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 */ 23 extern bool kvm_trace_guest_mode_change; 24 int kvm_guest_mode_change_trace_reg(void); 25 void kvm_guest_mode_change_trace_unreg(void); 26 27 /* 28 * Tracepoints for VM enters 29 */ 30 DECLARE_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 45 DEFINE_EVENT(kvm_transition, kvm_enter, 46 TP_PROTO(struct kvm_vcpu *vcpu), 47 TP_ARGS(vcpu)); 48 49 DEFINE_EVENT(kvm_transition, kvm_reenter, 50 TP_PROTO(struct kvm_vcpu *vcpu), 51 TP_ARGS(vcpu)); 52 53 DEFINE_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" } 114 115 TRACE_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" } 201 202 TRACE_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" } 251 252 TRACE_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 ); 275 276 TRACE_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 ); 297 298 TRACE_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 ); 312 313 TRACE_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