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authorGleb Natapov <gleb@redhat.com>2010-07-11 15:32:23 +0300
committerAvi Kivity <avi@redhat.com>2010-08-02 06:40:39 +0300
commit4a994358b919c3b14de61be5e30d9edc9089ba3f (patch)
tree122e0cc88dbb97733b02aac0e5e30e33d592444a /virt
parent2e2602ca5df09e4c4e2b593bc30abead9a8617d4 (diff)
downloadlinux-4a994358b919c3b14de61be5e30d9edc9089ba3f.tar.gz
KVM: Convert mask notifiers to use irqchip/pin instead of gsi
Devices register mask notifier using gsi, but irqchip knows about irqchip/pin, so conversion from irqchip/pin to gsi should be done before looking for mask notifier to call. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/ioapic.c2
-rw-r--r--virt/kvm/irq_comm.c12
2 files changed, 9 insertions, 5 deletions
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 1149c60b198..0b9df8303dc 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -152,7 +152,7 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
update_handled_vectors(ioapic);
mask_after = e->fields.mask;
if (mask_before != mask_after)
- kvm_fire_mask_notifiers(ioapic->kvm, index, mask_after);
+ kvm_fire_mask_notifiers(ioapic->kvm, KVM_IRQCHIP_IOAPIC, index, mask_after);
if (e->fields.trig_mode == IOAPIC_LEVEL_TRIG
&& ioapic->irr & (1 << index))
ioapic_service(ioapic, index);
diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c
index 06cf61e729d..369e38010ad 100644
--- a/virt/kvm/irq_comm.c
+++ b/virt/kvm/irq_comm.c
@@ -279,15 +279,19 @@ void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
synchronize_rcu();
}
-void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask)
+void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin,
+ bool mask)
{
struct kvm_irq_mask_notifier *kimn;
struct hlist_node *n;
+ int gsi;
rcu_read_lock();
- hlist_for_each_entry_rcu(kimn, n, &kvm->mask_notifier_list, link)
- if (kimn->irq == irq)
- kimn->func(kimn, mask);
+ gsi = rcu_dereference(kvm->irq_routing)->chip[irqchip][pin];
+ if (gsi != -1)
+ hlist_for_each_entry_rcu(kimn, n, &kvm->mask_notifier_list, link)
+ if (kimn->irq == gsi)
+ kimn->func(kimn, mask);
rcu_read_unlock();
}