Define the user-configurable PSA config flag in config.h
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 251d4f0..0b755e3 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -3671,6 +3671,17 @@
*/
//#define MBEDTLS_PSA_HMAC_DRBG_MD_TYPE MBEDTLS_MD_SHA256
+/** \def PSA_KEY_SLOT_COUNT
+ * Restrict the PSA library to supporting a maximum amount of simultaneously
+ * loaded keys. A loaded key is a key stored by the PSA Crypto core as a
+ * volatile key, or a persistent key which is loaded temporarily by the
+ * library as part of a crypto operation in flight.
+ *
+ * If this option is unset, the library will fall back to a default value of
+ * 32 keys.
+ */
+//#define PSA_KEY_SLOT_COUNT 32
+
/* SSL Cache options */
//#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT 86400 /**< 1 day */
//#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES 50 /**< Maximum entries in cache */
diff --git a/include/psa/crypto_extra.h b/include/psa/crypto_extra.h
index 14b5be3..a10bb8b 100644
--- a/include/psa/crypto_extra.h
+++ b/include/psa/crypto_extra.h
@@ -39,6 +39,10 @@
/* UID for secure storage seed */
#define PSA_CRYPTO_ITS_RANDOM_SEED_UID 0xFFFFFF52
+/* See config.h for definition */
+#if !defined(PSA_KEY_SLOT_COUNT)
+#define PSA_KEY_SLOT_COUNT 32
+#endif
/** \addtogroup attributes
* @{
diff --git a/library/psa_crypto_slot_management.h b/library/psa_crypto_slot_management.h
index 32ccd49..b0148bd 100644
--- a/library/psa_crypto_slot_management.h
+++ b/library/psa_crypto_slot_management.h
@@ -25,12 +25,6 @@
#include "psa_crypto_core.h"
#include "psa_crypto_se.h"
-/* Number of key slots (plus one because 0 is not used).
- * The value is a compile-time constant for now, for simplicity. */
-#if !defined(PSA_KEY_SLOT_COUNT)
-#define PSA_KEY_SLOT_COUNT 32
-#endif
-
/** Range of volatile key identifiers.
*
* The last PSA_KEY_SLOT_COUNT identifiers of the implementation range
