[PATCH v12 0/2] s390: virtio: let arch validate VIRTIO features

Pierre Morel
2020-09-10T08:54:30Z

Hi all,

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

I changed VIRTIO_F_IOMMU_PLATFORM to VIRTIO_F_ACCESS_PLATFORM
I forgot in drivers/virtio/Kconfig, and put back the inclusion
of virtio_config.h for the definition of the callback in
arch/s390/mm/init.c I wrongly removed in the last series.

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 | 11 +++++++++++
drivers/virtio/Kconfig | 6 ++++++
drivers/virtio/virtio.c | 15 +++++++++++++++
include/linux/virtio_config.h | 10 ++++++++++
5 files changed, 43 insertions(+)

--
2.25.1

to v12
- replaced VIRTIO_F_IOMMU_PLATFORM with VIRTIO_F_ACCESS_PLATFORM
in drivers/virtio/Kconfig
(Halil)

- suppress inaccurate part of the comment in patch 2
(Halil)

- added back virtio_config.h to define
arch_has_restricted_virtio_memory_access
(kernel robot)

to v11:
- replaced VIRTIO_F_IOMMU_PLATFORM with VIRTIO_F_ACCESS_PLATFORM

to v10:
- removed virtio_config.h unnecessary include
- wording
(Connie)

to v9:

- move virtio tests back to virtio_finalize_features
(Connie)

- remove virtio device argument

to v8:

- refactoring by using an optional callback
(Connie)

to v7:

- typo in warning message
(Connie)
to v6:

- rewording warning messages
(Connie, Halil)

to v5:

- return directly from S390 arch_validate_virtio_features()
when the guest is not protected.
(Connie)

- Somme rewording
(Connie, Michael)

- moved back code from arch/s390/ ...kernel/uv.c to ...mm/init.c
(Christian)

to v4:

- separate virtio and arch code
(Pierre)

- moved code from arch/s390/mm/init.c to arch/s390/kernel/uv.c
(as interpreted from Heiko's comment)

- moved validation inside the arch code
(Connie)

- moved the call to arch validation before VIRTIO_F_1 test
(Michael)

to v3:

- add warning
(Connie, Christian)

- add comment
(Connie)

- change hook name
(Halil, Connie)

to v2:

- put the test in virtio_finalize_features()
(Connie)

- put the test inside VIRTIO core
(Jason)

- pass a virtio device as parameter
(Halil)