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Documentation improvements

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Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2023-09-06 17:16:36 +02:00 committed by Yanray Wang
parent da26a5172c
commit e23fa41f10
1 changed files with 21 additions and 11 deletions
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32
configs/config-tfm.h
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@ -1,7 +1,7 @@
/**
* \file config-tfm.h
*
* \brief TF-M configuration with tweaks for a successful build and test.
* \brief TF-M medium profile, adapted to work on other platforms.
*/
/*
* Copyright The Mbed TLS Contributors
@ -20,19 +20,26 @@
* limitations under the License.
*/
/* TF-M Configuration Options */
#include "../configs/ext/tfm_mbedcrypto_config_profile_medium.h"
/* TF-M medium profile: mbedtls legacy configuration */
#include "ext/tfm_mbedcrypto_config_profile_medium.h"
/* TF-M PSA Crypto Configuration */
/* TF-M medium profile: PSA crypto configuration */
#define MBEDTLS_PSA_CRYPTO_CONFIG_FILE "../configs/ext/crypto_config_profile_medium.h"
/*****************************************************************************/
/* Tweak configuration based on TF-M config for a successful build and test. */
/*****************************************************************************/
/***********************************************************/
/* Tweak the configuration to remove dependencies on TF-M. */
/***********************************************************/
/* MBEDTLS_PSA_CRYPTO_SPM needs third party files, so disable it. */
/* MBEDTLS_PSA_CRYPTO_SPM needs third-party files, so disable it. */
#undef MBEDTLS_PSA_CRYPTO_SPM
/* TF-M provides its own (dummy) implemenations which Mbed TLS doesn't need. */
/* TF-M provides its own dummy implementations to save code size.
* We don't have any way to disable the tests that need these feature,
* so we just keep AES decryption enabled. We will resolve this though
* an official way to disable AES decryption, then this deviation
* will no longer be needed:
* https://github.com/Mbed-TLS/mbedtls/issues/7368
*/
#undef MBEDTLS_AES_SETKEY_DEC_ALT
#undef MBEDTLS_AES_DECRYPT_ALT
/* The configuration we have enables MBEDTLS_PK_PARSE_C and MBEDTLS_PK_WRITE_C
@ -47,7 +54,10 @@
#undef MBEDTLS_PK_PARSE_C
#undef MBEDTLS_PK_WRITE_C
/* Use built-in platform entropy functions. */
/* Use built-in platform entropy functions (TF-M provides its own). */
#undef MBEDTLS_NO_PLATFORM_ENTROPY
/* Disable buffer-based memory allocator */
/* Disable buffer-based memory allocator. This isn't strictly required,
* but using the native allocator is faster and works better with
* memory management analysis frameworks such as ASan. */
#undef MBEDTLS_MEMORY_BUFFER_ALLOC_C