diff options
| author | Yang Zhang <yang.z.zhang@Intel.com> | 2013-04-11 19:25:14 +0800 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2013-04-16 16:32:40 -0300 |
| commit | cf9e65b773394c5ad8fa7455c43268bc8ec2109f (patch) | |
| tree | dea4e116da3ecc13c8b6383ec2145a73480d66f0 /virt | |
| parent | 3d81bc7e96d6bca0b8f8b7d1bf6ea72caa3aac57 (diff) | |
| download | lwn-cf9e65b773394c5ad8fa7455c43268bc8ec2109f.tar.gz lwn-cf9e65b773394c5ad8fa7455c43268bc8ec2109f.zip | |
KVM: Set TMR when programming ioapic entry
We already know the trigger mode of a given interrupt when programming
the ioapice entry. So it's not necessary to set it in each interrupt
delivery.
Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/ioapic.c | 12 | ||||
| -rw-r--r-- | virt/kvm/ioapic.h | 3 |
2 files changed, 11 insertions, 4 deletions
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c index f2157a985a1f..2d682977ce82 100644 --- a/virt/kvm/ioapic.c +++ b/virt/kvm/ioapic.c @@ -193,7 +193,8 @@ static void update_handled_vectors(struct kvm_ioapic *ioapic) smp_wmb(); } -void kvm_ioapic_scan_entry(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap) +void kvm_ioapic_scan_entry(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap, + u32 *tmr) { struct kvm_ioapic *ioapic = vcpu->kvm->arch.vioapic; union kvm_ioapic_redirect_entry *e; @@ -207,8 +208,13 @@ void kvm_ioapic_scan_entry(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap) kvm_irq_has_notifier(ioapic->kvm, KVM_IRQCHIP_IOAPIC, index) || index == RTC_GSI)) { if (kvm_apic_match_dest(vcpu, NULL, 0, - e->fields.dest_id, e->fields.dest_mode)) - __set_bit(e->fields.vector, (unsigned long *)eoi_exit_bitmap); + e->fields.dest_id, e->fields.dest_mode)) { + __set_bit(e->fields.vector, + (unsigned long *)eoi_exit_bitmap); + if (e->fields.trig_mode == IOAPIC_LEVEL_TRIG) + __set_bit(e->fields.vector, + (unsigned long *)tmr); + } } } spin_unlock(&ioapic->lock); diff --git a/virt/kvm/ioapic.h b/virt/kvm/ioapic.h index 674a388612b4..615d8c995c3c 100644 --- a/virt/kvm/ioapic.h +++ b/virt/kvm/ioapic.h @@ -97,6 +97,7 @@ int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_lapic *src, int kvm_get_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state); int kvm_set_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state); void kvm_vcpu_request_scan_ioapic(struct kvm *kvm); -void kvm_ioapic_scan_entry(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap); +void kvm_ioapic_scan_entry(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap, + u32 *tmr); #endif |