1/* SPDX-License-Identifier: GPL-2.0 */ 2#if !defined(_TRACE_KVMMMU_H) || defined(TRACE_HEADER_MULTI_READ) 3#define _TRACE_KVMMMU_H 4 5#include <linux/tracepoint.h> 6#include <linux/trace_events.h> 7 8#undef TRACE_SYSTEM 9#define TRACE_SYSTEM kvmmmu 10 11#define KVM_MMU_PAGE_FIELDS \ 12 __field(__u8, mmu_valid_gen) \ 13 __field(__u64, gfn) \ 14 __field(__u32, role) \ 15 __field(__u32, root_count) \ 16 __field(bool, unsync) 17 18#define KVM_MMU_PAGE_ASSIGN(sp) \ 19 __entry->mmu_valid_gen = sp->mmu_valid_gen; \ 20 __entry->gfn = sp->gfn; \ 21 __entry->role = sp->role.word; \ 22 __entry->root_count = sp->root_count; \ 23 __entry->unsync = sp->unsync; 24 25#define KVM_MMU_PAGE_PRINTK() ({ \ 26 const char *saved_ptr = trace_seq_buffer_ptr(p); \ 27 static const char *access_str[] = { \ 28 "---", "--x", "w--", "w-x", "-u-", "-ux", "wu-", "wux" \ 29 }; \ 30 union kvm_mmu_page_role role; \ 31 \ 32 role.word = __entry->role; \ 33 \ 34 trace_seq_printf(p, "sp gen %u gfn %llx l%u %u-byte q%u%s %s%s" \ 35 " %snxe %sad root %u %s%c", \ 36 __entry->mmu_valid_gen, \ 37 __entry->gfn, role.level, \ 38 role.has_4_byte_gpte ? 4 : 8, \ 39 role.quadrant, \ 40 role.direct ? " direct" : "", \ 41 access_str[role.access], \ 42 role.invalid ? " invalid" : "", \ 43 role.efer_nx ? "" : "!", \ 44 role.ad_disabled ? "!" : "", \ 45 __entry->root_count, \ 46 __entry->unsync ? "unsync" : "sync", 0); \ 47 saved_ptr; \ 48 }) 49 50#define kvm_mmu_trace_pferr_flags \ 51 { PFERR_PRESENT_MASK, "P" }, \ 52 { PFERR_WRITE_MASK, "W" }, \ 53 { PFERR_USER_MASK, "U" }, \ 54 { PFERR_RSVD_MASK, "RSVD" }, \ 55 { PFERR_FETCH_MASK, "F" } 56 57TRACE_DEFINE_ENUM(RET_PF_CONTINUE); 58TRACE_DEFINE_ENUM(RET_PF_RETRY); 59TRACE_DEFINE_ENUM(RET_PF_EMULATE); 60TRACE_DEFINE_ENUM(RET_PF_INVALID); 61TRACE_DEFINE_ENUM(RET_PF_FIXED); 62TRACE_DEFINE_ENUM(RET_PF_SPURIOUS); 63 64/* 65 * A pagetable walk has started 66 */ 67TRACE_EVENT( 68 kvm_mmu_pagetable_walk, 69 TP_PROTO(u64 addr, u32 pferr), 70 TP_ARGS(addr, pferr), 71 72 TP_STRUCT__entry( 73 __field(__u64, addr) 74 __field(__u32, pferr) 75 ), 76 77 TP_fast_assign( 78 __entry->addr = addr; 79 __entry->pferr = pferr; 80 ), 81 82 TP_printk("addr %llx pferr %x %s", __entry->addr, __entry->pferr, 83 __print_flags(__entry->pferr, "|", kvm_mmu_trace_pferr_flags)) 84); 85 86 87/* We just walked a paging element */ 88TRACE_EVENT( 89 kvm_mmu_paging_element, 90 TP_PROTO(u64 pte, int level), 91 TP_ARGS(pte, level), 92 93 TP_STRUCT__entry( 94 __field(__u64, pte) 95 __field(__u32, level) 96 ), 97 98 TP_fast_assign( 99 __entry->pte = pte; 100 __entry->level = level; 101 ), 102 103 TP_printk("pte %llx level %u", __entry->pte, __entry->level) 104); 105 106DECLARE_EVENT_CLASS(kvm_mmu_set_bit_class, 107 108 TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size), 109 110 TP_ARGS(table_gfn, index, size), 111 112 TP_STRUCT__entry( 113 __field(__u64, gpa) 114 ), 115 116 TP_fast_assign( 117 __entry->gpa = ((u64)table_gfn << PAGE_SHIFT) 118 + index * size; 119 ), 120 121 TP_printk("gpa %llx", __entry->gpa) 122); 123 124/* We set a pte accessed bit */ 125DEFINE_EVENT(kvm_mmu_set_bit_class, kvm_mmu_set_accessed_bit, 126 127 TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size), 128 129 TP_ARGS(table_gfn, index, size) 130); 131 132/* We set a pte dirty bit */ 133DEFINE_EVENT(kvm_mmu_set_bit_class, kvm_mmu_set_dirty_bit, 134 135 TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size), 136 137 TP_ARGS(table_gfn, index, size) 138); 139 140TRACE_EVENT( 141 kvm_mmu_walker_error, 142 TP_PROTO(u32 pferr), 143 TP_ARGS(pferr), 144 145 TP_STRUCT__entry( 146 __field(__u32, pferr) 147 ), 148 149 TP_fast_assign( 150 __entry->pferr = pferr; 151 ), 152 153 TP_printk("pferr %x %s", __entry->pferr, 154 __print_flags(__entry->pferr, "|", kvm_mmu_trace_pferr_flags)) 155); 156 157TRACE_EVENT( 158 kvm_mmu_get_page, 159 TP_PROTO(struct kvm_mmu_page *sp, bool created), 160 TP_ARGS(sp, created), 161 162 TP_STRUCT__entry( 163 KVM_MMU_PAGE_FIELDS 164 __field(bool, created) 165 ), 166 167 TP_fast_assign( 168 KVM_MMU_PAGE_ASSIGN(sp) 169 __entry->created = created; 170 ), 171 172 TP_printk("%s %s", KVM_MMU_PAGE_PRINTK(), 173 __entry->created ? "new" : "existing") 174); 175 176DECLARE_EVENT_CLASS(kvm_mmu_page_class, 177 178 TP_PROTO(struct kvm_mmu_page *sp), 179 TP_ARGS(sp), 180 181 TP_STRUCT__entry( 182 KVM_MMU_PAGE_FIELDS 183 ), 184 185 TP_fast_assign( 186 KVM_MMU_PAGE_ASSIGN(sp) 187 ), 188 189 TP_printk("%s", KVM_MMU_PAGE_PRINTK()) 190); 191 192DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_sync_page, 193 TP_PROTO(struct kvm_mmu_page *sp), 194 195 TP_ARGS(sp) 196); 197 198DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_unsync_page, 199 TP_PROTO(struct kvm_mmu_page *sp), 200 201 TP_ARGS(sp) 202); 203 204DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_prepare_zap_page, 205 TP_PROTO(struct kvm_mmu_page *sp), 206 207 TP_ARGS(sp) 208); 209 210TRACE_EVENT( 211 mark_mmio_spte, 212 TP_PROTO(u64 *sptep, gfn_t gfn, u64 spte), 213 TP_ARGS(sptep, gfn, spte), 214 215 TP_STRUCT__entry( 216 __field(void *, sptep) 217 __field(gfn_t, gfn) 218 __field(unsigned, access) 219 __field(unsigned int, gen) 220 ), 221 222 TP_fast_assign( 223 __entry->sptep = sptep; 224 __entry->gfn = gfn; 225 __entry->access = spte & ACC_ALL; 226 __entry->gen = get_mmio_spte_generation(spte); 227 ), 228 229 TP_printk("sptep:%p gfn %llx access %x gen %x", __entry->sptep, 230 __entry->gfn, __entry->access, __entry->gen) 231); 232 233TRACE_EVENT( 234 handle_mmio_page_fault, 235 TP_PROTO(u64 addr, gfn_t gfn, unsigned access), 236 TP_ARGS(addr, gfn, access), 237 238 TP_STRUCT__entry( 239 __field(u64, addr) 240 __field(gfn_t, gfn) 241 __field(unsigned, access) 242 ), 243 244 TP_fast_assign( 245 __entry->addr = addr; 246 __entry->gfn = gfn; 247 __entry->access = access; 248 ), 249 250 TP_printk("addr:%llx gfn %llx access %x", __entry->addr, __entry->gfn, 251 __entry->access) 252); 253 254TRACE_EVENT( 255 fast_page_fault, 256 TP_PROTO(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault, 257 u64 *sptep, u64 old_spte, int ret), 258 TP_ARGS(vcpu, fault, sptep, old_spte, ret), 259 260 TP_STRUCT__entry( 261 __field(int, vcpu_id) 262 __field(gpa_t, cr2_or_gpa) 263 __field(u32, error_code) 264 __field(u64 *, sptep) 265 __field(u64, old_spte) 266 __field(u64, new_spte) 267 __field(int, ret) 268 ), 269 270 TP_fast_assign( 271 __entry->vcpu_id = vcpu->vcpu_id; 272 __entry->cr2_or_gpa = fault->addr; 273 __entry->error_code = fault->error_code; 274 __entry->sptep = sptep; 275 __entry->old_spte = old_spte; 276 __entry->new_spte = *sptep; 277 __entry->ret = ret; 278 ), 279 280 TP_printk("vcpu %d gva %llx error_code %s sptep %p old %#llx" 281 " new %llx spurious %d fixed %d", __entry->vcpu_id, 282 __entry->cr2_or_gpa, __print_flags(__entry->error_code, "|", 283 kvm_mmu_trace_pferr_flags), __entry->sptep, 284 __entry->old_spte, __entry->new_spte, 285 __entry->ret == RET_PF_SPURIOUS, __entry->ret == RET_PF_FIXED 286 ) 287); 288 289TRACE_EVENT( 290 kvm_mmu_zap_all_fast, 291 TP_PROTO(struct kvm *kvm), 292 TP_ARGS(kvm), 293 294 TP_STRUCT__entry( 295 __field(__u8, mmu_valid_gen) 296 __field(unsigned int, mmu_used_pages) 297 ), 298 299 TP_fast_assign( 300 __entry->mmu_valid_gen = kvm->arch.mmu_valid_gen; 301 __entry->mmu_used_pages = kvm->arch.n_used_mmu_pages; 302 ), 303 304 TP_printk("kvm-mmu-valid-gen %u used_pages %x", 305 __entry->mmu_valid_gen, __entry->mmu_used_pages 306 ) 307); 308 309 310TRACE_EVENT( 311 check_mmio_spte, 312 TP_PROTO(u64 spte, unsigned int kvm_gen, unsigned int spte_gen), 313 TP_ARGS(spte, kvm_gen, spte_gen), 314 315 TP_STRUCT__entry( 316 __field(unsigned int, kvm_gen) 317 __field(unsigned int, spte_gen) 318 __field(u64, spte) 319 ), 320 321 TP_fast_assign( 322 __entry->kvm_gen = kvm_gen; 323 __entry->spte_gen = spte_gen; 324 __entry->spte = spte; 325 ), 326 327 TP_printk("spte %llx kvm_gen %x spte-gen %x valid %d", __entry->spte, 328 __entry->kvm_gen, __entry->spte_gen, 329 __entry->kvm_gen == __entry->spte_gen 330 ) 331); 332 333TRACE_EVENT( 334 kvm_mmu_set_spte, 335 TP_PROTO(int level, gfn_t gfn, u64 *sptep), 336 TP_ARGS(level, gfn, sptep), 337 338 TP_STRUCT__entry( 339 __field(u64, gfn) 340 __field(u64, spte) 341 __field(u64, sptep) 342 __field(u8, level) 343 /* These depend on page entry type, so compute them now. */ 344 __field(bool, r) 345 __field(bool, x) 346 __field(signed char, u) 347 ), 348 349 TP_fast_assign( 350 __entry->gfn = gfn; 351 __entry->spte = *sptep; 352 __entry->sptep = virt_to_phys(sptep); 353 __entry->level = level; 354 __entry->r = shadow_present_mask || (__entry->spte & PT_PRESENT_MASK); 355 __entry->x = is_executable_pte(__entry->spte); 356 __entry->u = shadow_user_mask ? !!(__entry->spte & shadow_user_mask) : -1; 357 ), 358 359 TP_printk("gfn %llx spte %llx (%s%s%s%s) level %d at %llx", 360 __entry->gfn, __entry->spte, 361 __entry->r ? "r" : "-", 362 __entry->spte & PT_WRITABLE_MASK ? "w" : "-", 363 __entry->x ? "x" : "-", 364 __entry->u == -1 ? "" : (__entry->u ? "u" : "-"), 365 __entry->level, __entry->sptep 366 ) 367); 368 369TRACE_EVENT( 370 kvm_mmu_spte_requested, 371 TP_PROTO(struct kvm_page_fault *fault), 372 TP_ARGS(fault), 373 374 TP_STRUCT__entry( 375 __field(u64, gfn) 376 __field(u64, pfn) 377 __field(u8, level) 378 ), 379 380 TP_fast_assign( 381 __entry->gfn = fault->gfn; 382 __entry->pfn = fault->pfn | (fault->gfn & (KVM_PAGES_PER_HPAGE(fault->goal_level) - 1)); 383 __entry->level = fault->goal_level; 384 ), 385 386 TP_printk("gfn %llx pfn %llx level %d", 387 __entry->gfn, __entry->pfn, __entry->level 388 ) 389); 390 391TRACE_EVENT( 392 kvm_tdp_mmu_spte_changed, 393 TP_PROTO(int as_id, gfn_t gfn, int level, u64 old_spte, u64 new_spte), 394 TP_ARGS(as_id, gfn, level, old_spte, new_spte), 395 396 TP_STRUCT__entry( 397 __field(u64, gfn) 398 __field(u64, old_spte) 399 __field(u64, new_spte) 400 /* Level cannot be larger than 5 on x86, so it fits in a u8. */ 401 __field(u8, level) 402 /* as_id can only be 0 or 1 x86, so it fits in a u8. */ 403 __field(u8, as_id) 404 ), 405 406 TP_fast_assign( 407 __entry->gfn = gfn; 408 __entry->old_spte = old_spte; 409 __entry->new_spte = new_spte; 410 __entry->level = level; 411 __entry->as_id = as_id; 412 ), 413 414 TP_printk("as id %d gfn %llx level %d old_spte %llx new_spte %llx", 415 __entry->as_id, __entry->gfn, __entry->level, 416 __entry->old_spte, __entry->new_spte 417 ) 418); 419 420TRACE_EVENT( 421 kvm_mmu_split_huge_page, 422 TP_PROTO(u64 gfn, u64 spte, int level, int errno), 423 TP_ARGS(gfn, spte, level, errno), 424 425 TP_STRUCT__entry( 426 __field(u64, gfn) 427 __field(u64, spte) 428 __field(int, level) 429 __field(int, errno) 430 ), 431 432 TP_fast_assign( 433 __entry->gfn = gfn; 434 __entry->spte = spte; 435 __entry->level = level; 436 __entry->errno = errno; 437 ), 438 439 TP_printk("gfn %llx spte %llx level %d errno %d", 440 __entry->gfn, __entry->spte, __entry->level, __entry->errno) 441); 442 443#endif /* _TRACE_KVMMMU_H */ 444 445#undef TRACE_INCLUDE_PATH 446#define TRACE_INCLUDE_PATH mmu 447#undef TRACE_INCLUDE_FILE 448#define TRACE_INCLUDE_FILE mmutrace 449 450/* This part must be outside protection */ 451#include <trace/define_trace.h> 452