diff options
| author | Andrey Smetanin <asmetanin@virtuozzo.com> | 2015-10-16 10:07:46 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-10-16 10:34:29 +0200 |
| commit | ba1aefcd6db5536d3eb3ca3ce7bd6786960140ea (patch) | |
| tree | 27fd2764e673359414fb485908b42f0f200dd2b2 | |
| parent | 351dc6477cd35136ce4668401b1b1332a62908a8 (diff) | |
| download | op-kernel-dev-ba1aefcd6db5536d3eb3ca3ce7bd6786960140ea.zip op-kernel-dev-ba1aefcd6db5536d3eb3ca3ce7bd6786960140ea.tar.gz | |
kvm/eventfd: factor out kvm_notify_acked_gsi()
Factor out kvm_notify_acked_gsi() helper to iterate over EOI listeners
and notify those matching the given gsi.
It will be reused in the upcoming Hyper-V SynIC implementation.
Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Vitaly Kuznetsov <vkuznets@redhat.com>
CC: "K. Y. Srinivasan" <kys@microsoft.com>
CC: Gleb Natapov <gleb@kernel.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | include/linux/kvm_host.h | 1 | ||||
| -rw-r--r-- | virt/kvm/eventfd.c | 16 |
2 files changed, 12 insertions, 5 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 9596a2f..b66861c 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -829,6 +829,7 @@ int kvm_set_irq_inatomic(struct kvm *kvm, int irq_source_id, u32 irq, int level) int kvm_set_msi(struct kvm_kernel_irq_routing_entry *irq_entry, struct kvm *kvm, int irq_source_id, int level, bool line_status); bool kvm_irq_has_notifier(struct kvm *kvm, unsigned irqchip, unsigned pin); +void kvm_notify_acked_gsi(struct kvm *kvm, int gsi); void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); void kvm_register_irq_ack_notifier(struct kvm *kvm, struct kvm_irq_ack_notifier *kian); diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index 518421e..f6b986a 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c @@ -451,9 +451,18 @@ bool kvm_irq_has_notifier(struct kvm *kvm, unsigned irqchip, unsigned pin) } EXPORT_SYMBOL_GPL(kvm_irq_has_notifier); -void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin) +void kvm_notify_acked_gsi(struct kvm *kvm, int gsi) { struct kvm_irq_ack_notifier *kian; + + hlist_for_each_entry_rcu(kian, &kvm->irq_ack_notifier_list, + link) + if (kian->gsi == gsi) + kian->irq_acked(kian); +} + +void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin) +{ int gsi, idx; trace_kvm_ack_irq(irqchip, pin); @@ -461,10 +470,7 @@ void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin) idx = srcu_read_lock(&kvm->irq_srcu); gsi = kvm_irq_map_chip_pin(kvm, irqchip, pin); if (gsi != -1) - hlist_for_each_entry_rcu(kian, &kvm->irq_ack_notifier_list, - link) - if (kian->gsi == gsi) - kian->irq_acked(kian); + kvm_notify_acked_gsi(kvm, gsi); srcu_read_unlock(&kvm->irq_srcu, idx); } |
