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KVM: Add trace points in irqchip code

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Add tracepoint in msi/ioapic/pic set_irq() functions,
in IPI sending and in the point where IRQ is placed into
apic's IRR.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Gleb Natapov
2009-07-07 16:00:57 +03:00
committed by Avi Kivity
parent 07fb8bb29f
commit 1000ff8d89
6 changed files with 152 additions and 0 deletions
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85
arch/x86/kvm/trace.h
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@@ -264,6 +264,91 @@ TRACE_EVENT(kvm_cr,
#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)" : "")
);
#endif /* _TRACE_KVM_H */
/* This part must be outside protection */