On Mon, Jun 06, 2016 at 10:51:11AM +0530, Srinivas Nayak wrote:
> I am studying the virtio spec 1.0 and trying to write a virtio blk driver.
> Is there anywhere a simple example virtio blk driver can be found,
> which may be written with conformance to virtio spec 1.0?
> I would like to understand a simple virtio blk driver, how it is written.
>
> Better if there is any clear document available regarding a virtio blk driver implementation.
If you want to see a minimal driver, look at the SeaBIOS
src/hw/virtio-blk.c driver. It only uses a subset of virtio-blk
functionality.
https://github.com/qemu/seabios/blob/master/src/hw/virtio-blk.c
For a full implementation, look at the Linux driver:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/block/virtio_blk.c
Stefan
