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| author | Igor Opaniuk <igor.opaniuk@linaro.org> | 2019-01-24 19:32:31 +0200 |
|---|---|---|
| committer | Jens Wiklander <jens.wiklander@linaro.org> | 2019-02-28 13:49:29 +0100 |
| commit | 4f062dc1b759299851939524ff755b20542d8fc1 (patch) | |
| tree | b54608b54650df3efd4d3c0c8fac484874da31fa /drivers/tee | |
| parent | 5fe8b1cc6a03c46b3061e808256d39dcebd0d0f0 (diff) | |
| download | linux-0-day-4f062dc1b759299851939524ff755b20542d8fc1.tar.gz linux-0-day-4f062dc1b759299851939524ff755b20542d8fc1.tar.xz | |
tee: add cancellation support to client interface
Add support of cancellation request to the TEE kernel internal
client interface. Can be used by software TPM drivers, that leverage
TEE under the hood (for instance TPM2.0 mobile profile), for requesting
cancellation of time-consuming operations (RSA key-pair generation etc.).
Signed-off-by: Igor Opaniuk <igor.opaniuk@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Diffstat (limited to 'drivers/tee')
| -rw-r--r-- | drivers/tee/tee_core.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c index 25f3b9cc8908f..ecffdd8a29b71 100644 --- a/drivers/tee/tee_core.c +++ b/drivers/tee/tee_core.c @@ -1039,6 +1039,15 @@ int tee_client_invoke_func(struct tee_context *ctx, } EXPORT_SYMBOL_GPL(tee_client_invoke_func); +int tee_client_cancel_req(struct tee_context *ctx, + struct tee_ioctl_cancel_arg *arg) +{ + if (!ctx->teedev->desc->ops->cancel_req) + return -EINVAL; + return ctx->teedev->desc->ops->cancel_req(ctx, arg->cancel_id, + arg->session); +} + static int tee_client_device_match(struct device *dev, struct device_driver *drv) { |