1 /* SPDX-License-Identifier: GPL-2.0 */
2 #undef TRACE_SYSTEM
3 #define TRACE_SYSTEM msr
4
5 #undef TRACE_INCLUDE_FILE
6 #define TRACE_INCLUDE_FILE msr-trace
7
8 #undef TRACE_INCLUDE_PATH
9 #define TRACE_INCLUDE_PATH asm/
10
11 #if !defined(_TRACE_MSR_H) || defined(TRACE_HEADER_MULTI_READ)
12 #define _TRACE_MSR_H
13
14 #include <linux/tracepoint.h>
15
16 /*
17 * Tracing for x86 model specific registers. Directly maps to the
18 * RDMSR/WRMSR instructions.
19 */
20
21 DECLARE_EVENT_CLASS(msr_trace_class,
22 TP_PROTO(unsigned msr, u64 val, int failed),
23 TP_ARGS(msr, val, failed),
24 TP_STRUCT__entry(
25 __field( unsigned, msr )
26 __field( u64, val )
27 __field( int, failed )
28 ),
29 TP_fast_assign(
30 __entry->msr = msr;
31 __entry->val = val;
32 __entry->failed = failed;
33 ),
34 TP_printk("%x, value %llx%s",
35 __entry->msr,
36 __entry->val,
37 __entry->failed ? " #GP" : "")
38 );
39
40 DEFINE_EVENT(msr_trace_class, read_msr,
41 TP_PROTO(unsigned msr, u64 val, int failed),
42 TP_ARGS(msr, val, failed)
43 );
44
45 DEFINE_EVENT(msr_trace_class, write_msr,
46 TP_PROTO(unsigned msr, u64 val, int failed),
47 TP_ARGS(msr, val, failed)
48 );
49
50 DEFINE_EVENT(msr_trace_class, rdpmc,
51 TP_PROTO(unsigned msr, u64 val, int failed),
52 TP_ARGS(msr, val, failed)
53 );
54
55 #endif /* _TRACE_MSR_H */
56
57 /* This part must be outside protection */
58 #include <trace/define_trace.h>
59
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