From cf9e65b773394c5ad8fa7455c43268bc8ec2109f Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Thu, 11 Apr 2013 19:25:14 +0800 Subject: 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 Reviewed-by: Gleb Natapov Signed-off-by: Marcelo Tosatti --- arch/x86/kvm/lapic.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) (limited to 'arch/x86/kvm/lapic.c') diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 34a8ca845280..d197579435d0 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -468,6 +468,15 @@ static inline int apic_find_highest_isr(struct kvm_lapic *apic) return result; } +void kvm_apic_update_tmr(struct kvm_vcpu *vcpu, u32 *tmr) +{ + struct kvm_lapic *apic = vcpu->arch.apic; + int i; + + for (i = 0; i < 8; i++) + apic_set_reg(apic, APIC_TMR + 0x10 * i, tmr[i]); +} + static void apic_update_ppr(struct kvm_lapic *apic) { u32 tpr, isrv, ppr, old_ppr; @@ -661,12 +670,6 @@ static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode, if (dest_map) __set_bit(vcpu->vcpu_id, dest_map); - if (trig_mode) { - apic_debug("level trig mode for vector %d", vector); - apic_set_vector(vector, apic->regs + APIC_TMR); - } else - apic_clear_vector(vector, apic->regs + APIC_TMR); - result = !apic_test_and_set_irr(vector, apic); trace_kvm_apic_accept_irq(vcpu->vcpu_id, delivery_mode, trig_mode, vector, !result); -- cgit v1.2.3