Signed-off-by: Gregory Haskins <[EMAIL PROTECTED]>
---
drivers/kvm/kvm.h | 6 ++++++
drivers/kvm/kvm_main.c | 23 ++++++++++++++++++++---
drivers/kvm/svm.c | 2 ++
drivers/kvm/vmx.c | 2 ++
4 files changed, 30 insertions(+), 3 deletions(-)
diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
index 76582e2..57b6d14 100644
--- a/drivers/kvm/kvm.h
+++ b/drivers/kvm/kvm.h
@@ -279,6 +279,12 @@ struct kvm_stat {
u32 irq_exits;
u32 light_exits;
u32 efer_reload;
+ u32 irq_posted;
+ u32 irq_ignored;
+ u32 irq_accepted;
+ u32 guest_preempt;
+ u32 apic_mmio;
+ u32 local_mmio;
};
struct kvm_io_device {
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 2a1b376..79b6477 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -73,6 +73,12 @@ static struct kvm_stats_debugfs_item {
{ "irq_exits", STAT_OFFSET(irq_exits) },
{ "light_exits", STAT_OFFSET(light_exits) },
{ "efer_reload", STAT_OFFSET(efer_reload) },
+ { "irq_posted", STAT_OFFSET(irq_posted) },
+ { "irq_ignored", STAT_OFFSET(irq_ignored) },
+ { "irq_accepted", STAT_OFFSET(irq_accepted) },
+ { "guest_preempt", STAT_OFFSET(guest_preempt) },
+ { "apic_mmio", STAT_OFFSET(apic_mmio) },
+ { "local_mmio", STAT_OFFSET(local_mmio) },
{ NULL }
};
@@ -1136,13 +1142,19 @@ static struct kvm_io_device *vcpu_find_mmio_dev(struct
kvm_vcpu *vcpu,
/*
* First check if the LAPIC will snarf this request
*/
- if (dev && dev->in_range(dev, addr))
+ if (dev && dev->in_range(dev, addr)) {
+ ++vcpu->stat.apic_mmio;
return dev;
+ }
/*
* And then fallback to allow any device to participate
*/
- return kvm_io_bus_find_dev(&vcpu->kvm->mmio_bus, addr);
+ dev = kvm_io_bus_find_dev(&vcpu->kvm->mmio_bus, addr);
+ if (dev)
+ ++vcpu->stat.local_mmio;
+
+ return dev;
}
static int emulator_read_emulated(unsigned long addr,
@@ -2446,6 +2458,8 @@ static void kvm_vcpu_intr(struct kvm_irqsink *this,
struct kvm_vcpu *vcpu = (struct kvm_vcpu*)this->private;
int direct_ipi = -1;
+ ++vcpu->stat.irq_posted;
+
spin_lock_irq(&vcpu->irq.lock);
if (!test_bit(pin, &vcpu->irq.pending)) {
@@ -2465,8 +2479,11 @@ static void kvm_vcpu_intr(struct kvm_irqsink *this,
*/
direct_ipi = vcpu->irq.guest_cpu;
BUG_ON(direct_ipi == smp_processor_id());
+ ++vcpu->stat.guest_preempt;
}
- }
+ } else
+ ++vcpu->stat.irq_ignored;
+
spin_unlock_irq(&vcpu->irq.lock);
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index ccc5856..61dfee2 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -1435,6 +1435,8 @@ static void do_intr_requests(struct kvm_vcpu *vcpu,
control->int_ctl |= V_IRQ_MASK |
((/*control->int_vector >> 4*/ 0xf) <<
V_INTR_PRIO_SHIFT);
+
+ ++vcpu->stat.irq_accepted;
}
}
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index 7923a42..1dd8c9c 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -1545,6 +1545,8 @@ static void do_intr_requests(struct kvm_vcpu *vcpu,
ack.vector |
INTR_TYPE_EXT_INTR |
INTR_INFO_VALID_MASK);
+
+ ++vcpu->stat.irq_accepted;
}
}
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