[PATCH 00/11] virtio: Harden and test vring

[Tom Rini]

On Thu, Mar 31, 2022 at 10:09:38AM +0000, Andrew Scull wrote:

> Continuing the theme of making the virtio code resilient against
> corruption of the buffers shared with the device, this series focusses
> on the vring. This series is simpler and more self-contained than the
> series for virtio-pci!
> 
> It follows the example of Linux by keeping a private copy of the
> descriptors and metadata for state tracking and only ever writing to the
> descriptors that are shared with the device.
> 
> I was able to test these hardening steps in the sandbox by simulating
> device writes to the queues. I was also looking into testing the device
> drivers against a simulated device but the lack of an API to access the
> virtqueues meant this ended up being a hack. I've included that hack and
> the at the end of the series as an RFC.
> 
> Andrew Scull (11):
>   virtio_ring: Merge identical variables
>   virtio_ring: Add helper to attach vring descriptor
>   virtio_ring: Maintain a shadow copy of descriptors
>   virtio_ring: Check used descriptors are chain heads
>   dm: test: virtio: Test the virtio ring
>   virtio: sandbox: Fix device features bitfield
>   test: dm: virtio: Test notify before del_vqs
>   virtio: sandbox: Bind RNG rather than block device
>   test: dm: virtio: Test virtio device driver probing
>   virtio: rng: Check length before copying
>   RFC: test: dm: virtio: Test virtio-rng with faked device

What does this series depend on?  I got a failure to build on sandbox:
https://source.denx.de/u-boot/u-boot/-/jobs/422500#L104
Thanks!

-- 
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 659 bytes
Desc: not available
URL: <https://lists.denx.de/pipermail/u-boot/attachments/20220412/cbfd8e97/attachment.sig>