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

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #if !defined(LTTNG_TRACE_KVM_MMU_H) || defined(TRACE_HEADER_MULTI_READ)
   3 #define LTTNG_TRACE_KVM_MMU_H
   4
   5 #include <probes/lttng-tracepoint-event.h>
   6 #include <linux/version.h>
   7
   8 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
   9 #include <linux/trace_events.h>
  10 #else /* if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
  11 #include <linux/ftrace_event.h>
  12 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
  13
  14 #undef TRACE_SYSTEM
  15 #define TRACE_SYSTEM kvm_mmu
  16
  17 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0))
  18
  19 #define LTTNG_KVM_MMU_PAGE_FIELDS \
  20         ctf_integer(unsigned long, mmu_valid_gen, (sp)->mmu_valid_gen) \
  21         ctf_integer(__u64, gfn, (sp)->gfn) \
  22         ctf_integer(__u32, role, (sp)->role.word) \
  23         ctf_integer(__u32, root_count, (sp)->root_count) \
  24         ctf_integer(bool, unsync, (sp)->unsync)
  25
  26 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)) */
  27
  28 #define LTTNG_KVM_MMU_PAGE_FIELDS \
  29         ctf_integer(__u64, gfn, (sp)->gfn) \
  30         ctf_integer(__u32, role, (sp)->role.word) \
  31         ctf_integer(__u32, root_count, (sp)->root_count) \
  32         ctf_integer(bool, unsync, (sp)->unsync)
  33
  34 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)) */
  35
  36 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0))
  37 /*
  38  * A pagetable walk has started
  39  */
  40 LTTNG_TRACEPOINT_EVENT(
  41         kvm_mmu_pagetable_walk,
  42         TP_PROTO(u64 addr, u32 pferr),
  43         TP_ARGS(addr, pferr),
  44
  45         TP_FIELDS(
  46                 ctf_integer(__u64, addr, addr)
  47                 ctf_integer(__u32, pferr, pferr)
  48         )
  49 )
  50 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)) */
  51 /*
  52  * A pagetable walk has started
  53  */
  54 LTTNG_TRACEPOINT_EVENT(
  55         kvm_mmu_pagetable_walk,
  56         TP_PROTO(u64 addr, int write_fault, int user_fault, int fetch_fault),
  57         TP_ARGS(addr, write_fault, user_fault, fetch_fault),
  58
  59         TP_FIELDS(
  60                 ctf_integer(__u64, addr, addr)
  61                 ctf_integer(__u32, pferr,
  62                         (!!write_fault << 1) | (!!user_fault << 2)
  63                         | (!!fetch_fault << 4))
  64         )
  65 )
  66 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)) */
  67
  68 /* We just walked a paging element */
  69 LTTNG_TRACEPOINT_EVENT(
  70         kvm_mmu_paging_element,
  71         TP_PROTO(u64 pte, int level),
  72         TP_ARGS(pte, level),
  73
  74         TP_FIELDS(
  75                 ctf_integer(__u64, pte, pte)
  76                 ctf_integer(__u32, level, level)
  77         )
  78 )
  79
  80 LTTNG_TRACEPOINT_EVENT_CLASS(kvm_mmu_set_bit_class,
  81
  82         TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
  83
  84         TP_ARGS(table_gfn, index, size),
  85
  86         TP_FIELDS(
  87                 ctf_integer(__u64, gpa,
  88                         ((u64)table_gfn << PAGE_SHIFT) + index * size)
  89         )
  90 )
  91
  92 /* We set a pte accessed bit */
  93 LTTNG_TRACEPOINT_EVENT_INSTANCE(kvm_mmu_set_bit_class, kvm_mmu_set_accessed_bit,
  94
  95         TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
  96
  97         TP_ARGS(table_gfn, index, size)
  98 )
  99
 100 /* We set a pte dirty bit */
 101 LTTNG_TRACEPOINT_EVENT_INSTANCE(kvm_mmu_set_bit_class, kvm_mmu_set_dirty_bit,
 102
 103         TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
 104
 105         TP_ARGS(table_gfn, index, size)
 106 )
 107
 108 LTTNG_TRACEPOINT_EVENT(
 109         kvm_mmu_walker_error,
 110         TP_PROTO(u32 pferr),
 111         TP_ARGS(pferr),
 112
 113         TP_FIELDS(
 114                 ctf_integer(__u32, pferr, pferr)
 115         )
 116 )
 117
 118 LTTNG_TRACEPOINT_EVENT(
 119         kvm_mmu_get_page,
 120         TP_PROTO(struct kvm_mmu_page *sp, bool created),
 121         TP_ARGS(sp, created),
 122
 123         TP_FIELDS(
 124                 LTTNG_KVM_MMU_PAGE_FIELDS
 125                 ctf_integer(bool, created, created)
 126         )
 127 )
 128
 129 LTTNG_TRACEPOINT_EVENT_CLASS(kvm_mmu_page_class,
 130
 131         TP_PROTO(struct kvm_mmu_page *sp),
 132         TP_ARGS(sp),
 133
 134         TP_FIELDS(
 135                 LTTNG_KVM_MMU_PAGE_FIELDS
 136         )
 137 )
 138
 139 LTTNG_TRACEPOINT_EVENT_INSTANCE(kvm_mmu_page_class, kvm_mmu_sync_page,
 140         TP_PROTO(struct kvm_mmu_page *sp),
 141
 142         TP_ARGS(sp)
 143 )
 144
 145 LTTNG_TRACEPOINT_EVENT_INSTANCE(kvm_mmu_page_class, kvm_mmu_unsync_page,
 146         TP_PROTO(struct kvm_mmu_page *sp),
 147
 148         TP_ARGS(sp)
 149 )
 150
 151 LTTNG_TRACEPOINT_EVENT_INSTANCE(kvm_mmu_page_class, kvm_mmu_prepare_zap_page,
 152         TP_PROTO(struct kvm_mmu_page *sp),
 153
 154         TP_ARGS(sp)
 155 )
 156
 157 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0))
 158
 159 LTTNG_TRACEPOINT_EVENT_MAP(
 160         mark_mmio_spte,
 161
 162         kvm_mmu_mark_mmio_spte,
 163
 164         TP_PROTO(u64 *sptep, gfn_t gfn, unsigned access, unsigned int gen),
 165         TP_ARGS(sptep, gfn, access, gen),
 166
 167         TP_FIELDS(
 168                 ctf_integer_hex(void *, sptep, sptep)
 169                 ctf_integer(gfn_t, gfn, gfn)
 170                 ctf_integer(unsigned, access, access)
 171                 ctf_integer(unsigned int, gen, gen)
 172         )
 173 )
 174
 175 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)) */
 176
 177 LTTNG_TRACEPOINT_EVENT_MAP(
 178         mark_mmio_spte,
 179
 180         kvm_mmu_mark_mmio_spte,
 181
 182         TP_PROTO(u64 *sptep, gfn_t gfn, unsigned access),
 183         TP_ARGS(sptep, gfn, access),
 184
 185         TP_FIELDS(
 186                 ctf_integer_hex(void *, sptep, sptep)
 187                 ctf_integer(gfn_t, gfn, gfn)
 188                 ctf_integer(unsigned, access, access)
 189         )
 190 )
 191
 192 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)) */
 193
 194 LTTNG_TRACEPOINT_EVENT_MAP(
 195         handle_mmio_page_fault,
 196
 197         kvm_mmu_handle_mmio_page_fault,
 198
 199         TP_PROTO(u64 addr, gfn_t gfn, unsigned access),
 200         TP_ARGS(addr, gfn, access),
 201
 202         TP_FIELDS(
 203                 ctf_integer(u64, addr, addr)
 204                 ctf_integer(gfn_t, gfn, gfn)
 205                 ctf_integer(unsigned, access, access)
 206         )
 207 )
 208
 209 LTTNG_TRACEPOINT_EVENT_MAP(
 210         fast_page_fault,
 211
 212         kvm_mmu_fast_page_fault,
 213
 214         TP_PROTO(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code,
 215                  u64 *sptep, u64 old_spte, bool retry),
 216         TP_ARGS(vcpu, gva, error_code, sptep, old_spte, retry),
 217
 218         TP_FIELDS(
 219                 ctf_integer(int, vcpu_id, vcpu->vcpu_id)
 220                 ctf_integer(gva_t, gva, gva)
 221                 ctf_integer(u32, error_code, error_code)
 222                 ctf_integer_hex(u64 *, sptep, sptep)
 223                 ctf_integer(u64, old_spte, old_spte)
 224                 ctf_integer(u64, new_spte, *sptep)
 225                 ctf_integer(bool, retry, retry)
 226         )
 227 )
 228 #endif /* LTTNG_TRACE_KVM_MMU_H */
 229
 230 #undef TRACE_INCLUDE_PATH
 231 #define TRACE_INCLUDE_PATH instrumentation/events/lttng-module/arch/x86/kvm
 232 #undef TRACE_INCLUDE_FILE
 233 #define TRACE_INCLUDE_FILE mmutrace
 234
 235 /* This part must be outside protection */
 236 #include <probes/define_trace.h>