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| author | Sumit Garg <sumit.garg@linaro.org> | 2019-01-29 11:19:36 +0530 |
|---|---|---|
| committer | Jens Wiklander <jens.wiklander@linaro.org> | 2019-02-01 15:12:46 +0100 |
| commit | 42bf4152d8a79f89f5456dee63a1f364fbce2dd6 (patch) | |
| tree | 4f89fc2690e28b92610cfc5f7a9a31beb481c2e6 /include/linux/tee_drv.h | |
| parent | 49a57857aeea06ca831043acbb0fa5e0f50602fd (diff) | |
| download | lwn-42bf4152d8a79f89f5456dee63a1f364fbce2dd6.tar.gz lwn-42bf4152d8a79f89f5456dee63a1f364fbce2dd6.zip | |
tee: add supp_nowait flag in tee_context struct
This flag indicates that requests in this context should not wait for
tee-supplicant daemon to be started if not present and just return
with an error code. It is needed for requests which should be
non-blocking in nature like ones arising from TEE based kernel drivers
or any in kernel api that uses TEE internal client interface.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Diffstat (limited to 'include/linux/tee_drv.h')
| -rw-r--r-- | include/linux/tee_drv.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h index 6cfe05893a76..5076502c07d7 100644 --- a/include/linux/tee_drv.h +++ b/include/linux/tee_drv.h @@ -47,6 +47,11 @@ struct tee_shm_pool; * @releasing: flag that indicates if context is being released right now. * It is needed to break circular dependency on context during * shared memory release. + * @supp_nowait: flag that indicates that requests in this context should not + * wait for tee-supplicant daemon to be started if not present + * and just return with an error code. It is needed for requests + * that arises from TEE based kernel drivers that should be + * non-blocking in nature. */ struct tee_context { struct tee_device *teedev; @@ -54,6 +59,7 @@ struct tee_context { void *data; struct kref refcount; bool releasing; + bool supp_nowait; }; struct tee_param_memref { |