if (data.flags)
return -EINVAL;
- shm = tee_shm_register(ctx, data.addr, data.length,
- TEE_SHM_DMA_BUF | TEE_SHM_USER_MAPPED);
+ shm = tee_shm_register_user_buf(ctx, data.addr, data.length);
if (IS_ERR(shm))
return PTR_ERR(shm);
void teedev_ctx_put(struct tee_context *ctx);
struct tee_shm *tee_shm_alloc_user_buf(struct tee_context *ctx, size_t size);
+struct tee_shm *tee_shm_register_user_buf(struct tee_context *ctx,
+ unsigned long addr, size_t length);
#endif /*TEE_PRIVATE_H*/
}
EXPORT_SYMBOL_GPL(tee_shm_register);
+/**
+ * tee_shm_register_user_buf() - Register a userspace shared memory buffer
+ * @ctx: Context that registers the shared memory
+ * @addr: The userspace address of the shared buffer
+ * @length: Length of the shared buffer
+ *
+ * @returns a pointer to 'struct tee_shm'
+ */
+struct tee_shm *tee_shm_register_user_buf(struct tee_context *ctx,
+ unsigned long addr, size_t length)
+{
+ return tee_shm_register(ctx, addr, length,
+ TEE_SHM_DMA_BUF | TEE_SHM_USER_MAPPED);
+}
+
+/**
+ * tee_shm_register_kernel_buf() - Register kernel memory to be shared with
+ * secure world
+ * @ctx: Context that registers the shared memory
+ * @addr: The buffer
+ * @length: Length of the buffer
+ *
+ * @returns a pointer to 'struct tee_shm'
+ */
+
+struct tee_shm *tee_shm_register_kernel_buf(struct tee_context *ctx,
+ void *addr, size_t length)
+{
+ return tee_shm_register(ctx, (unsigned long)addr, length,
+ TEE_SHM_DMA_BUF | TEE_SHM_KERNEL_MAPPED);
+}
+EXPORT_SYMBOL_GPL(tee_shm_register_kernel_buf);
+
static int tee_shm_fop_release(struct inode *inode, struct file *filp)
{
tee_shm_put(filp->private_data);
*/
struct tee_shm *tee_shm_register(struct tee_context *ctx, unsigned long addr,
size_t length, u32 flags);
+struct tee_shm *tee_shm_register_kernel_buf(struct tee_context *ctx,
+ void *addr, size_t length);
/**
* tee_shm_is_registered() - Check if shared memory object in registered in TEE