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Message-Id: <1436780855-3617-16-git-send-email-feng.wu@intel.com> Date: Mon, 13 Jul 2015 17:47:31 +0800 From: Feng Wu <feng.wu@...el.com> To: kvm@...r.kernel.org, linux-kernel@...r.kernel.org Cc: pbonzini@...hat.com, alex.williamson@...hat.com, joro@...tes.org, eric.auger@...aro.org, feng.wu@...el.com Subject: [v5 15/19] KVM: eventfd: add irq bypass consumer management From: Eric Auger <eric.auger@...aro.org> This patch adds the registration/unregistration of an irq_bypass_consumer on irqfd assignment/deassignment. Signed-off-by: Eric Auger <eric.auger@...aro.org> Signed-off-by: Feng Wu <feng.wu@...el.com> --- virt/kvm/eventfd.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index 647ffb8..4225eea 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c @@ -35,6 +35,7 @@ #include <linux/srcu.h> #include <linux/slab.h> #include <linux/seqlock.h> +#include <linux/irqbypass.h> #include <trace/events/kvm.h> #include <kvm/iodev.h> @@ -140,6 +141,7 @@ irqfd_shutdown(struct work_struct *work) /* * It is now safe to release the object's resources */ + irq_bypass_unregister_consumer(&irqfd->consumer); eventfd_ctx_put(irqfd->eventfd); kfree(irqfd); } @@ -380,6 +382,11 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args) */ fdput(f); + irqfd->consumer.token = (void *)irqfd->eventfd; + kvm_arch_irq_consumer_init(&irqfd->consumer); + ret = irq_bypass_register_consumer(&irqfd->consumer); + WARN_ON(ret); + return 0; fail: -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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