blob: 64dc1967deb2f77a70b550f60a45b10badc11e86 [file] [log] [blame]
/*
* Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <debug.h>
#include <stdlib.h>
/* mbed TLS headers */
#include <mbedtls/memory_buffer_alloc.h>
#include <mbedtls/platform.h>
#include <mbedtls_config.h>
#include <mbedtls_common.h>
/*
* mbed TLS heap
*/
#if (TF_MBEDTLS_KEY_ALG_ID == TF_MBEDTLS_ECDSA) \
|| (TF_MBEDTLS_KEY_ALG_ID == TF_MBEDTLS_RSA_AND_ECDSA)
#define MBEDTLS_HEAP_SIZE (13*1024)
#elif (TF_MBEDTLS_KEY_ALG_ID == TF_MBEDTLS_RSA)
#define MBEDTLS_HEAP_SIZE (7*1024)
#endif
static unsigned char heap[MBEDTLS_HEAP_SIZE];
static void cleanup(void)
{
ERROR("EXIT from BL2\n");
panic();
}
/*
* mbed TLS initialization function
*/
void mbedtls_init(void)
{
static int ready;
if (!ready) {
if (atexit(cleanup))
panic();
/* Initialize the mbed TLS heap */
mbedtls_memory_buffer_alloc_init(heap, MBEDTLS_HEAP_SIZE);
#ifdef MBEDTLS_PLATFORM_SNPRINTF_ALT
/* Use reduced version of snprintf to save space. */
mbedtls_platform_set_snprintf(tf_snprintf);
#endif
ready = 1;
}
}