On Wed, Oct 09, 2019 at 02:16:43PM +0100, Stefan Hajnoczi wrote: > On Fri, Sep 27, 2019 at 01:27:01PM +0200, Stefano Garzarella wrote: > > VMCI transport provides both g2h and h2g behaviors in a single > > transport. > > We are able to set (or not) the g2h behavior, detecting if we > > are in a VMware guest (or not), but the h2g feature is always set. > > This prevents to load other h2g transports while we are in a > > VMware guest. > > In the vhost_vsock.ko case we only register the h2g transport when > userspace has loaded the module (by opening /dev/vhost-vsock). > > VMCI has something kind of similar: /dev/vmci and the > vmci_host_active_users counter. Maybe we can use this instead of > introducing the transport_hg concept? Yes, maybe we can register the host in the vmci_host_do_init_context(). I also don't like a lot the transport_hg concept, so I'll try to found an alternative. Thanks, Stefano