arch/loongarch/kvm/trace.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) 2020-2023 Loongson Technology Corporation Limited
   4  */
   5
   6 #if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
   7 #define _TRACE_KVM_H
   8
   9 #include <linux/tracepoint.h>
  10 #include <asm/kvm_csr.h>
  11
  12 #undef  TRACE_SYSTEM
  13 #define TRACE_SYSTEM    kvm
  14
  15 /*
  16  * Tracepoints for VM enters
  17  */
  18 DECLARE_EVENT_CLASS(kvm_transition,
  19         TP_PROTO(struct kvm_vcpu *vcpu),
  20         TP_ARGS(vcpu),
  21         TP_STRUCT__entry(
  22                 __field(unsigned long, pc)
  23         ),
  24
  25         TP_fast_assign(
  26                 __entry->pc = vcpu->arch.pc;
  27         ),
  28
  29         TP_printk("PC: 0x%08lx", __entry->pc)
  30 );
  31
  32 DEFINE_EVENT(kvm_transition, kvm_enter,
  33              TP_PROTO(struct kvm_vcpu *vcpu),
  34              TP_ARGS(vcpu));
  35
  36 DEFINE_EVENT(kvm_transition, kvm_reenter,
  37              TP_PROTO(struct kvm_vcpu *vcpu),
  38              TP_ARGS(vcpu));
  39
  40 DEFINE_EVENT(kvm_transition, kvm_out,
  41              TP_PROTO(struct kvm_vcpu *vcpu),
  42              TP_ARGS(vcpu));
  43
  44 /* Further exit reasons */
  45 #define KVM_TRACE_EXIT_IDLE             64
  46 #define KVM_TRACE_EXIT_CACHE            65
  47
  48 /* Tracepoints for VM exits */
  49 #define kvm_trace_symbol_exit_types                     \
  50         { KVM_TRACE_EXIT_IDLE,          "IDLE" },       \
  51         { KVM_TRACE_EXIT_CACHE,         "CACHE" }
  52
  53 DECLARE_EVENT_CLASS(kvm_exit,
  54             TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason),
  55             TP_ARGS(vcpu, reason),
  56             TP_STRUCT__entry(
  57                         __field(unsigned long, pc)
  58                         __field(unsigned int, reason)
  59             ),
  60
  61             TP_fast_assign(
  62                         __entry->pc = vcpu->arch.pc;
  63                         __entry->reason = reason;
  64             ),
  65
  66             TP_printk("[%s]PC: 0x%08lx",
  67                       __print_symbolic(__entry->reason,
  68                                        kvm_trace_symbol_exit_types),
  69                       __entry->pc)
  70 );
  71
  72 DEFINE_EVENT(kvm_exit, kvm_exit_idle,
  73              TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason),
  74              TP_ARGS(vcpu, reason));
  75
  76 DEFINE_EVENT(kvm_exit, kvm_exit_cache,
  77              TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason),
  78              TP_ARGS(vcpu, reason));
  79
  80 DEFINE_EVENT(kvm_exit, kvm_exit,
  81              TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason),
  82              TP_ARGS(vcpu, reason));
  83
  84 TRACE_EVENT(kvm_exit_gspr,
  85             TP_PROTO(struct kvm_vcpu *vcpu, unsigned int inst_word),
  86             TP_ARGS(vcpu, inst_word),
  87             TP_STRUCT__entry(
  88                         __field(unsigned int, inst_word)
  89             ),
  90
  91             TP_fast_assign(
  92                         __entry->inst_word = inst_word;
  93             ),
  94
  95             TP_printk("Inst word: 0x%08x", __entry->inst_word)
  96 );
  97
  98 #define KVM_TRACE_AUX_SAVE              0
  99 #define KVM_TRACE_AUX_RESTORE           1
 100 #define KVM_TRACE_AUX_ENABLE            2
 101 #define KVM_TRACE_AUX_DISABLE           3
 102 #define KVM_TRACE_AUX_DISCARD           4
 103
 104 #define KVM_TRACE_AUX_FPU               1
 105
 106 #define kvm_trace_symbol_aux_op                         \
 107         { KVM_TRACE_AUX_SAVE,           "save" },       \
 108         { KVM_TRACE_AUX_RESTORE,        "restore" },    \
 109         { KVM_TRACE_AUX_ENABLE,         "enable" },     \
 110         { KVM_TRACE_AUX_DISABLE,        "disable" },    \
 111         { KVM_TRACE_AUX_DISCARD,        "discard" }
 112
 113 #define kvm_trace_symbol_aux_state                      \
 114         { KVM_TRACE_AUX_FPU,     "FPU" }
 115
 116 TRACE_EVENT(kvm_aux,
 117             TP_PROTO(struct kvm_vcpu *vcpu, unsigned int op,
 118                      unsigned int state),
 119             TP_ARGS(vcpu, op, state),
 120             TP_STRUCT__entry(
 121                         __field(unsigned long, pc)
 122                         __field(u8, op)
 123                         __field(u8, state)
 124             ),
 125
 126             TP_fast_assign(
 127                         __entry->pc = vcpu->arch.pc;
 128                         __entry->op = op;
 129                         __entry->state = state;
 130             ),
 131
 132             TP_printk("%s %s PC: 0x%08lx",
 133                       __print_symbolic(__entry->op,
 134                                        kvm_trace_symbol_aux_op),
 135                       __print_symbolic(__entry->state,
 136                                        kvm_trace_symbol_aux_state),
 137                       __entry->pc)
 138 );
 139
 140 TRACE_EVENT(kvm_vpid_change,
 141             TP_PROTO(struct kvm_vcpu *vcpu, unsigned long vpid),
 142             TP_ARGS(vcpu, vpid),
 143             TP_STRUCT__entry(
 144                         __field(unsigned long, vpid)
 145             ),
 146
 147             TP_fast_assign(
 148                         __entry->vpid = vpid;
 149             ),
 150
 151             TP_printk("VPID: 0x%08lx", __entry->vpid)
 152 );
 153
 154 #endif /* _TRACE_KVM_H */
 155
 156 #undef TRACE_INCLUDE_PATH
 157 #define TRACE_INCLUDE_PATH ../../arch/loongarch/kvm
 158 #undef TRACE_INCLUDE_FILE
 159 #define TRACE_INCLUDE_FILE trace
 160
 161 /* This part must be outside protection */
 162 #include <trace/define_trace.h>