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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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93258604ab
Add a few trace events for entering and coming out of guest mode, as well as re-entering it from a guest exit exception. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
199 lines
5.0 KiB
C
199 lines
5.0 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
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* Authors: Sanjay Lal <sanjayl@kymasys.com>
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*/
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#if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_KVM_H
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#include <linux/tracepoint.h>
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM kvm
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#define TRACE_INCLUDE_PATH .
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#define TRACE_INCLUDE_FILE trace
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/*
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* Tracepoints for VM enters
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*/
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TRACE_EVENT(kvm_enter,
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TP_PROTO(struct kvm_vcpu *vcpu),
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TP_ARGS(vcpu),
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TP_STRUCT__entry(
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__field(unsigned long, pc)
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),
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TP_fast_assign(
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__entry->pc = vcpu->arch.pc;
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),
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TP_printk("PC: 0x%08lx",
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__entry->pc)
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);
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TRACE_EVENT(kvm_reenter,
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TP_PROTO(struct kvm_vcpu *vcpu),
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TP_ARGS(vcpu),
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TP_STRUCT__entry(
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__field(unsigned long, pc)
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),
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TP_fast_assign(
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__entry->pc = vcpu->arch.pc;
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),
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TP_printk("PC: 0x%08lx",
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__entry->pc)
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);
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TRACE_EVENT(kvm_out,
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TP_PROTO(struct kvm_vcpu *vcpu),
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TP_ARGS(vcpu),
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TP_STRUCT__entry(
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__field(unsigned long, pc)
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),
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TP_fast_assign(
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__entry->pc = vcpu->arch.pc;
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),
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TP_printk("PC: 0x%08lx",
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__entry->pc)
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);
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/* The first 32 exit reasons correspond to Cause.ExcCode */
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#define KVM_TRACE_EXIT_INT 0
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#define KVM_TRACE_EXIT_TLBMOD 1
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#define KVM_TRACE_EXIT_TLBMISS_LD 2
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#define KVM_TRACE_EXIT_TLBMISS_ST 3
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#define KVM_TRACE_EXIT_ADDRERR_LD 4
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#define KVM_TRACE_EXIT_ADDRERR_ST 5
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#define KVM_TRACE_EXIT_SYSCALL 8
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#define KVM_TRACE_EXIT_BREAK_INST 9
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#define KVM_TRACE_EXIT_RESVD_INST 10
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#define KVM_TRACE_EXIT_COP_UNUSABLE 11
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#define KVM_TRACE_EXIT_TRAP_INST 13
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#define KVM_TRACE_EXIT_MSA_FPE 14
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#define KVM_TRACE_EXIT_FPE 15
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#define KVM_TRACE_EXIT_MSA_DISABLED 21
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/* Further exit reasons */
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#define KVM_TRACE_EXIT_WAIT 32
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#define KVM_TRACE_EXIT_CACHE 33
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#define KVM_TRACE_EXIT_SIGNAL 34
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/* Tracepoints for VM exits */
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#define kvm_trace_symbol_exit_types \
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{ KVM_TRACE_EXIT_INT, "Interrupt" }, \
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{ KVM_TRACE_EXIT_TLBMOD, "TLB Mod" }, \
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{ KVM_TRACE_EXIT_TLBMISS_LD, "TLB Miss (LD)" }, \
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{ KVM_TRACE_EXIT_TLBMISS_ST, "TLB Miss (ST)" }, \
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{ KVM_TRACE_EXIT_ADDRERR_LD, "Address Error (LD)" }, \
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{ KVM_TRACE_EXIT_ADDRERR_ST, "Address Err (ST)" }, \
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{ KVM_TRACE_EXIT_SYSCALL, "System Call" }, \
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{ KVM_TRACE_EXIT_BREAK_INST, "Break Inst" }, \
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{ KVM_TRACE_EXIT_RESVD_INST, "Reserved Inst" }, \
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{ KVM_TRACE_EXIT_COP_UNUSABLE, "COP0/1 Unusable" }, \
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{ KVM_TRACE_EXIT_TRAP_INST, "Trap Inst" }, \
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{ KVM_TRACE_EXIT_MSA_FPE, "MSA FPE" }, \
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{ KVM_TRACE_EXIT_FPE, "FPE" }, \
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{ KVM_TRACE_EXIT_MSA_DISABLED, "MSA Disabled" }, \
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{ KVM_TRACE_EXIT_WAIT, "WAIT" }, \
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{ KVM_TRACE_EXIT_CACHE, "CACHE" }, \
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{ KVM_TRACE_EXIT_SIGNAL, "Signal" }
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TRACE_EVENT(kvm_exit,
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TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason),
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TP_ARGS(vcpu, reason),
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TP_STRUCT__entry(
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__field(unsigned long, pc)
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__field(unsigned int, reason)
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),
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TP_fast_assign(
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__entry->pc = vcpu->arch.pc;
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__entry->reason = reason;
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),
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TP_printk("[%s]PC: 0x%08lx",
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__print_symbolic(__entry->reason,
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kvm_trace_symbol_exit_types),
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__entry->pc)
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);
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#define KVM_TRACE_AUX_RESTORE 0
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#define KVM_TRACE_AUX_SAVE 1
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#define KVM_TRACE_AUX_ENABLE 2
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#define KVM_TRACE_AUX_DISABLE 3
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#define KVM_TRACE_AUX_DISCARD 4
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#define KVM_TRACE_AUX_FPU 1
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#define KVM_TRACE_AUX_MSA 2
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#define KVM_TRACE_AUX_FPU_MSA 3
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#define kvm_trace_symbol_aux_op \
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{ KVM_TRACE_AUX_RESTORE, "restore" }, \
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{ KVM_TRACE_AUX_SAVE, "save" }, \
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{ KVM_TRACE_AUX_ENABLE, "enable" }, \
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{ KVM_TRACE_AUX_DISABLE, "disable" }, \
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{ KVM_TRACE_AUX_DISCARD, "discard" }
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#define kvm_trace_symbol_aux_state \
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{ KVM_TRACE_AUX_FPU, "FPU" }, \
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{ KVM_TRACE_AUX_MSA, "MSA" }, \
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{ KVM_TRACE_AUX_FPU_MSA, "FPU & MSA" }
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TRACE_EVENT(kvm_aux,
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TP_PROTO(struct kvm_vcpu *vcpu, unsigned int op,
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unsigned int state),
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TP_ARGS(vcpu, op, state),
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TP_STRUCT__entry(
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__field(unsigned long, pc)
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__field(u8, op)
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__field(u8, state)
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),
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TP_fast_assign(
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__entry->pc = vcpu->arch.pc;
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__entry->op = op;
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__entry->state = state;
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),
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TP_printk("%s %s PC: 0x%08lx",
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__print_symbolic(__entry->op,
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kvm_trace_symbol_aux_op),
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__print_symbolic(__entry->state,
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kvm_trace_symbol_aux_state),
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__entry->pc)
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);
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TRACE_EVENT(kvm_asid_change,
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TP_PROTO(struct kvm_vcpu *vcpu, unsigned int old_asid,
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unsigned int new_asid),
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TP_ARGS(vcpu, old_asid, new_asid),
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TP_STRUCT__entry(
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__field(unsigned long, pc)
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__field(u8, old_asid)
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__field(u8, new_asid)
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),
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TP_fast_assign(
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__entry->pc = vcpu->arch.pc;
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__entry->old_asid = old_asid;
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__entry->new_asid = new_asid;
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),
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TP_printk("PC: 0x%08lx old: 0x%02x new: 0x%02x",
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__entry->pc,
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__entry->old_asid,
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__entry->new_asid)
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);
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#endif /* _TRACE_KVM_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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