[v10,0/2] s390: virtio: let arch validate VIRTIO features

Message

Pierre Morel Aug. 31, 2020, 9:09 a.m. UTC

Hi all,

The goal of the series is to give a chance to the architecture
to validate VIRTIO device features.

The tests are back to virtio_finalize_features.

No more argument for the architecture callback which only reports
if the architecture needs guest memory access restrictions for
VIRTIO.


I renamed the callback to arch_has_restricted_virtio_memory_access,
and the config option to ARCH_HAS_RESTRICTED_VIRTIO_MEMORY_ACCESS.

Regards,
Pierre

Pierre Morel (2):
  virtio: let arch advertise guest's memory access restrictions
  s390: virtio: PV needs VIRTIO I/O device protection

 arch/s390/Kconfig             |  1 +
 arch/s390/mm/init.c           | 10 ++++++++++
 drivers/virtio/Kconfig        |  6 ++++++
 drivers/virtio/virtio.c       | 15 +++++++++++++++
 include/linux/virtio_config.h |  9 +++++++++
 5 files changed, 41 insertions(+)