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  1#if !defined(_TRACE_KVMMMU_H) || defined(TRACE_HEADER_MULTI_READ)
  2#define _TRACE_KVMMMU_H
  3
  4#include <linux/tracepoint.h>
  5#include <linux/ftrace_event.h>
  6
  7#undef TRACE_SYSTEM
  8#define TRACE_SYSTEM kvmmmu
  9
 10#define KVM_MMU_PAGE_FIELDS			\
 11	__field(unsigned long, mmu_valid_gen)	\
 12	__field(__u64, gfn)			\
 13	__field(__u32, role)			\
 14	__field(__u32, root_count)		\
 15	__field(bool, unsync)
 16
 17#define KVM_MMU_PAGE_ASSIGN(sp)				\
 18	__entry->mmu_valid_gen = sp->mmu_valid_gen;	\
 19	__entry->gfn = sp->gfn;				\
 20	__entry->role = sp->role.word;			\
 21	__entry->root_count = sp->root_count;		\
 22	__entry->unsync = sp->unsync;
 23
 24#define KVM_MMU_PAGE_PRINTK() ({				        \
 25	const char *ret = p->buffer + p->len;				\
 26	static const char *access_str[] = {			        \
 27		"---", "--x", "w--", "w-x", "-u-", "-ux", "wu-", "wux"  \
 28	};							        \
 29	union kvm_mmu_page_role role;				        \
 30								        \
 31	role.word = __entry->role;					\
 32									\
 33	trace_seq_printf(p, "sp gen %lx gfn %llx %u%s q%u%s %s%s"	\
 34			 " %snxe root %u %s%c",	__entry->mmu_valid_gen,	\
 35			 __entry->gfn, role.level,			\
 36			 role.cr4_pae ? " pae" : "",			\
 37			 role.quadrant,					\
 38			 role.direct ? " direct" : "",			\
 39			 access_str[role.access],			\
 40			 role.invalid ? " invalid" : "",		\
 41			 role.nxe ? "" : "!",				\
 42			 __entry->root_count,				\
 43			 __entry->unsync ? "unsync" : "sync", 0);	\
 44	ret;								\
 45		})
 46
 47#define kvm_mmu_trace_pferr_flags       \
 48	{ PFERR_PRESENT_MASK, "P" },	\
 49	{ PFERR_WRITE_MASK, "W" },	\
 50	{ PFERR_USER_MASK, "U" },	\
 51	{ PFERR_RSVD_MASK, "RSVD" },	\
 52	{ PFERR_FETCH_MASK, "F" }
 53
 54/*
 55 * A pagetable walk has started
 56 */
 57TRACE_EVENT(
 58	kvm_mmu_pagetable_walk,
 59	TP_PROTO(u64 addr, u32 pferr),
 60	TP_ARGS(addr, pferr),
 61
 62	TP_STRUCT__entry(
 63		__field(__u64, addr)
 64		__field(__u32, pferr)
 65	),
 66
 67	TP_fast_assign(
 68		__entry->addr = addr;
 69		__entry->pferr = pferr;
 70	),
 71
 72	TP_printk("addr %llx pferr %x %s", __entry->addr, __entry->pferr,
 73		  __print_flags(__entry->pferr, "|", kvm_mmu_trace_pferr_flags))
 74);
 75
 76
 77/* We just walked a paging element */
 78TRACE_EVENT(
 79	kvm_mmu_paging_element,
 80	TP_PROTO(u64 pte, int level),
 81	TP_ARGS(pte, level),
 82
 83	TP_STRUCT__entry(
 84		__field(__u64, pte)
 85		__field(__u32, level)
 86		),
 87
 88	TP_fast_assign(
 89		__entry->pte = pte;
 90		__entry->level = level;
 91		),
 92
 93	TP_printk("pte %llx level %u", __entry->pte, __entry->level)
 94);
 95
 96DECLARE_EVENT_CLASS(kvm_mmu_set_bit_class,
 97
 98	TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
 99
100	TP_ARGS(table_gfn, index, size),
101
102	TP_STRUCT__entry(
103		__field(__u64, gpa)
104	),
105
106	TP_fast_assign(
107		__entry->gpa = ((u64)table_gfn << PAGE_SHIFT)
108				+ index * size;
109		),
110
111	TP_printk("gpa %llx", __entry->gpa)
112);
113
114/* We set a pte accessed bit */
115DEFINE_EVENT(kvm_mmu_set_bit_class, kvm_mmu_set_accessed_bit,
116
117	TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
118
119	TP_ARGS(table_gfn, index, size)
120);
121
122/* We set a pte dirty bit */
123DEFINE_EVENT(kvm_mmu_set_bit_class, kvm_mmu_set_dirty_bit,
124
125	TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
126
127	TP_ARGS(table_gfn, index, size)
128);
129
130TRACE_EVENT(
131	kvm_mmu_walker_error,
132	TP_PROTO(u32 pferr),
133	TP_ARGS(pferr),
134
135	TP_STRUCT__entry(
136		__field(__u32, pferr)
137		),
138
139	TP_fast_assign(
140		__entry->pferr = pferr;
141		),
142
143	TP_printk("pferr %x %s", __entry->pferr,
144		  __print_flags(__entry->pferr, "|", kvm_mmu_trace_pferr_flags))
145);
146
147TRACE_EVENT(
148	kvm_mmu_get_page,
149	TP_PROTO(struct kvm_mmu_page *sp, bool created),
150	TP_ARGS(sp, created),
151
152	TP_STRUCT__entry(
153		KVM_MMU_PAGE_FIELDS
154		__field(bool, created)
155		),
156
157	TP_fast_assign(
158		KVM_MMU_PAGE_ASSIGN(sp)
159		__entry->created = created;
160		),
161
162	TP_printk("%s %s", KVM_MMU_PAGE_PRINTK(),
163		  __entry->created ? "new" : "existing")
164);
165
166DECLARE_EVENT_CLASS(kvm_mmu_page_class,
167
168	TP_PROTO(struct kvm_mmu_page *sp),
169	TP_ARGS(sp),
170
171	TP_STRUCT__entry(
172		KVM_MMU_PAGE_FIELDS
173	),
174
175	TP_fast_assign(
176		KVM_MMU_PAGE_ASSIGN(sp)
177	),
178
179	TP_printk("%s", KVM_MMU_PAGE_PRINTK())
180);
181
182DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_sync_page,
183	TP_PROTO(struct kvm_mmu_page *sp),
184
185	TP_ARGS(sp)
186);
187
188DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_unsync_page,
189	TP_PROTO(struct kvm_mmu_page *sp),
190
191	TP_ARGS(sp)
192);
193
194DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_prepare_zap_page,
195	TP_PROTO(struct kvm_mmu_page *sp),
196
197	TP_ARGS(sp)
198);
199
200TRACE_EVENT(
201	mark_mmio_spte,
202	TP_PROTO(u64 *sptep, gfn_t gfn, unsigned access, unsigned int gen),
203	TP_ARGS(sptep, gfn, access, gen),
204
205	TP_STRUCT__entry(
206		__field(void *, sptep)
207		__field(gfn_t, gfn)
208		__field(unsigned, access)
209		__field(unsigned int, gen)
210	),
211
212	TP_fast_assign(
213		__entry->sptep = sptep;
214		__entry->gfn = gfn;
215		__entry->access = access;
216		__entry->gen = gen;
217	),
218
219	TP_printk("sptep:%p gfn %llx access %x gen %x", __entry->sptep,
220		  __entry->gfn, __entry->access, __entry->gen)
221);
222
223TRACE_EVENT(
224	handle_mmio_page_fault,
225	TP_PROTO(u64 addr, gfn_t gfn, unsigned access),
226	TP_ARGS(addr, gfn, access),
227
228	TP_STRUCT__entry(
229		__field(u64, addr)
230		__field(gfn_t, gfn)
231		__field(unsigned, access)
232	),
233
234	TP_fast_assign(
235		__entry->addr = addr;
236		__entry->gfn = gfn;
237		__entry->access = access;
238	),
239
240	TP_printk("addr:%llx gfn %llx access %x", __entry->addr, __entry->gfn,
241		  __entry->access)
242);
243
244#define __spte_satisfied(__spte)				\
245	(__entry->retry && is_writable_pte(__entry->__spte))
246
247TRACE_EVENT(
248	fast_page_fault,
249	TP_PROTO(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code,
250		 u64 *sptep, u64 old_spte, bool retry),
251	TP_ARGS(vcpu, gva, error_code, sptep, old_spte, retry),
252
253	TP_STRUCT__entry(
254		__field(int, vcpu_id)
255		__field(gva_t, gva)
256		__field(u32, error_code)
257		__field(u64 *, sptep)
258		__field(u64, old_spte)
259		__field(u64, new_spte)
260		__field(bool, retry)
261	),
262
263	TP_fast_assign(
264		__entry->vcpu_id = vcpu->vcpu_id;
265		__entry->gva = gva;
266		__entry->error_code = error_code;
267		__entry->sptep = sptep;
268		__entry->old_spte = old_spte;
269		__entry->new_spte = *sptep;
270		__entry->retry = retry;
271	),
272
273	TP_printk("vcpu %d gva %lx error_code %s sptep %p old %#llx"
274		  " new %llx spurious %d fixed %d", __entry->vcpu_id,
275		  __entry->gva, __print_flags(__entry->error_code, "|",
276		  kvm_mmu_trace_pferr_flags), __entry->sptep,
277		  __entry->old_spte, __entry->new_spte,
278		  __spte_satisfied(old_spte), __spte_satisfied(new_spte)
279	)
280);
281
282TRACE_EVENT(
283	kvm_mmu_invalidate_zap_all_pages,
284	TP_PROTO(struct kvm *kvm),
285	TP_ARGS(kvm),
286
287	TP_STRUCT__entry(
288		__field(unsigned long, mmu_valid_gen)
289		__field(unsigned int, mmu_used_pages)
290	),
291
292	TP_fast_assign(
293		__entry->mmu_valid_gen = kvm->arch.mmu_valid_gen;
294		__entry->mmu_used_pages = kvm->arch.n_used_mmu_pages;
295	),
296
297	TP_printk("kvm-mmu-valid-gen %lx used_pages %x",
298		  __entry->mmu_valid_gen, __entry->mmu_used_pages
299	)
300);
301
302
303TRACE_EVENT(
304	check_mmio_spte,
305	TP_PROTO(u64 spte, unsigned int kvm_gen, unsigned int spte_gen),
306	TP_ARGS(spte, kvm_gen, spte_gen),
307
308	TP_STRUCT__entry(
309		__field(unsigned int, kvm_gen)
310		__field(unsigned int, spte_gen)
311		__field(u64, spte)
312	),
313
314	TP_fast_assign(
315		__entry->kvm_gen = kvm_gen;
316		__entry->spte_gen = spte_gen;
317		__entry->spte = spte;
318	),
319
320	TP_printk("spte %llx kvm_gen %x spte-gen %x valid %d", __entry->spte,
321		  __entry->kvm_gen, __entry->spte_gen,
322		  __entry->kvm_gen == __entry->spte_gen
323	)
324);
325#endif /* _TRACE_KVMMMU_H */
326
327#undef TRACE_INCLUDE_PATH
328#define TRACE_INCLUDE_PATH .
329#undef TRACE_INCLUDE_FILE
330#define TRACE_INCLUDE_FILE mmutrace
331
332/* This part must be outside protection */
333#include <trace/define_trace.h>