diff options
| author | Michael S. Tsirkin <[email protected]> | 2017-06-13 20:56:44 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <[email protected]> | 2017-06-18 23:13:35 +0300 |
| commit | e41b1355508debe45fda33ef8c03ff3ba5d206b9 (patch) | |
| tree | 396b20319057a273363cd7fdcf54d42edefe770f | |
| parent | 32c1431eea4881a6b17bd7c639315010aeefa452 (diff) | |
virtio_balloon: disable VIOMMU support
virtio balloon bypasses the DMA API entirely so does not support the
VIOMMU right now. It's not clear we need that support, for now let's
just make sure we don't pretend to support it.
Cc: [email protected]
Cc: Wei Wang <[email protected]>
Fixes: 1a937693993f ("virtio: new feature to detect IOMMU device quirk")
Signed-off-by: Michael S. Tsirkin <[email protected]>
Acked-by: Jason Wang <[email protected]>
| -rw-r--r-- | drivers/virtio/virtio_balloon.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 408c174ef0d5..22caf808bfab 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -663,6 +663,12 @@ static int virtballoon_restore(struct virtio_device *vdev) } #endif +static int virtballoon_validate(struct virtio_device *vdev) +{ + __virtio_clear_bit(vdev, VIRTIO_F_IOMMU_PLATFORM); + return 0; +} + static unsigned int features[] = { VIRTIO_BALLOON_F_MUST_TELL_HOST, VIRTIO_BALLOON_F_STATS_VQ, @@ -675,6 +681,7 @@ static struct virtio_driver virtio_balloon_driver = { .driver.name = KBUILD_MODNAME, .driver.owner = THIS_MODULE, .id_table = id_table, + .validate = virtballoon_validate, .probe = virtballoon_probe, .remove = virtballoon_remove, .config_changed = virtballoon_changed, |