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tee: add sec_world_id to struct tee_shm

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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>
This commit is contained in:
Jens Wiklander 2021-03-25 15:08:44 +01:00
parent 7f565d0ead
commit 9028b2463c
1 changed files with 6 additions and 1 deletions
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7
include/linux/tee_drv.h
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@ -197,7 +197,11 @@ int tee_session_calc_client_uuid(uuid_t *uuid, u32 connection_method,
* @num_pages: number of locked pages * @num_pages: number of locked pages
* @dmabuf: dmabuf used to for exporting to user space * @dmabuf: dmabuf used to for exporting to user space
* @flags: defined by TEE_SHM_* in tee_drv.h * @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 * This pool is only supposed to be accessed directly from the TEE
* subsystem and from drivers that implements their own shm pool manager. * subsystem and from drivers that implements their own shm pool manager.
@ -213,6 +217,7 @@ struct tee_shm {
struct dma_buf *dmabuf; struct dma_buf *dmabuf;
u32 flags; u32 flags;
int id; int id;
u64 sec_world_id;
}; };
/** /**