static int virtballoon_validate(struct virtio_device *vdev)
{
if (!page_poisoning_enabled())
__virtio_clear_bit(vdev, VIRTIO_BALLOON_F_PAGE_POISON);
__virtio_clear_bit(vdev, VIRTIO_F_IOMMU_PLATFORM);
return 0;
}
static void vop_transport_features(struct virtio_device *vdev)
{
/*
* Packed ring isn't enabled on virtio_vop for now,
* because virtio_vop uses vring_new_virtqueue() which
* creates virtio rings on preallocated memory.
*/
__virtio_clear_bit(vdev, VIRTIO_F_RING_PACKED);
}
static int virtballoon_validate(struct virtio_device *vdev)
{
__virtio_clear_bit(vdev, VIRTIO_F_IOMMU_PLATFORM);
return 0;
}