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Diffstat (limited to 'drivers/tee/optee/optee_msg.h')
-rw-r--r--drivers/tee/optee/optee_msg.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/tee/optee/optee_msg.h b/drivers/tee/optee/optee_msg.h
index 81ff593ac4ec..e3d72d09c484 100644
--- a/drivers/tee/optee/optee_msg.h
+++ b/drivers/tee/optee/optee_msg.h
@@ -9,7 +9,7 @@
#include <linux/types.h>
/*
- * This file defines the OP-TEE message protocol used to communicate
+ * This file defines the OP-TEE message protocol (ABI) used to communicate
* with an instance of OP-TEE running in secure world.
*
* This file is divided into two sections.
@@ -144,9 +144,10 @@ struct optee_msg_param_value {
* @tmem: parameter by temporary memory reference
* @rmem: parameter by registered memory reference
* @value: parameter by opaque value
+ * @octets: parameter by octet string
*
* @attr & OPTEE_MSG_ATTR_TYPE_MASK indicates if tmem, rmem or value is used in
- * the union. OPTEE_MSG_ATTR_TYPE_VALUE_* indicates value,
+ * the union. OPTEE_MSG_ATTR_TYPE_VALUE_* indicates value or octets,
* OPTEE_MSG_ATTR_TYPE_TMEM_* indicates @tmem and
* OPTEE_MSG_ATTR_TYPE_RMEM_* indicates @rmem,
* OPTEE_MSG_ATTR_TYPE_NONE indicates that none of the members are used.
@@ -157,6 +158,7 @@ struct optee_msg_param {
struct optee_msg_param_tmem tmem;
struct optee_msg_param_rmem rmem;
struct optee_msg_param_value value;
+ u8 octets[24];
} u;
};