1 files changed, 16 insertions, 0 deletions

diff --git a/tools/virtio/linux/dma-mapping.h b/tools/virtio/linux/dma-mapping.h
index 4f93af89ae16..18601f6689b9 100644
--- a/tools/virtio/linux/dma-mapping.h
+++ b/tools/virtio/linux/dma-mapping.h
@@ -14,4 +14,20 @@ enum dma_data_direction {
         DMA_NONE = 3,
 };
 
+#define dma_alloc_coherent(d, s, hp, f) ({ \
+        void *__dma_alloc_coherent_p = kmalloc((s), (f)); \
+        *(hp) = (unsigned long)__dma_alloc_coherent_p; \
+        __dma_alloc_coherent_p; \
+})
+
+#define dma_free_coherent(d, s, p, h) kfree(p)
+
+#define dma_map_page(d, p, o, s, dir) (page_to_phys(p) + (o))
+
+#define dma_map_single(d, p, s, dir) (virt_to_phys(p))
+#define dma_mapping_error(...) (0)
+
+#define dma_unmap_single(...) do { } while (0)
+#define dma_unmap_page(...) do { } while (0)
+
 #endif