From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Hi folks,
This series adds a virtio_queue_valid() for use by virtio-pci code in
order to prevent opreations upon uninitialized VQs, which is currently
expected to occur during seabios setup of virtio-scsi with in-flight
vhost-scsi-pci device code.
On the vhost side, it also adds virtio_queue_valid() sanity checks in
vhost_virtqueue_[start,stop]() and vhost_verify_ring_mappings() in order
to skip the same uninitialized VQs.
Changes from v1:
- Remove now unnecessary virtio_queue_get_num() calls in virtio-pci.c
- Add virtio_queue_valid() calls in vhost_virtqueue_[start,stop]()
Please review.
--nab
Michael S. Tsirkin (1):
virtio: add API to check that ring is setup
Nicholas Bellinger (2):
virtio-pci: Add virtio_queue_valid checks ahead of
virtio_queue_get_num
vhost: Skip uninitialized VQs in vhost_virtqueue_[start,stop]
hw/vhost.c | 12 ++++++++++++
hw/virtio-pci.c | 34 +++++++++++++++-------------------
hw/virtio.c | 5 +++++
hw/virtio.h | 1 +
4 files changed, 33 insertions(+), 19 deletions(-)
--
1.7.2.5
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