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| author |   Sumit Garg <sumit.garg@linaro.org> | 2021-06-14 17:33:15 -0500 |
|---|---|---|
| committer |   Jens Wiklander <jens.wiklander@linaro.org> | 2021-07-21 07:55:50 +0200 |
| commit | 376e4199e327a5cf29b8ec8fb0f64f3d8b429819 (patch) | |
| tree | 77dbe6218db409a2179fb212d9ea40270c75c8c9 /drivers/tee/optee/call.c | |
| parent | tee: add tee_shm_alloc_kernel_buf() (diff) | |
| download | linux-dev-376e4199e327a5cf29b8ec8fb0f64f3d8b429819.tar.xz linux-dev-376e4199e327a5cf29b8ec8fb0f64f3d8b429819.zip | |
tee: Correct inappropriate usage of TEE_SHM_DMA_BUF flag
Currently TEE_SHM_DMA_BUF flag has been inappropriately used to not
register shared memory allocated for private usage by underlying TEE
driver: OP-TEE in this case. So rather add a new flag as TEE_SHM_PRIV
that can be utilized by underlying TEE drivers for private allocation
and usage of shared memory.
With this corrected, allow tee_shm_alloc_kernel_buf() to allocate a
shared memory region without the backing of dma-buf.
Cc: stable@vger.kernel.org
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Co-developed-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Diffstat (limited to 'drivers/tee/optee/call.c')
| -rw-r--r-- | drivers/tee/optee/call.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tee/optee/call.c b/drivers/tee/optee/call.c index 387e94768182..945f03da0223 100644 --- a/drivers/tee/optee/call.c +++ b/drivers/tee/optee/call.c @@ -184,7 +184,7 @@ static struct tee_shm *get_msg_arg(struct tee_context *ctx, size_t num_params, struct optee_msg_arg *ma; shm = tee_shm_alloc(ctx, OPTEE_MSG_GET_ARG_SIZE(num_params), - TEE_SHM_MAPPED); + TEE_SHM_MAPPED | TEE_SHM_PRIV); if (IS_ERR(shm)) return shm; |