linux/arch/mips/kvm/trace.h
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   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 * arch/mips/kvm/mips.c
  22 */
  23extern bool kvm_trace_guest_mode_change;
  24int kvm_guest_mode_change_trace_reg(void);
  25void kvm_guest_mode_change_trace_unreg(void);
  26
  27/*
  28 * Tracepoints for VM enters
  29 */
  30DECLARE_EVENT_CLASS(kvm_transition,
  31        TP_PROTO(struct kvm_vcpu *vcpu),
  32        TP_ARGS(vcpu),
  33        TP_STRUCT__entry(
  34                __field(unsigned long, pc)
  35        ),
  36
  37        TP_fast_assign(
  38                __entry->pc = vcpu->arch.pc;
  39        ),
  40
  41        TP_printk("PC: 0x%08lx",
  42                  __entry->pc)
  43);
  44
  45DEFINE_EVENT(kvm_transition, kvm_enter,
  46             TP_PROTO(struct kvm_vcpu *vcpu),
  47             TP_ARGS(vcpu));
  48
  49DEFINE_EVENT(kvm_transition, kvm_reenter,
  50             TP_PROTO(struct kvm_vcpu *vcpu),
  51             TP_ARGS(vcpu));
  52
  53DEFINE_EVENT(kvm_transition, kvm_out,
  54             TP_PROTO(struct kvm_vcpu *vcpu),
  55             TP_ARGS(vcpu));
  56
  57/* The first 32 exit reasons correspond to Cause.ExcCode */
  58#define KVM_TRACE_EXIT_INT               0
  59#define KVM_TRACE_EXIT_TLBMOD            1
  60#define KVM_TRACE_EXIT_TLBMISS_LD        2
  61#define KVM_TRACE_EXIT_TLBMISS_ST        3
  62#define KVM_TRACE_EXIT_ADDRERR_LD        4
  63#define KVM_TRACE_EXIT_ADDRERR_ST        5
  64#define KVM_TRACE_EXIT_SYSCALL           8
  65#define KVM_TRACE_EXIT_BREAK_INST        9
  66#define KVM_TRACE_EXIT_RESVD_INST       10
  67#define KVM_TRACE_EXIT_COP_UNUSABLE     11
  68#define KVM_TRACE_EXIT_TRAP_INST        13
  69#define KVM_TRACE_EXIT_MSA_FPE          14
  70#define KVM_TRACE_EXIT_FPE              15
  71#define KVM_TRACE_EXIT_MSA_DISABLED     21
  72#define KVM_TRACE_EXIT_GUEST_EXIT       27
  73/* Further exit reasons */
  74#define KVM_TRACE_EXIT_WAIT             32
  75#define KVM_TRACE_EXIT_CACHE            33
  76#define KVM_TRACE_EXIT_SIGNAL           34
  77/* 32 exit reasons correspond to GuestCtl0.GExcCode (VZ) */
  78#define KVM_TRACE_EXIT_GEXCCODE_BASE    64
  79#define KVM_TRACE_EXIT_GPSI             64      /*  0 */
  80#define KVM_TRACE_EXIT_GSFC             65      /*  1 */
  81#define KVM_TRACE_EXIT_HC               66      /*  2 */
  82#define KVM_TRACE_EXIT_GRR              67      /*  3 */
  83#define KVM_TRACE_EXIT_GVA              72      /*  8 */
  84#define KVM_TRACE_EXIT_GHFC             73      /*  9 */
  85#define KVM_TRACE_EXIT_GPA              74      /* 10 */
  86
  87/* Tracepoints for VM exits */
  88#define kvm_trace_symbol_exit_types                             \
  89        { KVM_TRACE_EXIT_INT,           "Interrupt" },          \
  90        { KVM_TRACE_EXIT_TLBMOD,        "TLB Mod" },            \
  91        { KVM_TRACE_EXIT_TLBMISS_LD,    "TLB Miss (LD)" },      \
  92        { KVM_TRACE_EXIT_TLBMISS_ST,    "TLB Miss (ST)" },      \
  93        { KVM_TRACE_EXIT_ADDRERR_LD,    "Address Error (LD)" }, \
  94        { KVM_TRACE_EXIT_ADDRERR_ST,    "Address Err (ST)" },   \
  95        { KVM_TRACE_EXIT_SYSCALL,       "System Call" },        \
  96        { KVM_TRACE_EXIT_BREAK_INST,    "Break Inst" },         \
  97        { KVM_TRACE_EXIT_RESVD_INST,    "Reserved Inst" },      \
  98        { KVM_TRACE_EXIT_COP_UNUSABLE,  "COP0/1 Unusable" },    \
  99        { KVM_TRACE_EXIT_TRAP_INST,     "Trap Inst" },          \
 100        { KVM_TRACE_EXIT_MSA_FPE,       "MSA FPE" },            \
 101        { KVM_TRACE_EXIT_FPE,           "FPE" },                \
 102        { KVM_TRACE_EXIT_MSA_DISABLED,  "MSA Disabled" },       \
 103        { KVM_TRACE_EXIT_GUEST_EXIT,    "Guest Exit" },         \
 104        { KVM_TRACE_EXIT_WAIT,          "WAIT" },               \
 105        { KVM_TRACE_EXIT_CACHE,         "CACHE" },              \
 106        { KVM_TRACE_EXIT_SIGNAL,        "Signal" },             \
 107        { KVM_TRACE_EXIT_GPSI,          "GPSI" },               \
 108        { KVM_TRACE_EXIT_GSFC,          "GSFC" },               \
 109        { KVM_TRACE_EXIT_HC,            "HC" },                 \
 110        { KVM_TRACE_EXIT_GRR,           "GRR" },                \
 111        { KVM_TRACE_EXIT_GVA,           "GVA" },                \
 112        { KVM_TRACE_EXIT_GHFC,          "GHFC" },               \
 113        { KVM_TRACE_EXIT_GPA,           "GPA" }
 114
 115TRACE_EVENT(kvm_exit,
 116            TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason),
 117            TP_ARGS(vcpu, reason),
 118            TP_STRUCT__entry(
 119                        __field(unsigned long, pc)
 120                        __field(unsigned int, reason)
 121            ),
 122
 123            TP_fast_assign(
 124                        __entry->pc = vcpu->arch.pc;
 125                        __entry->reason = reason;
 126            ),
 127
 128            TP_printk("[%s]PC: 0x%08lx",
 129                      __print_symbolic(__entry->reason,
 130                                       kvm_trace_symbol_exit_types),
 131                      __entry->pc)
 132);
 133
 134#define KVM_TRACE_MFC0          0
 135#define KVM_TRACE_MTC0          1
 136#define KVM_TRACE_DMFC0         2
 137#define KVM_TRACE_DMTC0         3
 138#define KVM_TRACE_RDHWR         4
 139
 140#define KVM_TRACE_HWR_COP0      0
 141#define KVM_TRACE_HWR_HWR       1
 142
 143#define KVM_TRACE_COP0(REG, SEL)        ((KVM_TRACE_HWR_COP0 << 8) |    \
 144                                         ((REG) << 3) | (SEL))
 145#define KVM_TRACE_HWR(REG, SEL)         ((KVM_TRACE_HWR_HWR  << 8) |    \
 146                                         ((REG) << 3) | (SEL))
 147
 148#define kvm_trace_symbol_hwr_ops                                \
 149        { KVM_TRACE_MFC0,               "MFC0" },               \
 150        { KVM_TRACE_MTC0,               "MTC0" },               \
 151        { KVM_TRACE_DMFC0,              "DMFC0" },              \
 152        { KVM_TRACE_DMTC0,              "DMTC0" },              \
 153        { KVM_TRACE_RDHWR,              "RDHWR" }
 154
 155#define kvm_trace_symbol_hwr_cop                                \
 156        { KVM_TRACE_HWR_COP0,           "COP0" },               \
 157        { KVM_TRACE_HWR_HWR,            "HWR" }
 158
 159#define kvm_trace_symbol_hwr_regs                               \
 160        { KVM_TRACE_COP0( 0, 0),        "Index" },              \
 161        { KVM_TRACE_COP0( 2, 0),        "EntryLo0" },           \
 162        { KVM_TRACE_COP0( 3, 0),        "EntryLo1" },           \
 163        { KVM_TRACE_COP0( 4, 0),        "Context" },            \
 164        { KVM_TRACE_COP0( 4, 2),        "UserLocal" },          \
 165        { KVM_TRACE_COP0( 5, 0),        "PageMask" },           \
 166        { KVM_TRACE_COP0( 6, 0),        "Wired" },              \
 167        { KVM_TRACE_COP0( 7, 0),        "HWREna" },             \
 168        { KVM_TRACE_COP0( 8, 0),        "BadVAddr" },           \
 169        { KVM_TRACE_COP0( 9, 0),        "Count" },              \
 170        { KVM_TRACE_COP0(10, 0),        "EntryHi" },            \
 171        { KVM_TRACE_COP0(11, 0),        "Compare" },            \
 172        { KVM_TRACE_COP0(12, 0),        "Status" },             \
 173        { KVM_TRACE_COP0(12, 1),        "IntCtl" },             \
 174        { KVM_TRACE_COP0(12, 2),        "SRSCtl" },             \
 175        { KVM_TRACE_COP0(13, 0),        "Cause" },              \
 176        { KVM_TRACE_COP0(14, 0),        "EPC" },                \
 177        { KVM_TRACE_COP0(15, 0),        "PRId" },               \
 178        { KVM_TRACE_COP0(15, 1),        "EBase" },              \
 179        { KVM_TRACE_COP0(16, 0),        "Config" },             \
 180        { KVM_TRACE_COP0(16, 1),        "Config1" },            \
 181        { KVM_TRACE_COP0(16, 2),        "Config2" },            \
 182        { KVM_TRACE_COP0(16, 3),        "Config3" },            \
 183        { KVM_TRACE_COP0(16, 4),        "Config4" },            \
 184        { KVM_TRACE_COP0(16, 5),        "Config5" },            \
 185        { KVM_TRACE_COP0(16, 7),        "Config7" },            \
 186        { KVM_TRACE_COP0(17, 1),        "MAAR" },               \
 187        { KVM_TRACE_COP0(17, 2),        "MAARI" },              \
 188        { KVM_TRACE_COP0(26, 0),        "ECC" },                \
 189        { KVM_TRACE_COP0(30, 0),        "ErrorEPC" },           \
 190        { KVM_TRACE_COP0(31, 2),        "KScratch1" },          \
 191        { KVM_TRACE_COP0(31, 3),        "KScratch2" },          \
 192        { KVM_TRACE_COP0(31, 4),        "KScratch3" },          \
 193        { KVM_TRACE_COP0(31, 5),        "KScratch4" },          \
 194        { KVM_TRACE_COP0(31, 6),        "KScratch5" },          \
 195        { KVM_TRACE_COP0(31, 7),        "KScratch6" },          \
 196        { KVM_TRACE_HWR( 0, 0),         "CPUNum" },             \
 197        { KVM_TRACE_HWR( 1, 0),         "SYNCI_Step" },         \
 198        { KVM_TRACE_HWR( 2, 0),         "CC" },                 \
 199        { KVM_TRACE_HWR( 3, 0),         "CCRes" },              \
 200        { KVM_TRACE_HWR(29, 0),         "ULR" }
 201
 202TRACE_EVENT(kvm_hwr,
 203            TP_PROTO(struct kvm_vcpu *vcpu, unsigned int op, unsigned int reg,
 204                     unsigned long val),
 205            TP_ARGS(vcpu, op, reg, val),
 206            TP_STRUCT__entry(
 207                        __field(unsigned long, val)
 208                        __field(u16, reg)
 209                        __field(u8, op)
 210            ),
 211
 212            TP_fast_assign(
 213                        __entry->val = val;
 214                        __entry->reg = reg;
 215                        __entry->op = op;
 216            ),
 217
 218            TP_printk("%s %s (%s:%u:%u) 0x%08lx",
 219                      __print_symbolic(__entry->op,
 220                                       kvm_trace_symbol_hwr_ops),
 221                      __print_symbolic(__entry->reg,
 222                                       kvm_trace_symbol_hwr_regs),
 223                      __print_symbolic(__entry->reg >> 8,
 224                                       kvm_trace_symbol_hwr_cop),
 225                      (__entry->reg >> 3) & 0x1f,
 226                      __entry->reg & 0x7,
 227                      __entry->val)
 228);
 229
 230#define KVM_TRACE_AUX_RESTORE           0
 231#define KVM_TRACE_AUX_SAVE              1
 232#define KVM_TRACE_AUX_ENABLE            2
 233#define KVM_TRACE_AUX_DISABLE           3
 234#define KVM_TRACE_AUX_DISCARD           4
 235
 236#define KVM_TRACE_AUX_FPU               1
 237#define KVM_TRACE_AUX_MSA               2
 238#define KVM_TRACE_AUX_FPU_MSA           3
 239
 240#define kvm_trace_symbol_aux_op         \
 241        { KVM_TRACE_AUX_RESTORE, "restore" },   \
 242        { KVM_TRACE_AUX_SAVE,    "save" },      \
 243        { KVM_TRACE_AUX_ENABLE,  "enable" },    \
 244        { KVM_TRACE_AUX_DISABLE, "disable" },   \
 245        { KVM_TRACE_AUX_DISCARD, "discard" }
 246
 247#define kvm_trace_symbol_aux_state              \
 248        { KVM_TRACE_AUX_FPU,     "FPU" },       \
 249        { KVM_TRACE_AUX_MSA,     "MSA" },       \
 250        { KVM_TRACE_AUX_FPU_MSA, "FPU & MSA" }
 251
 252TRACE_EVENT(kvm_aux,
 253            TP_PROTO(struct kvm_vcpu *vcpu, unsigned int op,
 254                     unsigned int state),
 255            TP_ARGS(vcpu, op, state),
 256            TP_STRUCT__entry(
 257                        __field(unsigned long, pc)
 258                        __field(u8, op)
 259                        __field(u8, state)
 260            ),
 261
 262            TP_fast_assign(
 263                        __entry->pc = vcpu->arch.pc;
 264                        __entry->op = op;
 265                        __entry->state = state;
 266            ),
 267
 268            TP_printk("%s %s PC: 0x%08lx",
 269                      __print_symbolic(__entry->op,
 270                                       kvm_trace_symbol_aux_op),
 271                      __print_symbolic(__entry->state,
 272                                       kvm_trace_symbol_aux_state),
 273                      __entry->pc)
 274);
 275
 276TRACE_EVENT(kvm_asid_change,
 277            TP_PROTO(struct kvm_vcpu *vcpu, unsigned int old_asid,
 278                     unsigned int new_asid),
 279            TP_ARGS(vcpu, old_asid, new_asid),
 280            TP_STRUCT__entry(
 281                        __field(unsigned long, pc)
 282                        __field(u8, old_asid)
 283                        __field(u8, new_asid)
 284            ),
 285
 286            TP_fast_assign(
 287                        __entry->pc = vcpu->arch.pc;
 288                        __entry->old_asid = old_asid;
 289                        __entry->new_asid = new_asid;
 290            ),
 291
 292            TP_printk("PC: 0x%08lx old: 0x%02x new: 0x%02x",
 293                      __entry->pc,
 294                      __entry->old_asid,
 295                      __entry->new_asid)
 296);
 297
 298TRACE_EVENT(kvm_guestid_change,
 299            TP_PROTO(struct kvm_vcpu *vcpu, unsigned int guestid),
 300            TP_ARGS(vcpu, guestid),
 301            TP_STRUCT__entry(
 302                        __field(unsigned int, guestid)
 303            ),
 304
 305            TP_fast_assign(
 306                        __entry->guestid = guestid;
 307            ),
 308
 309            TP_printk("GuestID: 0x%02x",
 310                      __entry->guestid)
 311);
 312
 313TRACE_EVENT_FN(kvm_guest_mode_change,
 314            TP_PROTO(struct kvm_vcpu *vcpu),
 315            TP_ARGS(vcpu),
 316            TP_STRUCT__entry(
 317                        __field(unsigned long, epc)
 318                        __field(unsigned long, pc)
 319                        __field(unsigned long, badvaddr)
 320                        __field(unsigned int, status)
 321                        __field(unsigned int, cause)
 322            ),
 323
 324            TP_fast_assign(
 325                        __entry->epc = kvm_read_c0_guest_epc(vcpu->arch.cop0);
 326                        __entry->pc = vcpu->arch.pc;
 327                        __entry->badvaddr = kvm_read_c0_guest_badvaddr(vcpu->arch.cop0);
 328                        __entry->status = kvm_read_c0_guest_status(vcpu->arch.cop0);
 329                        __entry->cause = kvm_read_c0_guest_cause(vcpu->arch.cop0);
 330            ),
 331
 332            TP_printk("EPC: 0x%08lx PC: 0x%08lx Status: 0x%08x Cause: 0x%08x BadVAddr: 0x%08lx",
 333                      __entry->epc,
 334                      __entry->pc,
 335                      __entry->status,
 336                      __entry->cause,
 337                      __entry->badvaddr),
 338
 339            kvm_guest_mode_change_trace_reg,
 340            kvm_guest_mode_change_trace_unreg
 341);
 342
 343#endif /* _TRACE_KVM_H */
 344
 345/* This part must be outside protection */
 346#include <trace/define_trace.h>
 347