KVM: APIC: get rid of deliver_bitmask
Deliver interrupt during destination matching loop.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Acked-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 814466f..dd934d2 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -199,27 +199,12 @@
static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode,
int vector, int level, int trig_mode);
-int kvm_apic_set_irq(struct kvm_vcpu *vcpu, u8 vec, u8 dmode, u8 trig)
+int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq)
{
struct kvm_lapic *apic = vcpu->arch.apic;
- int lapic_dmode;
- switch (dmode) {
- case IOAPIC_LOWEST_PRIORITY:
- lapic_dmode = APIC_DM_LOWEST;
- break;
- case IOAPIC_FIXED:
- lapic_dmode = APIC_DM_FIXED;
- break;
- case IOAPIC_NMI:
- lapic_dmode = APIC_DM_NMI;
- break;
- default:
- printk(KERN_DEBUG"Ignoring delivery mode %d\n", dmode);
- return 0;
- break;
- }
- return __apic_accept_irq(apic, lapic_dmode, vec, 1, trig);
+ return __apic_accept_irq(apic, irq->delivery_mode, irq->vector,
+ irq->level, irq->trig_mode);
}
static inline int apic_find_highest_isr(struct kvm_lapic *apic)
@@ -447,36 +432,24 @@
{
u32 icr_low = apic_get_reg(apic, APIC_ICR);
u32 icr_high = apic_get_reg(apic, APIC_ICR2);
+ struct kvm_lapic_irq irq;
- unsigned int dest = GET_APIC_DEST_FIELD(icr_high);
- unsigned int short_hand = icr_low & APIC_SHORT_MASK;
- unsigned int trig_mode = icr_low & APIC_INT_LEVELTRIG;
- unsigned int level = icr_low & APIC_INT_ASSERT;
- unsigned int dest_mode = icr_low & APIC_DEST_MASK;
- unsigned int delivery_mode = icr_low & APIC_MODE_MASK;
- unsigned int vector = icr_low & APIC_VECTOR_MASK;
-
- DECLARE_BITMAP(deliver_bitmask, KVM_MAX_VCPUS);
- int i;
+ irq.vector = icr_low & APIC_VECTOR_MASK;
+ irq.delivery_mode = icr_low & APIC_MODE_MASK;
+ irq.dest_mode = icr_low & APIC_DEST_MASK;
+ irq.level = icr_low & APIC_INT_ASSERT;
+ irq.trig_mode = icr_low & APIC_INT_LEVELTRIG;
+ irq.shorthand = icr_low & APIC_SHORT_MASK;
+ irq.dest_id = GET_APIC_DEST_FIELD(icr_high);
apic_debug("icr_high 0x%x, icr_low 0x%x, "
"short_hand 0x%x, dest 0x%x, trig_mode 0x%x, level 0x%x, "
"dest_mode 0x%x, delivery_mode 0x%x, vector 0x%x\n",
- icr_high, icr_low, short_hand, dest,
- trig_mode, level, dest_mode, delivery_mode, vector);
+ icr_high, icr_low, irq.shorthand, irq.dest,
+ irq.trig_mode, irq.level, irq.dest_mode, irq.delivery_mode,
+ irq.vector);
- kvm_get_intr_delivery_bitmask(apic->vcpu->kvm, apic, dest, dest_mode,
- delivery_mode == APIC_DM_LOWEST, short_hand,
- deliver_bitmask);
-
- while ((i = find_first_bit(deliver_bitmask, KVM_MAX_VCPUS))
- < KVM_MAX_VCPUS) {
- struct kvm_vcpu *vcpu = apic->vcpu->kvm->vcpus[i];
- __clear_bit(i, deliver_bitmask);
- if (vcpu)
- __apic_accept_irq(vcpu->arch.apic, delivery_mode,
- vector, level, trig_mode);
- }
+ kvm_irq_delivery_to_apic(apic->vcpu->kvm, apic, &irq);
}
static u32 apic_get_tmcct(struct kvm_lapic *apic)