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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * intel_pt_pkt_decoder.h: Intel Processor Trace support
4 * Copyright (c) 2013-2014, Intel Corporation.
5 */
6
7#ifndef INCLUDE__INTEL_PT_PKT_DECODER_H__
8#define INCLUDE__INTEL_PT_PKT_DECODER_H__
9
10#include <stddef.h>
11#include <stdint.h>
12
13#define INTEL_PT_PKT_DESC_MAX 256
14
15#define INTEL_PT_NEED_MORE_BYTES -1
16#define INTEL_PT_BAD_PACKET -2
17
18#define INTEL_PT_PSB_STR "\002\202\002\202\002\202\002\202" \
19 "\002\202\002\202\002\202\002\202"
20#define INTEL_PT_PSB_LEN 16
21
22#define INTEL_PT_PKT_MAX_SZ 16
23
24enum intel_pt_pkt_type {
25 INTEL_PT_BAD,
26 INTEL_PT_PAD,
27 INTEL_PT_TNT,
28 INTEL_PT_TIP_PGD,
29 INTEL_PT_TIP_PGE,
30 INTEL_PT_TSC,
31 INTEL_PT_TMA,
32 INTEL_PT_MODE_EXEC,
33 INTEL_PT_MODE_TSX,
34 INTEL_PT_MTC,
35 INTEL_PT_TIP,
36 INTEL_PT_FUP,
37 INTEL_PT_CYC,
38 INTEL_PT_VMCS,
39 INTEL_PT_PSB,
40 INTEL_PT_PSBEND,
41 INTEL_PT_CBR,
42 INTEL_PT_TRACESTOP,
43 INTEL_PT_PIP,
44 INTEL_PT_OVF,
45 INTEL_PT_MNT,
46 INTEL_PT_PTWRITE,
47 INTEL_PT_PTWRITE_IP,
48 INTEL_PT_EXSTOP,
49 INTEL_PT_EXSTOP_IP,
50 INTEL_PT_MWAIT,
51 INTEL_PT_PWRE,
52 INTEL_PT_PWRX,
53};
54
55struct intel_pt_pkt {
56 enum intel_pt_pkt_type type;
57 int count;
58 uint64_t payload;
59};
60
61const char *intel_pt_pkt_name(enum intel_pt_pkt_type);
62
63int intel_pt_get_packet(const unsigned char *buf, size_t len,
64 struct intel_pt_pkt *packet);
65
66int intel_pt_pkt_desc(const struct intel_pt_pkt *packet, char *buf, size_t len);
67
68#endif