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 /*
  21  * Tracepoints for VM enters
  22  */
  23 DECLARE_EVENT_CLASS(kvm_transition,
  24         TP_PROTO(struct kvm_vcpu *vcpu),
  25         TP_ARGS(vcpu),
  26         TP_STRUCT__entry(
  27                 __field(unsigned long, pc)
  28         ),
  29
  30         TP_fast_assign(
  31                 __entry->pc = vcpu->arch.pc;
  32         ),
  33
  34         TP_printk("PC: 0x%08lx",
  35                   __entry->pc)
  36 );
  37
  38 DEFINE_EVENT(kvm_transition, kvm_enter,
  39              TP_PROTO(struct kvm_vcpu *vcpu),
  40              TP_ARGS(vcpu));
  41
  42 DEFINE_EVENT(kvm_transition, kvm_reenter,
  43              TP_PROTO(struct kvm_vcpu *vcpu),
  44              TP_ARGS(vcpu));
  45
  46 DEFINE_EVENT(kvm_transition, kvm_out,
  47              TP_PROTO(struct kvm_vcpu *vcpu),
  48              TP_ARGS(vcpu));
  49
  50 /* The first 32 exit reasons correspond to Cause.ExcCode */
  51 #define KVM_TRACE_EXIT_INT               0
  52 #define KVM_TRACE_EXIT_TLBMOD            1
  53 #define KVM_TRACE_EXIT_TLBMISS_LD        2
  54 #define KVM_TRACE_EXIT_TLBMISS_ST        3
  55 #define KVM_TRACE_EXIT_ADDRERR_LD        4
  56 #define KVM_TRACE_EXIT_ADDRERR_ST        5
  57 #define KVM_TRACE_EXIT_SYSCALL           8
  58 #define KVM_TRACE_EXIT_BREAK_INST        9
  59 #define KVM_TRACE_EXIT_RESVD_INST       10
  60 #define KVM_TRACE_EXIT_COP_UNUSABLE     11
  61 #define KVM_TRACE_EXIT_TRAP_INST        13
  62 #define KVM_TRACE_EXIT_MSA_FPE          14
  63 #define KVM_TRACE_EXIT_FPE              15
  64 #define KVM_TRACE_EXIT_MSA_DISABLED     21
  65 /* Further exit reasons */
  66 #define KVM_TRACE_EXIT_WAIT             32
  67 #define KVM_TRACE_EXIT_CACHE            33
  68 #define KVM_TRACE_EXIT_SIGNAL           34
  69
  70 /* Tracepoints for VM exits */
  71 #define kvm_trace_symbol_exit_types                             \
  72         { KVM_TRACE_EXIT_INT,           "Interrupt" },          \
  73         { KVM_TRACE_EXIT_TLBMOD,        "TLB Mod" },            \
  74         { KVM_TRACE_EXIT_TLBMISS_LD,    "TLB Miss (LD)" },      \
  75         { KVM_TRACE_EXIT_TLBMISS_ST,    "TLB Miss (ST)" },      \
  76         { KVM_TRACE_EXIT_ADDRERR_LD,    "Address Error (LD)" }, \
  77         { KVM_TRACE_EXIT_ADDRERR_ST,    "Address Err (ST)" },   \
  78         { KVM_TRACE_EXIT_SYSCALL,       "System Call" },        \
  79         { KVM_TRACE_EXIT_BREAK_INST,    "Break Inst" },         \
  80         { KVM_TRACE_EXIT_RESVD_INST,    "Reserved Inst" },      \
  81         { KVM_TRACE_EXIT_COP_UNUSABLE,  "COP0/1 Unusable" },    \
  82         { KVM_TRACE_EXIT_TRAP_INST,     "Trap Inst" },          \
  83         { KVM_TRACE_EXIT_MSA_FPE,       "MSA FPE" },            \
  84         { KVM_TRACE_EXIT_FPE,           "FPE" },                \
  85         { KVM_TRACE_EXIT_MSA_DISABLED,  "MSA Disabled" },       \
  86         { KVM_TRACE_EXIT_WAIT,          "WAIT" },               \
  87         { KVM_TRACE_EXIT_CACHE,         "CACHE" },              \
  88         { KVM_TRACE_EXIT_SIGNAL,        "Signal" }
  89
  90 TRACE_EVENT(kvm_exit,
  91             TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason),
  92             TP_ARGS(vcpu, reason),
  93             TP_STRUCT__entry(
  94                         __field(unsigned long, pc)
  95                         __field(unsigned int, reason)
  96             ),
  97
  98             TP_fast_assign(
  99                         __entry->pc = vcpu->arch.pc;
 100                         __entry->reason = reason;
 101             ),
 102
 103             TP_printk("[%s]PC: 0x%08lx",
 104                       __print_symbolic(__entry->reason,
 105                                        kvm_trace_symbol_exit_types),
 106                       __entry->pc)
 107 );
 108
 109 #define KVM_TRACE_MFC0          0
 110 #define KVM_TRACE_MTC0          1
 111 #define KVM_TRACE_DMFC0         2
 112 #define KVM_TRACE_DMTC0         3
 113 #define KVM_TRACE_RDHWR         4
 114
 115 #define KVM_TRACE_HWR_COP0      0
 116 #define KVM_TRACE_HWR_HWR       1
 117
 118 #define KVM_TRACE_COP0(REG, SEL)        ((KVM_TRACE_HWR_COP0 << 8) |    \
 119                                          ((REG) << 3) | (SEL))
 120 #define KVM_TRACE_HWR(REG, SEL)         ((KVM_TRACE_HWR_HWR  << 8) |    \
 121                                          ((REG) << 3) | (SEL))
 122
 123 #define kvm_trace_symbol_hwr_ops                                \
 124         { KVM_TRACE_MFC0,               "MFC0" },               \
 125         { KVM_TRACE_MTC0,               "MTC0" },               \
 126         { KVM_TRACE_DMFC0,              "DMFC0" },              \
 127         { KVM_TRACE_DMTC0,              "DMTC0" },              \
 128         { KVM_TRACE_RDHWR,              "RDHWR" }
 129
 130 #define kvm_trace_symbol_hwr_cop                                \
 131         { KVM_TRACE_HWR_COP0,           "COP0" },               \
 132         { KVM_TRACE_HWR_HWR,            "HWR" }
 133
 134 #define kvm_trace_symbol_hwr_regs                               \
 135         { KVM_TRACE_COP0( 0, 0),        "Index" },              \
 136         { KVM_TRACE_COP0( 2, 0),        "EntryLo0" },           \
 137         { KVM_TRACE_COP0( 3, 0),        "EntryLo1" },           \
 138         { KVM_TRACE_COP0( 4, 0),        "Context" },            \
 139         { KVM_TRACE_COP0( 4, 2),        "UserLocal" },          \
 140         { KVM_TRACE_COP0( 5, 0),        "PageMask" },           \
 141         { KVM_TRACE_COP0( 6, 0),        "Wired" },              \
 142         { KVM_TRACE_COP0( 7, 0),        "HWREna" },             \
 143         { KVM_TRACE_COP0( 8, 0),        "BadVAddr" },           \
 144         { KVM_TRACE_COP0( 9, 0),        "Count" },              \
 145         { KVM_TRACE_COP0(10, 0),        "EntryHi" },            \
 146         { KVM_TRACE_COP0(11, 0),        "Compare" },            \
 147         { KVM_TRACE_COP0(12, 0),        "Status" },             \
 148         { KVM_TRACE_COP0(12, 1),        "IntCtl" },             \
 149         { KVM_TRACE_COP0(12, 2),        "SRSCtl" },             \
 150         { KVM_TRACE_COP0(13, 0),        "Cause" },              \
 151         { KVM_TRACE_COP0(14, 0),        "EPC" },                \
 152         { KVM_TRACE_COP0(15, 0),        "PRId" },               \
 153         { KVM_TRACE_COP0(15, 1),        "EBase" },              \
 154         { KVM_TRACE_COP0(16, 0),        "Config" },             \
 155         { KVM_TRACE_COP0(16, 1),        "Config1" },            \
 156         { KVM_TRACE_COP0(16, 2),        "Config2" },            \
 157         { KVM_TRACE_COP0(16, 3),        "Config3" },            \
 158         { KVM_TRACE_COP0(16, 4),        "Config4" },            \
 159         { KVM_TRACE_COP0(16, 5),        "Config5" },            \
 160         { KVM_TRACE_COP0(16, 7),        "Config7" },            \
 161         { KVM_TRACE_COP0(26, 0),        "ECC" },                \
 162         { KVM_TRACE_COP0(30, 0),        "ErrorEPC" },           \
 163         { KVM_TRACE_COP0(31, 2),        "KScratch1" },          \
 164         { KVM_TRACE_COP0(31, 3),        "KScratch2" },          \
 165         { KVM_TRACE_COP0(31, 4),        "KScratch3" },          \
 166         { KVM_TRACE_COP0(31, 5),        "KScratch4" },          \
 167         { KVM_TRACE_COP0(31, 6),        "KScratch5" },          \
 168         { KVM_TRACE_COP0(31, 7),        "KScratch6" },          \
 169         { KVM_TRACE_HWR( 0, 0),         "CPUNum" },             \
 170         { KVM_TRACE_HWR( 1, 0),         "SYNCI_Step" },         \
 171         { KVM_TRACE_HWR( 2, 0),         "CC" },                 \
 172         { KVM_TRACE_HWR( 3, 0),         "CCRes" },              \
 173         { KVM_TRACE_HWR(29, 0),         "ULR" }
 174
 175 TRACE_EVENT(kvm_hwr,
 176             TP_PROTO(struct kvm_vcpu *vcpu, unsigned int op, unsigned int reg,
 177                      unsigned long val),
 178             TP_ARGS(vcpu, op, reg, val),
 179             TP_STRUCT__entry(
 180                         __field(unsigned long, val)
 181                         __field(u16, reg)
 182                         __field(u8, op)
 183             ),
 184
 185             TP_fast_assign(
 186                         __entry->val = val;
 187                         __entry->reg = reg;
 188                         __entry->op = op;
 189             ),
 190
 191             TP_printk("%s %s (%s:%u:%u) 0x%08lx",
 192                       __print_symbolic(__entry->op,
 193                                        kvm_trace_symbol_hwr_ops),
 194                       __print_symbolic(__entry->reg,
 195                                        kvm_trace_symbol_hwr_regs),
 196                       __print_symbolic(__entry->reg >> 8,
 197                                        kvm_trace_symbol_hwr_cop),
 198                       (__entry->reg >> 3) & 0x1f,
 199                       __entry->reg & 0x7,
 200                       __entry->val)
 201 );
 202
 203 #define KVM_TRACE_AUX_RESTORE           0
 204 #define KVM_TRACE_AUX_SAVE              1
 205 #define KVM_TRACE_AUX_ENABLE            2
 206 #define KVM_TRACE_AUX_DISABLE           3
 207 #define KVM_TRACE_AUX_DISCARD           4
 208
 209 #define KVM_TRACE_AUX_FPU               1
 210 #define KVM_TRACE_AUX_MSA               2
 211 #define KVM_TRACE_AUX_FPU_MSA           3
 212
 213 #define kvm_trace_symbol_aux_op         \
 214         { KVM_TRACE_AUX_RESTORE, "restore" },   \
 215         { KVM_TRACE_AUX_SAVE,    "save" },      \
 216         { KVM_TRACE_AUX_ENABLE,  "enable" },    \
 217         { KVM_TRACE_AUX_DISABLE, "disable" },   \
 218         { KVM_TRACE_AUX_DISCARD, "discard" }
 219
 220 #define kvm_trace_symbol_aux_state              \
 221         { KVM_TRACE_AUX_FPU,     "FPU" },       \
 222         { KVM_TRACE_AUX_MSA,     "MSA" },       \
 223         { KVM_TRACE_AUX_FPU_MSA, "FPU & MSA" }
 224
 225 TRACE_EVENT(kvm_aux,
 226             TP_PROTO(struct kvm_vcpu *vcpu, unsigned int op,
 227                      unsigned int state),
 228             TP_ARGS(vcpu, op, state),
 229             TP_STRUCT__entry(
 230                         __field(unsigned long, pc)
 231                         __field(u8, op)
 232                         __field(u8, state)
 233             ),
 234
 235             TP_fast_assign(
 236                         __entry->pc = vcpu->arch.pc;
 237                         __entry->op = op;
 238                         __entry->state = state;
 239             ),
 240
 241             TP_printk("%s %s PC: 0x%08lx",
 242                       __print_symbolic(__entry->op,
 243                                        kvm_trace_symbol_aux_op),
 244                       __print_symbolic(__entry->state,
 245                                        kvm_trace_symbol_aux_state),
 246                       __entry->pc)
 247 );
 248
 249 TRACE_EVENT(kvm_asid_change,
 250             TP_PROTO(struct kvm_vcpu *vcpu, unsigned int old_asid,
 251                      unsigned int new_asid),
 252             TP_ARGS(vcpu, old_asid, new_asid),
 253             TP_STRUCT__entry(
 254                         __field(unsigned long, pc)
 255                         __field(u8, old_asid)
 256                         __field(u8, new_asid)
 257             ),
 258
 259             TP_fast_assign(
 260                         __entry->pc = vcpu->arch.pc;
 261                         __entry->old_asid = old_asid;
 262                         __entry->new_asid = new_asid;
 263             ),
 264
 265             TP_printk("PC: 0x%08lx old: 0x%02x new: 0x%02x",
 266                       __entry->pc,
 267                       __entry->old_asid,
 268                       __entry->new_asid)
 269 );
 270
 271 #endif /* _TRACE_KVM_H */
 272
 273 /* This part must be outside protection */
 274 #include <trace/define_trace.h>