Kubernetes VFIO Device Plugin

This plugin is used to present VFIO devices as allocatable resources in Kubernetes. While the plugin was written specifically to allow GPU/NPU passthrough for Kata Containers, in practice the plugin is completely generic and it can handle any device controlled by the vfio-pci driver on the host machine.

Credits

This plugin is forked from mrlhansen/vfio-device-plugin. Add the following feature support:

1.Support to update vfio devices automatically when the vfio device bind. 2.Support to bind the vfio devices according to a config.

Contains the vfio-pci bind script which can bind device by manual.

Configuration

In the manifest directory there is a YAML file for starting the plugin as a container in Kubernetes. This manifest also contains a configuration file for the plugin, where you can specify what VFIO devices you want to register as a resource.

- resourceName: ascend/910b
  vendorId: '19e5'
  deviceId: ['d802']
- resourceName: ascend/910b
  vendorId: '19e5'
  deviceId: ['d301']

resourceName is the name of the resource in Kubernetes which will be used in resource request and it must be of the format xxxx/yyyy. vendorId is the value of the PCI device vendor. it can be get by cat /sys/bus/pci/drivers/vfio-pci/<DEVICE-ADDRESS>/vendor. deviceId is the identify value of one kind of PCI device. it can be get by cat /sys/bus/pci/drivers/vfio-pci/<DEVICE-ADDRESS>/device.

Multiple device types with single vendor will be allowed as the deviceId is a list.