root/include/trace/events/kvm.h
/* SPDX-License-Identifier: GPL-2.0 */
#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), ERSN(EPR),\
        ERSN(SYSTEM_EVENT), ERSN(S390_STSI), ERSN(IOAPIC_EOI),          \
        ERSN(HYPERV), ERSN(ARM_NISV), ERSN(X86_RDMSR), ERSN(X86_WRMSR)

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_IRQCHIP)
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)
);

#ifdef CONFIG_KVM_IOAPIC

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

#endif /* CONFIG_KVM_IOAPIC */

#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_IRQCHIP) */



#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, void *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            = 0;
                if (val)
                        memcpy(&__entry->val, val,
                               min_t(u32, sizeof(__entry->val), len));
        ),

        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))
);

#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_repeated_fault,

        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)

TRACE_EVENT(kvm_dirty_ring_push,
        TP_PROTO(struct kvm_dirty_ring *ring, u32 slot, u64 offset),
        TP_ARGS(ring, slot, offset),

        TP_STRUCT__entry(
                __field(int, index)
                __field(u32, dirty_index)
                __field(u32, reset_index)
                __field(u32, slot)
                __field(u64, offset)
        ),

        TP_fast_assign(
                __entry->index          = ring->index;
                __entry->dirty_index    = ring->dirty_index;
                __entry->reset_index    = ring->reset_index;
                __entry->slot           = slot;
                __entry->offset         = offset;
        ),

        TP_printk("ring %d: dirty 0x%x reset 0x%x "
                  "slot %u offset 0x%llx (used %u)",
                  __entry->index, __entry->dirty_index,
                  __entry->reset_index,  __entry->slot, __entry->offset,
                  __entry->dirty_index - __entry->reset_index)
);

TRACE_EVENT(kvm_dirty_ring_reset,
        TP_PROTO(struct kvm_dirty_ring *ring),
        TP_ARGS(ring),

        TP_STRUCT__entry(
                __field(int, index)
                __field(u32, dirty_index)
                __field(u32, reset_index)
        ),

        TP_fast_assign(
                __entry->index          = ring->index;
                __entry->dirty_index    = ring->dirty_index;
                __entry->reset_index    = ring->reset_index;
        ),

        TP_printk("ring %d: dirty 0x%x reset 0x%x (used %u)",
                  __entry->index, __entry->dirty_index, __entry->reset_index,
                  __entry->dirty_index - __entry->reset_index)
);

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

        TP_STRUCT__entry(
            __field(int, vcpu_id)
        ),

        TP_fast_assign(
            __entry->vcpu_id = vcpu->vcpu_id;
        ),

        TP_printk("vcpu %d", __entry->vcpu_id)
);

#ifdef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES
/*
 * @start:      Starting address of guest memory range
 * @end:        End address of guest memory range
 * @attr:       The value of the attribute being set.
 */
TRACE_EVENT(kvm_vm_set_mem_attributes,
        TP_PROTO(gfn_t start, gfn_t end, unsigned long attr),
        TP_ARGS(start, end, attr),

        TP_STRUCT__entry(
                __field(gfn_t,          start)
                __field(gfn_t,          end)
                __field(unsigned long,  attr)
        ),

        TP_fast_assign(
                __entry->start          = start;
                __entry->end            = end;
                __entry->attr           = attr;
        ),

        TP_printk("%#016llx -- %#016llx [0x%lx]",
                  __entry->start, __entry->end, __entry->attr)
);
#endif /* CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES */

TRACE_EVENT(kvm_unmap_hva_range,
        TP_PROTO(unsigned long start, unsigned long end),
        TP_ARGS(start, end),

        TP_STRUCT__entry(
                __field(        unsigned long,  start           )
                __field(        unsigned long,  end             )
        ),

        TP_fast_assign(
                __entry->start          = start;
                __entry->end            = end;
        ),

        TP_printk("mmu notifier unmap range: %#016lx -- %#016lx",
                  __entry->start, __entry->end)
);

TRACE_EVENT(kvm_age_hva,
        TP_PROTO(unsigned long start, unsigned long end),
        TP_ARGS(start, end),

        TP_STRUCT__entry(
                __field(        unsigned long,  start           )
                __field(        unsigned long,  end             )
        ),

        TP_fast_assign(
                __entry->start          = start;
                __entry->end            = end;
        ),

        TP_printk("mmu notifier age hva: %#016lx -- %#016lx",
                  __entry->start, __entry->end)
);

TRACE_EVENT(kvm_test_age_hva,
        TP_PROTO(unsigned long hva),
        TP_ARGS(hva),

        TP_STRUCT__entry(
                __field(        unsigned long,  hva             )
        ),

        TP_fast_assign(
                __entry->hva            = hva;
        ),

        TP_printk("mmu notifier test age hva: %#016lx", __entry->hva)
);

#endif /* _TRACE_KVM_MAIN_H */

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