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[v4,1/5] tee: add sec_world_id to struct tee_shm

Message ID 20210819110655.739318-2-jens.wiklander@linaro.org
State Superseded
Headers show
Series Add FF-A support in OP-TEE driver | expand

Commit Message

Jens Wiklander Aug. 19, 2021, 11:06 a.m. UTC 
Adds sec_world_id to struct tee_shm which describes a shared memory
object. sec_world_id can be used by a driver to store an id assigned by
secure world.

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

---
 include/linux/tee_drv.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

-- 
2.31.1
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Patch

diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h
index 54269e47ac9a..1a29f0e66e13 100644
--- a/include/linux/tee_drv.h
+++ b/include/linux/tee_drv.h
@@ -196,7 +196,11 @@  int tee_session_calc_client_uuid(uuid_t *uuid, u32 connection_method,
  * @num_pages:	number of locked pages
  * @dmabuf:	dmabuf used to for exporting to user space
  * @flags:	defined by TEE_SHM_* in tee_drv.h
- * @id:		unique id of a shared memory object on this device
+ * @id:		unique id of a shared memory object on this device, shared
+ *		with user space
+ * @sec_world_id:
+ *		secure world assigned id of this shared memory object, not
+ *		used by all drivers
  *
  * This pool is only supposed to be accessed directly from the TEE
  * subsystem and from drivers that implements their own shm pool manager.
@@ -212,6 +216,7 @@  struct tee_shm {
 	struct dma_buf *dmabuf;
 	u32 flags;
 	int id;
+	u64 sec_world_id;
 };
 
 /**