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| author | Volodymyr Babchuk <vlad.babchuk@gmail.com> | 2017-11-29 15:48:29 +0300 |
|---|---|---|
| committer | Jens Wiklander <jens.wiklander@linaro.org> | 2017-12-15 15:32:31 +0300 |
| commit | de5c6dfc43daa59feb824505f80fe4591f8f8f85 (patch) | |
| tree | 77076fafdac73ed93dfc0f80eba1f669799599c6 /drivers/tee/optee/optee_smc.h | |
| parent | e0c69ae8bfb500facebe1fa331f9400c216eaab0 (diff) | |
| download | linux-de5c6dfc43daa59feb824505f80fe4591f8f8f85.tar.xz | |
tee: optee: Update protocol definitions
There were changes in REE<->OP-TEE ABI recently.
Now ABI allows us to pass non-contiguous memory buffers as list of
pages to OP-TEE. This can be achieved by using new parameter attribute
OPTEE_MSG_ATTR_NONCONTIG.
OP-TEE also is able to use all non-secure RAM for shared buffers. This
new capability is enabled with OPTEE_SMC_SEC_CAP_DYNAMIC_SHM flag.
This patch adds necessary definitions to the protocol definition files at
Linux side.
Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Diffstat (limited to 'drivers/tee/optee/optee_smc.h')
| -rw-r--r-- | drivers/tee/optee/optee_smc.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/tee/optee/optee_smc.h b/drivers/tee/optee/optee_smc.h index 069c8e1429de..7cd327243ada 100644 --- a/drivers/tee/optee/optee_smc.h +++ b/drivers/tee/optee/optee_smc.h @@ -222,6 +222,13 @@ struct optee_smc_get_shm_config_result { #define OPTEE_SMC_SEC_CAP_HAVE_RESERVED_SHM BIT(0) /* Secure world can communicate via previously unregistered shared memory */ #define OPTEE_SMC_SEC_CAP_UNREGISTERED_SHM BIT(1) + +/* + * Secure world supports commands "register/unregister shared memory", + * secure world accepts command buffers located in any parts of non-secure RAM + */ +#define OPTEE_SMC_SEC_CAP_DYNAMIC_SHM BIT(2) + #define OPTEE_SMC_FUNCID_EXCHANGE_CAPABILITIES 9 #define OPTEE_SMC_EXCHANGE_CAPABILITIES \ OPTEE_SMC_FAST_CALL_VAL(OPTEE_SMC_FUNCID_EXCHANGE_CAPABILITIES) |