Merge remote-tracking branch 'vfio/next'

[karo-tx-linux.git] / include / uapi / linux / vfio.h

diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index 9fd7b5d8df2fa357f434a899cccfa7810f826107..751b69f858c80411c910f21db7fb50c8902e94cf 100644 (file)
--- a/include/uapi/linux/vfio.h
+++ b/include/uapi/linux/vfio.h
@@ -38,6 +38,13 @@
 
 #define VFIO_SPAPR_TCE_v2_IOMMU                7
 
+/*
+ * The No-IOMMU IOMMU offers no translation or isolation for devices and
+ * supports no ioctls outside of VFIO_CHECK_EXTENSION.  Use of VFIO's No-IOMMU
+ * code will taint the host kernel and should be used with extreme caution.
+ */
+#define VFIO_NOIOMMU_IOMMU             8
+
 /*
  * The IOCTL interface is designed for extensibility by embedding the
  * structure length (argsz) and flags into structures passed between