Hello, Here are two patches. One implements a virtio-serial device in qemu and the other is the driver for a guest kernel. While working on a vmchannel interface that is needed for communication between guest userspace and host userspace, I saw that most of the interface can be abstracted out as a "serial" device with "ports". Some requirements for a vmchannel are listed at this page: http://kvm.et.redhat.com/page/VMchannel_Requirements A few sample uses for a vmchannel are to share the host and guest clipboards (to allow copy/paste between a host and a guest), to lock the screen of the guest session when the vnc viewer is closed, to find out which applications are installed on a guest OS even when the guest is powered down (using virt-inspector) and so on. At this time, the qemu device is more complete than the guest driver is. However, I'd like you to review both the patches for inclusion. Thanks, Amit. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html