1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * intel_pt_insn_decoder.h: Intel Processor Trace support
 4 * Copyright (c) 2013-2014, Intel Corporation.
 5 */
 6
 7#ifndef INCLUDE__INTEL_PT_INSN_DECODER_H__
 8#define INCLUDE__INTEL_PT_INSN_DECODER_H__
 9
10#include <stddef.h>
11#include <stdint.h>
12
13#define INTEL_PT_INSN_DESC_MAX		32
14#define INTEL_PT_INSN_BUF_SZ		16
15
16enum intel_pt_insn_op {
17	INTEL_PT_OP_OTHER,
18	INTEL_PT_OP_CALL,
19	INTEL_PT_OP_RET,
20	INTEL_PT_OP_JCC,
21	INTEL_PT_OP_JMP,
22	INTEL_PT_OP_LOOP,
23	INTEL_PT_OP_IRET,
24	INTEL_PT_OP_INT,
25	INTEL_PT_OP_SYSCALL,
26	INTEL_PT_OP_SYSRET,
27	INTEL_PT_OP_VMENTRY,
28	INTEL_PT_OP_ERETS,
29	INTEL_PT_OP_ERETU,
30};
31
32enum intel_pt_insn_branch {
33	INTEL_PT_BR_NO_BRANCH,
34	INTEL_PT_BR_INDIRECT,
35	INTEL_PT_BR_CONDITIONAL,
36	INTEL_PT_BR_UNCONDITIONAL,
37};
38
39struct intel_pt_insn {
40	enum intel_pt_insn_op		op;
41	enum intel_pt_insn_branch	branch;
42	bool				emulated_ptwrite;
43	int				length;
44	int32_t				rel;
45	unsigned char			buf[INTEL_PT_INSN_BUF_SZ];
46};
47
48int intel_pt_get_insn(const unsigned char *buf, size_t len, int x86_64,
49		      struct intel_pt_insn *intel_pt_insn);
50
51const char *intel_pt_insn_name(enum intel_pt_insn_op op);
52
53int intel_pt_insn_desc(const struct intel_pt_insn *intel_pt_insn, char *buf,
54		       size_t buf_len);
55
56int intel_pt_insn_type(enum intel_pt_insn_op op);
57
58#endif