diff options
| author | Aristo Chen <aristo.chen@canonical.com> | 2026-01-12 23:48:29 +0800 |
|---|---|---|
| committer | Jens Wiklander <jens.wiklander@linaro.org> | 2026-01-14 12:04:34 +0100 |
| commit | 241bdf7253502c56251ef8b25ab9cad5b6547422 (patch) | |
| tree | 432b7c7122ada43ac1f1a25898668b2313cba398 /include/linux | |
| parent | 8f0b4cce4481fb22653697cced8d0d04027cb1e8 (diff) | |
tee: add revision sysfs attribute
Add a generic TEE revision sysfs attribute backed by a new
optional get_tee_revision() callback. The revision string is
diagnostic-only and must not be used to infer feature support.
Signed-off-by: Aristo Chen <aristo.chen@canonical.com>
Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/tee_core.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/tee_core.h b/include/linux/tee_core.h index 1f3e5dad6d0d..ee5f0bd41f43 100644 --- a/include/linux/tee_core.h +++ b/include/linux/tee_core.h @@ -76,6 +76,9 @@ struct tee_device { /** * struct tee_driver_ops - driver operations vtable * @get_version: returns version of driver + * @get_tee_revision: returns revision string (diagnostic only); + * do not infer feature support from this, use + * TEE_IOC_VERSION instead * @open: called for a context when the device file is opened * @close_context: called when the device file is closed * @release: called to release the context @@ -95,9 +98,12 @@ struct tee_device { * client closes the device file, even if there are existing references to the * context. The TEE driver can use @close_context to start cleaning up. */ + struct tee_driver_ops { void (*get_version)(struct tee_device *teedev, struct tee_ioctl_version_data *vers); + int (*get_tee_revision)(struct tee_device *teedev, + char *buf, size_t len); int (*open)(struct tee_context *ctx); void (*close_context)(struct tee_context *ctx); void (*release)(struct tee_context *ctx); @@ -123,6 +129,9 @@ struct tee_driver_ops { int (*shm_unregister)(struct tee_context *ctx, struct tee_shm *shm); }; +/* Size for TEE revision string buffer used by get_tee_revision(). */ +#define TEE_REVISION_STR_SIZE 128 + /** * struct tee_desc - Describes the TEE driver to the subsystem * @name: name of driver |