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-rw-r--r--include/uapi/linux/tee.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/uapi/linux/tee.h b/include/uapi/linux/tee.h
index d41a07afe3fc..4b9eb064d7e7 100644
--- a/include/uapi/linux/tee.h
+++ b/include/uapi/linux/tee.h
@@ -155,6 +155,13 @@ struct tee_ioctl_buf_data {
*/
#define TEE_IOCTL_PARAM_ATTR_TYPE_MASK 0xff
+/* Meta parameter carrying extra information about the message. */
+#define TEE_IOCTL_PARAM_ATTR_META 0x100
+
+/* Mask of all known attr bits */
+#define TEE_IOCTL_PARAM_ATTR_MASK \
+ (TEE_IOCTL_PARAM_ATTR_TYPE_MASK | TEE_IOCTL_PARAM_ATTR_META)
+
/*
* Matches TEEC_LOGIN_* in GP TEE Client API
* Are only defined for GP compliant TEEs