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| author | Gleb Natapov <gleb@redhat.com> | 2012-09-13 17:19:24 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-09-20 15:05:26 +0300 |
| commit | 1e08ec4a130e2745d96df169e67c58df98a07311 (patch) | |
| tree | 362647f5b0bac59e7fe93ce66775afac2cd7da79 /arch/x86/kvm/lapic.h | |
| parent | 1d86b5cc4c6d9a1be1458be3701ac9c915a9706f (diff) | |
| download | linux-1e08ec4a130e2745d96df169e67c58df98a07311.tar.bz2 | |
KVM: optimize apic interrupt delivery
Most interrupt are delivered to only one vcpu. Use pre-build tables to
find interrupt destination instead of looping through all vcpus. In case
of logical mode loop only through vcpus in a logical cluster irq is sent
to.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/lapic.h')
| -rw-r--r-- | arch/x86/kvm/lapic.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h index 615a8b030168..e5ebf9f3571f 100644 --- a/arch/x86/kvm/lapic.h +++ b/arch/x86/kvm/lapic.h @@ -52,6 +52,9 @@ int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda); int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq); int kvm_apic_local_deliver(struct kvm_lapic *apic, int lvt_type); +bool kvm_irq_delivery_to_apic_fast(struct kvm *kvm, struct kvm_lapic *src, + struct kvm_lapic_irq *irq, int *r); + u64 kvm_get_apic_base(struct kvm_vcpu *vcpu); void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data); void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu, |