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authorYang Zhang <yang.z.zhang@Intel.com>2013-04-11 19:25:14 +0800
committerMarcelo Tosatti <mtosatti@redhat.com>2013-04-16 16:32:40 -0300
commitcf9e65b773394c5ad8fa7455c43268bc8ec2109f (patch)
treedea4e116da3ecc13c8b6383ec2145a73480d66f0 /virt/kvm
parent3d81bc7e96d6bca0b8f8b7d1bf6ea72caa3aac57 (diff)
downloadvexpress-lsk-cf9e65b773394c5ad8fa7455c43268bc8ec2109f.tar.gz
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/kvm')
-rw-r--r--virt/kvm/ioapic.c12
-rw-r--r--virt/kvm/ioapic.h3
2 files changed, 11 insertions, 4 deletions
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index f2157a985a1..2d682977ce8 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 674a388612b..615d8c995c3 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