Re: [Qemu-devel] [PATCH 17/23] hyperv: add synic message delivery

[Paolo Bonzini]

On 06/06/2017 20:19, Roman Kagan wrote:
> +    sint_route->msg_status = ret;
> +    /* notify the msg originator of the progress made; if the slot was busy 
> we
> +     * set msg_pending flag in it so it will be the guest who will do EOM and
> +     * trigger the notification from KVM via sint_ack_notifier */
> +    if (ret != -EAGAIN) {
> +        qemu_bh_schedule(sint_route->msg_bh);
> +    }

It may be faster to use aio_bh_schedule_oneshot, depending on the number
of devices.

Paolo