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