[RFC PATCH v6 02/20] iommu: add capability IOMMU_CAP_NOEXEC

Antonios Motakis
2014-06-05T17:03:10Z

Some IOMMUs accept an IOMMU_NOEXEC protection flag in addition to
IOMMU_READ and IOMMU_WRITE. Expose this as an IOMMU capability.

Signed-off-by: Antonios Motakis <a.motakis-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org>
---
include/linux/iommu.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index fc464d2..7e152fb 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -57,8 +57,9 @@ struct iommu_domain {
struct iommu_domain_geometry geometry;
};

-#define IOMMU_CAP_CACHE_COHERENCY 0x1
-#define IOMMU_CAP_INTR_REMAP 0x2 /* isolates device intrs */
+#define IOMMU_CAP_CACHE_COHERENCY (1 << 0)
+#define IOMMU_CAP_INTR_REMAP (1 << 1) /* isolates device intrs */
+#define IOMMU_CAP_NOEXEC (1 << 2) /* IOMMU_NOEXEC flag */

/*
* Following constraints are specifc to FSL_PAMUV1:
--
1.8.3.2