instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h

   1 #if !defined(LTTNG_TRACE_KVM_MMU_H) || defined(TRACE_HEADER_MULTI_READ)
   2 #define LTTNG_TRACE_KVM_MMU_H
   3
   4 #include <probes/lttng-tracepoint-event.h>
   5 #include <linux/version.h>
   6
   7 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
   8 #include <linux/trace_events.h>
   9 #else /* if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
  10 #include <linux/ftrace_event.h>
  11 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
  12
  13 #undef TRACE_SYSTEM
  14 #define TRACE_SYSTEM kvm_mmu
  15
  16 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,1,0))
  17
  18 #define LTTNG_KVM_MMU_PAGE_FIELDS \
  19         ctf_integer(__u64, gfn, (sp)->gfn) \
  20         ctf_integer(__u32, role, (sp)->role.word) \
  21         ctf_integer(__u32, root_count, (sp)->root_count) \
  22         ctf_integer(bool, unsync, (sp)->unsync)
  23
  24 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0))
  25
  26 #define LTTNG_KVM_MMU_PAGE_FIELDS \
  27         ctf_integer(unsigned long, mmu_valid_gen, (sp)->mmu_valid_gen) \
  28         ctf_integer(__u64, gfn, (sp)->gfn) \
  29         ctf_integer(__u32, role, (sp)->role.word) \
  30         ctf_integer(__u32, root_count, (sp)->root_count) \
  31         ctf_integer(bool, unsync, (sp)->unsync)
  32
  33 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)) */
  34
  35 #define LTTNG_KVM_MMU_PAGE_FIELDS \
  36         ctf_integer(__u64, gfn, (sp)->gfn) \
  37         ctf_integer(__u32, role, (sp)->role.word) \
  38         ctf_integer(__u32, root_count, (sp)->root_count) \
  39         ctf_integer(bool, unsync, (sp)->unsync)
  40
  41 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)) */
  42
  43 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0))
  44 /*
  45  * A pagetable walk has started
  46  */
  47 LTTNG_TRACEPOINT_EVENT(
  48         kvm_mmu_pagetable_walk,
  49         TP_PROTO(u64 addr, u32 pferr),
  50         TP_ARGS(addr, pferr),
  51
  52         TP_FIELDS(
  53                 ctf_integer(__u64, addr, addr)
  54                 ctf_integer(__u32, pferr, pferr)
  55         )
  56 )
  57 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)) */
  58 /*
  59  * A pagetable walk has started
  60  */
  61 LTTNG_TRACEPOINT_EVENT(
  62         kvm_mmu_pagetable_walk,
  63         TP_PROTO(u64 addr, int write_fault, int user_fault, int fetch_fault),
  64         TP_ARGS(addr, write_fault, user_fault, fetch_fault),
  65
  66         TP_FIELDS(
  67                 ctf_integer(__u64, addr, addr)
  68                 ctf_integer(__u32, pferr,
  69                         (!!write_fault << 1) | (!!user_fault << 2)
  70                         | (!!fetch_fault << 4))
  71         )
  72 )
  73 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)) */
  74
  75 /* We just walked a paging element */
  76 LTTNG_TRACEPOINT_EVENT(
  77         kvm_mmu_paging_element,
  78         TP_PROTO(u64 pte, int level),
  79         TP_ARGS(pte, level),
  80
  81         TP_FIELDS(
  82                 ctf_integer(__u64, pte, pte)
  83                 ctf_integer(__u32, level, level)
  84         )
  85 )
  86
  87 LTTNG_TRACEPOINT_EVENT_CLASS(kvm_mmu_set_bit_class,
  88
  89         TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
  90
  91         TP_ARGS(table_gfn, index, size),
  92
  93         TP_FIELDS(
  94                 ctf_integer(__u64, gpa,
  95                         ((u64)table_gfn << PAGE_SHIFT) + index * size)
  96         )
  97 )
  98
  99 /* We set a pte accessed bit */
 100 LTTNG_TRACEPOINT_EVENT_INSTANCE(kvm_mmu_set_bit_class, kvm_mmu_set_accessed_bit,
 101
 102         TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
 103
 104         TP_ARGS(table_gfn, index, size)
 105 )
 106
 107 /* We set a pte dirty bit */
 108 LTTNG_TRACEPOINT_EVENT_INSTANCE(kvm_mmu_set_bit_class, kvm_mmu_set_dirty_bit,
 109
 110         TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
 111
 112         TP_ARGS(table_gfn, index, size)
 113 )
 114
 115 LTTNG_TRACEPOINT_EVENT(
 116         kvm_mmu_walker_error,
 117         TP_PROTO(u32 pferr),
 118         TP_ARGS(pferr),
 119
 120         TP_FIELDS(
 121                 ctf_integer(__u32, pferr, pferr)
 122         )
 123 )
 124
 125 LTTNG_TRACEPOINT_EVENT(
 126         kvm_mmu_get_page,
 127         TP_PROTO(struct kvm_mmu_page *sp, bool created),
 128         TP_ARGS(sp, created),
 129
 130         TP_FIELDS(
 131                 LTTNG_KVM_MMU_PAGE_FIELDS
 132                 ctf_integer(bool, created, created)
 133         )
 134 )
 135
 136 LTTNG_TRACEPOINT_EVENT_CLASS(kvm_mmu_page_class,
 137
 138         TP_PROTO(struct kvm_mmu_page *sp),
 139         TP_ARGS(sp),
 140
 141         TP_FIELDS(
 142                 LTTNG_KVM_MMU_PAGE_FIELDS
 143         )
 144 )
 145
 146 LTTNG_TRACEPOINT_EVENT_INSTANCE(kvm_mmu_page_class, kvm_mmu_sync_page,
 147         TP_PROTO(struct kvm_mmu_page *sp),
 148
 149         TP_ARGS(sp)
 150 )
 151
 152 LTTNG_TRACEPOINT_EVENT_INSTANCE(kvm_mmu_page_class, kvm_mmu_unsync_page,
 153         TP_PROTO(struct kvm_mmu_page *sp),
 154
 155         TP_ARGS(sp)
 156 )
 157
 158 LTTNG_TRACEPOINT_EVENT_INSTANCE(kvm_mmu_page_class, kvm_mmu_prepare_zap_page,
 159         TP_PROTO(struct kvm_mmu_page *sp),
 160
 161         TP_ARGS(sp)
 162 )
 163
 164 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0))
 165
 166 LTTNG_TRACEPOINT_EVENT_MAP(
 167         mark_mmio_spte,
 168
 169         kvm_mmu_mark_mmio_spte,
 170
 171         TP_PROTO(u64 *sptep, gfn_t gfn, unsigned access, unsigned int gen),
 172         TP_ARGS(sptep, gfn, access, gen),
 173
 174         TP_FIELDS(
 175                 ctf_integer_hex(void *, sptep, sptep)
 176                 ctf_integer(gfn_t, gfn, gfn)
 177                 ctf_integer(unsigned, access, access)
 178                 ctf_integer(unsigned int, gen, gen)
 179         )
 180 )
 181
 182 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)) */
 183
 184 LTTNG_TRACEPOINT_EVENT_MAP(
 185         mark_mmio_spte,
 186
 187         kvm_mmu_mark_mmio_spte,
 188
 189         TP_PROTO(u64 *sptep, gfn_t gfn, unsigned access),
 190         TP_ARGS(sptep, gfn, access),
 191
 192         TP_FIELDS(
 193                 ctf_integer_hex(void *, sptep, sptep)
 194                 ctf_integer(gfn_t, gfn, gfn)
 195                 ctf_integer(unsigned, access, access)
 196         )
 197 )
 198
 199 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)) */
 200
 201 LTTNG_TRACEPOINT_EVENT_MAP(
 202         handle_mmio_page_fault,
 203
 204         kvm_mmu_handle_mmio_page_fault,
 205
 206         TP_PROTO(u64 addr, gfn_t gfn, unsigned access),
 207         TP_ARGS(addr, gfn, access),
 208
 209         TP_FIELDS(
 210                 ctf_integer(u64, addr, addr)
 211                 ctf_integer(gfn_t, gfn, gfn)
 212                 ctf_integer(unsigned, access, access)
 213         )
 214 )
 215
 216 LTTNG_TRACEPOINT_EVENT_MAP(
 217         fast_page_fault,
 218
 219         kvm_mmu_fast_page_fault,
 220
 221         TP_PROTO(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code,
 222                  u64 *sptep, u64 old_spte, bool retry),
 223         TP_ARGS(vcpu, gva, error_code, sptep, old_spte, retry),
 224
 225         TP_FIELDS(
 226                 ctf_integer(int, vcpu_id, vcpu->vcpu_id)
 227                 ctf_integer(gva_t, gva, gva)
 228                 ctf_integer(u32, error_code, error_code)
 229                 ctf_integer_hex(u64 *, sptep, sptep)
 230                 ctf_integer(u64, old_spte, old_spte)
 231                 ctf_integer(u64, new_spte, *sptep)
 232                 ctf_integer(bool, retry, retry)
 233         )
 234 )
 235 #endif /* LTTNG_TRACE_KVM_MMU_H */
 236
 237 #undef TRACE_INCLUDE_PATH
 238 #define TRACE_INCLUDE_PATH instrumentation/events/lttng-module/arch/x86/kvm
 239 #undef TRACE_INCLUDE_FILE
 240 #define TRACE_INCLUDE_FILE mmutrace
 241
 242 /* This part must be outside protection */
 243 #include <probes/define_trace.h>