arch/mips/kvm/trace.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 2012  MIPS Technologies, Inc.  All rights reserved.
   7  * Authors: Sanjay Lal <sanjayl@kymasys.com>
   8  */
   9
  10 #if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
  11 #define _TRACE_KVM_H
  12
  13 #include <linux/tracepoint.h>
  14
  15 #undef TRACE_SYSTEM
  16 #define TRACE_SYSTEM kvm
  17 #define TRACE_INCLUDE_PATH .
  18 #define TRACE_INCLUDE_FILE trace
  19
  20 /* The first 32 exit reasons correspond to Cause.ExcCode */
  21 #define KVM_TRACE_EXIT_INT               0
  22 #define KVM_TRACE_EXIT_TLBMOD            1
  23 #define KVM_TRACE_EXIT_TLBMISS_LD        2
  24 #define KVM_TRACE_EXIT_TLBMISS_ST        3
  25 #define KVM_TRACE_EXIT_ADDRERR_LD        4
  26 #define KVM_TRACE_EXIT_ADDRERR_ST        5
  27 #define KVM_TRACE_EXIT_SYSCALL           8
  28 #define KVM_TRACE_EXIT_BREAK_INST        9
  29 #define KVM_TRACE_EXIT_RESVD_INST       10
  30 #define KVM_TRACE_EXIT_COP_UNUSABLE     11
  31 #define KVM_TRACE_EXIT_TRAP_INST        13
  32 #define KVM_TRACE_EXIT_MSA_FPE          14
  33 #define KVM_TRACE_EXIT_FPE              15
  34 #define KVM_TRACE_EXIT_MSA_DISABLED     21
  35 /* Further exit reasons */
  36 #define KVM_TRACE_EXIT_WAIT             32
  37 #define KVM_TRACE_EXIT_CACHE            33
  38 #define KVM_TRACE_EXIT_SIGNAL           34
  39
  40 /* Tracepoints for VM exits */
  41 #define kvm_trace_symbol_exit_types                             \
  42         { KVM_TRACE_EXIT_INT,           "Interrupt" },          \
  43         { KVM_TRACE_EXIT_TLBMOD,        "TLB Mod" },            \
  44         { KVM_TRACE_EXIT_TLBMISS_LD,    "TLB Miss (LD)" },      \
  45         { KVM_TRACE_EXIT_TLBMISS_ST,    "TLB Miss (ST)" },      \
  46         { KVM_TRACE_EXIT_ADDRERR_LD,    "Address Error (LD)" }, \
  47         { KVM_TRACE_EXIT_ADDRERR_ST,    "Address Err (ST)" },   \
  48         { KVM_TRACE_EXIT_SYSCALL,       "System Call" },        \
  49         { KVM_TRACE_EXIT_BREAK_INST,    "Break Inst" },         \
  50         { KVM_TRACE_EXIT_RESVD_INST,    "Reserved Inst" },      \
  51         { KVM_TRACE_EXIT_COP_UNUSABLE,  "COP0/1 Unusable" },    \
  52         { KVM_TRACE_EXIT_TRAP_INST,     "Trap Inst" },          \
  53         { KVM_TRACE_EXIT_MSA_FPE,       "MSA FPE" },            \
  54         { KVM_TRACE_EXIT_FPE,           "FPE" },                \
  55         { KVM_TRACE_EXIT_MSA_DISABLED,  "MSA Disabled" },       \
  56         { KVM_TRACE_EXIT_WAIT,          "WAIT" },               \
  57         { KVM_TRACE_EXIT_CACHE,         "CACHE" },              \
  58         { KVM_TRACE_EXIT_SIGNAL,        "Signal" }
  59
  60 TRACE_EVENT(kvm_exit,
  61             TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason),
  62             TP_ARGS(vcpu, reason),
  63             TP_STRUCT__entry(
  64                         __field(unsigned long, pc)
  65                         __field(unsigned int, reason)
  66             ),
  67
  68             TP_fast_assign(
  69                         __entry->pc = vcpu->arch.pc;
  70                         __entry->reason = reason;
  71             ),
  72
  73             TP_printk("[%s]PC: 0x%08lx",
  74                       __print_symbolic(__entry->reason,
  75                                        kvm_trace_symbol_exit_types),
  76                       __entry->pc)
  77 );
  78
  79 #define KVM_TRACE_AUX_RESTORE           0
  80 #define KVM_TRACE_AUX_SAVE              1
  81 #define KVM_TRACE_AUX_ENABLE            2
  82 #define KVM_TRACE_AUX_DISABLE           3
  83 #define KVM_TRACE_AUX_DISCARD           4
  84
  85 #define KVM_TRACE_AUX_FPU               1
  86 #define KVM_TRACE_AUX_MSA               2
  87 #define KVM_TRACE_AUX_FPU_MSA           3
  88
  89 #define kvm_trace_symbol_aux_op         \
  90         { KVM_TRACE_AUX_RESTORE, "restore" },   \
  91         { KVM_TRACE_AUX_SAVE,    "save" },      \
  92         { KVM_TRACE_AUX_ENABLE,  "enable" },    \
  93         { KVM_TRACE_AUX_DISABLE, "disable" },   \
  94         { KVM_TRACE_AUX_DISCARD, "discard" }
  95
  96 #define kvm_trace_symbol_aux_state              \
  97         { KVM_TRACE_AUX_FPU,     "FPU" },       \
  98         { KVM_TRACE_AUX_MSA,     "MSA" },       \
  99         { KVM_TRACE_AUX_FPU_MSA, "FPU & MSA" }
 100
 101 TRACE_EVENT(kvm_aux,
 102             TP_PROTO(struct kvm_vcpu *vcpu, unsigned int op,
 103                      unsigned int state),
 104             TP_ARGS(vcpu, op, state),
 105             TP_STRUCT__entry(
 106                         __field(unsigned long, pc)
 107                         __field(u8, op)
 108                         __field(u8, state)
 109             ),
 110
 111             TP_fast_assign(
 112                         __entry->pc = vcpu->arch.pc;
 113                         __entry->op = op;
 114                         __entry->state = state;
 115             ),
 116
 117             TP_printk("%s %s PC: 0x%08lx",
 118                       __print_symbolic(__entry->op,
 119                                        kvm_trace_symbol_aux_op),
 120                       __print_symbolic(__entry->state,
 121                                        kvm_trace_symbol_aux_state),
 122                       __entry->pc)
 123 );
 124
 125 TRACE_EVENT(kvm_asid_change,
 126             TP_PROTO(struct kvm_vcpu *vcpu, unsigned int old_asid,
 127                      unsigned int new_asid),
 128             TP_ARGS(vcpu, old_asid, new_asid),
 129             TP_STRUCT__entry(
 130                         __field(unsigned long, pc)
 131                         __field(u8, old_asid)
 132                         __field(u8, new_asid)
 133             ),
 134
 135             TP_fast_assign(
 136                         __entry->pc = vcpu->arch.pc;
 137                         __entry->old_asid = old_asid;
 138                         __entry->new_asid = new_asid;
 139             ),
 140
 141             TP_printk("PC: 0x%08lx old: 0x%02x new: 0x%02x",
 142                       __entry->pc,
 143                       __entry->old_asid,
 144                       __entry->new_asid)
 145 );
 146
 147 #endif /* _TRACE_KVM_H */
 148
 149 /* This part must be outside protection */
 150 #include <trace/define_trace.h>