Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-29 22:31:32 +00:00
Code Issues Packages Projects Releases Wiki Activity
82a8f131aa
linux/arch/x86/kvm/trace.h
Yoshihiro YUNOMAE 489223edf2 kvm: Add a tracepoint write_tsc_offset 
Add a tracepoint write_tsc_offset for tracing TSC offset change.
We want to merge ftrace's trace data of guest OSs and the host OS using
TSC for timestamp in chronological order. We need "TSC offset" values for
each guest when merge those because the TSC value on a guest is always the
host TSC plus guest's TSC offset. If we get the TSC offset values, we can
calculate the host TSC value for each guest events from the TSC offset and
the event TSC value. The host TSC values of the guest events are used when we
want to merge trace data of guests and the host in chronological order.
(Note: the trace_clock of both the host and the guest must be set x86-tsc in
this case)

This tracepoint also records vcpu_id which can be used to merge trace data for
SMP guests. A merge tool will read TSC offset for each vcpu, then the tool
converts guest TSC values to host TSC values for each vcpu.

TSC offset is stored in the VMCS by vmx_write_tsc_offset() or
vmx_adjust_tsc_offset(). KVM executes the former function when a guest boots.
The latter function is executed when kvm clock is updated. Only host can read
TSC offset value from VMCS, so a host needs to output TSC offset value
when TSC offset is changed.

Since the TSC offset is not often changed, it could be overwritten by other
frequent events while tracing. To avoid that, I recommend to use a special
instance for getting this event:

1. set a instance before booting a guest
 # cd /sys/kernel/debug/tracing/instances
 # mkdir tsc_offset
 # cd tsc_offset
 # echo x86-tsc > trace_clock
 # echo 1 > events/kvm/kvm_write_tsc_offset/enable

2. boot a guest

Signed-off-by: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@hitachi.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Gleb Natapov <gleb@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-06-27 14:20:51 +03:00

850 lines
21 KiB
C
Raw Blame History

#if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_KVM_H
#include <linux/tracepoint.h>
#include <asm/vmx.h>
#include <asm/svm.h>
#include <asm/clocksource.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM kvm
/*
* Tracepoint for guest mode entry.
*/
TRACE_EVENT(kvm_entry,
TP_PROTO(unsigned int vcpu_id),
TP_ARGS(vcpu_id),
TP_STRUCT__entry(
__field( unsigned int, vcpu_id )
),
TP_fast_assign(
__entry->vcpu_id = vcpu_id;
),
TP_printk("vcpu %u", __entry->vcpu_id)
);
/*
* Tracepoint for hypercall.
*/
TRACE_EVENT(kvm_hypercall,
TP_PROTO(unsigned long nr, unsigned long a0, unsigned long a1,
unsigned long a2, unsigned long a3),
TP_ARGS(nr, a0, a1, a2, a3),
TP_STRUCT__entry(
__field( unsigned long, nr )
__field( unsigned long, a0 )
__field( unsigned long, a1 )
__field( unsigned long, a2 )
__field( unsigned long, a3 )
),
TP_fast_assign(
__entry->nr = nr;
__entry->a0 = a0;
__entry->a1 = a1;
__entry->a2 = a2;
__entry->a3 = a3;
),
TP_printk("nr 0x%lx a0 0x%lx a1 0x%lx a2 0x%lx a3 0x%lx",
__entry->nr, __entry->a0, __entry->a1, __entry->a2,
__entry->a3)
);
/*
* Tracepoint for hypercall.
*/
TRACE_EVENT(kvm_hv_hypercall,
TP_PROTO(__u16 code, bool fast, __u16 rep_cnt, __u16 rep_idx,
__u64 ingpa, __u64 outgpa),
TP_ARGS(code, fast, rep_cnt, rep_idx, ingpa, outgpa),
TP_STRUCT__entry(
__field( __u16, rep_cnt )
__field( __u16, rep_idx )
__field( __u64, ingpa )
__field( __u64, outgpa )
__field( __u16, code )
__field( bool, fast )
),
TP_fast_assign(
__entry->rep_cnt = rep_cnt;
__entry->rep_idx = rep_idx;
__entry->ingpa = ingpa;
__entry->outgpa = outgpa;
__entry->code = code;
__entry->fast = fast;
),
TP_printk("code 0x%x %s cnt 0x%x idx 0x%x in 0x%llx out 0x%llx",
__entry->code, __entry->fast ? "fast" : "slow",
__entry->rep_cnt, __entry->rep_idx, __entry->ingpa,
__entry->outgpa)
);
/*
* Tracepoint for PIO.
*/
TRACE_EVENT(kvm_pio,
TP_PROTO(unsigned int rw, unsigned int port, unsigned int size,
unsigned int count),
TP_ARGS(rw, port, size, count),
TP_STRUCT__entry(
__field( unsigned int, rw )
__field( unsigned int, port )
__field( unsigned int, size )
__field( unsigned int, count )
),
TP_fast_assign(
__entry->rw = rw;
__entry->port = port;
__entry->size = size;
__entry->count = count;
),
TP_printk("pio_%s at 0x%x size %d count %d",
__entry->rw ? "write" : "read",
__entry->port, __entry->size, __entry->count)
);
/*
* Tracepoint for cpuid.
*/
TRACE_EVENT(kvm_cpuid,
TP_PROTO(unsigned int function, unsigned long rax, unsigned long rbx,
unsigned long rcx, unsigned long rdx),
TP_ARGS(function, rax, rbx, rcx, rdx),
TP_STRUCT__entry(
__field( unsigned int, function )
__field( unsigned long, rax )
__field( unsigned long, rbx )
__field( unsigned long, rcx )
__field( unsigned long, rdx )
),
TP_fast_assign(
__entry->function = function;
__entry->rax = rax;
__entry->rbx = rbx;
__entry->rcx = rcx;
__entry->rdx = rdx;
),
TP_printk("func %x rax %lx rbx %lx rcx %lx rdx %lx",
__entry->function, __entry->rax,
__entry->rbx, __entry->rcx, __entry->rdx)
);
#define AREG(x) { APIC_##x, "APIC_" #x }
#define kvm_trace_symbol_apic \
AREG(ID), AREG(LVR), AREG(TASKPRI), AREG(ARBPRI), AREG(PROCPRI), \
AREG(EOI), AREG(RRR), AREG(LDR), AREG(DFR), AREG(SPIV), AREG(ISR), \
AREG(TMR), AREG(IRR), AREG(ESR), AREG(ICR), AREG(ICR2), AREG(LVTT), \
AREG(LVTTHMR), AREG(LVTPC), AREG(LVT0), AREG(LVT1), AREG(LVTERR), \
AREG(TMICT), AREG(TMCCT), AREG(TDCR), AREG(SELF_IPI), AREG(EFEAT), \
AREG(ECTRL)
/*
* Tracepoint for apic access.
*/
TRACE_EVENT(kvm_apic,
TP_PROTO(unsigned int rw, unsigned int reg, unsigned int val),
TP_ARGS(rw, reg, val),
TP_STRUCT__entry(
__field( unsigned int, rw )
__field( unsigned int, reg )
__field( unsigned int, val )
),
TP_fast_assign(
__entry->rw = rw;
__entry->reg = reg;
__entry->val = val;
),
TP_printk("apic_%s %s = 0x%x",
__entry->rw ? "write" : "read",
__print_symbolic(__entry->reg, kvm_trace_symbol_apic),
__entry->val)
);
#define trace_kvm_apic_read(reg, val) trace_kvm_apic(0, reg, val)
#define trace_kvm_apic_write(reg, val) trace_kvm_apic(1, reg, val)
#define KVM_ISA_VMX 1
#define KVM_ISA_SVM 2
/*
* Tracepoint for kvm guest exit:
*/
TRACE_EVENT(kvm_exit,
TP_PROTO(unsigned int exit_reason, struct kvm_vcpu *vcpu, u32 isa),
TP_ARGS(exit_reason, vcpu, isa),
TP_STRUCT__entry(
__field( unsigned int, exit_reason )
__field( unsigned long, guest_rip )
__field( u32, isa )
__field( u64, info1 )
__field( u64, info2 )
),
TP_fast_assign(
__entry->exit_reason = exit_reason;
__entry->guest_rip = kvm_rip_read(vcpu);
__entry->isa = isa;
kvm_x86_ops->get_exit_info(vcpu, &__entry->info1,
&__entry->info2);
),
TP_printk("reason %s rip 0x%lx info %llx %llx",
(__entry->isa == KVM_ISA_VMX) ?
__print_symbolic(__entry->exit_reason, VMX_EXIT_REASONS) :
__print_symbolic(__entry->exit_reason, SVM_EXIT_REASONS),
__entry->guest_rip, __entry->info1, __entry->info2)
);
/*
* Tracepoint for kvm interrupt injection:
*/
TRACE_EVENT(kvm_inj_virq,
TP_PROTO(unsigned int irq),
TP_ARGS(irq),
TP_STRUCT__entry(
__field( unsigned int, irq )
),
TP_fast_assign(
__entry->irq = irq;
),
TP_printk("irq %u", __entry->irq)
);
#define EXS(x) { x##_VECTOR, "#" #x }
#define kvm_trace_sym_exc \
EXS(DE), EXS(DB), EXS(BP), EXS(OF), EXS(BR), EXS(UD), EXS(NM), \
EXS(DF), EXS(TS), EXS(NP), EXS(SS), EXS(GP), EXS(PF), \
EXS(MF), EXS(MC)
/*
* Tracepoint for kvm interrupt injection:
*/
TRACE_EVENT(kvm_inj_exception,
TP_PROTO(unsigned exception, bool has_error, unsigned error_code),
TP_ARGS(exception, has_error, error_code),
TP_STRUCT__entry(
__field( u8, exception )
__field( u8, has_error )
__field( u32, error_code )
),
TP_fast_assign(
__entry->exception = exception;
__entry->has_error = has_error;
__entry->error_code = error_code;
),
TP_printk("%s (0x%x)",
__print_symbolic(__entry->exception, kvm_trace_sym_exc),
/* FIXME: don't print error_code if not present */
__entry->has_error ? __entry->error_code : 0)
);
/*
* Tracepoint for page fault.
*/
TRACE_EVENT(kvm_page_fault,
TP_PROTO(unsigned long fault_address, unsigned int error_code),
TP_ARGS(fault_address, error_code),
TP_STRUCT__entry(
__field( unsigned long, fault_address )
__field( unsigned int, error_code )
),
TP_fast_assign(
__entry->fault_address = fault_address;
__entry->error_code = error_code;
),
TP_printk("address %lx error_code %x",
__entry->fault_address, __entry->error_code)
);
/*
* Tracepoint for guest MSR access.
*/
TRACE_EVENT(kvm_msr,
TP_PROTO(unsigned write, u32 ecx, u64 data, bool exception),
TP_ARGS(write, ecx, data, exception),
TP_STRUCT__entry(
__field( unsigned, write )
__field( u32, ecx )
__field( u64, data )
__field( u8, exception )
),
TP_fast_assign(
__entry->write = write;
__entry->ecx = ecx;
__entry->data = data;
__entry->exception = exception;
),
TP_printk("msr_%s %x = 0x%llx%s",
__entry->write ? "write" : "read",
__entry->ecx, __entry->data,
__entry->exception ? " (#GP)" : "")
);
#define trace_kvm_msr_read(ecx, data) trace_kvm_msr(0, ecx, data, false)
#define trace_kvm_msr_write(ecx, data) trace_kvm_msr(1, ecx, data, false)
#define trace_kvm_msr_read_ex(ecx) trace_kvm_msr(0, ecx, 0, true)
#define trace_kvm_msr_write_ex(ecx, data) trace_kvm_msr(1, ecx, data, true)
/*
* Tracepoint for guest CR access.
*/
TRACE_EVENT(kvm_cr,
TP_PROTO(unsigned int rw, unsigned int cr, unsigned long val),
TP_ARGS(rw, cr, val),
TP_STRUCT__entry(
__field( unsigned int, rw )
__field( unsigned int, cr )
__field( unsigned long, val )
),
TP_fast_assign(
__entry->rw = rw;
__entry->cr = cr;
__entry->val = val;
),
TP_printk("cr_%s %x = 0x%lx",
__entry->rw ? "write" : "read",
__entry->cr, __entry->val)
);
#define trace_kvm_cr_read(cr, val) trace_kvm_cr(0, cr, val)
#define trace_kvm_cr_write(cr, val) trace_kvm_cr(1, cr, val)
TRACE_EVENT(kvm_pic_set_irq,
TP_PROTO(__u8 chip, __u8 pin, __u8 elcr, __u8 imr, bool coalesced),
TP_ARGS(chip, pin, elcr, imr, coalesced),
TP_STRUCT__entry(
__field( __u8, chip )
__field( __u8, pin )
__field( __u8, elcr )
__field( __u8, imr )
__field( bool, coalesced )
),
TP_fast_assign(
__entry->chip = chip;
__entry->pin = pin;
__entry->elcr = elcr;
__entry->imr = imr;
__entry->coalesced = coalesced;
),
TP_printk("chip %u pin %u (%s%s)%s",
__entry->chip, __entry->pin,
(__entry->elcr & (1 << __entry->pin)) ? "level":"edge",
(__entry->imr & (1 << __entry->pin)) ? "|masked":"",
__entry->coalesced ? " (coalesced)" : "")
);
#define kvm_apic_dst_shorthand \
{0x0, "dst"}, \
{0x1, "self"}, \
{0x2, "all"}, \
{0x3, "all-but-self"}
TRACE_EVENT(kvm_apic_ipi,
TP_PROTO(__u32 icr_low, __u32 dest_id),
TP_ARGS(icr_low, dest_id),
TP_STRUCT__entry(
__field( __u32, icr_low )
__field( __u32, dest_id )
),
TP_fast_assign(
__entry->icr_low = icr_low;
__entry->dest_id = dest_id;
),
TP_printk("dst %x vec %u (%s|%s|%s|%s|%s)",
__entry->dest_id, (u8)__entry->icr_low,
__print_symbolic((__entry->icr_low >> 8 & 0x7),
kvm_deliver_mode),
(__entry->icr_low & (1<<11)) ? "logical" : "physical",
(__entry->icr_low & (1<<14)) ? "assert" : "de-assert",
(__entry->icr_low & (1<<15)) ? "level" : "edge",
__print_symbolic((__entry->icr_low >> 18 & 0x3),
kvm_apic_dst_shorthand))
);
TRACE_EVENT(kvm_apic_accept_irq,
TP_PROTO(__u32 apicid, __u16 dm, __u8 tm, __u8 vec, bool coalesced),
TP_ARGS(apicid, dm, tm, vec, coalesced),
TP_STRUCT__entry(
__field( __u32, apicid )
__field( __u16, dm )
__field( __u8, tm )
__field( __u8, vec )
__field( bool, coalesced )
),
TP_fast_assign(
__entry->apicid = apicid;
__entry->dm = dm;
__entry->tm = tm;
__entry->vec = vec;
__entry->coalesced = coalesced;
),
TP_printk("apicid %x vec %u (%s|%s)%s",
__entry->apicid, __entry->vec,
__print_symbolic((__entry->dm >> 8 & 0x7), kvm_deliver_mode),
__entry->tm ? "level" : "edge",
__entry->coalesced ? " (coalesced)" : "")
);
TRACE_EVENT(kvm_eoi,
TP_PROTO(struct kvm_lapic *apic, int vector),
TP_ARGS(apic, vector),
TP_STRUCT__entry(
__field( __u32, apicid )
__field( int, vector )
),
TP_fast_assign(
__entry->apicid = apic->vcpu->vcpu_id;
__entry->vector = vector;
),
TP_printk("apicid %x vector %d", __entry->apicid, __entry->vector)
);
TRACE_EVENT(kvm_pv_eoi,
TP_PROTO(struct kvm_lapic *apic, int vector),
TP_ARGS(apic, vector),
TP_STRUCT__entry(
__field( __u32, apicid )
__field( int, vector )
),
TP_fast_assign(
__entry->apicid = apic->vcpu->vcpu_id;
__entry->vector = vector;
),
TP_printk("apicid %x vector %d", __entry->apicid, __entry->vector)
);
/*
* Tracepoint for nested VMRUN
*/
TRACE_EVENT(kvm_nested_vmrun,
TP_PROTO(__u64 rip, __u64 vmcb, __u64 nested_rip, __u32 int_ctl,
__u32 event_inj, bool npt),
TP_ARGS(rip, vmcb, nested_rip, int_ctl, event_inj, npt),
TP_STRUCT__entry(
__field( __u64, rip )
__field( __u64, vmcb )
__field( __u64, nested_rip )
__field( __u32, int_ctl )
__field( __u32, event_inj )
__field( bool, npt )
),
TP_fast_assign(
__entry->rip = rip;
__entry->vmcb = vmcb;
__entry->nested_rip = nested_rip;
__entry->int_ctl = int_ctl;
__entry->event_inj = event_inj;
__entry->npt = npt;
),
TP_printk("rip: 0x%016llx vmcb: 0x%016llx nrip: 0x%016llx int_ctl: 0x%08x "
"event_inj: 0x%08x npt: %s",
__entry->rip, __entry->vmcb, __entry->nested_rip,
__entry->int_ctl, __entry->event_inj,
__entry->npt ? "on" : "off")
);
TRACE_EVENT(kvm_nested_intercepts,
TP_PROTO(__u16 cr_read, __u16 cr_write, __u32 exceptions, __u64 intercept),
TP_ARGS(cr_read, cr_write, exceptions, intercept),
TP_STRUCT__entry(
__field( __u16, cr_read )
__field( __u16, cr_write )
__field( __u32, exceptions )
__field( __u64, intercept )
),
TP_fast_assign(
__entry->cr_read = cr_read;
__entry->cr_write = cr_write;
__entry->exceptions = exceptions;
__entry->intercept = intercept;
),
TP_printk("cr_read: %04x cr_write: %04x excp: %08x intercept: %016llx",
__entry->cr_read, __entry->cr_write, __entry->exceptions,
__entry->intercept)
);
/*
* Tracepoint for #VMEXIT while nested
*/
TRACE_EVENT(kvm_nested_vmexit,
TP_PROTO(__u64 rip, __u32 exit_code,
__u64 exit_info1, __u64 exit_info2,
__u32 exit_int_info, __u32 exit_int_info_err, __u32 isa),
TP_ARGS(rip, exit_code, exit_info1, exit_info2,
exit_int_info, exit_int_info_err, isa),
TP_STRUCT__entry(
__field( __u64, rip )
__field( __u32, exit_code )
__field( __u64, exit_info1 )
__field( __u64, exit_info2 )
__field( __u32, exit_int_info )
__field( __u32, exit_int_info_err )
__field( __u32, isa )
),
TP_fast_assign(
__entry->rip = rip;
__entry->exit_code = exit_code;
__entry->exit_info1 = exit_info1;
__entry->exit_info2 = exit_info2;
__entry->exit_int_info = exit_int_info;
__entry->exit_int_info_err = exit_int_info_err;
__entry->isa = isa;
),
TP_printk("rip: 0x%016llx reason: %s ext_inf1: 0x%016llx "
"ext_inf2: 0x%016llx ext_int: 0x%08x ext_int_err: 0x%08x",
__entry->rip,
(__entry->isa == KVM_ISA_VMX) ?
__print_symbolic(__entry->exit_code, VMX_EXIT_REASONS) :
__print_symbolic(__entry->exit_code, SVM_EXIT_REASONS),
__entry->exit_info1, __entry->exit_info2,
__entry->exit_int_info, __entry->exit_int_info_err)
);
/*
* Tracepoint for #VMEXIT reinjected to the guest
*/
TRACE_EVENT(kvm_nested_vmexit_inject,
TP_PROTO(__u32 exit_code,
__u64 exit_info1, __u64 exit_info2,
__u32 exit_int_info, __u32 exit_int_info_err, __u32 isa),
TP_ARGS(exit_code, exit_info1, exit_info2,
exit_int_info, exit_int_info_err, isa),
TP_STRUCT__entry(
__field( __u32, exit_code )
__field( __u64, exit_info1 )
__field( __u64, exit_info2 )
__field( __u32, exit_int_info )
__field( __u32, exit_int_info_err )
__field( __u32, isa )
),
TP_fast_assign(
__entry->exit_code = exit_code;
__entry->exit_info1 = exit_info1;
__entry->exit_info2 = exit_info2;
__entry->exit_int_info = exit_int_info;
__entry->exit_int_info_err = exit_int_info_err;
__entry->isa = isa;
),
TP_printk("reason: %s ext_inf1: 0x%016llx "
"ext_inf2: 0x%016llx ext_int: 0x%08x ext_int_err: 0x%08x",
(__entry->isa == KVM_ISA_VMX) ?
__print_symbolic(__entry->exit_code, VMX_EXIT_REASONS) :
__print_symbolic(__entry->exit_code, SVM_EXIT_REASONS),
__entry->exit_info1, __entry->exit_info2,
__entry->exit_int_info, __entry->exit_int_info_err)
);
/*
* Tracepoint for nested #vmexit because of interrupt pending
*/
TRACE_EVENT(kvm_nested_intr_vmexit,
TP_PROTO(__u64 rip),
TP_ARGS(rip),
TP_STRUCT__entry(
__field( __u64, rip )
),
TP_fast_assign(
__entry->rip = rip
),
TP_printk("rip: 0x%016llx", __entry->rip)
);
/*
* Tracepoint for nested #vmexit because of interrupt pending
*/
TRACE_EVENT(kvm_invlpga,
TP_PROTO(__u64 rip, int asid, u64 address),
TP_ARGS(rip, asid, address),
TP_STRUCT__entry(
__field( __u64, rip )
__field( int, asid )
__field( __u64, address )
),
TP_fast_assign(
__entry->rip = rip;
__entry->asid = asid;
__entry->address = address;
),
TP_printk("rip: 0x%016llx asid: %d address: 0x%016llx",
__entry->rip, __entry->asid, __entry->address)
);
/*
* Tracepoint for nested #vmexit because of interrupt pending
*/
TRACE_EVENT(kvm_skinit,
TP_PROTO(__u64 rip, __u32 slb),
TP_ARGS(rip, slb),
TP_STRUCT__entry(
__field( __u64, rip )
__field( __u32, slb )
),
TP_fast_assign(
__entry->rip = rip;
__entry->slb = slb;
),
TP_printk("rip: 0x%016llx slb: 0x%08x",
__entry->rip, __entry->slb)
);
#define KVM_EMUL_INSN_F_CR0_PE (1 << 0)
#define KVM_EMUL_INSN_F_EFL_VM (1 << 1)
#define KVM_EMUL_INSN_F_CS_D (1 << 2)
#define KVM_EMUL_INSN_F_CS_L (1 << 3)
#define kvm_trace_symbol_emul_flags \
{ 0, "real" }, \
{ KVM_EMUL_INSN_F_CR0_PE \
| KVM_EMUL_INSN_F_EFL_VM, "vm16" }, \
{ KVM_EMUL_INSN_F_CR0_PE, "prot16" }, \
{ KVM_EMUL_INSN_F_CR0_PE \
| KVM_EMUL_INSN_F_CS_D, "prot32" }, \
{ KVM_EMUL_INSN_F_CR0_PE \
| KVM_EMUL_INSN_F_CS_L, "prot64" }
#define kei_decode_mode(mode) ({ \
u8 flags = 0xff; \
switch (mode) { \
case X86EMUL_MODE_REAL: \
flags = 0; \
break; \
case X86EMUL_MODE_VM86: \
flags = KVM_EMUL_INSN_F_EFL_VM; \
break; \
case X86EMUL_MODE_PROT16: \
flags = KVM_EMUL_INSN_F_CR0_PE; \
break; \
case X86EMUL_MODE_PROT32: \
flags = KVM_EMUL_INSN_F_CR0_PE \
| KVM_EMUL_INSN_F_CS_D; \
break; \
case X86EMUL_MODE_PROT64: \
flags = KVM_EMUL_INSN_F_CR0_PE \
| KVM_EMUL_INSN_F_CS_L; \
break; \
} \
flags; \
})
TRACE_EVENT(kvm_emulate_insn,
TP_PROTO(struct kvm_vcpu *vcpu, __u8 failed),
TP_ARGS(vcpu, failed),
TP_STRUCT__entry(
__field( __u64, rip )
__field( __u32, csbase )
__field( __u8, len )
__array( __u8, insn, 15 )
__field( __u8, flags )
__field( __u8, failed )
),
TP_fast_assign(
__entry->rip = vcpu->arch.emulate_ctxt.fetch.start;
__entry->csbase = kvm_x86_ops->get_segment_base(vcpu, VCPU_SREG_CS);
__entry->len = vcpu->arch.emulate_ctxt._eip
- vcpu->arch.emulate_ctxt.fetch.start;
memcpy(__entry->insn,
vcpu->arch.emulate_ctxt.fetch.data,
15);
__entry->flags = kei_decode_mode(vcpu->arch.emulate_ctxt.mode);
__entry->failed = failed;
),
TP_printk("%x:%llx:%s (%s)%s",
__entry->csbase, __entry->rip,
__print_hex(__entry->insn, __entry->len),
__print_symbolic(__entry->flags,
kvm_trace_symbol_emul_flags),
__entry->failed ? " failed" : ""
)
);
#define trace_kvm_emulate_insn_start(vcpu) trace_kvm_emulate_insn(vcpu, 0)
#define trace_kvm_emulate_insn_failed(vcpu) trace_kvm_emulate_insn(vcpu, 1)
TRACE_EVENT(
vcpu_match_mmio,
TP_PROTO(gva_t gva, gpa_t gpa, bool write, bool gpa_match),
TP_ARGS(gva, gpa, write, gpa_match),
TP_STRUCT__entry(
__field(gva_t, gva)
__field(gpa_t, gpa)
__field(bool, write)
__field(bool, gpa_match)
),
TP_fast_assign(
__entry->gva = gva;
__entry->gpa = gpa;
__entry->write = write;
__entry->gpa_match = gpa_match
),
TP_printk("gva %#lx gpa %#llx %s %s", __entry->gva, __entry->gpa,
__entry->write ? "Write" : "Read",
__entry->gpa_match ? "GPA" : "GVA")
);
TRACE_EVENT(kvm_write_tsc_offset,
TP_PROTO(unsigned int vcpu_id, __u64 previous_tsc_offset,
__u64 next_tsc_offset),
TP_ARGS(vcpu_id, previous_tsc_offset, next_tsc_offset),
TP_STRUCT__entry(
__field( unsigned int, vcpu_id )
__field( __u64, previous_tsc_offset )
__field( __u64, next_tsc_offset )
),
TP_fast_assign(
__entry->vcpu_id = vcpu_id;
__entry->previous_tsc_offset = previous_tsc_offset;
__entry->next_tsc_offset = next_tsc_offset;
),
TP_printk("vcpu=%u prev=%llu next=%llu", __entry->vcpu_id,
__entry->previous_tsc_offset, __entry->next_tsc_offset)
);
#ifdef CONFIG_X86_64
#define host_clocks \
{VCLOCK_NONE, "none"}, \
{VCLOCK_TSC, "tsc"}, \
{VCLOCK_HPET, "hpet"} \
TRACE_EVENT(kvm_update_master_clock,
TP_PROTO(bool use_master_clock, unsigned int host_clock, bool offset_matched),
TP_ARGS(use_master_clock, host_clock, offset_matched),
TP_STRUCT__entry(
__field( bool, use_master_clock )
__field( unsigned int, host_clock )
__field( bool, offset_matched )
),
TP_fast_assign(
__entry->use_master_clock = use_master_clock;
__entry->host_clock = host_clock;
__entry->offset_matched = offset_matched;
),
TP_printk("masterclock %d hostclock %s offsetmatched %u",
__entry->use_master_clock,
__print_symbolic(__entry->host_clock, host_clocks),
__entry->offset_matched)
);
TRACE_EVENT(kvm_track_tsc,
TP_PROTO(unsigned int vcpu_id, unsigned int nr_matched,
unsigned int online_vcpus, bool use_master_clock,
unsigned int host_clock),
TP_ARGS(vcpu_id, nr_matched, online_vcpus, use_master_clock,
host_clock),
TP_STRUCT__entry(
__field( unsigned int, vcpu_id )
__field( unsigned int, nr_vcpus_matched_tsc )
__field( unsigned int, online_vcpus )
__field( bool, use_master_clock )
__field( unsigned int, host_clock )
),
TP_fast_assign(
__entry->vcpu_id = vcpu_id;
__entry->nr_vcpus_matched_tsc = nr_matched;
__entry->online_vcpus = online_vcpus;
__entry->use_master_clock = use_master_clock;
__entry->host_clock = host_clock;
),
TP_printk("vcpu_id %u masterclock %u offsetmatched %u nr_online %u"
" hostclock %s",
__entry->vcpu_id, __entry->use_master_clock,
__entry->nr_vcpus_matched_tsc, __entry->online_vcpus,
__print_symbolic(__entry->host_clock, host_clocks))
);
#endif /* CONFIG_X86_64 */
#endif /* _TRACE_KVM_H */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH arch/x86/kvm
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace
/* This part must be outside protection */
#include <trace/define_trace.h>
Reference in New Issue View Git Blame Copy Permalink