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From:   Jens Wiklander <jens.wiklander@linaro.org>
To:     linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        op-tee@lists.trustedfirmware.org
Cc:     Sumit Garg <sumit.garg@linaro.org>,
        Sudeep Holla <sudeep.holla@arm.com>,
        Marc Bonnici <marc.bonnici@arm.com>,
        Jerome Forissier <jerome@forissier.org>,
        sughosh.ganu@linaro.org, Jens Wiklander <jens.wiklander@linaro.org>
Subject: [PATCH v4 1/5] tee: add sec_world_id to struct tee_shm
Date:   Thu, 19 Aug 2021 13:06:51 +0200
Message-Id: <20210819110655.739318-2-jens.wiklander@linaro.org>
In-Reply-To: <20210819110655.739318-1-jens.wiklander@linaro.org>
References: <20210819110655.739318-1-jens.wiklander@linaro.org>
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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>
---
 include/linux/tee_drv.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h
index 54269e47ac9a..1a29f0e66e13 100644
--- a/include/linux/tee_drv.h
+++ b/include/linux/tee_drv.h
@@ -196,7 +196,11 @@ int tee_session_calc_client_uuid(uuid_t *uuid, u32 connection_method,
  * @num_pages:	number of locked pages
  * @dmabuf:	dmabuf used to for exporting to user space
  * @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
  * subsystem and from drivers that implements their own shm pool manager.
@@ -212,6 +216,7 @@ struct tee_shm {
 	struct dma_buf *dmabuf;
 	u32 flags;
 	int id;
+	u64 sec_world_id;
 };
 
 /**
-- 
2.31.1