1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
#if !defined(_TRACE_KVMMMU_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_KVMMMU_H
#include <linux/tracepoint.h>
#include <linux/ftrace_event.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM kvmmmu
#define KVM_MMU_PAGE_FIELDS \
__field(__u64, gfn) \
__field(__u32, role) \
__field(__u32, root_count) \
__field(bool, unsync)
#define KVM_MMU_PAGE_ASSIGN(sp) \
__entry->gfn = sp->gfn; \
__entry->role = sp->role.word; \
__entry->root_count = sp->root_count; \
__entry->unsync = sp->unsync;
#define KVM_MMU_PAGE_PRINTK() ({ \
const char *ret = p->buffer + p->len; \
static const char *access_str[] = { \
"---", "--x", "w--", "w-x", "-u-", "-ux", "wu-", "wux" \
}; \
union kvm_mmu_page_role role; \
\
role.word = __entry->role; \
\
trace_seq_printf(p, "sp gfn %llx %u%s q%u%s %s%s" \
" %snxe root %u %s%c", \
__entry->gfn, role.level, \
role.cr4_pae ? " pae" : "", \
role.quadrant, \
role.direct ? " direct" : "", \
access_str[role.access], \
role.invalid ? " invalid" : "", \
role.nxe ? "" : "!", \
__entry->root_count, \
__entry->unsync ? "unsync" : "sync", 0); \
ret; \
})
#define kvm_mmu_trace_pferr_flags \
{ PFERR_PRESENT_MASK, "P" }, \
{ PFERR_WRITE_MASK, "W" }, \
{ PFERR_USER_MASK, "U" }, \
{ PFERR_RSVD_MASK, "RSVD" }, \
{ PFERR_FETCH_MASK, "F" }
/*
* A pagetable walk has started
*/
TRACE_EVENT(
kvm_mmu_pagetable_walk,
TP_PROTO(u64 addr, int write_fault, int user_fault, int fetch_fault),
TP_ARGS(addr, write_fault, user_fault, fetch_fault),
TP_STRUCT__entry(
__field(__u64, addr)
__field(__u32, pferr)
),
TP_fast_assign(
__entry->addr = addr;
__entry->pferr = (!!write_fault << 1) | (!!user_fault << 2)
| (!!fetch_fault << 4);
),
TP_printk("addr %llx pferr %x %s", __entry->addr, __entry->pferr,
__print_flags(__entry->pferr, "|", kvm_mmu_trace_pferr_flags))
);
/* We just walked a paging element */
TRACE_EVENT(
kvm_mmu_paging_element,
TP_PROTO(u64 pte, int level),
TP_ARGS(pte, level),
TP_STRUCT__entry(
__field(__u64, pte)
__field(__u32, level)
),
TP_fast_assign(
__entry->pte = pte;
__entry->level = level;
),
TP_printk("pte %llx level %u", __entry->pte, __entry->level)
);
DECLARE_EVENT_CLASS(kvm_mmu_set_bit_class,
TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
TP_ARGS(table_gfn, index, size),
TP_STRUCT__entry(
__field(__u64, gpa)
),
TP_fast_assign(
__entry->gpa = ((u64)table_gfn << PAGE_SHIFT)
+ index * size;
),
TP_printk("gpa %llx", __entry->gpa)
);
/* We set a pte accessed bit */
DEFINE_EVENT(kvm_mmu_set_bit_class, kvm_mmu_set_accessed_bit,
TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
TP_ARGS(table_gfn, index, size)
);
/* We set a pte dirty bit */
DEFINE_EVENT(kvm_mmu_set_bit_class, kvm_mmu_set_dirty_bit,
TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
TP_ARGS(table_gfn, index, size)
);
TRACE_EVENT(
kvm_mmu_walker_error,
TP_PROTO(u32 pferr),
TP_ARGS(pferr),
TP_STRUCT__entry(
__field(__u32, pferr)
),
TP_fast_assign(
__entry->pferr = pferr;
),
TP_printk("pferr %x %s", __entry->pferr,
__print_flags(__entry->pferr, "|", kvm_mmu_trace_pferr_flags))
);
TRACE_EVENT(
kvm_mmu_get_page,
TP_PROTO(struct kvm_mmu_page *sp, bool created),
TP_ARGS(sp, created),
TP_STRUCT__entry(
KVM_MMU_PAGE_FIELDS
__field(bool, created)
),
TP_fast_assign(
KVM_MMU_PAGE_ASSIGN(sp)
__entry->created = created;
),
TP_printk("%s %s", KVM_MMU_PAGE_PRINTK(),
__entry->created ? "new" : "existing")
);
DECLARE_EVENT_CLASS(kvm_mmu_page_class,
TP_PROTO(struct kvm_mmu_page *sp),
TP_ARGS(sp),
TP_STRUCT__entry(
KVM_MMU_PAGE_FIELDS
),
TP_fast_assign(
KVM_MMU_PAGE_ASSIGN(sp)
),
TP_printk("%s", KVM_MMU_PAGE_PRINTK())
);
DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_sync_page,
TP_PROTO(struct kvm_mmu_page *sp),
TP_ARGS(sp)
);
DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_unsync_page,
TP_PROTO(struct kvm_mmu_page *sp),
TP_ARGS(sp)
);
DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_prepare_zap_page,
TP_PROTO(struct kvm_mmu_page *sp),
TP_ARGS(sp)
);
#endif /* _TRACE_KVMMMU_H */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE mmutrace
/* This part must be outside protection */
#include <trace/define_trace.h>
|
