fazlamehrab 577d44c8eb vm-virtio: Add virtio console device for single port operation ... The virtio console device is a console for the communication between the host and guest userspace. It has two parts: the device and the driver. The console device is implemented here as a virtio-pci device to the guest. On the other side, the guest OS expected to have a character device driver which provides an interface to the userspace applications. The console device can have multiple ports where each port has one transmit queue and one receive queue. The current implementation only supports one port. For data IO communication, one or more empty buffers are placed in the receive queue for incoming data, and outgoing characters are placed in the transmit queue. Details spec can be found from the following link. https://docs.oasis-open.org/virtio/virtio/v1.1/csprd01/virtio-v1.1-csprd01.pdf#e7 Apart from the console, for the communication between guest and host, the Cloud Hypervisor has a legacy serial device implemented. However, the implementation of a console device lets us be independent of legacy pin-based interrupts without losing the logs and access to the VM. Signed-off-by: A K M Fazla Mehrab <fazla.mehrab.akm@intel.com>		2019-07-22 23:08:56 +01:00
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src	vm-virtio: Add virtio console device for single port operation	2019-07-22 23:08:56 +01:00
Cargo.toml	vm-virtio: Add vhost-user-fs support	2019-06-27 21:46:00 +02:00