arch/x86/include/asm/msr-trace.h

   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>