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KVM: APIC: get rid of deliver_bitmask

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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>
This commit is contained in:
Gleb Natapov
2009-03-05 16:35:04 +02:00
committed by Avi Kivity
parent e1035715ef
commit 58c2dde17d
8 changed files with 107 additions and 134 deletions
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57
arch/x86/kvm/lapic.c
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@@ -199,27 +199,12 @@ EXPORT_SYMBOL_GPL(kvm_lapic_find_highest_irr);
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 @@ static void apic_send_ipi(struct kvm_lapic *apic)
{
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)