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	INTEL_PT_BBP,
54	INTEL_PT_BIP,
55	INTEL_PT_BEP,
56	INTEL_PT_BEP_IP,
 
 
 
57};
58
59struct intel_pt_pkt {
60	enum intel_pt_pkt_type	type;
61	int			count;
62	uint64_t		payload;
63};
64
65/*
66 * Decoding of BIP packets conflicts with single-byte TNT packets. Since BIP
67 * packets only occur in the context of a block (i.e. between BBP and BEP), that
68 * context must be recorded and passed to the packet decoder.
69 */
70enum intel_pt_pkt_ctx {
71	INTEL_PT_NO_CTX,	/* BIP packets are invalid */
72	INTEL_PT_BLK_4_CTX,	/* 4-byte BIP packets */
73	INTEL_PT_BLK_8_CTX,	/* 8-byte BIP packets */
74};
75
76const char *intel_pt_pkt_name(enum intel_pt_pkt_type);
77
78int intel_pt_get_packet(const unsigned char *buf, size_t len,
79			struct intel_pt_pkt *packet,
80			enum intel_pt_pkt_ctx *ctx);
81
82void intel_pt_upd_pkt_ctx(const struct intel_pt_pkt *packet,
83			  enum intel_pt_pkt_ctx *ctx);
84
85int intel_pt_pkt_desc(const struct intel_pt_pkt *packet, char *buf, size_t len);
86
87#endif

 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
24#define INTEL_PT_VMX_NR_FLAG		1
25
26enum intel_pt_pkt_type {
27	INTEL_PT_BAD,
28	INTEL_PT_PAD,
29	INTEL_PT_TNT,
30	INTEL_PT_TIP_PGD,
31	INTEL_PT_TIP_PGE,
32	INTEL_PT_TSC,
33	INTEL_PT_TMA,
34	INTEL_PT_MODE_EXEC,
35	INTEL_PT_MODE_TSX,
36	INTEL_PT_MTC,
37	INTEL_PT_TIP,
38	INTEL_PT_FUP,
39	INTEL_PT_CYC,
40	INTEL_PT_VMCS,
41	INTEL_PT_PSB,
42	INTEL_PT_PSBEND,
43	INTEL_PT_CBR,
44	INTEL_PT_TRACESTOP,
45	INTEL_PT_PIP,
46	INTEL_PT_OVF,
47	INTEL_PT_MNT,
48	INTEL_PT_PTWRITE,
49	INTEL_PT_PTWRITE_IP,
50	INTEL_PT_EXSTOP,
51	INTEL_PT_EXSTOP_IP,
52	INTEL_PT_MWAIT,
53	INTEL_PT_PWRE,
54	INTEL_PT_PWRX,
55	INTEL_PT_BBP,
56	INTEL_PT_BIP,
57	INTEL_PT_BEP,
58	INTEL_PT_BEP_IP,
59	INTEL_PT_CFE,
60	INTEL_PT_CFE_IP,
61	INTEL_PT_EVD,
62};
63
64struct intel_pt_pkt {
65	enum intel_pt_pkt_type	type;
66	int			count;
67	uint64_t		payload;
68};
69
70/*
71 * Decoding of BIP packets conflicts with single-byte TNT packets. Since BIP
72 * packets only occur in the context of a block (i.e. between BBP and BEP), that
73 * context must be recorded and passed to the packet decoder.
74 */
75enum intel_pt_pkt_ctx {
76	INTEL_PT_NO_CTX,	/* BIP packets are invalid */
77	INTEL_PT_BLK_4_CTX,	/* 4-byte BIP packets */
78	INTEL_PT_BLK_8_CTX,	/* 8-byte BIP packets */
79};
80
81const char *intel_pt_pkt_name(enum intel_pt_pkt_type);
82
83int intel_pt_get_packet(const unsigned char *buf, size_t len,
84			struct intel_pt_pkt *packet,
85			enum intel_pt_pkt_ctx *ctx);
86
87void intel_pt_upd_pkt_ctx(const struct intel_pt_pkt *packet,
88			  enum intel_pt_pkt_ctx *ctx);
89
90int intel_pt_pkt_desc(const struct intel_pt_pkt *packet, char *buf, size_t len);
91
92#endif