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| author | Radim Krčmář <rkrcmar@redhat.com> | 2015-03-19 23:52:41 +0300 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2015-03-24 03:20:52 +0300 |
| commit | a123374ff3c6850e1340b6da010bb43668d710e1 (patch) | |
| tree | c5af16a84cac8c0f0418a8192b8d5c2aba95d41b /arch/x86/kvm/ioapic.h | |
| parent | bbf4aef89df1e8d982912f04d9a2b466750188d3 (diff) | |
| download | linux-a123374ff3c6850e1340b6da010bb43668d710e1.tar.xz | |
KVM: x86: inline kvm_ioapic_handles_vector()
An overhead from function call is not appropriate for its size and
frequency of execution.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm/ioapic.h')
| -rw-r--r-- | arch/x86/kvm/ioapic.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/kvm/ioapic.h b/arch/x86/kvm/ioapic.h index 38d8402ea65c..6e265cfcd86a 100644 --- a/arch/x86/kvm/ioapic.h +++ b/arch/x86/kvm/ioapic.h @@ -98,13 +98,19 @@ static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm) return kvm->arch.vioapic; } +static inline bool kvm_ioapic_handles_vector(struct kvm *kvm, int vector) +{ + struct kvm_ioapic *ioapic = kvm->arch.vioapic; + smp_rmb(); + return test_bit(vector, ioapic->handled_vectors); +} + void kvm_rtc_eoi_tracking_restore_one(struct kvm_vcpu *vcpu); bool kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source, int short_hand, unsigned int dest, int dest_mode); int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2); void kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu, int vector, int trigger_mode); -bool kvm_ioapic_handles_vector(struct kvm *kvm, int vector); int kvm_ioapic_init(struct kvm *kvm); void kvm_ioapic_destroy(struct kvm *kvm); int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int irq_source_id, |