arch/x86/include/asm/trace/mpx.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM mpx
   3
   4 #if !defined(_TRACE_MPX_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define _TRACE_MPX_H
   6
   7 #include <linux/tracepoint.h>
   8
   9 #ifdef CONFIG_X86_INTEL_MPX
  10
  11 TRACE_EVENT(mpx_bounds_register_exception,
  12
  13         TP_PROTO(void *addr_referenced,
  14                  const struct mpx_bndreg *bndreg),
  15         TP_ARGS(addr_referenced, bndreg),
  16
  17         TP_STRUCT__entry(
  18                 __field(void *, addr_referenced)
  19                 __field(u64, lower_bound)
  20                 __field(u64, upper_bound)
  21         ),
  22
  23         TP_fast_assign(
  24                 __entry->addr_referenced = addr_referenced;
  25                 __entry->lower_bound = bndreg->lower_bound;
  26                 __entry->upper_bound = bndreg->upper_bound;
  27         ),
  28         /*
  29          * Note that we are printing out the '~' of the upper
  30          * bounds register here.  It is actually stored in its
  31          * one's complement form so that its 'init' state
  32          * corresponds to all 0's.  But, that looks like
  33          * gibberish when printed out, so print out the 1's
  34          * complement instead of the actual value here.  Note
  35          * though that you still need to specify filters for the
  36          * actual value, not the displayed one.
  37          */
  38         TP_printk("address referenced: 0x%p bounds: lower: 0x%llx ~upper: 0x%llx",
  39                 __entry->addr_referenced,
  40                 __entry->lower_bound,
  41                 ~__entry->upper_bound
  42         )
  43 );
  44
  45 TRACE_EVENT(bounds_exception_mpx,
  46
  47         TP_PROTO(const struct mpx_bndcsr *bndcsr),
  48         TP_ARGS(bndcsr),
  49
  50         TP_STRUCT__entry(
  51                 __field(u64, bndcfgu)
  52                 __field(u64, bndstatus)
  53         ),
  54
  55         TP_fast_assign(
  56                 /* need to get rid of the 'const' on bndcsr */
  57                 __entry->bndcfgu   = (u64)bndcsr->bndcfgu;
  58                 __entry->bndstatus = (u64)bndcsr->bndstatus;
  59         ),
  60
  61         TP_printk("bndcfgu:0x%llx bndstatus:0x%llx",
  62                 __entry->bndcfgu,
  63                 __entry->bndstatus)
  64 );
  65
  66 DECLARE_EVENT_CLASS(mpx_range_trace,
  67
  68         TP_PROTO(unsigned long start,
  69                  unsigned long end),
  70         TP_ARGS(start, end),
  71
  72         TP_STRUCT__entry(
  73                 __field(unsigned long, start)
  74                 __field(unsigned long, end)
  75         ),
  76
  77         TP_fast_assign(
  78                 __entry->start = start;
  79                 __entry->end   = end;
  80         ),
  81
  82         TP_printk("[0x%p:0x%p]",
  83                 (void *)__entry->start,
  84                 (void *)__entry->end
  85         )
  86 );
  87
  88 DEFINE_EVENT(mpx_range_trace, mpx_unmap_zap,
  89         TP_PROTO(unsigned long start, unsigned long end),
  90         TP_ARGS(start, end)
  91 );
  92
  93 DEFINE_EVENT(mpx_range_trace, mpx_unmap_search,
  94         TP_PROTO(unsigned long start, unsigned long end),
  95         TP_ARGS(start, end)
  96 );
  97
  98 TRACE_EVENT(mpx_new_bounds_table,
  99
 100         TP_PROTO(unsigned long table_vaddr),
 101         TP_ARGS(table_vaddr),
 102
 103         TP_STRUCT__entry(
 104                 __field(unsigned long, table_vaddr)
 105         ),
 106
 107         TP_fast_assign(
 108                 __entry->table_vaddr = table_vaddr;
 109         ),
 110
 111         TP_printk("table vaddr:%p", (void *)__entry->table_vaddr)
 112 );
 113
 114 #else
 115
 116 /*
 117  * This gets used outside of MPX-specific code, so we need a stub.
 118  */
 119 static inline
 120 void trace_bounds_exception_mpx(const struct mpx_bndcsr *bndcsr)
 121 {
 122 }
 123
 124 #endif /* CONFIG_X86_INTEL_MPX */
 125
 126 #undef TRACE_INCLUDE_PATH
 127 #define TRACE_INCLUDE_PATH asm/trace/
 128 #undef TRACE_INCLUDE_FILE
 129 #define TRACE_INCLUDE_FILE mpx
 130 #endif /* _TRACE_MPX_H */
 131
 132 /* This part must be outside protection */
 133 #include <trace/define_trace.h>