diff options
| author | Gleb Natapov <gleb@redhat.com> | 2009-08-24 10:54:20 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-12-03 08:32:07 +0100 |
| commit | 46e624b95c36d729bdf24010fff11d16f6fe94fa (patch) | |
| tree | e505df028d91f767778afb8e2cfc89cd6e7440e8 /include | |
| parent | KVM: Move irq sharing information to irqchip level (diff) | |
| download | linux-46e624b95c36d729bdf24010fff11d16f6fe94fa.tar.xz linux-46e624b95c36d729bdf24010fff11d16f6fe94fa.zip | |
KVM: Change irq routing table to use gsi indexed array
Use gsi indexed array instead of scanning all entries on each interrupt
injection.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/kvm_host.h | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 1c7f8c49e4e8..f403e66557fb 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -128,7 +128,17 @@ struct kvm_kernel_irq_routing_entry { } irqchip; struct msi_msg msi; }; - struct list_head link; + struct hlist_node link; +}; + +struct kvm_irq_routing_table { + struct kvm_kernel_irq_routing_entry *rt_entries; + u32 nr_rt_entries; + /* + * Array indexed by gsi. Each entry contains list of irq chips + * the gsi is connected to. + */ + struct hlist_head map[0]; }; struct kvm { @@ -166,7 +176,7 @@ struct kvm { struct mutex irq_lock; #ifdef CONFIG_HAVE_KVM_IRQCHIP - struct list_head irq_routing; /* of kvm_kernel_irq_routing_entry */ + struct kvm_irq_routing_table *irq_routing; struct hlist_head mask_notifier_list; #endif @@ -390,7 +400,12 @@ void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq, struct kvm_irq_mask_notifier *kimn); void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask); -int kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level); +#ifdef __KVM_HAVE_IOAPIC +void kvm_get_intr_delivery_bitmask(struct kvm_ioapic *ioapic, + union kvm_ioapic_redirect_entry *entry, + unsigned long *deliver_bitmask); +#endif +int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level); 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); |