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path: root/drivers/s390/crypto/vfio_ap_ops.c
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Diffstat (limited to 'drivers/s390/crypto/vfio_ap_ops.c')
-rw-r--r--drivers/s390/crypto/vfio_ap_ops.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c
index 0b4cc8c597ae..8bf353d46820 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -1535,13 +1535,29 @@ static int vfio_ap_mdev_set_kvm(struct ap_matrix_mdev *matrix_mdev,
return 0;
}
+static void unmap_iova(struct ap_matrix_mdev *matrix_mdev, u64 iova, u64 length)
+{
+ struct ap_queue_table *qtable = &matrix_mdev->qtable;
+ struct vfio_ap_queue *q;
+ int loop_cursor;
+
+ hash_for_each(qtable->queues, loop_cursor, q, mdev_qnode) {
+ if (q->saved_iova >= iova && q->saved_iova < iova + length)
+ vfio_ap_irq_disable(q);
+ }
+}
+
static void vfio_ap_mdev_dma_unmap(struct vfio_device *vdev, u64 iova,
u64 length)
{
struct ap_matrix_mdev *matrix_mdev =
container_of(vdev, struct ap_matrix_mdev, vdev);
- vfio_unpin_pages(&matrix_mdev->vdev, iova, 1);
+ mutex_lock(&matrix_dev->mdevs_lock);
+
+ unmap_iova(matrix_mdev, iova, length);
+
+ mutex_unlock(&matrix_dev->mdevs_lock);
}
/**