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Misc enhancement for tee driver subsystem

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* Replaces getnstimeofday64() with ktime_get_real_ts64()
 * Adds OPTEE_SHM_NUM_PRIV_PAGES to configure how many pages should be
   statically reserved for driver private allocations
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Merge tag 'tee-drv-for-4.18' of git://git.linaro.org/people/jens.wiklander/linux-tee into next/drivers

Misc enhancement for tee driver subsystem

* Replaces getnstimeofday64() with ktime_get_real_ts64()
* Adds OPTEE_SHM_NUM_PRIV_PAGES to configure how many pages should be
  statically reserved for driver private allocations

* tag 'tee-drv-for-4.18' of git://git.linaro.org/people/jens.wiklander/linux-tee:
  tee: optee: making OPTEE_SHM_NUM_PRIV_PAGES configurable via Kconfig
  tee: replace getnstimeofday64() with ktime_get_real_ts64()

Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson 2018-07-02 10:18:09 -07:00
commit 3287ecdf14
3 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/tee/optee/Kconfig
View File

@ -5,3 +5,11 @@ config OPTEE
help
This implements the OP-TEE Trusted Execution Environment (TEE)
driver.
config OPTEE_SHM_NUM_PRIV_PAGES
int "Private Shared Memory Pages"
default 1
depends on OPTEE
help
This sets the number of private shared memory pages to be
used by OP-TEE TEE driver.

2
drivers/tee/optee/core.c
View File

@ -32,7 +32,7 @@
#define DRIVER_NAME "optee"
#define OPTEE_SHM_NUM_PRIV_PAGES 1
#define OPTEE_SHM_NUM_PRIV_PAGES CONFIG_OPTEE_SHM_NUM_PRIV_PAGES
/**
* optee_from_msg_param() - convert from OPTEE_MSG parameters to

2
drivers/tee/optee/rpc.c
View File

@ -48,7 +48,7 @@ static void handle_rpc_func_cmd_get_time(struct optee_msg_arg *arg)
OPTEE_MSG_ATTR_TYPE_VALUE_OUTPUT)
goto bad;
getnstimeofday64(&ts);
ktime_get_real_ts64(&ts);
arg->params[0].u.value.a = ts.tv_sec;
arg->params[0].u.value.b = ts.tv_nsec;