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

Jens Wiklander
2021-08-19T11:07:12Z

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(-)

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;
};

/**
--
2.31.1