vhost-pci的详细介绍可以参考Design of Vhost-pci slides与video，本文主要mark下相关notes。

Usage and Motivation

如上图所示，通过network packet的数据流向对比，可以显示vhost-pci的作用:high performance inter-VM communication schemes，vhost-pci机制可以让network packet直接从一个vm传输到另外一个vm中，无需经过vSwitch的中转。

Vhost-pci Design Details

vhost-pci vs virtio-vhost-user


详细内容可以参考vhost-pci and virtio-vhost-user。

参考资料:

  1. Design of Vhost-pci slides
  2. Design of Vhost-pci video
  3. What’s new in Virtio 1.1?
  4. Virtualization of DPDK applications using virtio-vhost-user
  5. Vhost-pci for inter-VM communication
  6. vhost-pci and virtio-vhost-user