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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(unsigned long, 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 %lx gfn %llx l%u%s q%u%s %s%s" \
35 " %snxe %sad root %u %s%c", \
36 __entry->mmu_valid_gen, \
37 __entry->gfn, role.level, \
38 role.cr4_pae ? " pae" : "", \
39 role.quadrant, \
40 role.direct ? " direct" : "", \
41 access_str[role.access], \
42 role.invalid ? " invalid" : "", \
43 role.nxe ? "" : "!", \
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
57/*
58 * A pagetable walk has started
59 */
60TRACE_EVENT(
61 kvm_mmu_pagetable_walk,
62 TP_PROTO(u64 addr, u32 pferr),
63 TP_ARGS(addr, pferr),
64
65 TP_STRUCT__entry(
66 __field(__u64, addr)
67 __field(__u32, pferr)
68 ),
69
70 TP_fast_assign(
71 __entry->addr = addr;
72 __entry->pferr = pferr;
73 ),
74
75 TP_printk("addr %llx pferr %x %s", __entry->addr, __entry->pferr,
76 __print_flags(__entry->pferr, "|", kvm_mmu_trace_pferr_flags))
77);
78
79
80/* We just walked a paging element */
81TRACE_EVENT(
82 kvm_mmu_paging_element,
83 TP_PROTO(u64 pte, int level),
84 TP_ARGS(pte, level),
85
86 TP_STRUCT__entry(
87 __field(__u64, pte)
88 __field(__u32, level)
89 ),
90
91 TP_fast_assign(
92 __entry->pte = pte;
93 __entry->level = level;
94 ),
95
96 TP_printk("pte %llx level %u", __entry->pte, __entry->level)
97);
98
99DECLARE_EVENT_CLASS(kvm_mmu_set_bit_class,
100
101 TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
102
103 TP_ARGS(table_gfn, index, size),
104
105 TP_STRUCT__entry(
106 __field(__u64, gpa)
107 ),
108
109 TP_fast_assign(
110 __entry->gpa = ((u64)table_gfn << PAGE_SHIFT)
111 + index * size;
112 ),
113
114 TP_printk("gpa %llx", __entry->gpa)
115);
116
117/* We set a pte accessed bit */
118DEFINE_EVENT(kvm_mmu_set_bit_class, kvm_mmu_set_accessed_bit,
119
120 TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
121
122 TP_ARGS(table_gfn, index, size)
123);
124
125/* We set a pte dirty bit */
126DEFINE_EVENT(kvm_mmu_set_bit_class, kvm_mmu_set_dirty_bit,
127
128 TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
129
130 TP_ARGS(table_gfn, index, size)
131);
132
133TRACE_EVENT(
134 kvm_mmu_walker_error,
135 TP_PROTO(u32 pferr),
136 TP_ARGS(pferr),
137
138 TP_STRUCT__entry(
139 __field(__u32, pferr)
140 ),
141
142 TP_fast_assign(
143 __entry->pferr = pferr;
144 ),
145
146 TP_printk("pferr %x %s", __entry->pferr,
147 __print_flags(__entry->pferr, "|", kvm_mmu_trace_pferr_flags))
148);
149
150TRACE_EVENT(
151 kvm_mmu_get_page,
152 TP_PROTO(struct kvm_mmu_page *sp, bool created),
153 TP_ARGS(sp, created),
154
155 TP_STRUCT__entry(
156 KVM_MMU_PAGE_FIELDS
157 __field(bool, created)
158 ),
159
160 TP_fast_assign(
161 KVM_MMU_PAGE_ASSIGN(sp)
162 __entry->created = created;
163 ),
164
165 TP_printk("%s %s", KVM_MMU_PAGE_PRINTK(),
166 __entry->created ? "new" : "existing")
167);
168
169DECLARE_EVENT_CLASS(kvm_mmu_page_class,
170
171 TP_PROTO(struct kvm_mmu_page *sp),
172 TP_ARGS(sp),
173
174 TP_STRUCT__entry(
175 KVM_MMU_PAGE_FIELDS
176 ),
177
178 TP_fast_assign(
179 KVM_MMU_PAGE_ASSIGN(sp)
180 ),
181
182 TP_printk("%s", KVM_MMU_PAGE_PRINTK())
183);
184
185DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_sync_page,
186 TP_PROTO(struct kvm_mmu_page *sp),
187
188 TP_ARGS(sp)
189);
190
191DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_unsync_page,
192 TP_PROTO(struct kvm_mmu_page *sp),
193
194 TP_ARGS(sp)
195);
196
197DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_prepare_zap_page,
198 TP_PROTO(struct kvm_mmu_page *sp),
199
200 TP_ARGS(sp)
201);
202
203TRACE_EVENT(
204 mark_mmio_spte,
205 TP_PROTO(u64 *sptep, gfn_t gfn, unsigned access, unsigned int gen),
206 TP_ARGS(sptep, gfn, access, gen),
207
208 TP_STRUCT__entry(
209 __field(void *, sptep)
210 __field(gfn_t, gfn)
211 __field(unsigned, access)
212 __field(unsigned int, gen)
213 ),
214
215 TP_fast_assign(
216 __entry->sptep = sptep;
217 __entry->gfn = gfn;
218 __entry->access = access;
219 __entry->gen = gen;
220 ),
221
222 TP_printk("sptep:%p gfn %llx access %x gen %x", __entry->sptep,
223 __entry->gfn, __entry->access, __entry->gen)
224);
225
226TRACE_EVENT(
227 handle_mmio_page_fault,
228 TP_PROTO(u64 addr, gfn_t gfn, unsigned access),
229 TP_ARGS(addr, gfn, access),
230
231 TP_STRUCT__entry(
232 __field(u64, addr)
233 __field(gfn_t, gfn)
234 __field(unsigned, access)
235 ),
236
237 TP_fast_assign(
238 __entry->addr = addr;
239 __entry->gfn = gfn;
240 __entry->access = access;
241 ),
242
243 TP_printk("addr:%llx gfn %llx access %x", __entry->addr, __entry->gfn,
244 __entry->access)
245);
246
247#define __spte_satisfied(__spte) \
248 (__entry->retry && is_writable_pte(__entry->__spte))
249
250TRACE_EVENT(
251 fast_page_fault,
252 TP_PROTO(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code,
253 u64 *sptep, u64 old_spte, bool retry),
254 TP_ARGS(vcpu, gva, error_code, sptep, old_spte, retry),
255
256 TP_STRUCT__entry(
257 __field(int, vcpu_id)
258 __field(gva_t, gva)
259 __field(u32, error_code)
260 __field(u64 *, sptep)
261 __field(u64, old_spte)
262 __field(u64, new_spte)
263 __field(bool, retry)
264 ),
265
266 TP_fast_assign(
267 __entry->vcpu_id = vcpu->vcpu_id;
268 __entry->gva = gva;
269 __entry->error_code = error_code;
270 __entry->sptep = sptep;
271 __entry->old_spte = old_spte;
272 __entry->new_spte = *sptep;
273 __entry->retry = retry;
274 ),
275
276 TP_printk("vcpu %d gva %lx error_code %s sptep %p old %#llx"
277 " new %llx spurious %d fixed %d", __entry->vcpu_id,
278 __entry->gva, __print_flags(__entry->error_code, "|",
279 kvm_mmu_trace_pferr_flags), __entry->sptep,
280 __entry->old_spte, __entry->new_spte,
281 __spte_satisfied(old_spte), __spte_satisfied(new_spte)
282 )
283);
284
285TRACE_EVENT(
286 kvm_mmu_invalidate_zap_all_pages,
287 TP_PROTO(struct kvm *kvm),
288 TP_ARGS(kvm),
289
290 TP_STRUCT__entry(
291 __field(unsigned long, mmu_valid_gen)
292 __field(unsigned int, mmu_used_pages)
293 ),
294
295 TP_fast_assign(
296 __entry->mmu_valid_gen = kvm->arch.mmu_valid_gen;
297 __entry->mmu_used_pages = kvm->arch.n_used_mmu_pages;
298 ),
299
300 TP_printk("kvm-mmu-valid-gen %lx used_pages %x",
301 __entry->mmu_valid_gen, __entry->mmu_used_pages
302 )
303);
304
305
306TRACE_EVENT(
307 check_mmio_spte,
308 TP_PROTO(u64 spte, unsigned int kvm_gen, unsigned int spte_gen),
309 TP_ARGS(spte, kvm_gen, spte_gen),
310
311 TP_STRUCT__entry(
312 __field(unsigned int, kvm_gen)
313 __field(unsigned int, spte_gen)
314 __field(u64, spte)
315 ),
316
317 TP_fast_assign(
318 __entry->kvm_gen = kvm_gen;
319 __entry->spte_gen = spte_gen;
320 __entry->spte = spte;
321 ),
322
323 TP_printk("spte %llx kvm_gen %x spte-gen %x valid %d", __entry->spte,
324 __entry->kvm_gen, __entry->spte_gen,
325 __entry->kvm_gen == __entry->spte_gen
326 )
327);
328#endif /* _TRACE_KVMMMU_H */
329
330#undef TRACE_INCLUDE_PATH
331#define TRACE_INCLUDE_PATH .
332#undef TRACE_INCLUDE_FILE
333#define TRACE_INCLUDE_FILE mmutrace
334
335/* This part must be outside protection */
336#include <trace/define_trace.h>