[Qemu-devel] Idea: fuse-kvm filesystem

[Avi Kivity]

Currently when you mount a filesystem, you face two issues:
- you have to be root
- if the media is untrusted, it can exploit your kernel

With kvm and fuse, we can have a virtualized kernel mount the
filesystem, and re-export to the host, which mounts it using a fuse
interface.  This solves both problems, at the expense of speed and
simplicity.  In theory this can be used for mounting untrusted USB
sticks (perhaps only for the less well tested filesystems).

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