cregit-Linux how code gets into the kernel

Release 4.12 include/trace/events/kvm.h

#if !defined(_TRACE_KVM_MAIN_H) || defined(TRACE_HEADER_MULTI_READ)

#define _TRACE_KVM_MAIN_H

#include <linux/tracepoint.h>


#undef TRACE_SYSTEM

#define TRACE_SYSTEM kvm


#define ERSN(x) { KVM_EXIT_##x, "KVM_EXIT_" #x }


#define kvm_trace_exit_reason						\
	ERSN(UNKNOWN), ERSN(EXCEPTION), ERSN(IO), ERSN(HYPERCALL),      \
        ERSN(DEBUG), ERSN(HLT), ERSN(MMIO), ERSN(IRQ_WINDOW_OPEN),      \
        ERSN(SHUTDOWN), ERSN(FAIL_ENTRY), ERSN(INTR), ERSN(SET_TPR),    \
        ERSN(TPR_ACCESS), ERSN(S390_SIEIC), ERSN(S390_RESET), ERSN(DCR),\
        ERSN(NMI), ERSN(INTERNAL_ERROR), ERSN(OSI), ERSN(PAPR_HCALL),   \
        ERSN(S390_UCONTROL), ERSN(WATCHDOG), ERSN(S390_TSCH)

TRACE_EVENT(kvm_userspace_exit,
	    TP_PROTO(__u32 reason, int errno),
	    TP_ARGS(reason, errno),

	TP_STRUCT__entry(
                __field(        __u32,          reason          )
                __field(        int,            errno           )
        ),

	TP_fast_assign(
                __entry->reason         = reason;
                __entry->errno          = errno;
        ),

	TP_printk("reason %s (%d)",
                  __entry->errno < 0 ?
                  (__entry->errno == -EINTR ? "restart" : "error") :
                  __print_symbolic(__entry->reason, kvm_trace_exit_reason),
                  __entry->errno < 0 ? -__entry->errno : __entry->reason)
);

TRACE_EVENT(kvm_vcpu_wakeup,
	    TP_PROTO(__u64 ns, bool waited, bool valid),
	    TP_ARGS(ns, waited, valid),

	TP_STRUCT__entry(
                __field(        __u64,          ns              )
                __field(        bool,           waited          )
                __field(        bool,           valid           )
        ),

	TP_fast_assign(
                __entry->ns             = ns;
                __entry->waited         = waited;
                __entry->valid          = valid;
        ),

	TP_printk("%s time %lld ns, polling %s",
                  __entry->waited ? "wait" : "poll",
                  __entry->ns,
                  __entry->valid ? "valid" : "invalid")
);

#if defined(CONFIG_HAVE_KVM_IRQFD)
TRACE_EVENT(kvm_set_irq,
	TP_PROTO(unsigned int gsi, int level, int irq_source_id),
	TP_ARGS(gsi, level, irq_source_id),

	TP_STRUCT__entry(
                __field(        unsigned int,   gsi             )
                __field(        int,            level           )
                __field(        int,            irq_source_id   )
        ),

	TP_fast_assign(
                __entry->gsi            = gsi;
                __entry->level          = level;
                __entry->irq_source_id  = irq_source_id;
        ),

	TP_printk("gsi %u level %d source %d",
                  __entry->gsi, __entry->level, __entry->irq_source_id)
);
#endif /* defined(CONFIG_HAVE_KVM_IRQFD) */

#if defined(__KVM_HAVE_IOAPIC)

#define kvm_deliver_mode		\
	{0x0, "Fixed"},                 \
        {0x1, "LowPrio"},               \
        {0x2, "SMI"},                   \
        {0x3, "Res3"},                  \
        {0x4, "NMI"},                   \
        {0x5, "INIT"},                  \
        {0x6, "SIPI"},                  \
        {0x7, "ExtINT"}

TRACE_EVENT(kvm_ioapic_set_irq,
	    TP_PROTO(__u64 e, int pin, bool coalesced),
	    TP_ARGS(e, pin, coalesced),

	TP_STRUCT__entry(
                __field(        __u64,          e               )
                __field(        int,            pin             )
                __field(        bool,           coalesced       )
        ),

	TP_fast_assign(
                __entry->e              = e;
                __entry->pin            = pin;
                __entry->coalesced      = coalesced;
        ),

	TP_printk("pin %u dst %x vec %u (%s|%s|%s%s)%s",
                  __entry->pin, (u8)(__entry->e >> 56), (u8)__entry->e,
                  __print_symbolic((__entry->e >> 8 & 0x7), kvm_deliver_mode),
                  (__entry->e & (1<<11)) ? "logical" : "physical",
                  (__entry->e & (1<<15)) ? "level" : "edge",
                  (__entry->e & (1<<16)) ? "|masked" : "",
                  __entry->coalesced ? " (coalesced)" : "")
);

TRACE_EVENT(kvm_ioapic_delayed_eoi_inj,
	    TP_PROTO(__u64 e),
	    TP_ARGS(e),

	TP_STRUCT__entry(
                __field(        __u64,          e               )
        ),

	TP_fast_assign(
                __entry->e              = e;
        ),

	TP_printk("dst %x vec %u (%s|%s|%s%s)",
                  (u8)(__entry->e >> 56), (u8)__entry->e,
                  __print_symbolic((__entry->e >> 8 & 0x7), kvm_deliver_mode),
                  (__entry->e & (1<<11)) ? "logical" : "physical",
                  (__entry->e & (1<<15)) ? "level" : "edge",
                  (__entry->e & (1<<16)) ? "|masked" : "")
);

TRACE_EVENT(kvm_msi_set_irq,
	    TP_PROTO(__u64 address, __u64 data),
	    TP_ARGS(address, data),

	TP_STRUCT__entry(
                __field(        __u64,          address         )
                __field(        __u64,          data            )
        ),

	TP_fast_assign(
                __entry->address        = address;
                __entry->data           = data;
        ),

	TP_printk("dst %llx vec %u (%s|%s|%s%s)",
                  (u8)(__entry->address >> 12) | ((__entry->address >> 32) & 0xffffff00),
                  (u8)__entry->data,
                  __print_symbolic((__entry->data >> 8 & 0x7), kvm_deliver_mode),
                  (__entry->address & (1<<2)) ? "logical" : "physical",
                  (__entry->data & (1<<15)) ? "level" : "edge",
                  (__entry->address & (1<<3)) ? "|rh" : "")
);


#define kvm_irqchips						\
	{KVM_IRQCHIP_PIC_MASTER,        "PIC master"},          \
        {KVM_IRQCHIP_PIC_SLAVE,         "PIC slave"},           \
        {KVM_IRQCHIP_IOAPIC,            "IOAPIC"}

#endif /* defined(__KVM_HAVE_IOAPIC) */

#if defined(CONFIG_HAVE_KVM_IRQFD)

#ifdef kvm_irqchips

#define kvm_ack_irq_string "irqchip %s pin %u"

#define kvm_ack_irq_parm  __print_symbolic(__entry->irqchip, kvm_irqchips), __entry->pin
#else

#define kvm_ack_irq_string "irqchip %d pin %u"

#define kvm_ack_irq_parm  __entry->irqchip, __entry->pin
#endif

TRACE_EVENT(kvm_ack_irq,
	TP_PROTO(unsigned int irqchip, unsigned int pin),
	TP_ARGS(irqchip, pin),

	TP_STRUCT__entry(
                __field(        unsigned int,   irqchip         )
                __field(        unsigned int,   pin             )
        ),

	TP_fast_assign(
                __entry->irqchip        = irqchip;
                __entry->pin            = pin;
        ),

	TP_printk(kvm_ack_irq_string, kvm_ack_irq_parm)
);

#endif /* defined(CONFIG_HAVE_KVM_IRQFD) */




#define KVM_TRACE_MMIO_READ_UNSATISFIED 0

#define KVM_TRACE_MMIO_READ 1

#define KVM_TRACE_MMIO_WRITE 2


#define kvm_trace_symbol_mmio \
	{ KVM_TRACE_MMIO_READ_UNSATISFIED, "unsatisfied-read" }, \
        { KVM_TRACE_MMIO_READ, "read" }, \
        { KVM_TRACE_MMIO_WRITE, "write" }

TRACE_EVENT(kvm_mmio,
	TP_PROTO(int type, int len, u64 gpa, u64 val),
	TP_ARGS(type, len, gpa, val),

	TP_STRUCT__entry(
                __field(        u32,    type            )
                __field(        u32,    len             )
                __field(        u64,    gpa             )
                __field(        u64,    val             )
        ),

	TP_fast_assign(
                __entry->type           = type;
                __entry->len            = len;
                __entry->gpa            = gpa;
                __entry->val            = val;
        ),

	TP_printk("mmio %s len %u gpa 0x%llx val 0x%llx",
                  __print_symbolic(__entry->type, kvm_trace_symbol_mmio),
                  __entry->len, __entry->gpa, __entry->val)
);


#define kvm_fpu_load_symbol	\
	{0, "unload"},          \
        {1, "load"}

TRACE_EVENT(kvm_fpu,
	TP_PROTO(int load),
	TP_ARGS(load),

	TP_STRUCT__entry(
                __field(        u32,            load            )
        ),

	TP_fast_assign(
                __entry->load           = load;
        ),

	TP_printk("%s", __print_symbolic(__entry->load, kvm_fpu_load_symbol))
);

TRACE_EVENT(kvm_age_page,
	TP_PROTO(ulong gfn, int level, struct kvm_memory_slot *slot, int ref),
	TP_ARGS(gfn, level, slot, ref),

	TP_STRUCT__entry(
                __field(        u64,    hva             )
                __field(        u64,    gfn             )
                __field(        u8,     level           )
                __field(        u8,     referenced      )
        ),

	TP_fast_assign(
                __entry->gfn            = gfn;
                __entry->level          = level;
                __entry->hva            = ((gfn - slot->base_gfn) <<
                                            PAGE_SHIFT) + slot->userspace_addr;
                __entry->referenced     = ref;
        ),

	TP_printk("hva %llx gfn %llx level %u %s",
                  __entry->hva, __entry->gfn, __entry->level,
                  __entry->referenced ? "YOUNG" : "OLD")
);

#ifdef CONFIG_KVM_ASYNC_PF
DECLARE_EVENT_CLASS(kvm_async_get_page_class,

	TP_PROTO(u64 gva, u64 gfn),

	TP_ARGS(gva, gfn),

	TP_STRUCT__entry(
                __field(__u64, gva)
                __field(u64, gfn)
        ),

	TP_fast_assign(
                __entry->gva = gva;
                __entry->gfn = gfn;
        ),

	TP_printk("gva = %#llx, gfn = %#llx", __entry->gva, __entry->gfn)
);

DEFINE_EVENT(kvm_async_get_page_class, kvm_try_async_get_page,

	TP_PROTO(u64 gva, u64 gfn),

	TP_ARGS(gva, gfn)
);

DEFINE_EVENT(kvm_async_get_page_class, kvm_async_pf_doublefault,

	TP_PROTO(u64 gva, u64 gfn),

	TP_ARGS(gva, gfn)
);

DECLARE_EVENT_CLASS(kvm_async_pf_nopresent_ready,

	TP_PROTO(u64 token, u64 gva),

	TP_ARGS(token, gva),

	TP_STRUCT__entry(
                __field(__u64, token)
                __field(__u64, gva)
        ),

	TP_fast_assign(
                __entry->token = token;
                __entry->gva = gva;
        ),

	TP_printk("token %#llx gva %#llx", __entry->token, __entry->gva)

);

DEFINE_EVENT(kvm_async_pf_nopresent_ready, kvm_async_pf_not_present,

	TP_PROTO(u64 token, u64 gva),

	TP_ARGS(token, gva)
);

DEFINE_EVENT(kvm_async_pf_nopresent_ready, kvm_async_pf_ready,

	TP_PROTO(u64 token, u64 gva),

	TP_ARGS(token, gva)
);

TRACE_EVENT(
	kvm_async_pf_completed,
	TP_PROTO(unsigned long address, u64 gva),
	TP_ARGS(address, gva),

	TP_STRUCT__entry(
                __field(unsigned long, address)
                __field(u64, gva)
                ),

	TP_fast_assign(
                __entry->address = address;
                __entry->gva = gva;
                ),

	TP_printk("gva %#llx address %#lx",  __entry->gva,
                  __entry->address)
);

#endif

TRACE_EVENT(kvm_halt_poll_ns,
	TP_PROTO(bool grow, unsigned int vcpu_id, unsigned int new,
                 unsigned int old),
	TP_ARGS(grow, vcpu_id, new, old),

	TP_STRUCT__entry(
                __field(bool, grow)
                __field(unsigned int, vcpu_id)
                __field(unsigned int, new)
                __field(unsigned int, old)
        ),

	TP_fast_assign(
                __entry->grow           = grow;
                __entry->vcpu_id        = vcpu_id;
                __entry->new            = new;
                __entry->old            = old;
        ),

	TP_printk("vcpu %u: halt_poll_ns %u (%s %u)",
                        __entry->vcpu_id,
                        __entry->new,
                        __entry->grow ? "grow" : "shrink",
                        __entry->old)
);


#define trace_kvm_halt_poll_ns_grow(vcpu_id, new, old) \
	trace_kvm_halt_poll_ns(true, vcpu_id, new, old)

#define trace_kvm_halt_poll_ns_shrink(vcpu_id, new, old) \
	trace_kvm_halt_poll_ns(false, vcpu_id, new, old)

#endif /* _TRACE_KVM_MAIN_H */

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

Overall Contributors

PersonTokensPropCommitsCommitProp
Gleb Natapov18631.16%415.38%
Xiao Guangrong8414.07%27.69%
Avi Kivity7712.90%415.38%
Marcelo Tosatti6711.22%13.85%
Zhang Haoyu467.71%13.85%
Wanpeng Li447.37%27.69%
Christian Bornträger376.20%311.54%
Paolo Bonzini193.18%27.69%
Alexander Graf81.34%13.85%
Christoffer Dall81.34%13.85%
Andres Lagar-Cavilla61.01%13.85%
chai wen61.01%13.85%
Radim Krčmář61.01%13.85%
Jan Kiszka20.34%13.85%
Cornelia Huck10.17%13.85%
Total597100.00%26100.00%
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