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