Messages in this thread | | | Date | Tue, 30 Aug 2016 05:27:07 +0300 | From | "Michael S. Tsirkin" <> | Subject | [PATCH v2 0/2] vfio: blacklist legacy virtio devices |
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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
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