267 static void intel_pt_mode_exec_status(struct intel_pt_decoder *decoder)
1269 bool iflag = decoder->packet.count & INTEL_PT_IFLAG;
1271 decoder->exec_mode = decoder->packet.payload;
1272 decoder->iflag = iflag;
1273 decoder->next_iflag = iflag;
1274 decoder->state.from_iflag = iflag;
1275 decoder->state.to_iflag = iflag;
1278 static void intel_pt_mode_exec(struct intel_pt_decoder *decoder)
1280 bool iflag = decoder->packet.count & INTEL_PT_IFLAG;
1282 decoder->exec_mode = decoder->packet.payload;
1283 decoder->next_iflag = iflag;
1286 static void intel_pt_sample_iflag(struct intel_pt_decoder *decoder)
1288 decoder->state.type |= INTEL_PT_IFLAG_CHG;
1289 decoder->state.from_iflag = decoder->iflag;
1290 decoder->state.to_iflag = decoder->next_iflag;
1291 decoder->iflag = decoder->next_iflag;
1294 static void intel_pt_sample_iflag_chg(struct intel_pt_decoder *decoder)
1296 if (decoder->iflag != decoder->next_iflag)
1297 intel_pt_sample_iflag(decoder);
1300 static void intel_pt_clear_fup_event(struct intel_pt_decoder *decoder)
1302 decoder->set_fup_tx_flags = false;
1303 decoder->set_fup_ptw = false;
1304 decoder->set_fup_mwait = false;
1305 decoder->set_fup_pwre = false;
1306 decoder->set_fup_exstop = false;
1307 decoder->set_fup_bep = false;
1308 decoder->set_fup_cfe_ip = false;
1309 decoder->set_fup_cfe = false;
1310 decoder->evd_cnt = 0;
1311 decoder->set_fup_mode_exec = false;
1312 decoder->iflag = decoder->next_iflag;
1315 static bool intel_pt_fup_event(struct intel_pt_decoder *decoder, bool no_tip)
1317 enum intel_pt_sample_type type = decoder->state.type;
1321 decoder->state.type &= ~INTEL_PT_BRANCH;
1322 decoder->state.insn_op = INTEL_PT_OP_OTHER;
1323 decoder->state.insn_len = 0;
1325 if (decoder->set_fup_cfe_ip || decoder->set_fup_cfe) {
1326 bool ip = decoder->set_fup_cfe_ip;
1328 decoder->set_fup_cfe_ip = false;
1329 decoder->set_fup_cfe = false;
1330 decoder->state.type |= INTEL_PT_EVT;
1331 if (!ip && decoder->pge)
1332 decoder->state.type |= INTEL_PT_BRANCH;
1333 decoder->state.cfe_type = decoder->fup_cfe_pkt.count;
1334 decoder->state.cfe_vector = decoder->fup_cfe_pkt.payload;
1335 decoder->state.evd_cnt = decoder->evd_cnt;
1336 decoder->state.evd = decoder->evd;
1337 decoder->evd_cnt = 0;
1338 if (ip || decoder->pge)
1339 decoder->state.flags |= INTEL_PT_FUP_IP;
1342 if (decoder->set_fup_mode_exec) {
1343 decoder->set_fup_mode_exec = false;
1344 intel_pt_sample_iflag(decoder);
1348 if (decoder->set_fup_tx_flags) {
1349 decoder->set_fup_tx_flags = false;
1350 decoder->tx_flags = decoder->fup_tx_flags;
1351 decoder->state.type |= INTEL_PT_TRANSACTION;
1352 if (decoder->fup_tx_flags & INTEL_PT_ABORT_TX)
1353 decoder->state.type |= INTEL_PT_BRANCH;
1354 decoder->state.flags = decoder->fup_tx_flags;
1357 if (decoder->set_fup_ptw) {
1358 decoder->set_fup_ptw = false;
1359 decoder->state.type |= INTEL_PT_PTW;
1360 decoder->state.flags |= INTEL_PT_FUP_IP;
1361 decoder->state.ptw_payload = decoder->fup_ptw_payload;
1364 if (decoder->set_fup_mwait) {
1365 decoder->set_fup_mwait = false;
1366 decoder->state.type |= INTEL_PT_MWAIT_OP;
1367 decoder->state.mwait_payload = decoder->fup_mwait_payload;
1370 if (decoder->set_fup_pwre) {
1371 decoder->set_fup_pwre = false;
1372 decoder->state.type |= INTEL_PT_PWR_ENTRY;
1373 decoder->state.pwre_payload = decoder->fup_pwre_payload;
1376 if (decoder->set_fup_exstop) {
1377 decoder->set_fup_exstop = false;
1378 decoder->state.type |= INTEL_PT_EX_STOP;
1379 decoder->state.flags |= INTEL_PT_FUP_IP;
1382 if (decoder->set_fup_bep) {
1383 decoder->set_fup_bep = false;
1384 decoder->state.type |= INTEL_PT_BLK_ITEMS;
1387 if (decoder->overflow) {
1388 decoder->overflow = false;
1389 if (!ret && !decoder->pge) {
1390 if (decoder->hop) {
1391 decoder->state.type = 0;
1392 decoder->pkt_state = INTEL_PT_STATE_RESAMPLE;
1394 decoder->pge = true;
1395 decoder->state.type |= INTEL_PT_BRANCH | INTEL_PT_TRACE_BEGIN;
1396 decoder->state.from_ip = 0;
1397 decoder->state.to_ip = decoder->ip;
1402 decoder->state.from_ip = decoder->ip;
1403 decoder->state.to_ip = 0;
1405 intel_pt_sample_fup_insn(decoder);
1407 decoder->state.type = type;
1412 static inline bool intel_pt_fup_with_nlip(struct intel_pt_decoder *decoder,
1416 return decoder->flags & INTEL_PT_FUP_WITH_NLIP && !err &&
1418 ip == decoder->ip + intel_pt_insn->length;
1421 static int intel_pt_walk_fup(struct intel_pt_decoder *decoder)
1427 ip = decoder->last_ip;
1430 err = intel_pt_walk_insn(decoder, &intel_pt_insn, ip);
1434 intel_pt_fup_with_nlip(decoder, &intel_pt_insn, ip, err)) {
1435 bool no_tip = decoder->pkt_state != INTEL_PT_STATE_FUP;
1437 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1438 if (intel_pt_fup_event(decoder, no_tip) && no_tip)
1442 decoder->set_fup_tx_flags = false;
1448 decoder->ip);
1449 decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
1455 decoder->ip);
1456 decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
1460 intel_pt_bug(decoder);
1464 static int intel_pt_walk_tip(struct intel_pt_decoder *decoder)
1469 err = intel_pt_walk_insn(decoder, &intel_pt_insn, 0);
1471 decoder->pgd_ip &&
1472 decoder->pkt_state == INTEL_PT_STATE_TIP_PGD &&
1473 (decoder->state.type & INTEL_PT_BRANCH) &&
1474 decoder->pgd_ip(decoder->state.to_ip, decoder->data)) {
1476 decoder->no_progress = 0;
1477 decoder->pge = false;
1478 decoder->continuous_period = false;
1479 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1480 decoder->state.type |= INTEL_PT_TRACE_END;
1481 intel_pt_update_nr(decoder);
1489 intel_pt_update_nr(decoder);
1490 intel_pt_sample_iflag_chg(decoder);
1493 if (decoder->pkt_state == INTEL_PT_STATE_TIP_PGD) {
1494 decoder->pge = false;
1495 decoder->continuous_period = false;
1496 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1497 decoder->state.from_ip = decoder->ip;
1498 if (decoder->packet.count == 0) {
1499 decoder->state.to_ip = 0;
1501 decoder->state.to_ip = decoder->last_ip;
1502 decoder->ip = decoder->last_ip;
1504 decoder->state.type |= INTEL_PT_TRACE_END;
1506 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1507 decoder->state.from_ip = decoder->ip;
1508 if (decoder->packet.count == 0) {
1509 decoder->state.to_ip = 0;
1511 decoder->state.to_ip = decoder->last_ip;
1512 decoder->ip = decoder->last_ip;
1519 uint64_t to_ip = decoder->ip + intel_pt_insn.length +
1522 if (decoder->pgd_ip &&
1523 decoder->pkt_state == INTEL_PT_STATE_TIP_PGD &&
1524 decoder->pgd_ip(to_ip, decoder->data)) {
1526 decoder->pge = false;
1527 decoder->continuous_period = false;
1528 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1529 decoder->ip = to_ip;
1530 decoder->state.from_ip = decoder->ip;
1531 decoder->state.to_ip = to_ip;
1532 decoder->state.type |= INTEL_PT_TRACE_END;
1536 decoder->ip);
1537 decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
1541 return intel_pt_bug(decoder);
1607 static int intel_pt_emulated_ptwrite(struct intel_pt_decoder *decoder)
1609 int n = 64 - decoder->tnt.count;
1612 .payload = decoder->tnt.payload >> n,
1615 decoder->emulated_ptwrite = false;
1618 intel_pt_pkt_lookahead(decoder, intel_pt_eptw_lookahead_cb, &data);
1622 decoder->state.type = INTEL_PT_PTW;
1623 decoder->state.from_ip = decoder->ip;
1624 decoder->state.to_ip = 0;
1625 decoder->state.ptw_payload = data.payload;
1629 static int intel_pt_walk_tnt(struct intel_pt_decoder *decoder)
1635 if (decoder->emulated_ptwrite)
1636 return intel_pt_emulated_ptwrite(decoder);
1637 err = intel_pt_walk_insn(decoder, &intel_pt_insn, 0);
1639 decoder->emulated_ptwrite = intel_pt_insn.emulated_ptwrite;
1643 decoder->emulated_ptwrite = false;
1648 if (!decoder->return_compression) {
1650 decoder->ip);
1651 decoder->pkt_state = INTEL_PT_STATE_ERR3;
1654 if (!decoder->ret_addr) {
1656 decoder->ip);
1657 decoder->pkt_state = INTEL_PT_STATE_ERR3;
1660 if (!(decoder->tnt.payload & BIT63)) {
1662 decoder->ip);
1663 decoder->pkt_state = INTEL_PT_STATE_ERR3;
1666 decoder->tnt.count -= 1;
1667 if (decoder->tnt.count)
1668 decoder->pkt_state = INTEL_PT_STATE_TNT_CONT;
1670 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1671 decoder->tnt.payload <<= 1;
1672 decoder->state.from_ip = decoder->ip;
1673 decoder->ip = decoder->ret_addr;
1674 decoder->state.to_ip = decoder->ip;
1680 err = intel_pt_get_next_packet(decoder);
1683 if (decoder->packet.type != INTEL_PT_TIP ||
1684 decoder->packet.count == 0) {
1686 decoder->ip);
1687 decoder->pkt_state = INTEL_PT_STATE_ERR3;
1688 decoder->pkt_step = 0;
1691 intel_pt_set_last_ip(decoder);
1692 decoder->state.from_ip = decoder->ip;
1693 decoder->state.to_ip = decoder->last_ip;
1694 decoder->ip = decoder->last_ip;
1695 intel_pt_update_nr(decoder);
1696 intel_pt_sample_iflag_chg(decoder);
1701 decoder->tnt.count -= 1;
1702 if (decoder->tnt.count)
1703 decoder->pkt_state = INTEL_PT_STATE_TNT_CONT;
1705 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1706 if (decoder->tnt.payload & BIT63) {
1707 decoder->tnt.payload <<= 1;
1708 decoder->state.from_ip = decoder->ip;
1709 decoder->ip += intel_pt_insn.length +
1711 decoder->state.to_ip = decoder->ip;
1715 if (decoder->state.type & INTEL_PT_INSTRUCTION) {
1716 decoder->tnt.payload <<= 1;
1717 decoder->state.type = INTEL_PT_INSTRUCTION;
1718 decoder->state.from_ip = decoder->ip;
1719 decoder->state.to_ip = 0;
1720 decoder->ip += intel_pt_insn.length;
1723 decoder->sample_cyc = false;
1724 decoder->ip += intel_pt_insn.length;
1725 if (!decoder->tnt.count) {
1726 intel_pt_update_sample_time(decoder);
1729 decoder->tnt.payload <<= 1;
1733 return intel_pt_bug(decoder);
1737 static int intel_pt_mode_tsx(struct intel_pt_decoder *decoder, bool *no_tip)
1742 fup_tx_flags = decoder->packet.payload &
1744 err = intel_pt_get_next_packet(decoder);
1747 if (decoder->packet.type == INTEL_PT_FUP) {
1748 decoder->fup_tx_flags = fup_tx_flags;
1749 decoder->set_fup_tx_flags = true;
1750 if (!(decoder->fup_tx_flags & INTEL_PT_ABORT_TX))
1754 decoder->pos);
1755 intel_pt_update_in_tx(decoder);
1760 static int intel_pt_evd(struct intel_pt_decoder *decoder)
1762 if (decoder->evd_cnt >= INTEL_PT_MAX_EVDS) {
1763 intel_pt_log_at("ERROR: Too many EVD packets", decoder->pos);
1766 decoder->evd[decoder->evd_cnt++] = (struct intel_pt_evd){
1767 .type = decoder->packet.count,
1768 .payload = decoder->packet.payload,
1788 /* For use only when decoder->vm_time_correlation is true */
1789 static bool intel_pt_time_in_range(struct intel_pt_decoder *decoder,
1792 uint64_t max_timestamp = decoder->buf_timestamp;
1795 max_timestamp = decoder->last_reliable_timestamp +
1798 return timestamp >= decoder->last_reliable_timestamp &&
1799 timestamp < decoder->buf_timestamp;
1802 static void intel_pt_calc_tsc_timestamp(struct intel_pt_decoder *decoder)
1807 decoder->have_tma = false;
1809 if (decoder->ref_timestamp) {
1810 timestamp = intel_pt_8b_tsc(decoder->packet.payload,
1811 decoder->ref_timestamp);
1812 decoder->tsc_timestamp = timestamp;
1813 decoder->timestamp = timestamp;
1814 decoder->ref_timestamp = 0;
1815 decoder->timestamp_insn_cnt = 0;
1816 } else if (decoder->timestamp) {
1817 timestamp = decoder->packet.payload |
1818 (decoder->timestamp & (0xffULL << 56));
1819 decoder->tsc_timestamp = timestamp;
1820 if (timestamp < decoder->timestamp &&
1821 decoder->timestamp - timestamp < decoder->tsc_slip) {
1824 timestamp = decoder->timestamp;
1826 if (timestamp < decoder->timestamp) {
1827 if (!decoder->buf_timestamp ||
1828 (timestamp + (1ULL << 56) < decoder->buf_timestamp)) {
1831 decoder->tsc_timestamp = timestamp;
1834 timestamp = decoder->timestamp;
1838 if (decoder->vm_time_correlation &&
1839 (bad || !intel_pt_time_in_range(decoder, timestamp)) &&
1840 intel_pt_print_once(decoder, INTEL_PT_PRT_ONCE_ERANGE))
1842 decoder->timestamp = timestamp;
1843 decoder->timestamp_insn_cnt = 0;
1846 if (decoder->last_packet_type == INTEL_PT_CYC) {
1847 decoder->cyc_ref_timestamp = decoder->timestamp;
1848 decoder->cycle_cnt = 0;
1849 decoder->have_calc_cyc_to_tsc = false;
1850 intel_pt_calc_cyc_to_tsc(decoder, false);
1853 intel_pt_log_to("Setting timestamp", decoder->timestamp);
1856 static int intel_pt_overflow(struct intel_pt_decoder *decoder)
1859 intel_pt_clear_tx_flags(decoder);
1860 intel_pt_set_nr(decoder);
1861 decoder->timestamp_insn_cnt = 0;
1862 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1863 decoder->state.from_ip = decoder->ip;
1864 decoder->ip = 0;
1865 decoder->pge = false;
1866 intel_pt_clear_fup_event(decoder);
1867 decoder->overflow = true;
1871 static inline void intel_pt_mtc_cyc_cnt_pge(struct intel_pt_decoder *decoder)
1873 if (decoder->have_cyc)
1876 decoder->cyc_cnt_timestamp = decoder->timestamp;
1877 decoder->base_cyc_cnt = decoder->tot_cyc_cnt;
1880 static inline void intel_pt_mtc_cyc_cnt_cbr(struct intel_pt_decoder *decoder)
1882 decoder->tsc_to_cyc = decoder->cbr / decoder->max_non_turbo_ratio_fp;
1884 if (decoder->pge)
1885 intel_pt_mtc_cyc_cnt_pge(decoder);
1888 static inline void intel_pt_mtc_cyc_cnt_upd(struct intel_pt_decoder *decoder)
1892 if (decoder->have_cyc)
1895 decoder->sample_cyc = true;
1897 if (!decoder->pge || decoder->timestamp <= decoder->cyc_cnt_timestamp)
1900 tsc_delta = decoder->timestamp - decoder->cyc_cnt_timestamp;
1901 tot_cyc_cnt = tsc_delta * decoder->tsc_to_cyc + decoder->base_cyc_cnt;
1903 if (tot_cyc_cnt > decoder->tot_cyc_cnt)
1904 decoder->tot_cyc_cnt = tot_cyc_cnt;
1907 static void intel_pt_calc_tma(struct intel_pt_decoder *decoder)
1909 uint32_t ctc = decoder->packet.payload;
1910 uint32_t fc = decoder->packet.count;
1911 uint32_t ctc_rem = ctc & decoder->ctc_rem_mask;
1913 if (!decoder->tsc_ctc_ratio_d)
1916 if (decoder->pge && !decoder->in_psb)
1917 intel_pt_mtc_cyc_cnt_pge(decoder);
1919 intel_pt_mtc_cyc_cnt_upd(decoder);
1921 decoder->last_mtc = (ctc >> decoder->mtc_shift) & 0xff;
1922 decoder->last_ctc = ctc - ctc_rem;
1923 decoder->ctc_timestamp = decoder->tsc_timestamp - fc;
1924 if (decoder->tsc_ctc_mult) {
1925 decoder->ctc_timestamp -= ctc_rem * decoder->tsc_ctc_mult;
1927 decoder->ctc_timestamp -= multdiv(ctc_rem,
1928 decoder->tsc_ctc_ratio_n,
1929 decoder->tsc_ctc_ratio_d);
1931 decoder->ctc_delta = 0;
1932 decoder->have_tma = true;
1933 decoder->fixup_last_mtc = true;
1935 decoder->ctc_timestamp, decoder->last_mtc, ctc_rem);
1938 static void intel_pt_calc_mtc_timestamp(struct intel_pt_decoder *decoder)
1943 if (!decoder->have_tma)
1946 mtc = decoder->packet.payload;
1948 if (decoder->mtc_shift > 8 && decoder->fixup_last_mtc) {
1949 decoder->fixup_last_mtc = false;
1950 intel_pt_fixup_last_mtc(mtc, decoder->mtc_shift,
1951 &decoder->last_mtc);
1954 if (mtc > decoder->last_mtc)
1955 mtc_delta = mtc - decoder->last_mtc;
1957 mtc_delta = mtc + 256 - decoder->last_mtc;
1959 decoder->ctc_delta += mtc_delta << decoder->mtc_shift;
1961 if (decoder->tsc_ctc_mult) {
1962 timestamp = decoder->ctc_timestamp +
1963 decoder->ctc_delta * decoder->tsc_ctc_mult;
1965 timestamp = decoder->ctc_timestamp +
1966 multdiv(decoder->ctc_delta,
1967 decoder->tsc_ctc_ratio_n,
1968 decoder->tsc_ctc_ratio_d);
1971 if (timestamp < decoder->timestamp)
1973 timestamp, decoder->timestamp);
1975 decoder->timestamp = timestamp;
1977 intel_pt_mtc_cyc_cnt_upd(decoder);
1979 decoder->timestamp_insn_cnt = 0;
1980 decoder->last_mtc = mtc;
1982 if (decoder->last_packet_type == INTEL_PT_CYC) {
1983 decoder->cyc_ref_timestamp = decoder->timestamp;
1984 decoder->cycle_cnt = 0;
1985 decoder->have_calc_cyc_to_tsc = false;
1986 intel_pt_calc_cyc_to_tsc(decoder, true);
1989 intel_pt_log_to("Setting timestamp", decoder->timestamp);
1992 static void intel_pt_calc_cbr(struct intel_pt_decoder *decoder)
1994 unsigned int cbr = decoder->packet.payload & 0xff;
1996 decoder->cbr_payload = decoder->packet.payload;
1998 if (decoder->cbr == cbr)
2001 decoder->cbr = cbr;
2002 decoder->cbr_cyc_to_tsc = decoder->max_non_turbo_ratio_fp / cbr;
2003 decoder->cyc_ref_timestamp = decoder->timestamp;
2004 decoder->cycle_cnt = 0;
2006 intel_pt_mtc_cyc_cnt_cbr(decoder);
2009 static void intel_pt_calc_cyc_timestamp(struct intel_pt_decoder *decoder)
2011 uint64_t timestamp = decoder->cyc_ref_timestamp;
2013 decoder->have_cyc = true;
2015 decoder->cycle_cnt += decoder->packet.payload;
2016 if (decoder->pge)
2017 decoder->tot_cyc_cnt += decoder->packet.payload;
2018 decoder->sample_cyc = true;
2020 if (!decoder->cyc_ref_timestamp)
2023 if (decoder->have_calc_cyc_to_tsc)
2024 timestamp += decoder->cycle_cnt * decoder->calc_cyc_to_tsc;
2025 else if (decoder->cbr)
2026 timestamp += decoder->cycle_cnt * decoder->cbr_cyc_to_tsc;
2030 if (timestamp < decoder->timestamp)
2032 timestamp, decoder->timestamp);
2034 decoder->timestamp = timestamp;
2036 decoder->timestamp_insn_cnt = 0;
2038 intel_pt_log_to("Setting timestamp", decoder->timestamp);
2041 static void intel_pt_bbp(struct intel_pt_decoder *decoder)
2043 if (decoder->prev_pkt_ctx == INTEL_PT_NO_CTX) {
2044 memset(decoder->state.items.mask, 0, sizeof(decoder->state.items.mask));
2045 decoder->state.items.is_32_bit = false;
2047 decoder->blk_type = decoder->packet.payload;
2048 decoder->blk_type_pos = intel_pt_blk_type_pos(decoder->blk_type);
2049 if (decoder->blk_type == INTEL_PT_GP_REGS)
2050 decoder->state.items.is_32_bit = decoder->packet.count;
2051 if (decoder->blk_type_pos < 0) {
2053 decoder->blk_type);
2054 } else if (decoder->state.items.mask[decoder->blk_type_pos]) {
2056 decoder->blk_type);
2060 static void intel_pt_bip(struct intel_pt_decoder *decoder)
2062 uint32_t id = decoder->packet.count;
2064 int pos = decoder->blk_type_pos;
2068 id, decoder->blk_type);
2072 if (decoder->state.items.mask[pos] & bit) {
2074 id, decoder->blk_type);
2077 decoder->state.items.mask[pos] |= bit;
2078 decoder->state.items.val[pos][id] = decoder->packet.payload;
2082 static int intel_pt_walk_psbend(struct intel_pt_decoder *decoder)
2086 decoder->in_psb = true;
2089 err = intel_pt_get_next_packet(decoder);
2093 switch (decoder->packet.type) {
2119 decoder->have_tma = false;
2125 err = intel_pt_overflow(decoder);
2129 intel_pt_calc_tsc_timestamp(decoder);
2133 intel_pt_calc_tma(decoder);
2137 intel_pt_calc_cbr(decoder);
2141 intel_pt_mode_exec_status(decoder);
2145 intel_pt_set_pip(decoder);
2149 decoder->pge = true;
2150 if (decoder->packet.count) {
2151 intel_pt_set_last_ip(decoder);
2152 decoder->psb_ip = decoder->last_ip;
2157 intel_pt_update_in_tx(decoder);
2161 intel_pt_calc_mtc_timestamp(decoder);
2162 if (decoder->period_type == INTEL_PT_PERIOD_MTC)
2163 decoder->state.type |= INTEL_PT_INSTRUCTION;
2167 intel_pt_calc_cyc_timestamp(decoder);
2178 decoder->in_psb = false;
2183 static int intel_pt_walk_fup_tip(struct intel_pt_decoder *decoder)
2187 if (decoder->tx_flags & INTEL_PT_ABORT_TX) {
2188 decoder->tx_flags = 0;
2189 decoder->state.flags &= ~INTEL_PT_IN_TX;
2190 decoder->state.flags |= INTEL_PT_ABORT_TX;
2192 decoder->state.flags |= INTEL_PT_ASYNC;
2196 err = intel_pt_get_next_packet(decoder);
2200 switch (decoder->packet.type) {
2225 decoder->pkt_state = INTEL_PT_STATE_ERR3;
2226 decoder->pkt_step = 0;
2230 intel_pt_calc_cbr(decoder);
2234 return intel_pt_overflow(decoder);
2237 decoder->state.from_ip = decoder->ip;
2238 if (decoder->packet.count == 0) {
2239 decoder->state.to_ip = 0;
2241 intel_pt_set_ip(decoder);
2242 decoder->state.to_ip = decoder->ip;
2244 decoder->pge = false;
2245 decoder->continuous_period = false;
2246 decoder->state.type |= INTEL_PT_TRACE_END;
2247 intel_pt_update_nr(decoder);
2251 decoder->pge = true;
2253 decoder->ip);
2254 decoder->state.from_ip = 0;
2255 if (decoder->packet.count == 0) {
2256 decoder->state.to_ip = 0;
2258 intel_pt_set_ip(decoder);
2259 decoder->state.to_ip = decoder->ip;
2261 decoder->state.type |= INTEL_PT_TRACE_BEGIN;
2262 intel_pt_mtc_cyc_cnt_pge(decoder);
2263 intel_pt_set_nr(decoder);
2267 decoder->state.from_ip = decoder->ip;
2268 if (decoder->packet.count == 0) {
2269 decoder->state.to_ip = 0;
2271 intel_pt_set_ip(decoder);
2272 decoder->state.to_ip = decoder->ip;
2274 intel_pt_update_nr(decoder);
2275 intel_pt_sample_iflag_chg(decoder);
2279 intel_pt_update_pip(decoder);
2283 intel_pt_calc_mtc_timestamp(decoder);
2284 if (decoder->period_type == INTEL_PT_PERIOD_MTC)
2285 decoder->state.type |= INTEL_PT_INSTRUCTION;
2289 intel_pt_calc_cyc_timestamp(decoder);
2293 intel_pt_mode_exec(decoder);
2302 return intel_pt_bug(decoder);
2307 static int intel_pt_resample(struct intel_pt_decoder *decoder)
2309 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
2310 decoder->state.type = INTEL_PT_INSTRUCTION;
2311 decoder->state.from_ip = decoder->ip;
2312 decoder->state.to_ip = 0;
2412 static bool intel_pt_ovf_fup_lookahead(struct intel_pt_decoder *decoder)
2419 intel_pt_pkt_lookahead(decoder, intel_pt_ovf_fup_lookahead_cb, &data);
2439 static uint64_t intel_pt_ctc_to_tsc(struct intel_pt_decoder *decoder, uint64_t ctc)
2441 if (decoder->tsc_ctc_mult)
2442 return ctc * decoder->tsc_ctc_mult;
2444 return multdiv(ctc, decoder->tsc_ctc_ratio_n, decoder->tsc_ctc_ratio_d);
2447 static uint64_t intel_pt_calc_expected_tsc(struct intel_pt_decoder *decoder,
2470 expected_tsc = last_ctc_timestamp + intel_pt_ctc_to_tsc(decoder, new_ctc_delta) + fc;
2481 intel_pt_log_x64(intel_pt_ctc_to_tsc(decoder, new_ctc_delta));
2488 static uint64_t intel_pt_expected_tsc(struct intel_pt_decoder *decoder,
2494 return intel_pt_calc_expected_tsc(decoder, ctc, fc,
2495 decoder->ctc_timestamp,
2499 static void intel_pt_translate_vm_tsc(struct intel_pt_decoder *decoder,
2502 uint64_t payload = decoder->packet.payload;
2505 decoder->packet.payload -= vmcs_info->tsc_offset;
2507 decoder->packet.payload &= SEVEN_BYTES;
2513 if (!decoder->vm_tm_corr_dry_run)
2514 memcpy((void *)decoder->buf + 1, &decoder->packet.payload, 7);
2518 payload, decoder->packet.payload, vmcs_info->vmcs,
2522 static void intel_pt_translate_vm_tsc_offset(struct intel_pt_decoder *decoder,
2530 intel_pt_translate_vm_tsc(decoder, &vmcs_info);
2549 static void intel_pt_vm_tm_corr_psb(struct intel_pt_decoder *decoder,
2553 data->ctc_delta = decoder->ctc_delta;
2554 data->last_ctc = decoder->last_ctc;
2555 intel_pt_pkt_lookahead(decoder, intel_pt_vm_psb_lookahead_cb, data);
2558 decoder->in_psb = data->psbend;
2561 static void intel_pt_vm_tm_corr_first_tsc(struct intel_pt_decoder *decoder,
2566 if (!decoder->in_psb) {
2574 intel_pt_translate_vm_tsc(decoder, vmcs_info);
2575 decoder->vm_tm_corr_reliable = true;
2580 decoder->vm_tm_corr_reliable = true;
2583 decoder->vm_tm_corr_reliable = false;
2584 if (intel_pt_time_in_range(decoder, host_tsc)) {
2589 intel_pt_translate_vm_tsc(decoder, vmcs_info);
2596 static void intel_pt_vm_tm_corr_tsc(struct intel_pt_decoder *decoder,
2611 if (!decoder->in_psb) {
2613 data->ctc_delta = decoder->ctc_delta;
2614 data->last_ctc = decoder->last_ctc;
2616 intel_pt_pkt_lookahead(decoder, intel_pt_tma_lookahead_cb, data);
2617 if (decoder->pge) {
2619 data->pip_packet.payload = decoder->pip_payload;
2629 vmcs = data->vmcs ? data->vmcs_packet.payload : decoder->vmcs;
2633 vmcs_info = decoder->findnew_vmcs_info(decoder->data, vmcs);
2635 ref_timestamp = decoder->timestamp ? decoder->timestamp : decoder->buf_timestamp;
2636 host_tsc = intel_pt_8b_tsc(decoder->packet.payload, ref_timestamp);
2638 if (!decoder->ctc_timestamp) {
2639 intel_pt_vm_tm_corr_first_tsc(decoder, data, vmcs_info, host_tsc);
2643 expected_tsc = intel_pt_expected_tsc(decoder, data);
2653 intel_pt_translate_vm_tsc_offset(decoder, tsc_offset);
2654 decoder->vm_tm_corr_reliable = false;
2658 decoder->last_reliable_timestamp = host_tsc;
2659 decoder->vm_tm_corr_reliable = true;
2664 if (decoder->in_psb) {
2687 if (host_tsc >= expected_tsc && intel_pt_time_in_range(decoder, host_tsc)) {
2689 decoder->vm_tm_corr_reliable = false;
2700 } else if (decoder->in_psb && data->pip && decoder->vm_tm_corr_reliable &&
2701 decoder->vm_tm_corr_continuous && decoder->vm_tm_corr_same_buf) {
2705 } else if (decoder->in_psb && data->pip && decoder->vm_tm_corr_same_buf) {
2730 intel_pt_translate_vm_tsc(decoder, vmcs_info);
2740 if (intel_pt_print_once(decoder, INTEL_PT_PRT_ONCE_UNK_VMCS))
2743 intel_pt_translate_vm_tsc_offset(decoder, tsc_offset);
2746 decoder->vm_tm_corr_reliable = reliable;
2749 static void intel_pt_vm_tm_corr_pebs_tsc(struct intel_pt_decoder *decoder)
2751 uint64_t host_tsc = decoder->packet.payload;
2752 uint64_t guest_tsc = decoder->packet.payload;
2756 vmcs = decoder->vmcs;
2760 vmcs_info = decoder->findnew_vmcs_info(decoder->data, vmcs);
2762 if (decoder->pge) {
2763 if (in_vm(decoder->pip_payload)) { /* Guest */
2772 if (intel_pt_time_in_range(decoder, host_tsc)) {
2781 host_tsc = intel_pt_8b_tsc(host_tsc, decoder->timestamp);
2786 if (!intel_pt_time_in_range(decoder, host_tsc) &&
2787 intel_pt_print_once(decoder, INTEL_PT_PRT_ONCE_ERANGE))
2790 if (intel_pt_print_once(decoder, INTEL_PT_PRT_ONCE_UNK_VMCS))
2792 host_tsc = decoder->timestamp;
2795 decoder->packet.payload = host_tsc;
2797 if (!decoder->vm_tm_corr_dry_run)
2798 memcpy((void *)decoder->buf + 1, &host_tsc, 8);
2801 static int intel_pt_vm_time_correlation(struct intel_pt_decoder *decoder)
2807 if (decoder->in_psb)
2808 intel_pt_vm_tm_corr_psb(decoder, &data);
2811 err = intel_pt_get_next_packet(decoder);
2817 switch (decoder->packet.type) {
2819 decoder->pge = false;
2820 decoder->vm_tm_corr_continuous = false;
2826 decoder->pge = true;
2830 decoder->in_psb = false;
2831 pge = decoder->pge;
2832 decoder->pge = intel_pt_ovf_fup_lookahead(decoder);
2833 if (pge != decoder->pge)
2835 if (!decoder->pge)
2836 decoder->vm_tm_corr_continuous = false;
2840 if (decoder->in_psb)
2841 decoder->pge = true;
2845 decoder->pge = false;
2846 decoder->vm_tm_corr_continuous = false;
2847 decoder->have_tma = false;
2851 intel_pt_vm_tm_corr_psb(decoder, &data);
2855 decoder->pip_payload = decoder->packet.payload;
2859 intel_pt_calc_mtc_timestamp(decoder);
2863 intel_pt_vm_tm_corr_tsc(decoder, &data);
2864 intel_pt_calc_tsc_timestamp(decoder);
2865 decoder->vm_tm_corr_same_buf = true;
2866 decoder->vm_tm_corr_continuous = decoder->pge;
2870 intel_pt_calc_tma(decoder);
2874 intel_pt_calc_cyc_timestamp(decoder);
2878 intel_pt_calc_cbr(decoder);
2882 decoder->in_psb = false;
2887 if (decoder->packet.payload != NO_VMCS)
2888 decoder->vmcs = decoder->packet.payload;
2892 decoder->blk_type = decoder->packet.payload;
2896 if (decoder->blk_type == INTEL_PT_PEBS_BASIC &&
2897 decoder->packet.count == 2)
2898 intel_pt_vm_tm_corr_pebs_tsc(decoder);
2903 decoder->blk_type = 0;
2934 static int intel_pt_scan_for_psb(struct intel_pt_decoder *decoder);
2937 static int intel_pt_hop_trace(struct intel_pt_decoder *decoder, bool *no_tip, int *err)
2942 if (decoder->leap && !decoder->in_psb && decoder->packet.type != INTEL_PT_PSB) {
2943 *err = intel_pt_scan_for_psb(decoder);
2948 switch (decoder->packet.type) {
2953 decoder->pge = false;
2954 if (!decoder->packet.count) {
2955 intel_pt_set_nr(decoder);
2958 intel_pt_set_ip(decoder);
2959 decoder->state.type |= INTEL_PT_TRACE_END;
2960 decoder->state.from_ip = 0;
2961 decoder->state.to_ip = decoder->ip;
2962 intel_pt_update_nr(decoder);
2966 if (!decoder->packet.count) {
2967 intel_pt_set_nr(decoder);
2970 intel_pt_set_ip(decoder);
2971 decoder->state.type = INTEL_PT_INSTRUCTION;
2972 decoder->state.from_ip = decoder->ip;
2973 decoder->state.to_ip = 0;
2974 intel_pt_update_nr(decoder);
2975 intel_pt_sample_iflag_chg(decoder);
2979 if (!decoder->packet.count)
2981 intel_pt_set_ip(decoder);
2982 if (decoder->set_fup_mwait || decoder->set_fup_pwre)
2984 if (!decoder->branch_enable || !decoder->pge)
2987 decoder->state.type = INTEL_PT_INSTRUCTION;
2988 decoder->state.from_ip = decoder->ip;
2989 decoder->state.to_ip = 0;
2990 intel_pt_fup_event(decoder, *no_tip);
2993 intel_pt_fup_event(decoder, *no_tip);
2994 decoder->state.type |= INTEL_PT_INSTRUCTION | INTEL_PT_BRANCH;
2995 *err = intel_pt_walk_fup_tip(decoder);
2996 if (!*err && decoder->state.to_ip)
2997 decoder->pkt_state = INTEL_PT_STATE_RESAMPLE;
3001 decoder->state.psb_offset = decoder->pos;
3002 decoder->psb_ip = 0;
3003 decoder->last_ip = 0;
3004 decoder->have_last_ip = true;
3005 *err = intel_pt_walk_psbend(decoder);
3010 decoder->state.type = INTEL_PT_PSB_EVT;
3011 if (decoder->psb_ip) {
3012 decoder->state.type |= INTEL_PT_INSTRUCTION;
3013 decoder->ip = decoder->psb_ip;
3015 decoder->state.from_ip = decoder->psb_ip;
3016 decoder->state.to_ip = 0;
3142 static int intel_pt_psb(struct intel_pt_decoder *decoder)
3146 decoder->last_ip = 0;
3147 decoder->psb_ip = 0;
3148 decoder->have_last_ip = true;
3149 intel_pt_clear_stack(&decoder->stack);
3150 err = intel_pt_walk_psbend(decoder);
3153 decoder->state.type = INTEL_PT_PSB_EVT;
3154 decoder->state.from_ip = decoder->psb_ip;
3155 decoder->state.to_ip = 0;
3159 static int intel_pt_fup_in_psb(struct intel_pt_decoder *decoder)
3163 if (decoder->ip != decoder->last_ip) {
3164 err = intel_pt_walk_fup(decoder);
3169 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
3170 err = intel_pt_psb(decoder);
3172 decoder->pkt_state = INTEL_PT_STATE_ERR3;
3179 static bool intel_pt_psb_with_fup(struct intel_pt_decoder *decoder, int *err)
3183 if (!decoder->branch_enable)
3186 intel_pt_pkt_lookahead(decoder, intel_pt_psb_lookahead_cb, &data);
3190 decoder->packet = data.fup_packet;
3191 intel_pt_set_last_ip(decoder);
3192 decoder->pkt_state = INTEL_PT_STATE_FUP_IN_PSB;
3194 *err = intel_pt_fup_in_psb(decoder);
3199 static int intel_pt_walk_trace(struct intel_pt_decoder *decoder)
3206 err = intel_pt_get_next_packet(decoder);
3211 if (decoder->cyc_threshold) {
3212 if (decoder->sample_cyc && last_packet_type != INTEL_PT_CYC)
3213 decoder->sample_cyc = false;
3214 last_packet_type = decoder->packet.type;
3217 if (decoder->hop) {
3218 switch (intel_pt_hop_trace(decoder, &no_tip, &err)) {
3230 switch (decoder->packet.type) {
3232 if (!decoder->packet.count)
3234 decoder->tnt = decoder->packet;
3235 decoder->pkt_state = INTEL_PT_STATE_TNT;
3236 err = intel_pt_walk_tnt(decoder);
3242 if (decoder->packet.count != 0)
3243 intel_pt_set_last_ip(decoder);
3244 decoder->pkt_state = INTEL_PT_STATE_TIP_PGD;
3245 return intel_pt_walk_tip(decoder);
3248 decoder->pge = true;
3249 decoder->overflow = false;
3250 intel_pt_mtc_cyc_cnt_pge(decoder);
3251 intel_pt_set_nr(decoder);
3252 if (decoder->packet.count == 0) {
3254 decoder->pos);
3257 intel_pt_sample_iflag_chg(decoder);
3258 intel_pt_set_ip(decoder);
3259 decoder->state.from_ip = 0;
3260 decoder->state.to_ip = decoder->ip;
3261 decoder->state.type |= INTEL_PT_TRACE_BEGIN;
3266 if (decoder->hop)
3267 decoder->pkt_state = INTEL_PT_STATE_RESAMPLE;
3272 return intel_pt_overflow(decoder);
3275 if (decoder->packet.count != 0)
3276 intel_pt_set_last_ip(decoder);
3277 decoder->pkt_state = INTEL_PT_STATE_TIP;
3278 return intel_pt_walk_tip(decoder);
3281 if (decoder->packet.count == 0) {
3283 decoder->pos);
3287 intel_pt_set_last_ip(decoder);
3288 if (!decoder->branch_enable || !decoder->pge) {
3289 decoder->ip = decoder->last_ip;
3290 if (intel_pt_fup_event(decoder, no_tip))
3295 if (decoder->set_fup_mwait)
3298 decoder->pkt_state = INTEL_PT_STATE_FUP_NO_TIP;
3300 decoder->pkt_state = INTEL_PT_STATE_FUP;
3301 err = intel_pt_walk_fup(decoder);
3308 return intel_pt_walk_fup_tip(decoder);
3311 decoder->pge = false;
3312 decoder->continuous_period = false;
3313 intel_pt_clear_tx_flags(decoder);
3314 decoder->have_tma = false;
3318 decoder->state.psb_offset = decoder->pos;
3319 decoder->psb_ip = 0;
3320 if (intel_pt_psb_with_fup(decoder, &err))
3322 err = intel_pt_psb(decoder);
3328 intel_pt_update_pip(decoder);
3332 intel_pt_calc_mtc_timestamp(decoder);
3333 if (decoder->period_type != INTEL_PT_PERIOD_MTC)
3339 if (!decoder->mtc_insn)
3341 decoder->mtc_insn = false;
3343 if (!decoder->timestamp)
3345 decoder->state.type = INTEL_PT_INSTRUCTION;
3346 decoder->state.from_ip = decoder->ip;
3347 decoder->state.to_ip = 0;
3348 decoder->mtc_insn = false;
3352 intel_pt_calc_tsc_timestamp(decoder);
3356 intel_pt_calc_tma(decoder);
3360 intel_pt_calc_cyc_timestamp(decoder);
3364 intel_pt_calc_cbr(decoder);
3365 if (decoder->cbr != decoder->cbr_seen) {
3366 decoder->state.type = 0;
3372 intel_pt_mode_exec(decoder);
3373 err = intel_pt_get_next_packet(decoder);
3376 if (decoder->packet.type == INTEL_PT_FUP) {
3377 decoder->set_fup_mode_exec = true;
3384 if (!decoder->pge || decoder->in_psb) {
3385 intel_pt_update_in_tx(decoder);
3388 err = intel_pt_mode_tsx(decoder, &no_tip);
3394 return intel_pt_bug(decoder);
3403 decoder->fup_ptw_payload = decoder->packet.payload;
3404 err = intel_pt_get_next_packet(decoder);
3407 if (decoder->packet.type == INTEL_PT_FUP) {
3408 decoder->set_fup_ptw = true;
3412 decoder->pos);
3417 decoder->state.type = INTEL_PT_PTW;
3418 decoder->state.from_ip = decoder->ip;
3419 decoder->state.to_ip = 0;
3420 decoder->state.ptw_payload = decoder->packet.payload;
3424 decoder->fup_mwait_payload = decoder->packet.payload;
3425 decoder->set_fup_mwait = true;
3429 if (decoder->set_fup_mwait) {
3430 decoder->fup_pwre_payload =
3431 decoder->packet.payload;
3432 decoder->set_fup_pwre = true;
3435 decoder->state.type = INTEL_PT_PWR_ENTRY;
3436 decoder->state.from_ip = decoder->ip;
3437 decoder->state.to_ip = 0;
3438 decoder->state.pwrx_payload = decoder->packet.payload;
3442 err = intel_pt_get_next_packet(decoder);
3445 if (decoder->packet.type == INTEL_PT_FUP) {
3446 decoder->set_fup_exstop = true;
3450 decoder->pos);
3455 decoder->state.type = INTEL_PT_EX_STOP;
3456 decoder->state.from_ip = decoder->ip;
3457 decoder->state.to_ip = 0;
3461 decoder->state.type = INTEL_PT_PWR_EXIT;
3462 decoder->state.from_ip = decoder->ip;
3463 decoder->state.to_ip = 0;
3464 decoder->state.pwrx_payload = decoder->packet.payload;
3468 intel_pt_bbp(decoder);
3472 intel_pt_bip(decoder);
3476 decoder->state.type = INTEL_PT_BLK_ITEMS;
3477 decoder->state.from_ip = decoder->ip;
3478 decoder->state.to_ip = 0;
3482 err = intel_pt_get_next_packet(decoder);
3485 if (decoder->packet.type == INTEL_PT_FUP) {
3486 decoder->set_fup_bep = true;
3490 decoder->pos);
3495 decoder->fup_cfe_pkt = decoder->packet;
3496 decoder->set_fup_cfe = true;
3497 if (!decoder->pge) {
3498 intel_pt_fup_event(decoder, true);
3504 decoder->fup_cfe_pkt = decoder->packet;
3505 err = intel_pt_get_next_packet(decoder);
3508 if (decoder->packet.type == INTEL_PT_FUP) {
3509 decoder->set_fup_cfe_ip = true;
3513 decoder->pos);
3518 err = intel_pt_evd(decoder);
3524 return intel_pt_bug(decoder);
3529 static inline bool intel_pt_have_ip(struct intel_pt_decoder *decoder)
3531 return decoder->packet.count &&
3532 (decoder->have_last_ip || decoder->packet.count == 3 ||
3533 decoder->packet.count == 6);
3537 static int intel_pt_walk_psb(struct intel_pt_decoder *decoder)
3541 decoder->in_psb = true;
3544 err = intel_pt_get_next_packet(decoder);
3548 switch (decoder->packet.type) {
3550 decoder->continuous_period = false;
3573 decoder->pge = true;
3574 if (intel_pt_have_ip(decoder)) {
3575 uint64_t current_ip = decoder->ip;
3577 intel_pt_set_ip(decoder);
3578 decoder->psb_ip = decoder->ip;
3581 decoder->ip);
3586 intel_pt_calc_mtc_timestamp(decoder);
3590 intel_pt_calc_tsc_timestamp(decoder);
3594 intel_pt_calc_tma(decoder);
3598 intel_pt_calc_cyc_timestamp(decoder);
3602 intel_pt_calc_cbr(decoder);
3606 intel_pt_set_pip(decoder);
3610 intel_pt_mode_exec_status(decoder);
3614 intel_pt_update_in_tx(decoder);
3618 decoder->pge = false;
3619 decoder->continuous_period = false;
3620 intel_pt_clear_tx_flags(decoder);
3624 decoder->have_tma = false;
3626 if (decoder->ip)
3627 decoder->pkt_state = INTEL_PT_STATE_ERR4;
3629 decoder->pkt_state = INTEL_PT_STATE_ERR3;
3634 err = intel_pt_bug(decoder);
3638 err = intel_pt_overflow(decoder);
3654 decoder->in_psb = false;
3659 static int intel_pt_walk_to_ip(struct intel_pt_decoder *decoder)
3664 err = intel_pt_get_next_packet(decoder);
3668 switch (decoder->packet.type) {
3670 decoder->continuous_period = false;
3671 decoder->pge = false;
3672 if (intel_pt_have_ip(decoder))
3673 intel_pt_set_ip(decoder);
3674 if (!decoder->ip)
3676 decoder->state.type |= INTEL_PT_TRACE_END;
3680 decoder->pge = true;
3681 intel_pt_mtc_cyc_cnt_pge(decoder);
3682 if (intel_pt_have_ip(decoder))
3683 intel_pt_set_ip(decoder);
3684 if (!decoder->ip)
3686 decoder->state.type |= INTEL_PT_TRACE_BEGIN;
3690 decoder->pge = true;
3691 if (intel_pt_have_ip(decoder))
3692 intel_pt_set_ip(decoder);
3693 if (!decoder->ip)
3698 if (intel_pt_have_ip(decoder))
3699 intel_pt_set_ip(decoder);
3700 if (decoder->ip)
3705 intel_pt_calc_mtc_timestamp(decoder);
3709 intel_pt_calc_tsc_timestamp(decoder);
3713 intel_pt_calc_tma(decoder);
3717 intel_pt_calc_cyc_timestamp(decoder);
3721 intel_pt_calc_cbr(decoder);
3725 intel_pt_set_pip(decoder);
3729 intel_pt_mode_exec_status(decoder);
3733 intel_pt_update_in_tx(decoder);
3737 return intel_pt_overflow(decoder);
3740 return intel_pt_bug(decoder);
3743 decoder->pge = false;
3744 decoder->continuous_period = false;
3745 intel_pt_clear_tx_flags(decoder);
3746 decoder->have_tma = false;
3750 decoder->state.psb_offset = decoder->pos;
3751 decoder->psb_ip = 0;
3752 decoder->last_ip = 0;
3753 decoder->have_last_ip = true;
3754 intel_pt_clear_stack(&decoder->stack);
3755 err = intel_pt_walk_psb(decoder);
3758 decoder->state.type = INTEL_PT_PSB_EVT;
3759 decoder->state.from_ip = decoder->psb_ip;
3760 decoder->state.to_ip = 0;
3788 static int intel_pt_sync_ip(struct intel_pt_decoder *decoder)
3792 intel_pt_clear_fup_event(decoder);
3793 decoder->overflow = false;
3795 if (!decoder->branch_enable) {
3796 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
3797 decoder->state.type = 0; /* Do not have a sample */
3802 err = intel_pt_walk_to_ip(decoder);
3803 if (err || ((decoder->state.type & INTEL_PT_PSB_EVT) && !decoder->ip))
3807 if (decoder->hop)
3808 decoder->pkt_state = INTEL_PT_STATE_RESAMPLE;
3810 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
3812 decoder->state.from_ip = 0;
3813 decoder->state.to_ip = decoder->ip;
3814 intel_pt_log_to("Setting IP", decoder->ip);
3819 static int intel_pt_part_psb(struct intel_pt_decoder *decoder)
3821 const unsigned char *end = decoder->buf + decoder->len;
3825 if (i > decoder->len)
3833 static int intel_pt_rest_psb(struct intel_pt_decoder *decoder, int part_psb)
3838 if (rest_psb > decoder->len ||
3839 memcmp(decoder->buf, psb + part_psb, rest_psb))
3845 static int intel_pt_get_split_psb(struct intel_pt_decoder *decoder,
3850 decoder->pos += decoder->len;
3851 decoder->len = 0;
3853 ret = intel_pt_get_next_data(decoder, false);
3857 rest_psb = intel_pt_rest_psb(decoder, part_psb);
3861 decoder->pos -= part_psb;
3862 decoder->next_buf = decoder->buf + rest_psb;
3863 decoder->next_len = decoder->len - rest_psb;
3864 memcpy(decoder->temp_buf, INTEL_PT_PSB_STR, INTEL_PT_PSB_LEN);
3865 decoder->buf = decoder->temp_buf;
3866 decoder->len = INTEL_PT_PSB_LEN;
3871 static int intel_pt_scan_for_psb(struct intel_pt_decoder *decoder)
3878 if (!decoder->len) {
3879 ret = intel_pt_get_next_data(decoder, false);
3884 next = memmem(decoder->buf, decoder->len, INTEL_PT_PSB_STR,
3889 part_psb = intel_pt_part_psb(decoder);
3891 ret = intel_pt_get_split_psb(decoder, part_psb);
3895 decoder->pos += decoder->len;
3896 decoder->len = 0;
3901 decoder->pkt_step = next - decoder->buf;
3902 return intel_pt_get_next_packet(decoder);
3906 static int intel_pt_sync(struct intel_pt_decoder *decoder)
3910 decoder->pge = false;
3911 decoder->continuous_period = false;
3912 decoder->have_last_ip = false;
3913 decoder->last_ip = 0;
3914 decoder->psb_ip = 0;
3915 decoder->ip = 0;
3916 intel_pt_clear_stack(&decoder->stack);
3918 err = intel_pt_scan_for_psb(decoder);
3922 if (decoder->vm_time_correlation) {
3923 decoder->in_psb = true;
3924 if (!decoder->timestamp)
3925 decoder->timestamp = 1;
3926 decoder->state.type = 0;
3927 decoder->pkt_state = INTEL_PT_STATE_VM_TIME_CORRELATION;
3931 decoder->have_last_ip = true;
3932 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
3934 err = intel_pt_walk_psb(decoder);
3938 decoder->state.type = INTEL_PT_PSB_EVT; /* Only PSB sample */
3939 decoder->state.from_ip = decoder->psb_ip;
3940 decoder->state.to_ip = 0;
3942 if (decoder->ip) {
3947 if (decoder->hop)
3948 decoder->pkt_state = INTEL_PT_STATE_RESAMPLE;
3950 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
3956 static uint64_t intel_pt_est_timestamp(struct intel_pt_decoder *decoder)
3958 uint64_t est = decoder->sample_insn_cnt << 1;
3960 if (!decoder->cbr || !decoder->max_non_turbo_ratio)
3963 est *= decoder->max_non_turbo_ratio;
3964 est /= decoder->cbr;
3966 return decoder->sample_timestamp + est;
3969 const struct intel_pt_state *intel_pt_decode(struct intel_pt_decoder *decoder)
3974 decoder->state.type = INTEL_PT_BRANCH;
3975 decoder->state.flags = 0;
3977 switch (decoder->pkt_state) {
3979 err = intel_pt_sync(decoder);
3982 decoder->have_last_ip = false;
3983 decoder->last_ip = 0;
3984 decoder->ip = 0;
3987 err = intel_pt_sync_ip(decoder);
3990 err = intel_pt_walk_trace(decoder);
3994 err = intel_pt_walk_tnt(decoder);
3996 err = intel_pt_walk_trace(decoder);
4000 err = intel_pt_walk_tip(decoder);
4003 err = intel_pt_walk_fup(decoder);
4005 err = intel_pt_walk_fup_tip(decoder);
4008 err = intel_pt_walk_fup(decoder);
4010 err = intel_pt_walk_trace(decoder);
4013 err = intel_pt_fup_in_psb(decoder);
4016 err = intel_pt_resample(decoder);
4019 err = intel_pt_vm_time_correlation(decoder);
4022 err = intel_pt_bug(decoder);
4028 decoder->state.err = intel_pt_ext_err(err);
4030 decoder->state.from_ip = decoder->ip;
4031 intel_pt_update_sample_time(decoder);
4032 decoder->sample_tot_cyc_cnt = decoder->tot_cyc_cnt;
4033 intel_pt_set_nr(decoder);
4035 decoder->state.err = 0;
4036 if (decoder->cbr != decoder->cbr_seen) {
4037 decoder->cbr_seen = decoder->cbr;
4038 if (!decoder->state.type) {
4039 decoder->state.from_ip = decoder->ip;
4040 decoder->state.to_ip = 0;
4042 decoder->state.type |= INTEL_PT_CBR_CHG;
4043 decoder->state.cbr_payload = decoder->cbr_payload;
4044 decoder->state.cbr = decoder->cbr;
4046 if (intel_pt_sample_time(decoder->pkt_state)) {
4047 intel_pt_update_sample_time(decoder);
4048 if (decoder->sample_cyc) {
4049 decoder->sample_tot_cyc_cnt = decoder->tot_cyc_cnt;
4050 decoder->state.flags |= INTEL_PT_SAMPLE_IPC;
4051 decoder->sample_cyc = false;
4058 if (!decoder->have_cyc)
4059 decoder->state.flags |= INTEL_PT_SAMPLE_IPC;
4063 if ((decoder->state.type & INTEL_PT_PSB_EVT) && decoder->tsc_timestamp)
4064 decoder->sample_timestamp = decoder->tsc_timestamp;
4066 decoder->state.from_nr = decoder->nr;
4067 decoder->state.to_nr = decoder->next_nr;
4068 decoder->nr = decoder->next_nr;
4070 decoder->state.timestamp = decoder->sample_timestamp;
4071 decoder->state.est_timestamp = intel_pt_est_timestamp(decoder);
4072 decoder->state.tot_insn_cnt = decoder->tot_insn_cnt;
4073 decoder->state.tot_cyc_cnt = decoder->sample_tot_cyc_cnt;
4075 return &decoder->state;
4443 * intel_pt_fast_forward - reposition decoder forwards.
4444 * @decoder: Intel PT decoder
4447 * Reposition decoder at the last PSB with a timestamp earlier than @timestamp.
4451 int intel_pt_fast_forward(struct intel_pt_decoder *decoder, uint64_t timestamp)
4461 err = decoder->lookahead(decoder->data, intel_pt_ff_cb, &d);
4468 decoder->pos += decoder->len;
4469 decoder->len = 0;
4470 err = intel_pt_get_next_data(decoder, true);
4474 } while (decoder->buf_timestamp != d.buf_timestamp);
4477 if (!decoder->buf)
4480 buf = (unsigned char *)decoder->buf;
4481 len = decoder->len;
4496 tsc = intel_pt_8b_tsc(tsc, decoder->buf_timestamp);
4505 decoder->pos += decoder->len - len;
4506 decoder->buf = buf;
4507 decoder->len = len;
4508 intel_pt_reposition(decoder);