Re: [Qemu-devel] [PATCH v5 08/10] hw/intc/arm_gic_kvm: advertise irqfd

[Eric Auger]

On 08/11/2014 11:37 AM, Alexander Graf wrote:
> 
> On 09.08.14 16:25, Eric Auger wrote:
>> set kvm_irqfds_allowed
>>
>> Signed-off-by: Eric Auger <address@hidden>
>> ---
>>   hw/intc/arm_gic_kvm.c | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/hw/intc/arm_gic_kvm.c b/hw/intc/arm_gic_kvm.c
>> index 5038885..08b7bf9 100644
>> --- a/hw/intc/arm_gic_kvm.c
>> +++ b/hw/intc/arm_gic_kvm.c
>> @@ -576,6 +576,8 @@ static void kvm_arm_gic_realize(DeviceState *dev,
>> Error **errp)
>>                               KVM_DEV_ARM_VGIC_GRP_ADDR,
>>                               KVM_VGIC_V2_ADDR_TYPE_CPU,
>>                               s->dev_fd);
>> +
>> +    kvm_irqfds_allowed = true;
> 
> Is this always true? If it is, why not enable it separately while making
> vhost-net work for example?

Hi Alex,

yes I think so. As soon as KVM is enabled, KVM/arm would enable
injection though irqfd. Defintively makes sense to test it with
vhost-net too. Well a matter of priority ;-)

Best Regards

Eric

> 
> Alex
>