This include both userspace and in-kernel ioapic. Note that the numbers
can be inaccurate for kvm-ioapic. One reason is the same with
kvm-i8259, that when irqfd is used, irqs can be delivered all inside
kernel without our notice. Meanwhile, kvm-ioapic is specially treated
when irq numbers <ISA_NUM_IRQS, those irqs will be delivered in kernel
too via kvm-i8259 (please refer to kvm_pc_gsi_handler).
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <
20171229073104.3810-5-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
static void kvm_ioapic_set_irq(void *opaque, int irq, int level)
{
KVMIOAPICState *s = opaque;
+ IOAPICCommonState *common = IOAPIC_COMMON(s);
int delivered;
+ ioapic_stat_update_irq(common, irq, level);
delivered = kvm_set_irq(kvm_state, s->kvm_gsi_base + irq, level);
apic_report_irq_delivered(delivered);
}
* the cleanest way of doing it but it should work. */
trace_ioapic_set_irq(vector, level);
+ ioapic_stat_update_irq(s, vector, level);
if (vector == 0) {
vector = 2;
}
*/
int ioapic_no;
+void ioapic_stat_update_irq(IOAPICCommonState *s, int irq, int level)
+{
+ if (level != s->irq_level[irq]) {
+ s->irq_level[irq] = level;
+ if (level == 1) {
+ s->irq_count[irq]++;
+ }
+ }
+}
+
+static bool ioapic_get_statistics(InterruptStatsProvider *obj,
+ uint64_t **irq_counts,
+ unsigned int *nb_irqs)
+{
+ IOAPICCommonState *s = IOAPIC_COMMON(obj);
+
+ *irq_counts = s->irq_count;
+ *nb_irqs = IOAPIC_NUM_PINS;
+
+ return true;
+}
+
static void ioapic_irr_dump(Monitor *mon, const char *name, uint32_t bitmap)
{
int i;
dc->realize = ioapic_common_realize;
dc->vmsd = &vmstate_ioapic_common;
ic->print_info = ioapic_print_info;
+ ic->get_statistics = ioapic_get_statistics;
}
static const TypeInfo ioapic_common_type = {
uint64_t ioredtbl[IOAPIC_NUM_PINS];
Notifier machine_done;
uint8_t version;
+ uint64_t irq_count[IOAPIC_NUM_PINS];
+ int irq_level[IOAPIC_NUM_PINS];
};
void ioapic_reset_common(DeviceState *dev);
void ioapic_print_redtbl(Monitor *mon, IOAPICCommonState *s);
+void ioapic_stat_update_irq(IOAPICCommonState *s, int irq, int level);
#endif /* QEMU_IOAPIC_INTERNAL_H */