On Tue, Dec 05, 2017 at 02:27:18PM +0800, Changpeng Liu wrote:
> @@ -798,6 +801,70 @@ vu_set_slave_req_fd(VuDev *dev, VhostUserMsg *vmsg)
> }
>
> static bool
> +vu_get_config(VuDev *dev, VhostUserMsg *vmsg)
> +{
> + int ret = -1;
> +
> + if (dev->iface->get_config) {
> + ret = dev->iface->get_config(dev, vmsg->payload.config.region,
> + vmsg->payload.config.size);
> + }
> +
> + if (ret) {
> + /* resize to zero to indicate an error to master */
> + vmsg->size = 0;
> + }Please document this error case in vhost-user.txt. I don't remember reading about it.
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