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kvm: Hyper-V SynIC irq routing support 

Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Richard Henderson <rth@twiddle.net>
CC: Eduardo Habkost <ehabkost@redhat.com>
CC: "Andreas Färber" <afaerber@suse.de>
CC: Marcelo Tosatti <mtosatti@redhat.com>
CC: Roman Kagan <rkagan@virtuozzo.com>
CC: Denis V. Lunev <den@openvz.org>
CC: kvm@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Andrey Smetanin 2015-11-10 15:52:42 +03:00 committed by Paolo Bonzini
parent 866eea9a13
commit 977a8d9c0d
2 changed files with 34 additions and 0 deletions
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1
include/sysemu/kvm.h
View File

@ -455,6 +455,7 @@ int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg,
void kvm_irqchip_release_virq(KVMState *s, int virq);
int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter);
int kvm_irqchip_add_hv_sint_route(KVMState *s, uint32_t vcpu, uint32_t sint);
int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
EventNotifier *rn, int virq);

33
kvm-all.c
View File

@ -1300,6 +1300,34 @@ int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter)
return virq;
}
int kvm_irqchip_add_hv_sint_route(KVMState *s, uint32_t vcpu, uint32_t sint)
{
struct kvm_irq_routing_entry kroute = {};
int virq;
if (!kvm_gsi_routing_enabled()) {
return -ENOSYS;
}
if (!kvm_check_extension(s, KVM_CAP_HYPERV_SYNIC)) {
return -ENOSYS;
}
virq = kvm_irqchip_get_virq(s);
if (virq < 0) {
return virq;
}
kroute.gsi = virq;
kroute.type = KVM_IRQ_ROUTING_HV_SINT;
kroute.flags = 0;
kroute.u.hv_sint.vcpu = vcpu;
kroute.u.hv_sint.sint = sint;
kvm_add_routing_entry(s, &kroute);
kvm_irqchip_commit_routes(s);
return virq;
}
#else /* !KVM_CAP_IRQ_ROUTING */
void kvm_init_irq_routing(KVMState *s)
@ -1325,6 +1353,11 @@ int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter)
return -ENOSYS;
}
int kvm_irqchip_add_hv_sint_route(KVMState *s, uint32_t vcpu, uint32_t sint)
{
return -ENOSYS;
}
static int kvm_irqchip_assign_irqfd(KVMState *s, int fd, int virq, bool assign)
{
abort();