[PATCH v2 0/2] vfio: blacklist legacy virtio devices

Michael S. Tsirkin
2016-08-30T02:27:07Z

Legacy virtio devices always bypassed an IOMMU, so using them with vfio was
never safe. This adds a quirk detecting these and disabling VFIO unless the
noiommu mode is used. At the moment, this only applies to virtio-pci devices.

The patch might make sense on stable as well.

Michael S. Tsirkin (2):
vfio: report group noiommu status
vfio: add virtio pci quirk

drivers/vfio/pci/vfio_pci_private.h | 1 +
include/linux/vfio.h | 2 +
drivers/vfio/pci/vfio_pci.c | 14 ++++
drivers/vfio/pci/vfio_pci_virtio.c | 140 ++++++++++++++++++++++++++++++++++++
drivers/vfio/vfio.c | 12 ++++
drivers/vfio/pci/Makefile | 1 +
6 files changed, 170 insertions(+)
create mode 100644 drivers/vfio/pci/vfio_pci_virtio.c

--
MST