From: Avi Kivity <avi@redhat.com>
To: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 16/46] KVM: Add trace points in irqchip code
Date: Sun, 23 Aug 2009 14:56:15 +0300 [thread overview]
Message-ID: <1251028605-31977-17-git-send-email-avi@redhat.com> (raw)
In-Reply-To: <1251028605-31977-1-git-send-email-avi@redhat.com>
From: Gleb Natapov <gleb@redhat.com>
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>
---
arch/x86/kvm/i8259.c | 3 ++
arch/x86/kvm/lapic.c | 4 ++
arch/x86/kvm/trace.h | 85 ++++++++++++++++++++++++++++++++++++++++++++
include/trace/events/kvm.h | 56 +++++++++++++++++++++++++++++
virt/kvm/ioapic.c | 2 +
virt/kvm/irq_comm.c | 2 +
6 files changed, 152 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index 1d1bb75..e4bcbdd 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -30,6 +30,7 @@
#include "irq.h"
#include <linux/kvm_host.h>
+#include "trace.h"
static void pic_lock(struct kvm_pic *s)
__acquires(&s->lock)
@@ -190,6 +191,8 @@ int kvm_pic_set_irq(void *opaque, int irq, int level)
if (irq >= 0 && irq < PIC_NUM_PINS) {
ret = pic_set_irq1(&s->pics[irq >> 3], irq & 7, level);
pic_update_irq(s);
+ trace_kvm_pic_set_irq(irq >> 3, irq & 7, s->pics[irq >> 3].elcr,
+ s->pics[irq >> 3].imr, ret == 0);
}
pic_unlock(s);
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 31f1d1c..3b03ebd 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -375,6 +375,8 @@ static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode,
break;
result = !apic_test_and_set_irr(vector, apic);
+ trace_kvm_apic_accept_irq(vcpu->vcpu_id, delivery_mode,
+ trig_mode, vector, result);
if (!result) {
if (trig_mode)
apic_debug("level trig mode repeatedly for "
@@ -493,6 +495,8 @@ static void apic_send_ipi(struct kvm_lapic *apic)
else
irq.dest_id = GET_APIC_DEST_FIELD(icr_high);
+ trace_kvm_apic_ipi(icr_low, irq.dest_id);
+
apic_debug("icr_high 0x%x, icr_low 0x%x, "
"short_hand 0x%x, dest 0x%x, trig_mode 0x%x, level 0x%x, "
"dest_mode 0x%x, delivery_mode 0x%x, vector 0x%x\n",
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index 6c2c87f..0d480e7 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -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 */
diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h
index 77022af..dbe1084 100644
--- a/include/trace/events/kvm.h
+++ b/include/trace/events/kvm.h
@@ -28,6 +28,62 @@ TRACE_EVENT(kvm_set_irq,
__entry->gsi, __entry->level, __entry->irq_source_id)
);
+#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_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 %u vec %x (%s|%s|%s%s)",
+ (u8)(__entry->address >> 12), (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"}, \
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 92496ff..b91fbb2 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -36,6 +36,7 @@
#include <asm/processor.h>
#include <asm/page.h>
#include <asm/current.h>
+#include <trace/events/kvm.h>
#include "ioapic.h"
#include "lapic.h"
@@ -193,6 +194,7 @@ int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level)
(!edge && !entry.fields.remote_irr))
ret = ioapic_service(ioapic, irq);
}
+ trace_kvm_ioapic_set_irq(entry.bits, irq, ret == 0);
}
return ret;
}
diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c
index a9d7fd1..001663f 100644
--- a/virt/kvm/irq_comm.c
+++ b/virt/kvm/irq_comm.c
@@ -100,6 +100,8 @@ static int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e,
{
struct kvm_lapic_irq irq;
+ trace_kvm_msi_set_irq(e->msi.address_lo, e->msi.data);
+
irq.dest_id = (e->msi.address_lo &
MSI_ADDR_DEST_ID_MASK) >> MSI_ADDR_DEST_ID_SHIFT;
irq.vector = (e->msi.data &
--
1.6.4.1
next prev parent reply other threads:[~2009-08-23 11:58 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-23 11:55 [PATCH 00/46] KVM updates for 2.6.32 merge window (3/4) Avi Kivity
2009-08-23 11:56 ` [PATCH 01/46] KVM: Trace irq level and source id Avi Kivity
2009-08-23 11:56 ` [PATCH 02/46] KVM: Ignore PCI ECS I/O enablement Avi Kivity
2009-08-23 11:56 ` [PATCH 03/46] KVM: Trace mmio Avi Kivity
2009-08-23 11:56 ` [PATCH 04/46] KVM: Trace apic registers using their symbolic names Avi Kivity
2009-08-23 11:56 ` [PATCH 05/46] KVM: Add Directed EOI support to APIC emulation Avi Kivity
2009-08-23 11:56 ` [PATCH 06/46] KVM: x2apic interface to lapic Avi Kivity
2009-08-23 11:56 ` [PATCH 07/46] KVM: Use temporary variable to shorten lines Avi Kivity
2009-08-23 11:56 ` [PATCH 08/46] KVM: Fix apic_mmio_write return for unaligned write Avi Kivity
2009-08-23 11:56 ` [PATCH 09/46] KVM: handle AMD microcode MSR Avi Kivity
2009-08-23 11:56 ` [PATCH 10/46] Revert "KVM: x86: check for cr3 validity in ioctl_set_sregs" Avi Kivity
2009-08-23 11:56 ` [PATCH 11/46] KVM: MMU: Trace guest pagetable walker Avi Kivity
2009-08-23 11:56 ` [PATCH 12/46] KVM: Document basic API Avi Kivity
2009-08-23 11:56 ` [PATCH 13/46] KVM: Trace shadow page lifecycle Avi Kivity
2009-08-23 11:56 ` [PATCH 14/46] KVM: fix MMIO_CONF_BASE MSR access Avi Kivity
2009-08-23 11:56 ` [PATCH 15/46] KVM: ignore msi request if !level Avi Kivity
2009-08-23 11:56 ` Avi Kivity [this message]
2009-08-23 11:56 ` [PATCH 17/46] KVM: No need to kick cpu if not in a guest mode Avi Kivity
2009-08-23 11:56 ` [PATCH 18/46] KVM: Always report x2apic as supported feature Avi Kivity
2009-08-23 11:56 ` [PATCH 19/46] KVM: PIT support for HPET legacy mode Avi Kivity
2009-08-23 11:56 ` [PATCH 20/46] KVM: add module parameters documentation Avi Kivity
2009-08-23 11:56 ` [PATCH 21/46] KVM: make io_bus interface more robust Avi Kivity
2009-08-23 11:56 ` [PATCH 22/46] KVM: add ioeventfd support Avi Kivity
2009-08-23 11:56 ` [PATCH 23/46] KVM: MMU: Fix MMU_DEBUG compile breakage Avi Kivity
2009-08-23 11:56 ` [PATCH 24/46] KVM: Move exception handling to the same place as other events Avi Kivity
2009-08-23 11:56 ` [PATCH 25/46] KVM: Move kvm_cpu_get_interrupt() declaration to x86 code Avi Kivity
2009-08-23 11:56 ` [PATCH 26/46] KVM: Reduce runnability interface with arch support code Avi Kivity
2009-08-23 11:56 ` [PATCH 27/46] KVM: silence lapic kernel messages that can be triggered by a guest Avi Kivity
2009-08-23 11:56 ` [PATCH 28/46] KVM: Discard unnecessary kvm_mmu_flush_tlb() in kvm_mmu_load() Avi Kivity
2009-08-23 11:56 ` [PATCH 29/46] KVM: MMU: fix missing locking in alloc_mmu_pages Avi Kivity
2009-08-23 11:56 ` [PATCH 30/46] KVM: s390: remove unused structs Avi Kivity
2009-08-23 11:56 ` [PATCH 31/46] KVM: x86: use get_desc_base() and get_desc_limit() Avi Kivity
2009-08-23 11:56 ` [PATCH 32/46] KVM: x86: use kvm_get_gdt() and kvm_read_ldt() Avi Kivity
2009-08-23 11:56 ` [PATCH 33/46] KVM: VMX: Introduce KVM_SET_IDENTITY_MAP_ADDR ioctl Avi Kivity
2009-08-23 11:56 ` [PATCH 34/46] KVM: PIT: Unregister ack notifier callback when freeing Avi Kivity
2009-08-23 11:56 ` [PATCH 35/46] KVM: Drop obsolete cpu_get/put in make_all_cpus_request Avi Kivity
2009-08-23 11:56 ` [PATCH 36/46] KVM: VMX: Avoid to return ENOTSUPP to userland Avi Kivity
2009-08-23 11:56 ` [PATCH 37/46] KVM: Align cr8 threshold when userspace changes cr8 Avi Kivity
2009-08-23 11:56 ` [PATCH 38/46] KVM: limit lapic periodic timer frequency Avi Kivity
2009-08-23 11:56 ` [PATCH 39/46] KVM: fix kvm_init() error handling Avi Kivity
2009-08-23 11:56 ` [PATCH 40/46] KVM: MMU: make rmap code aware of mapping levels Avi Kivity
2009-08-23 11:56 ` [PATCH 41/46] KVM: MMU: rename is_largepage_backed to mapping_level Avi Kivity
2009-08-23 11:56 ` [PATCH 42/46] KVM: MMU: make direct mapping paths aware of mapping levels Avi Kivity
2009-08-23 11:56 ` [PATCH 43/46] KVM: MMU: make page walker " Avi Kivity
2009-08-23 11:56 ` [PATCH 44/46] KVM: MMU: shadow support for 1gb pages Avi Kivity
2009-08-23 11:56 ` [PATCH 45/46] KVM: MMU: enable gbpages by increasing nr of pagesizes Avi Kivity
2009-08-23 11:56 ` [PATCH 46/46] KVM: report 1GB page support to userspace Avi Kivity
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