Gerd Hoffmann wrote:
There are some other problems with usb too: It's not transparent to
users. Any hotplug event could alert users and that's not desired. It's
a system-only thing and should also remain that way.
I think virtio-serial is the better way to handle vmchannel. Unlike
usb virtio is designed to work nicely in a virtual environment.
But vmchannel-over-usbserial should be easy too though in case some
guests lacks virtio backports or something.
I think you're missing my fundamental point. Don't use the kernel as
the guest interface.
Introduce a userspace daemon that exposes a domain socket. Then we can
have a proper protocol that uses reverse fqdns for identification.
We can do the backend over TCP/IP, usb, standard serial, etc.
Regards,
Anthony Liguori
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