The video and slides from my virtio-fs talk at FOSDEM '20 are now available!
virtio-fs is a shared file system that lets guests access a directory on the host. It can be used for many things, including secure containers, booting from a root directory, and testing code inside a guest.
The talk explains how virtio-fs works, including the Linux FUSE protocol that it's based on and how FUSE concepts are mapped to VIRTIO.
virtio-fs guest drivers have been available since Linux v5.4 and QEMU support will be available from QEMU v5.0 onwards.
