@@ -29,6 +29,7 @@
#include <linux/dma-mapping.h>
#include <linux/module.h>
#include <linux/pci.h>
+#include <linux/mem_encrypt.h>
#include <drm/drm_drv.h>
#include <drm/drm_ioctl.h>
@@ -575,6 +576,10 @@ static int vmw_dma_select_mode(struct vmw_private *dev_priv)
[vmw_dma_map_populate] = "Caching DMA mappings.",
[vmw_dma_map_bind] = "Giving up DMA mappings early."};
+ /* TTM currently doesn't fully support SEV encryption. */
+ if (mem_encrypt_active())
+ return -EINVAL;
+
if (vmw_force_coherent)
dev_priv->map_mode = vmw_dma_alloc_coherent;
else if (vmw_restrict_iommu)