tee: optee: making OPTEE_SHM_NUM_PRIV_PAGES configurable via Kconfig

This change adds KCONFIG option to set number of pages out of whole shared memory to be used for OP-TEE driver private data structures. Signed-off-by: Sahil Malhotra <[email protected]> [jw: fixing trivial merge conflict] Signed-off-by: Jens Wiklander <[email protected]>
xen-troops · May 5, 2021 · 4d4eb31 · 4d4eb31
1 parent 7f7e529
commit 4d4eb31
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diff --git a/drivers/tee/optee/Kconfig b/drivers/tee/optee/Kconfig
@@ -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.
diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c
@@ -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