Commit 977a8d9c authored by Andrey Smetanin's avatar Andrey Smetanin Committed by Paolo Bonzini
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kvm: Hyper-V SynIC irq routing support 



Signed-off-by: default avatarAndrey Smetanin <asmetanin@virtuozzo.com>
Reviewed-by: default avatarRoman Kagan <rkagan@virtuozzo.com>
Signed-off-by: default avatarDenis 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: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 866eea9a

include/sysemu/kvm.h

+1 −0
Original line number Diff line number Diff line
@@ -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);

kvm-all.c

+33 −0
Original line number Diff line number Diff line
@@ -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();