xref: /openbmc/linux/arch/x86/include/asm/msr-trace.h (revision b2441318)
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