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KVM: Introduce CONFIG_HAVE_KVM_IRQ_ROUTING

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Quite a bit of code in KVM has been conditionalized on availability of
IOAPIC emulation. However, most of it is generically applicable to
platforms that don't have an IOPIC, but a different type of irq chip.

Make code that only relies on IRQ routing, not an APIC itself, on
CONFIG_HAVE_KVM_IRQ_ROUTING, so that we can reuse it later.

Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Alexander Graf 2013-04-17 13:29:30 +02:00
parent 8175e5b79c
commit a725d56a02
5 changed files with 11 additions and 7 deletions
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6
include/linux/kvm_host.h
View file

@ -304,7 +304,7 @@ struct kvm_kernel_irq_routing_entry {
struct hlist_node link;
};
#ifdef __KVM_HAVE_IOAPIC
#ifdef CONFIG_HAVE_KVM_IRQ_ROUTING
struct kvm_irq_routing_table {
int chip[KVM_NR_IRQCHIPS][KVM_IRQCHIP_NUM_PINS];
@ -432,7 +432,7 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
int __must_check vcpu_load(struct kvm_vcpu *vcpu);
void vcpu_put(struct kvm_vcpu *vcpu);
#ifdef __KVM_HAVE_IOAPIC
#ifdef CONFIG_HAVE_KVM_IRQ_ROUTING
int kvm_irqfd_init(void);
void kvm_irqfd_exit(void);
#else
@ -957,7 +957,7 @@ static inline int mmu_notifier_retry(struct kvm *kvm, unsigned long mmu_seq)
}
#endif
#ifdef KVM_CAP_IRQ_ROUTING
#ifdef CONFIG_HAVE_KVM_IRQ_ROUTING
#define KVM_MAX_IRQ_ROUTES 1024