Quelle  trace.h   Sprache: C

// SPDX-License-Identifier: GPL-2.0
/*
 * Tracepoints for RISC-V KVM
 *
 * Copyright 2024 Beijing ESWIN Computing Technology Co., Ltd.
 *
 */
#if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_KVM_H

#include <linux/tracepoint.h>

#undef TRACE_SYSTEM
#define TRACE_SYSTEM kvm

TRACE_EVENT(kvm_entry,
 TP_PROTO(struct kvm_vcpu *vcpu),
 TP_ARGS(vcpu),

 TP_STRUCT__entry(
  __field(unsigned long, pc)
 ),

 TP_fast_assign(
  __entry->pc = vcpu->arch.guest_context.sepc;
 ),

 TP_printk("PC: 0x016%lx", __entry->pc)
);

TRACE_EVENT(kvm_exit,
 TP_PROTO(struct kvm_cpu_trap *trap),
 TP_ARGS(trap),

 TP_STRUCT__entry(
  __field(unsigned long, sepc)
  __field(unsigned long, scause)
  __field(unsigned long, stval)
  __field(unsigned long, htval)
  __field(unsigned long, htinst)
 ),

 TP_fast_assign(
  __entry->sepc  = trap->sepc;
  __entry->scause  = trap->scause;
  __entry->stval  = trap->stval;
  __entry->htval  = trap->htval;
  __entry->htinst  = trap->htinst;
 ),

 TP_printk("SEPC:0x%lx, SCAUSE:0x%lx, STVAL:0x%lx, HTVAL:0x%lx, HTINST:0x%lx",
  __entry->sepc,
  __entry->scause,
  __entry->stval,
  __entry->htval,
  __entry->htinst)
);

#endif /* _TRACE_RSICV_KVM_H */

#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace

/* This part must be outside protection */
#include <trace/define_trace.h>