arch/mips/kvm/trace.h

root/arch/mips/kvm/trace.h
/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2012  MIPS Technologies, Inc.  All rights reserved.
 * Authors: Sanjay Lal <sanjayl@kymasys.com>
 */

#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
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE trace

/*
 * arch/mips/kvm/mips.c
 */
extern bool kvm_trace_guest_mode_change;
int kvm_guest_mode_change_trace_reg(void);
void kvm_guest_mode_change_trace_unreg(void);

/*
 * Tracepoints for VM enters
 */
DECLARE_EVENT_CLASS(kvm_transition,
        TP_PROTO(struct kvm_vcpu *vcpu),
        TP_ARGS(vcpu),
        TP_STRUCT__entry(
                __field(unsigned long, pc)
        ),

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

        TP_printk("PC: 0x%08lx",
                  __entry->pc)
);

DEFINE_EVENT(kvm_transition, kvm_enter,
             TP_PROTO(struct kvm_vcpu *vcpu),
             TP_ARGS(vcpu));

DEFINE_EVENT(kvm_transition, kvm_reenter,
             TP_PROTO(struct kvm_vcpu *vcpu),
             TP_ARGS(vcpu));

DEFINE_EVENT(kvm_transition, kvm_out,
             TP_PROTO(struct kvm_vcpu *vcpu),
             TP_ARGS(vcpu));

/* The first 32 exit reasons correspond to Cause.ExcCode */
#define KVM_TRACE_EXIT_INT               0
#define KVM_TRACE_EXIT_TLBMOD            1
#define KVM_TRACE_EXIT_TLBMISS_LD        2
#define KVM_TRACE_EXIT_TLBMISS_ST        3
#define KVM_TRACE_EXIT_ADDRERR_LD        4
#define KVM_TRACE_EXIT_ADDRERR_ST        5
#define KVM_TRACE_EXIT_SYSCALL           8
#define KVM_TRACE_EXIT_BREAK_INST        9
#define KVM_TRACE_EXIT_RESVD_INST       10
#define KVM_TRACE_EXIT_COP_UNUSABLE     11
#define KVM_TRACE_EXIT_TRAP_INST        13
#define KVM_TRACE_EXIT_MSA_FPE          14
#define KVM_TRACE_EXIT_FPE              15
#define KVM_TRACE_EXIT_MSA_DISABLED     21
#define KVM_TRACE_EXIT_GUEST_EXIT       27
/* Further exit reasons */
#define KVM_TRACE_EXIT_WAIT             32
#define KVM_TRACE_EXIT_CACHE            33
#define KVM_TRACE_EXIT_SIGNAL           34
/* 32 exit reasons correspond to GuestCtl0.GExcCode (VZ) */
#define KVM_TRACE_EXIT_GEXCCODE_BASE    64
#define KVM_TRACE_EXIT_GPSI             64      /*  0 */
#define KVM_TRACE_EXIT_GSFC             65      /*  1 */
#define KVM_TRACE_EXIT_HC               66      /*  2 */
#define KVM_TRACE_EXIT_GRR              67      /*  3 */
#define KVM_TRACE_EXIT_GVA              72      /*  8 */
#define KVM_TRACE_EXIT_GHFC             73      /*  9 */
#define KVM_TRACE_EXIT_GPA              74      /* 10 */

/* Tracepoints for VM exits */
#define kvm_trace_symbol_exit_types                             \
        { KVM_TRACE_EXIT_INT,           "Interrupt" },          \
        { KVM_TRACE_EXIT_TLBMOD,        "TLB Mod" },            \
        { KVM_TRACE_EXIT_TLBMISS_LD,    "TLB Miss (LD)" },      \
        { KVM_TRACE_EXIT_TLBMISS_ST,    "TLB Miss (ST)" },      \
        { KVM_TRACE_EXIT_ADDRERR_LD,    "Address Error (LD)" }, \
        { KVM_TRACE_EXIT_ADDRERR_ST,    "Address Err (ST)" },   \
        { KVM_TRACE_EXIT_SYSCALL,       "System Call" },        \
        { KVM_TRACE_EXIT_BREAK_INST,    "Break Inst" },         \
        { KVM_TRACE_EXIT_RESVD_INST,    "Reserved Inst" },      \
        { KVM_TRACE_EXIT_COP_UNUSABLE,  "COP0/1 Unusable" },    \
        { KVM_TRACE_EXIT_TRAP_INST,     "Trap Inst" },          \
        { KVM_TRACE_EXIT_MSA_FPE,       "MSA FPE" },            \
        { KVM_TRACE_EXIT_FPE,           "FPE" },                \
        { KVM_TRACE_EXIT_MSA_DISABLED,  "MSA Disabled" },       \
        { KVM_TRACE_EXIT_GUEST_EXIT,    "Guest Exit" },         \
        { KVM_TRACE_EXIT_WAIT,          "WAIT" },               \
        { KVM_TRACE_EXIT_CACHE,         "CACHE" },              \
        { KVM_TRACE_EXIT_SIGNAL,        "Signal" },             \
        { KVM_TRACE_EXIT_GPSI,          "GPSI" },               \
        { KVM_TRACE_EXIT_GSFC,          "GSFC" },               \
        { KVM_TRACE_EXIT_HC,            "HC" },                 \
        { KVM_TRACE_EXIT_GRR,           "GRR" },                \
        { KVM_TRACE_EXIT_GVA,           "GVA" },                \
        { KVM_TRACE_EXIT_GHFC,          "GHFC" },               \
        { KVM_TRACE_EXIT_GPA,           "GPA" }

TRACE_EVENT(kvm_exit,
            TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason),
            TP_ARGS(vcpu, reason),
            TP_STRUCT__entry(
                        __field(unsigned long, pc)
                        __field(unsigned int, reason)
            ),

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

            TP_printk("[%s]PC: 0x%08lx",
                      __print_symbolic(__entry->reason,
                                       kvm_trace_symbol_exit_types),
                      __entry->pc)
);

#define KVM_TRACE_MFC0          0
#define KVM_TRACE_MTC0          1
#define KVM_TRACE_DMFC0         2
#define KVM_TRACE_DMTC0         3
#define KVM_TRACE_RDHWR         4

#define KVM_TRACE_HWR_COP0      0
#define KVM_TRACE_HWR_HWR       1

#define KVM_TRACE_COP0(REG, SEL)        ((KVM_TRACE_HWR_COP0 << 8) |    \
                                         ((REG) << 3) | (SEL))
#define KVM_TRACE_HWR(REG, SEL)         ((KVM_TRACE_HWR_HWR  << 8) |    \
                                         ((REG) << 3) | (SEL))

#define kvm_trace_symbol_hwr_ops                                \
        { KVM_TRACE_MFC0,               "MFC0" },               \
        { KVM_TRACE_MTC0,               "MTC0" },               \
        { KVM_TRACE_DMFC0,              "DMFC0" },              \
        { KVM_TRACE_DMTC0,              "DMTC0" },              \
        { KVM_TRACE_RDHWR,              "RDHWR" }

#define kvm_trace_symbol_hwr_cop                                \
        { KVM_TRACE_HWR_COP0,           "COP0" },               \
        { KVM_TRACE_HWR_HWR,            "HWR" }

#define kvm_trace_symbol_hwr_regs                               \
        { KVM_TRACE_COP0( 0, 0),        "Index" },              \
        { KVM_TRACE_COP0( 2, 0),        "EntryLo0" },           \
        { KVM_TRACE_COP0( 3, 0),        "EntryLo1" },           \
        { KVM_TRACE_COP0( 4, 0),        "Context" },            \
        { KVM_TRACE_COP0( 4, 2),        "UserLocal" },          \
        { KVM_TRACE_COP0( 5, 0),        "PageMask" },           \
        { KVM_TRACE_COP0( 6, 0),        "Wired" },              \
        { KVM_TRACE_COP0( 7, 0),        "HWREna" },             \
        { KVM_TRACE_COP0( 8, 0),        "BadVAddr" },           \
        { KVM_TRACE_COP0( 9, 0),        "Count" },              \
        { KVM_TRACE_COP0(10, 0),        "EntryHi" },            \
        { KVM_TRACE_COP0(11, 0),        "Compare" },            \
        { KVM_TRACE_COP0(12, 0),        "Status" },             \
        { KVM_TRACE_COP0(12, 1),        "IntCtl" },             \
        { KVM_TRACE_COP0(12, 2),        "SRSCtl" },             \
        { KVM_TRACE_COP0(13, 0),        "Cause" },              \
        { KVM_TRACE_COP0(14, 0),        "EPC" },                \
        { KVM_TRACE_COP0(15, 0),        "PRId" },               \
        { KVM_TRACE_COP0(15, 1),        "EBase" },              \
        { KVM_TRACE_COP0(16, 0),        "Config" },             \
        { KVM_TRACE_COP0(16, 1),        "Config1" },            \
        { KVM_TRACE_COP0(16, 2),        "Config2" },            \
        { KVM_TRACE_COP0(16, 3),        "Config3" },            \
        { KVM_TRACE_COP0(16, 4),        "Config4" },            \
        { KVM_TRACE_COP0(16, 5),        "Config5" },            \
        { KVM_TRACE_COP0(16, 7),        "Config7" },            \
        { KVM_TRACE_COP0(17, 1),        "MAAR" },               \
        { KVM_TRACE_COP0(17, 2),        "MAARI" },              \
        { KVM_TRACE_COP0(26, 0),        "ECC" },                \
        { KVM_TRACE_COP0(30, 0),        "ErrorEPC" },           \
        { KVM_TRACE_COP0(31, 2),        "KScratch1" },          \
        { KVM_TRACE_COP0(31, 3),        "KScratch2" },          \
        { KVM_TRACE_COP0(31, 4),        "KScratch3" },          \
        { KVM_TRACE_COP0(31, 5),        "KScratch4" },          \
        { KVM_TRACE_COP0(31, 6),        "KScratch5" },          \
        { KVM_TRACE_COP0(31, 7),        "KScratch6" },          \
        { KVM_TRACE_HWR( 0, 0),         "CPUNum" },             \
        { KVM_TRACE_HWR( 1, 0),         "SYNCI_Step" },         \
        { KVM_TRACE_HWR( 2, 0),         "CC" },                 \
        { KVM_TRACE_HWR( 3, 0),         "CCRes" },              \
        { KVM_TRACE_HWR(29, 0),         "ULR" }

TRACE_EVENT(kvm_hwr,
            TP_PROTO(struct kvm_vcpu *vcpu, unsigned int op, unsigned int reg,
                     unsigned long val),
            TP_ARGS(vcpu, op, reg, val),
            TP_STRUCT__entry(
                        __field(unsigned long, val)
                        __field(u16, reg)
                        __field(u8, op)
            ),

            TP_fast_assign(
                        __entry->val = val;
                        __entry->reg = reg;
                        __entry->op = op;
            ),

            TP_printk("%s %s (%s:%u:%u) 0x%08lx",
                      __print_symbolic(__entry->op,
                                       kvm_trace_symbol_hwr_ops),
                      __print_symbolic(__entry->reg,
                                       kvm_trace_symbol_hwr_regs),
                      __print_symbolic(__entry->reg >> 8,
                                       kvm_trace_symbol_hwr_cop),
                      (__entry->reg >> 3) & 0x1f,
                      __entry->reg & 0x7,
                      __entry->val)
);

#define KVM_TRACE_AUX_RESTORE           0
#define KVM_TRACE_AUX_SAVE              1
#define KVM_TRACE_AUX_ENABLE            2
#define KVM_TRACE_AUX_DISABLE           3
#define KVM_TRACE_AUX_DISCARD           4

#define KVM_TRACE_AUX_FPU               1
#define KVM_TRACE_AUX_MSA               2
#define KVM_TRACE_AUX_FPU_MSA           3

#define kvm_trace_symbol_aux_op         \
        { KVM_TRACE_AUX_RESTORE, "restore" },   \
        { KVM_TRACE_AUX_SAVE,    "save" },      \
        { KVM_TRACE_AUX_ENABLE,  "enable" },    \
        { KVM_TRACE_AUX_DISABLE, "disable" },   \
        { KVM_TRACE_AUX_DISCARD, "discard" }

#define kvm_trace_symbol_aux_state              \
        { KVM_TRACE_AUX_FPU,     "FPU" },       \
        { KVM_TRACE_AUX_MSA,     "MSA" },       \
        { KVM_TRACE_AUX_FPU_MSA, "FPU & MSA" }

TRACE_EVENT(kvm_aux,
            TP_PROTO(struct kvm_vcpu *vcpu, unsigned int op,
                     unsigned int state),
            TP_ARGS(vcpu, op, state),
            TP_STRUCT__entry(
                        __field(unsigned long, pc)
                        __field(u8, op)
                        __field(u8, state)
            ),

            TP_fast_assign(
                        __entry->pc = vcpu->arch.pc;
                        __entry->op = op;
                        __entry->state = state;
            ),

            TP_printk("%s %s PC: 0x%08lx",
                      __print_symbolic(__entry->op,
                                       kvm_trace_symbol_aux_op),
                      __print_symbolic(__entry->state,
                                       kvm_trace_symbol_aux_state),
                      __entry->pc)
);

TRACE_EVENT(kvm_asid_change,
            TP_PROTO(struct kvm_vcpu *vcpu, unsigned int old_asid,
                     unsigned int new_asid),
            TP_ARGS(vcpu, old_asid, new_asid),
            TP_STRUCT__entry(
                        __field(unsigned long, pc)
                        __field(u8, old_asid)
                        __field(u8, new_asid)
            ),

            TP_fast_assign(
                        __entry->pc = vcpu->arch.pc;
                        __entry->old_asid = old_asid;
                        __entry->new_asid = new_asid;
            ),

            TP_printk("PC: 0x%08lx old: 0x%02x new: 0x%02x",
                      __entry->pc,
                      __entry->old_asid,
                      __entry->new_asid)
);

TRACE_EVENT(kvm_guestid_change,
            TP_PROTO(struct kvm_vcpu *vcpu, unsigned int guestid),
            TP_ARGS(vcpu, guestid),
            TP_STRUCT__entry(
                        __field(unsigned int, guestid)
            ),

            TP_fast_assign(
                        __entry->guestid = guestid;
            ),

            TP_printk("GuestID: 0x%02x",
                      __entry->guestid)
);

TRACE_EVENT_FN(kvm_guest_mode_change,
            TP_PROTO(struct kvm_vcpu *vcpu),
            TP_ARGS(vcpu),
            TP_STRUCT__entry(
                        __field(unsigned long, epc)
                        __field(unsigned long, pc)
                        __field(unsigned long, badvaddr)
                        __field(unsigned int, status)
                        __field(unsigned int, cause)
            ),

            TP_fast_assign(
                        __entry->epc = kvm_read_c0_guest_epc(&vcpu->arch.cop0);
                        __entry->pc = vcpu->arch.pc;
                        __entry->badvaddr = kvm_read_c0_guest_badvaddr(&vcpu->arch.cop0);
                        __entry->status = kvm_read_c0_guest_status(&vcpu->arch.cop0);
                        __entry->cause = kvm_read_c0_guest_cause(&vcpu->arch.cop0);
            ),

            TP_printk("EPC: 0x%08lx PC: 0x%08lx Status: 0x%08x Cause: 0x%08x BadVAddr: 0x%08lx",
                      __entry->epc,
                      __entry->pc,
                      __entry->status,
                      __entry->cause,
                      __entry->badvaddr),

            kvm_guest_mode_change_trace_reg,
            kvm_guest_mode_change_trace_unreg
);

#endif /* _TRACE_KVM_H */

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