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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 30 Aug 2016 05:27:07 +0300
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     Jason Wang <jasowang@...hat.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Cornelia Huck <cornelia.huck@...ibm.com>,
        virtualization@...ts.linux-foundation.org, qemu-devel@...gnu.org,
        kvm@...r.kernel.org
Subject: [PATCH v2 0/2] vfio: blacklist legacy virtio devices

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