From 4883df6ebbcd0537d8052f76f8803bf86468e48c Mon Sep 17 00:00:00 2001 From: Jens Wiklander Date: Fri, 23 Dec 2016 13:13:34 +0100 Subject: BACKPORT: tee: add TEE_IOCTL_PARAM_ATTR_META Adds TEE_IOCTL_PARAM_ATTR_META which can be used to indicate meta parameters when communicating with user space. These meta parameters can be used by supplicant support multiple parallel requests at a time. Change-Id: Id119468872ef96c941da0dfbbabed59e55366f12 Reviewed-by: Etienne Carriere Signed-off-by: Jens Wiklander (cherry picked from commit f2aa97240c84b8f258710e297ba60048bd9c153e) Signed-off-by: Victor Chong --- include/uapi/linux/tee.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/uapi/linux/tee.h') diff --git a/include/uapi/linux/tee.h b/include/uapi/linux/tee.h index 688782e90140..267c12e7fd79 100644 --- a/include/uapi/linux/tee.h +++ b/include/uapi/linux/tee.h @@ -154,6 +154,13 @@ 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 -- cgit v1.2.3