Re: Transparent compress in virtio

Hello virtio-dev team,

I want to compress all the data or files when the apps in VMs writes to a pass-through block device via kvm virtio.

And decompress the data when the apps in VMs trying to read the data from the pass-through block device on host.

My idea is to add a data transform layer into virtio architecture for the purpose of transparent compress.

I am reading the virtio.c, virtio_ring.c code, but have not found the place where I can do the data compress.

Is it feasible that we can add a filter into the virtio, and there is a chance to do data compress or encrypt in the filter?

Thanks

Keen