[lttng-dev] [PATCH lttng-modules 2/2] Added support for kvm x86 specific tracepoints.
Mathieu Desnoyers
mathieu.desnoyers at efficios.com
Mon Jul 8 12:53:49 EDT 2013
merged, thanks!
* Mohamad Gebai (mohamad.gebai at gmail.com) wrote:
> Two new probes for kvm-x86 and kvm-x86-mmu.
>
> Signed-off-by: Mohamad Gebai <mohamad.gebai at polymtl.ca>
> ---
> .../events/lttng-module/arch/x86/kvm/mmutrace.h | 285 +++++++
> .../events/lttng-module/arch/x86/kvm/trace.h | 833 ++++++++++++++++++++
> probes/Makefile | 17 +-
> probes/lttng-probe-kvm-x86-mmu.c | 43 +
> probes/lttng-probe-kvm-x86.c | 45 ++
> 5 files changed, 1222 insertions(+), 1 deletion(-)
> create mode 100644 instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h
> create mode 100644 instrumentation/events/lttng-module/arch/x86/kvm/trace.h
> create mode 100644 probes/lttng-probe-kvm-x86-mmu.c
> create mode 100644 probes/lttng-probe-kvm-x86.c
>
> diff --git a/instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h b/instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h
> new file mode 100644
> index 0000000..56ddbab
> --- /dev/null
> +++ b/instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h
> @@ -0,0 +1,285 @@
> +#if !defined(_TRACE_KVMMMU_H) || defined(TRACE_HEADER_MULTI_READ)
> +#define _TRACE_KVMMMU_H
> +
> +#include <linux/tracepoint.h>
> +#include <linux/ftrace_event.h>
> +
> +#undef TRACE_SYSTEM
> +#define TRACE_SYSTEM kvmmmu
> +
> +#define KVM_MMU_PAGE_FIELDS \
> + __field(__u64, gfn) \
> + __field(__u32, role) \
> + __field(__u32, root_count) \
> + __field(bool, unsync)
> +
> +#define KVM_MMU_PAGE_ASSIGN(sp) \
> + tp_assign(gfn, sp->gfn) \
> + tp_assign(role, sp->role.word) \
> + tp_assign(root_count, sp->root_count) \
> + tp_assign(unsync, sp->unsync)
> +
> +#define KVM_MMU_PAGE_PRINTK() ({ \
> + const char *ret = p->buffer + p->len; \
> + static const char *access_str[] = { \
> + "---", "--x", "w--", "w-x", "-u-", "-ux", "wu-", "wux" \
> + }; \
> + union kvm_mmu_page_role role; \
> + \
> + role.word = __entry->role; \
> + \
> + trace_seq_printf(p, "sp gfn %llx %u%s q%u%s %s%s" \
> + " %snxe root %u %s%c", \
> + __entry->gfn, role.level, \
> + role.cr4_pae ? " pae" : "", \
> + role.quadrant, \
> + role.direct ? " direct" : "", \
> + access_str[role.access], \
> + role.invalid ? " invalid" : "", \
> + role.nxe ? "" : "!", \
> + __entry->root_count, \
> + __entry->unsync ? "unsync" : "sync", 0); \
> + ret; \
> + })
> +
> +#define kvm_mmu_trace_pferr_flags \
> + { PFERR_PRESENT_MASK, "P" }, \
> + { PFERR_WRITE_MASK, "W" }, \
> + { PFERR_USER_MASK, "U" }, \
> + { PFERR_RSVD_MASK, "RSVD" }, \
> + { PFERR_FETCH_MASK, "F" }
> +
> +/*
> + * A pagetable walk has started
> + */
> +TRACE_EVENT(
> + kvm_mmu_pagetable_walk,
> + TP_PROTO(u64 addr, u32 pferr),
> + TP_ARGS(addr, pferr),
> +
> + TP_STRUCT__entry(
> + __field(__u64, addr)
> + __field(__u32, pferr)
> + ),
> +
> + TP_fast_assign(
> + tp_assign(addr, addr)
> + tp_assign(pferr, pferr)
> + ),
> +
> + TP_printk("addr %llx pferr %x %s", __entry->addr, __entry->pferr,
> + __print_flags(__entry->pferr, "|", kvm_mmu_trace_pferr_flags))
> +)
> +
> +
> +/* We just walked a paging element */
> +TRACE_EVENT(
> + kvm_mmu_paging_element,
> + TP_PROTO(u64 pte, int level),
> + TP_ARGS(pte, level),
> +
> + TP_STRUCT__entry(
> + __field(__u64, pte)
> + __field(__u32, level)
> + ),
> +
> + TP_fast_assign(
> + tp_assign(pte, pte)
> + tp_assign(level, level)
> + ),
> +
> + TP_printk("pte %llx level %u", __entry->pte, __entry->level)
> +)
> +
> +DECLARE_EVENT_CLASS(kvm_mmu_set_bit_class,
> +
> + TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
> +
> + TP_ARGS(table_gfn, index, size),
> +
> + TP_STRUCT__entry(
> + __field(__u64, gpa)
> + ),
> +
> + TP_fast_assign(
> + tp_assign(gpa, ((u64)table_gfn << PAGE_SHIFT)
> + + index * size)
> + ),
> +
> + TP_printk("gpa %llx", __entry->gpa)
> +)
> +
> +/* We set a pte accessed bit */
> +DEFINE_EVENT(kvm_mmu_set_bit_class, kvm_mmu_set_accessed_bit,
> +
> + TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
> +
> + TP_ARGS(table_gfn, index, size)
> +)
> +
> +/* We set a pte dirty bit */
> +DEFINE_EVENT(kvm_mmu_set_bit_class, kvm_mmu_set_dirty_bit,
> +
> + TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
> +
> + TP_ARGS(table_gfn, index, size)
> +)
> +
> +TRACE_EVENT(
> + kvm_mmu_walker_error,
> + TP_PROTO(u32 pferr),
> + TP_ARGS(pferr),
> +
> + TP_STRUCT__entry(
> + __field(__u32, pferr)
> + ),
> +
> + TP_fast_assign(
> + tp_assign(pferr, pferr)
> + ),
> +
> + TP_printk("pferr %x %s", __entry->pferr,
> + __print_flags(__entry->pferr, "|", kvm_mmu_trace_pferr_flags))
> +)
> +
> +TRACE_EVENT(
> + kvm_mmu_get_page,
> + TP_PROTO(struct kvm_mmu_page *sp, bool created),
> + TP_ARGS(sp, created),
> +
> + TP_STRUCT__entry(
> + KVM_MMU_PAGE_FIELDS
> + __field(bool, created)
> + ),
> +
> + TP_fast_assign(
> + KVM_MMU_PAGE_ASSIGN(sp)
> + tp_assign(created, created)
> + ),
> +
> + TP_printk("%s %s", KVM_MMU_PAGE_PRINTK(),
> + __entry->created ? "new" : "existing")
> +)
> +
> +DECLARE_EVENT_CLASS(kvm_mmu_page_class,
> +
> + TP_PROTO(struct kvm_mmu_page *sp),
> + TP_ARGS(sp),
> +
> + TP_STRUCT__entry(
> + KVM_MMU_PAGE_FIELDS
> + ),
> +
> + TP_fast_assign(
> + KVM_MMU_PAGE_ASSIGN(sp)
> + ),
> +
> + TP_printk("%s", KVM_MMU_PAGE_PRINTK())
> +)
> +
> +DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_sync_page,
> + TP_PROTO(struct kvm_mmu_page *sp),
> +
> + TP_ARGS(sp)
> +)
> +
> +DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_unsync_page,
> + TP_PROTO(struct kvm_mmu_page *sp),
> +
> + TP_ARGS(sp)
> +)
> +
> +DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_prepare_zap_page,
> + TP_PROTO(struct kvm_mmu_page *sp),
> +
> + TP_ARGS(sp)
> +)
> +
> +TRACE_EVENT(
> + mark_mmio_spte,
> + TP_PROTO(u64 *sptep, gfn_t gfn, unsigned access),
> + TP_ARGS(sptep, gfn, access),
> +
> + TP_STRUCT__entry(
> + __field(void *, sptep)
> + __field(gfn_t, gfn)
> + __field(unsigned, access)
> + ),
> +
> + TP_fast_assign(
> + tp_assign(sptep, sptep)
> + tp_assign(gfn, gfn)
> + tp_assign(access, access)
> + ),
> +
> + TP_printk("sptep:%p gfn %llx access %x", __entry->sptep, __entry->gfn,
> + __entry->access)
> +)
> +
> +TRACE_EVENT(
> + handle_mmio_page_fault,
> + TP_PROTO(u64 addr, gfn_t gfn, unsigned access),
> + TP_ARGS(addr, gfn, access),
> +
> + TP_STRUCT__entry(
> + __field(u64, addr)
> + __field(gfn_t, gfn)
> + __field(unsigned, access)
> + ),
> +
> + TP_fast_assign(
> + tp_assign(addr, addr)
> + tp_assign(gfn, gfn)
> + tp_assign(access, access)
> + ),
> +
> + TP_printk("addr:%llx gfn %llx access %x", __entry->addr, __entry->gfn,
> + __entry->access)
> +)
> +
> +#define __spte_satisfied(__spte) \
> + (__entry->retry && is_writable_pte(__entry->__spte))
> +
> +TRACE_EVENT(
> + fast_page_fault,
> + TP_PROTO(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code,
> + u64 *sptep, u64 old_spte, bool retry),
> + TP_ARGS(vcpu, gva, error_code, sptep, old_spte, retry),
> +
> + TP_STRUCT__entry(
> + __field(int, vcpu_id)
> + __field(gva_t, gva)
> + __field(u32, error_code)
> + __field(u64 *, sptep)
> + __field(u64, old_spte)
> + __field(u64, new_spte)
> + __field(bool, retry)
> + ),
> +
> + TP_fast_assign(
> + tp_assign(vcpu_id, vcpu->vcpu_id)
> + tp_assign(gva, gva)
> + tp_assign(error_code, error_code)
> + tp_assign(sptep, sptep)
> + tp_assign(old_spte, old_spte)
> + tp_assign(new_spte, *sptep)
> + tp_assign(retry, retry)
> + ),
> +
> + TP_printk("vcpu %d gva %lx error_code %s sptep %p old %#llx"
> + " new %llx spurious %d fixed %d", __entry->vcpu_id,
> + __entry->gva, __print_flags(__entry->error_code, "|",
> + kvm_mmu_trace_pferr_flags), __entry->sptep,
> + __entry->old_spte, __entry->new_spte,
> + __spte_satisfied(old_spte), __spte_satisfied(new_spte)
> + )
> +)
> +#endif /* _TRACE_KVMMMU_H */
> +
> +#undef TRACE_INCLUDE_PATH
> +#define TRACE_INCLUDE_PATH ../instrumentation/events/lttng-module/arch/x86/kvm
> +#undef TRACE_INCLUDE_FILE
> +#define TRACE_INCLUDE_FILE mmutrace
> +
> +/* This part must be outside protection */
> +#include "../../../../../../probes/define_trace.h"
> diff --git a/instrumentation/events/lttng-module/arch/x86/kvm/trace.h b/instrumentation/events/lttng-module/arch/x86/kvm/trace.h
> new file mode 100644
> index 0000000..8e71a7f
> --- /dev/null
> +++ b/instrumentation/events/lttng-module/arch/x86/kvm/trace.h
> @@ -0,0 +1,833 @@
> +#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>
> +#include <linux/version.h>
> +#include <../arch/x86/kvm/lapic.h>
> +#include <../arch/x86/kvm/kvm_cache_regs.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(
> + tp_assign(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(
> + tp_assign(nr, nr)
> + tp_assign(a0, a0)
> + tp_assign(a1, a1)
> + tp_assign(a2, a2)
> + tp_assign(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(
> + tp_assign(rep_cnt, rep_cnt)
> + tp_assign(rep_idx, rep_idx)
> + tp_assign(ingpa, ingpa)
> + tp_assign(outgpa, outgpa)
> + tp_assign(code, code)
> + tp_assign(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(
> + tp_assign(rw, rw)
> + tp_assign(port, port)
> + tp_assign(size, size)
> + tp_assign(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(
> + tp_assign(function, function)
> + tp_assign(rax, rax)
> + tp_assign(rbx, rbx)
> + tp_assign(rcx, rcx)
> + tp_assign(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(
> + tp_assign(rw, rw)
> + tp_assign(reg, reg)
> + tp_assign(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, u64 info1, u64 info2),
> + TP_ARGS(exit_reason, vcpu, isa, info1, info2),
> +
> + 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(
> + tp_assign(exit_reason, exit_reason)
> + tp_assign(guest_rip, kvm_rip_read(vcpu))
> + tp_assign(isa, isa)
> + kvm_x86_ops->get_exit_info(vcpu, &info1,
> + &info2);
> + tp_assign(info1, info1)
> + tp_assign(info2, info2)
> + ),
> +
> + TP_printk("reason %s rip 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(
> + tp_assign(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(
> + tp_assign(exception, exception)
> + tp_assign(has_error, has_error)
> + tp_assign(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(
> + tp_assign(fault_address, fault_address)
> + tp_assign(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(
> + tp_assign(write, write)
> + tp_assign(ecx, ecx)
> + tp_assign(data, data)
> + tp_assign(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(
> + tp_assign(rw, rw)
> + tp_assign(cr, cr)
> + tp_assign(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(
> + tp_assign(chip, chip)
> + tp_assign(pin, pin)
> + tp_assign(elcr, elcr)
> + tp_assign(imr, imr)
> + tp_assign(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(
> + tp_assign(icr_low, icr_low)
> + tp_assign(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(
> + tp_assign(apicid, apicid)
> + tp_assign(dm, dm)
> + tp_assign(tm, tm)
> + tp_assign(vec, vec)
> + tp_assign(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(
> + tp_assign(apicid, apic->vcpu->vcpu_id)
> + tp_assign(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(
> + tp_assign(apicid, apic->vcpu->vcpu_id)
> + tp_assign(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(
> + tp_assign(rip, rip)
> + tp_assign(vmcb, vmcb)
> + tp_assign(nested_rip, nested_rip)
> + tp_assign(int_ctl, int_ctl)
> + tp_assign(event_inj, event_inj)
> + tp_assign(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(
> + tp_assign(cr_read, cr_read)
> + tp_assign(cr_write, cr_write)
> + tp_assign(exceptions, exceptions)
> + tp_assign(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(
> + tp_assign(rip, rip)
> + tp_assign(exit_code, exit_code)
> + tp_assign(exit_info1, exit_info1)
> + tp_assign(exit_info2, exit_info2)
> + tp_assign(exit_int_info, exit_int_info)
> + tp_assign(exit_int_info_err, exit_int_info_err)
> + tp_assign(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(
> + tp_assign(exit_code, exit_code)
> + tp_assign(exit_info1, exit_info1)
> + tp_assign(exit_info2, exit_info2)
> + tp_assign(exit_int_info, exit_int_info)
> + tp_assign(exit_int_info_err, exit_int_info_err)
> + tp_assign(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(
> + tp_assign(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(
> + tp_assign(rip, rip)
> + tp_assign(asid, asid)
> + tp_assign(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(
> + tp_assign(rip, rip)
> + tp_assign(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(
> + tp_assign(rip, vcpu->arch.emulate_ctxt.fetch.start)
> + tp_assign(csbase, kvm_x86_ops->get_segment_base(vcpu, VCPU_SREG_CS))
> + tp_assign(len, vcpu->arch.emulate_ctxt._eip
> + - vcpu->arch.emulate_ctxt.fetch.start)
> + tp_memcpy(insn,
> + vcpu->arch.emulate_ctxt.fetch.data,
> + 15)
> + tp_assign(flags, kei_decode_mode(vcpu->arch.emulate_ctxt.mode))
> + tp_assign(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(
> + tp_assign(gva, gva)
> + tp_assign(gpa, gpa)
> + tp_assign(write, write)
> + tp_assign(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")
> +)
> +
> +#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(
> + tp_assign(use_master_clock, use_master_clock)
> + tp_assign(host_clock, host_clock)
> + tp_assign(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(
> + tp_assign(vcpu_id, vcpu_id)
> + tp_assign(nr_vcpus_matched_tsc, nr_matched)
> + tp_assign(online_vcpus, online_vcpus)
> + tp_assign(use_master_clock, use_master_clock)
> + tp_assign(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 ../instrumentation/events/lttng-module/arch/x86/kvm
> +#undef TRACE_INCLUDE_FILE
> +#define TRACE_INCLUDE_FILE trace
> +
> +/* This part must be outside protection */
> +#include "../../../../../../probes/define_trace.h"
> diff --git a/probes/Makefile b/probes/Makefile
> index 225803c..13bf208 100644
> --- a/probes/Makefile
> +++ b/probes/Makefile
> @@ -18,7 +18,22 @@ obj-m += lttng-probe-power.o
> obj-m += lttng-probe-statedump.o
>
> ifneq ($(CONFIG_KVM),)
> -obj-m += lttng-probe-kvm.o
> +kvm = lttng-probe-kvm.o
> +ifneq ($(CONFIG_X86),)
> +kvm_dep = $(srctree)/virt/kvm/iodev.h
> +kvm_x86 = lttng-probe-kvm-x86.o
> +kvm_x86_mmu = lttng-probe-kvm-x86-mmu.o
> +kvm_path = $(srctree)/virt/kvm
> +ifeq ($(wildcard $(kvm_dep)),)
> +$(warning Files $(kvm_dep) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
> +kvm_x86 =
> +kvm_path =
> +endif
> +obj-m += $(kvm_x86)
> +obj-m += $(kvm_x86_mmu)
> +ccflags-y += -I$(kvm_path)
> +endif
> +obj-m += $(kvm)
> endif
>
> obj-m += $(shell \
> diff --git a/probes/lttng-probe-kvm-x86-mmu.c b/probes/lttng-probe-kvm-x86-mmu.c
> new file mode 100644
> index 0000000..f0cbf88
> --- /dev/null
> +++ b/probes/lttng-probe-kvm-x86-mmu.c
> @@ -0,0 +1,43 @@
> +/*
> + * probes/lttng-probe-kvm.c
> + *
> + * LTTng kvm probes.
> + *
> + * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
> + *
> + * This library is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU Lesser General Public
> + * License as published by the Free Software Foundation; only
> + * version 2.1 of the License.
> + *
> + * This library is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public
> + * License along with this library; if not, write to the Free Software
> + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> + */
> +
> +#include <linux/module.h>
> +#include <linux/kvm_host.h>
> +
> +/*
> + * Create the tracepoint static inlines from the kernel to validate that our
> + * trace event macros match the kernel we run on.
> + */
> +#include "../wrapper/tracepoint.h"
> +
> +/*
> + * Create LTTng tracepoint probes.
> + */
> +#define LTTNG_PACKAGE_BUILD
> +#define CREATE_TRACE_POINTS
> +
> +#define TRACE_INCLUDE_PATH ../instrumentation/events/lttng-module/arch/x86/kvm
> +#include "../instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h"
> +
> +MODULE_LICENSE("GPL and additional rights");
> +MODULE_AUTHOR("Mathieu Desnoyers <mathieu.desnoyers at efficios.com>");
> +MODULE_DESCRIPTION("LTTng kvm mmu probes");
> diff --git a/probes/lttng-probe-kvm-x86.c b/probes/lttng-probe-kvm-x86.c
> new file mode 100644
> index 0000000..abc93a8
> --- /dev/null
> +++ b/probes/lttng-probe-kvm-x86.c
> @@ -0,0 +1,45 @@
> +/*
> + * probes/lttng-probe-kvm.c
> + *
> + * LTTng kvm probes.
> + *
> + * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
> + *
> + * This library is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU Lesser General Public
> + * License as published by the Free Software Foundation; only
> + * version 2.1 of the License.
> + *
> + * This library is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public
> + * License along with this library; if not, write to the Free Software
> + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> + */
> +
> +#include <linux/module.h>
> +#include <linux/kvm_host.h>
> +
> +/*
> + * Create the tracepoint static inlines from the kernel to validate that our
> + * trace event macros match the kernel we run on.
> + */
> +#include <trace/events/kvm.h>
> +
> +#include "../wrapper/tracepoint.h"
> +
> +/*
> + * Create LTTng tracepoint probes.
> + */
> +#define LTTNG_PACKAGE_BUILD
> +#define CREATE_TRACE_POINTS
> +
> +#define TRACE_INCLUDE_PATH ../instrumentation/events/lttng-module/arch/x86/kvm
> +#include "../instrumentation/events/lttng-module/arch/x86/kvm/trace.h"
> +
> +MODULE_LICENSE("GPL and additional rights");
> +MODULE_AUTHOR("Mathieu Desnoyers <mathieu.desnoyers at efficios.com>");
> +MODULE_DESCRIPTION("LTTng kvm probes");
> --
> 1.7.10.4
>
>
> _______________________________________________
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> lttng-dev at lists.lttng.org
> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
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