[PATCH v2 0/1] s390: virtio: let's arch choose to accept devices without IOMMU feature

Pierre Morel
2020-06-15T12:39:37Z

An architecture protecting the guest memory against unauthorized host
access may want to enforce VIRTIO I/O device protection through the
use of VIRTIO_F_IOMMU_PLATFORM.

Let's give a chance to the architecture to accept or not devices
without VIRTIO_F_IOMMU_PLATFORM.

Pierre Morel (1):
s390: virtio: let arch accept devices without IOMMU feature

arch/s390/mm/init.c | 6 ++++++
drivers/virtio/virtio.c | 9 +++++++++
include/linux/virtio.h | 2 ++
3 files changed, 17 insertions(+)

--
2.25.1

Changelog to v2:

- put the test in virtio_finalize_features()
(Connie)

- put the test inside VIRTIO core
(Jason)

- pass a virtio device as parameter
(Halil)