bool vm_tm_corr_continuous;
bool nr;
bool next_nr;
+ bool iflag;
+ bool next_iflag;
enum intel_pt_param_flags flags;
uint64_t pos;
uint64_t last_ip;
bool set_fup_bep;
bool set_fup_cfe_ip;
bool set_fup_cfe;
+ bool set_fup_mode_exec;
bool sample_cyc;
unsigned int fup_tx_flags;
unsigned int tx_flags;
decoder->state.type |= INTEL_PT_INSTRUCTION;
}
+/*
+ * Sample FUP instruction at the same time as reporting the FUP event, so the
+ * instruction sample gets the same flags as the FUP event.
+ */
+static void intel_pt_sample_fup_insn(struct intel_pt_decoder *decoder)
+{
+ struct intel_pt_insn intel_pt_insn;
+ uint64_t max_insn_cnt, insn_cnt = 0;
+ int err;
+
+ decoder->state.insn_op = INTEL_PT_OP_OTHER;
+ decoder->state.insn_len = 0;
+
+ if (!decoder->branch_enable || !decoder->pge || decoder->hop ||
+ decoder->ip != decoder->last_ip)
+ return;
+
+ if (!decoder->mtc_insn)
+ decoder->mtc_insn = true;
+
+ max_insn_cnt = intel_pt_next_sample(decoder);
+ if (max_insn_cnt != 1)
+ return;
+
+ err = decoder->walk_insn(&intel_pt_insn, &insn_cnt, &decoder->ip,
+ 0, max_insn_cnt, decoder->data);
+ /* Ignore error, it will be reported next walk anyway */
+ if (err)
+ return;
+
+ if (intel_pt_insn.branch != INTEL_PT_BR_NO_BRANCH) {
+ intel_pt_log_at("ERROR: Unexpected branch at FUP instruction", decoder->ip);
+ return;
+ }
+
+ decoder->tot_insn_cnt += insn_cnt;
+ decoder->timestamp_insn_cnt += insn_cnt;
+ decoder->sample_insn_cnt += insn_cnt;
+ decoder->period_insn_cnt += insn_cnt;
+
+ intel_pt_sample_insn(decoder);
+
+ decoder->state.type |= INTEL_PT_INSTRUCTION;
+ decoder->ip += intel_pt_insn.length;
+}
+
static int intel_pt_walk_insn(struct intel_pt_decoder *decoder,
struct intel_pt_insn *intel_pt_insn, uint64_t ip)
{
return err;
}
+static void intel_pt_mode_exec_status(struct intel_pt_decoder *decoder)
+{
+ bool iflag = decoder->packet.count & INTEL_PT_IFLAG;
+
+ decoder->exec_mode = decoder->packet.payload;
+ decoder->iflag = iflag;
+ decoder->next_iflag = iflag;
+ decoder->state.from_iflag = iflag;
+ decoder->state.to_iflag = iflag;
+}
+
+static void intel_pt_mode_exec(struct intel_pt_decoder *decoder)
+{
+ bool iflag = decoder->packet.count & INTEL_PT_IFLAG;
+
+ decoder->exec_mode = decoder->packet.payload;
+ decoder->next_iflag = iflag;
+}
+
+static void intel_pt_sample_iflag(struct intel_pt_decoder *decoder)
+{
+ decoder->state.type |= INTEL_PT_IFLAG_CHG;
+ decoder->state.from_iflag = decoder->iflag;
+ decoder->state.to_iflag = decoder->next_iflag;
+ decoder->iflag = decoder->next_iflag;
+}
+
+static void intel_pt_sample_iflag_chg(struct intel_pt_decoder *decoder)
+{
+ if (decoder->iflag != decoder->next_iflag)
+ intel_pt_sample_iflag(decoder);
+}
+
static void intel_pt_clear_fup_event(struct intel_pt_decoder *decoder)
{
decoder->set_fup_tx_flags = false;
decoder->set_fup_cfe_ip = false;
decoder->set_fup_cfe = false;
decoder->evd_cnt = 0;
+ decoder->set_fup_mode_exec = false;
+ decoder->iflag = decoder->next_iflag;
}
-static bool intel_pt_fup_event(struct intel_pt_decoder *decoder)
+static bool intel_pt_fup_event(struct intel_pt_decoder *decoder, bool no_tip)
{
enum intel_pt_sample_type type = decoder->state.type;
+ bool sample_fup_insn = false;
bool ret = false;
decoder->state.type &= ~INTEL_PT_BRANCH;
decoder->state.flags |= INTEL_PT_FUP_IP;
ret = true;
}
+ if (decoder->set_fup_mode_exec) {
+ decoder->set_fup_mode_exec = false;
+ intel_pt_sample_iflag(decoder);
+ sample_fup_insn = no_tip;
+ ret = true;
+ }
if (decoder->set_fup_tx_flags) {
decoder->set_fup_tx_flags = false;
decoder->tx_flags = decoder->fup_tx_flags;
if (ret) {
decoder->state.from_ip = decoder->ip;
decoder->state.to_ip = 0;
+ if (sample_fup_insn)
+ intel_pt_sample_fup_insn(decoder);
} else {
decoder->state.type = type;
}
bool no_tip = decoder->pkt_state != INTEL_PT_STATE_FUP;
decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
- if (intel_pt_fup_event(decoder) && no_tip)
+ if (intel_pt_fup_event(decoder, no_tip) && no_tip)
return 0;
return -EAGAIN;
}
return err;
intel_pt_update_nr(decoder);
+ intel_pt_sample_iflag_chg(decoder);
if (intel_pt_insn.branch == INTEL_PT_BR_INDIRECT) {
if (decoder->pkt_state == INTEL_PT_STATE_TIP_PGD) {
decoder->state.to_ip = decoder->last_ip;
decoder->ip = decoder->last_ip;
intel_pt_update_nr(decoder);
+ intel_pt_sample_iflag_chg(decoder);
return 0;
}
break;
case INTEL_PT_MODE_EXEC:
- decoder->exec_mode = decoder->packet.payload;
+ intel_pt_mode_exec_status(decoder);
break;
case INTEL_PT_PIP:
decoder->state.to_ip = decoder->ip;
}
intel_pt_update_nr(decoder);
+ intel_pt_sample_iflag_chg(decoder);
return 0;
case INTEL_PT_PIP:
break;
case INTEL_PT_MODE_EXEC:
- decoder->exec_mode = decoder->packet.payload;
+ intel_pt_mode_exec(decoder);
break;
case INTEL_PT_VMCS:
decoder->state.from_ip = decoder->ip;
decoder->state.to_ip = 0;
intel_pt_update_nr(decoder);
+ intel_pt_sample_iflag_chg(decoder);
return HOP_RETURN;
case INTEL_PT_FUP:
decoder->state.type = INTEL_PT_INSTRUCTION;
decoder->state.from_ip = decoder->ip;
decoder->state.to_ip = 0;
- intel_pt_fup_event(decoder);
+ intel_pt_fup_event(decoder, *no_tip);
return HOP_RETURN;
}
- intel_pt_fup_event(decoder);
+ intel_pt_fup_event(decoder, *no_tip);
decoder->state.type |= INTEL_PT_INSTRUCTION | INTEL_PT_BRANCH;
*err = intel_pt_walk_fup_tip(decoder);
if (!*err && decoder->state.to_ip)
decoder->pos);
break;
}
+ intel_pt_sample_iflag_chg(decoder);
intel_pt_set_ip(decoder);
decoder->state.from_ip = 0;
decoder->state.to_ip = decoder->ip;
intel_pt_set_last_ip(decoder);
if (!decoder->branch_enable || !decoder->pge) {
decoder->ip = decoder->last_ip;
- if (intel_pt_fup_event(decoder))
+ if (intel_pt_fup_event(decoder, no_tip))
return 0;
no_tip = false;
break;
break;
case INTEL_PT_MODE_EXEC:
- decoder->exec_mode = decoder->packet.payload;
- break;
+ intel_pt_mode_exec(decoder);
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+ if (decoder->packet.type == INTEL_PT_FUP) {
+ decoder->set_fup_mode_exec = true;
+ no_tip = true;
+ }
+ goto next;
case INTEL_PT_MODE_TSX:
/* MODE_TSX need not be followed by FUP */
decoder->fup_cfe_pkt = decoder->packet;
decoder->set_fup_cfe = true;
if (!decoder->pge) {
- intel_pt_fup_event(decoder);
+ intel_pt_fup_event(decoder, true);
return 0;
}
break;
break;
case INTEL_PT_MODE_EXEC:
- decoder->exec_mode = decoder->packet.payload;
+ intel_pt_mode_exec_status(decoder);
break;
case INTEL_PT_MODE_TSX:
break;
case INTEL_PT_MODE_EXEC:
- decoder->exec_mode = decoder->packet.payload;
+ intel_pt_mode_exec_status(decoder);
break;
case INTEL_PT_MODE_TSX: