perf tools: Add new Intel PT packet definitions

New features have been added to Intel PT which include a number of new
packet definitions.

This patch adds packet definitions for new packets: TMA, MTC, CYC, VMCS,
TRACESTOP and MNT.  Also another bit in PIP is defined.

This patch only adds support for the definitions. Later patches add
support for decoding TMA, MTC, CYC and TRACESTOP which is where those
packets are explained.

VMCS and the newly defined bit in PIP are used with virtualization which
is not supported yet.  MNT is a maintenance packet which the decoder
should ignore.

For details, refer to the June 2015 or later Intel 64 and IA-32
Architectures SDM Chapter 36 Intel Processor Trace.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1437150840-31811-19-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 65 insertions, 5 deletions

diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
index 56790ea1e88e..4a0e9fb1d173 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -923,6 +923,7 @@ static int intel_pt_walk_psbend(struct intel_pt_decoder *decoder)
 		case INTEL_PT_TIP_PGE:
 		case INTEL_PT_TIP:
 		case INTEL_PT_TNT:
+		case INTEL_PT_TRACESTOP:
 		case INTEL_PT_BAD:
 		case INTEL_PT_PSB:
 			intel_pt_log("ERROR: Unexpected packet\n");
@@ -935,6 +936,9 @@ static int intel_pt_walk_psbend(struct intel_pt_decoder *decoder)
 			intel_pt_calc_tsc_timestamp(decoder);
 			break;
 
+		case INTEL_PT_TMA:
+			break;
+
 		case INTEL_PT_CBR:
 			decoder->cbr = decoder->packet.payload;
 			break;
@@ -944,7 +948,7 @@ static int intel_pt_walk_psbend(struct intel_pt_decoder *decoder)
 			break;
 
 		case INTEL_PT_PIP:
-			decoder->cr3 = decoder->packet.payload;
+			decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
 			break;
 
 		case INTEL_PT_FUP:
@@ -956,6 +960,12 @@ static int intel_pt_walk_psbend(struct intel_pt_decoder *decoder)
 			intel_pt_update_in_tx(decoder);
 			break;
 
+		case INTEL_PT_MTC:
+			break;
+
+		case INTEL_PT_CYC:
+		case INTEL_PT_VMCS:
+		case INTEL_PT_MNT:
 		case INTEL_PT_PAD:
 		default:
 			break;
@@ -983,8 +993,10 @@ static int intel_pt_walk_fup_tip(struct intel_pt_decoder *decoder)
 		switch (decoder->packet.type) {
 		case INTEL_PT_TNT:
 		case INTEL_PT_FUP:
+		case INTEL_PT_TRACESTOP:
 		case INTEL_PT_PSB:
 		case INTEL_PT_TSC:
+		case INTEL_PT_TMA:
 		case INTEL_PT_CBR:
 		case INTEL_PT_MODE_TSX:
 		case INTEL_PT_BAD:
@@ -1032,13 +1044,21 @@ static int intel_pt_walk_fup_tip(struct intel_pt_decoder *decoder)
 			return 0;
 
 		case INTEL_PT_PIP:
-			decoder->cr3 = decoder->packet.payload;
+			decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
+			break;
+
+		case INTEL_PT_MTC:
+			break;
+
+		case INTEL_PT_CYC:
 			break;
 
 		case INTEL_PT_MODE_EXEC:
 			decoder->exec_mode = decoder->packet.payload;
 			break;
 
+		case INTEL_PT_VMCS:
+		case INTEL_PT_MNT:
 		case INTEL_PT_PAD:
 			break;
 
@@ -1122,6 +1142,9 @@ next:
 			}
 			return intel_pt_walk_fup_tip(decoder);
 
+		case INTEL_PT_TRACESTOP:
+			break;
+
 		case INTEL_PT_PSB:
 			intel_pt_clear_stack(&decoder->stack);
 			err = intel_pt_walk_psbend(decoder);
@@ -1132,13 +1155,22 @@ next:
 			break;
 
 		case INTEL_PT_PIP:
-			decoder->cr3 = decoder->packet.payload;
+			decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
+			break;
+
+		case INTEL_PT_MTC:
 			break;
 
 		case INTEL_PT_TSC:
 			intel_pt_calc_tsc_timestamp(decoder);
 			break;
 
+		case INTEL_PT_TMA:
+			break;
+
+		case INTEL_PT_CYC:
+			break;
+
 		case INTEL_PT_CBR:
 			decoder->cbr = decoder->packet.payload;
 			break;
@@ -1162,6 +1194,8 @@ next:
 			return intel_pt_bug(decoder);
 
 		case INTEL_PT_PSBEND:
+		case INTEL_PT_VMCS:
+		case INTEL_PT_MNT:
 		case INTEL_PT_PAD:
 			break;
 
@@ -1202,16 +1236,25 @@ static int intel_pt_walk_psb(struct intel_pt_decoder *decoder)
 			}
 			break;
 
+		case INTEL_PT_MTC:
+			break;
+
 		case INTEL_PT_TSC:
 			intel_pt_calc_tsc_timestamp(decoder);
 			break;
 
+		case INTEL_PT_TMA:
+			break;
+
+		case INTEL_PT_CYC:
+			break;
+
 		case INTEL_PT_CBR:
 			decoder->cbr = decoder->packet.payload;
 			break;
 
 		case INTEL_PT_PIP:
-			decoder->cr3 = decoder->packet.payload;
+			decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
 			break;
 
 		case INTEL_PT_MODE_EXEC:
@@ -1222,6 +1265,7 @@ static int intel_pt_walk_psb(struct intel_pt_decoder *decoder)
 			intel_pt_update_in_tx(decoder);
 			break;
 
+		case INTEL_PT_TRACESTOP:
 		case INTEL_PT_TNT:
 			intel_pt_log("ERROR: Unexpected packet\n");
 			if (decoder->ip)
@@ -1240,6 +1284,8 @@ static int intel_pt_walk_psb(struct intel_pt_decoder *decoder)
 			return 0;
 
 		case INTEL_PT_PSB:
+		case INTEL_PT_VMCS:
+		case INTEL_PT_MNT:
 		case INTEL_PT_PAD:
 		default:
 			break;
@@ -1282,16 +1328,25 @@ static int intel_pt_walk_to_ip(struct intel_pt_decoder *decoder)
 				intel_pt_set_last_ip(decoder);
 			break;
 
+		case INTEL_PT_MTC:
+			break;
+
 		case INTEL_PT_TSC:
 			intel_pt_calc_tsc_timestamp(decoder);
 			break;
 
+		case INTEL_PT_TMA:
+			break;
+
+		case INTEL_PT_CYC:
+			break;
+
 		case INTEL_PT_CBR:
 			decoder->cbr = decoder->packet.payload;
 			break;
 
 		case INTEL_PT_PIP:
-			decoder->cr3 = decoder->packet.payload;
+			decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
 			break;
 
 		case INTEL_PT_MODE_EXEC:
@@ -1308,6 +1363,9 @@ static int intel_pt_walk_to_ip(struct intel_pt_decoder *decoder)
 		case INTEL_PT_BAD: /* Does not happen */
 			return intel_pt_bug(decoder);
 
+		case INTEL_PT_TRACESTOP:
+			break;
+
 		case INTEL_PT_PSB:
 			err = intel_pt_walk_psb(decoder);
 			if (err)
@@ -1321,6 +1379,8 @@ static int intel_pt_walk_to_ip(struct intel_pt_decoder *decoder)
 
 		case INTEL_PT_TNT:
 		case INTEL_PT_PSBEND:
+		case INTEL_PT_VMCS:
+		case INTEL_PT_MNT:
 		case INTEL_PT_PAD:
 		default:
 			break;