The flag is mandatory for the ARM SMMU, add it.
When VFIO will be able to tell about the IOMMU being used, we will add
it only if necessary.
Signed-off-by: Alvise Rigo <a.r...@virtualopensystems.com>
---
hw/vfio/common.c | 3 +++
linux-headers/linux/vfio.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index 9d1f723..f4c1fec 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -107,6 +107,9 @@ static int vfio_dma_map(VFIOContainer *container, hwaddr
iova,
map.flags |= VFIO_DMA_MAP_FLAG_WRITE;
}
+ /* add exec flag */
+ map.flags |= VFIO_DMA_MAP_FLAG_WRITE;
+
/*
* Try the mapping, if it fails with EBUSY, unmap the region and try
* again. This shouldn't be necessary, but we sometimes see it in
diff --git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h
index 17c58e0..e0b404e 100644
--- a/linux-headers/linux/vfio.h
+++ b/linux-headers/linux/vfio.h
@@ -392,6 +392,7 @@ struct vfio_iommu_type1_dma_map {
__u32 flags;
#define VFIO_DMA_MAP_FLAG_READ (1 << 0) /* readable from device
*/
#define VFIO_DMA_MAP_FLAG_WRITE (1 << 1) /* writable from device */
+#define VFIO_DMA_MAP_FLAG_EXEC (1 << 2) /* executable from device */
__u64 vaddr; /* Process virtual address */
__u64 iova; /* IO virtual address */
__u64 size; /* Size of mapping (bytes) */
--
1.8.3.2
