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https://github.com/ARM-software/arm-trusted-firmware.git
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7f70cd2923
At this stage of development Non Volatile counters are not implemented in the Diphda platform. This commit disables their use during the Trusted Board Boot by overriding the NV counters get/set functions. Change-Id: I8dcbebe0281cc4d0837c283ff637e20b850988ef Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/*
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* Copyright (c) 2021, 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 <plat/arm/common/plat_arm.h>
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/*
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* Return the ROTPK hash in the following ASN.1 structure in DER format:
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*
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* AlgorithmIdentifier ::= SEQUENCE {
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* algorithm OBJECT IDENTIFIER,
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* parameters ANY DEFINED BY algorithm OPTIONAL
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* }
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*
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* DigestInfo ::= SEQUENCE {
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* digestAlgorithm AlgorithmIdentifier,
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* digest OCTET STRING
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* }
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*
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* The function returns 0 on success. Any other value is treated as error by the
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* Trusted Board Boot. The function also reports extra information related
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* to the ROTPK in the flags parameter: ROTPK_IS_HASH, ROTPK_NOT_DEPLOYED.
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*
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* Refer to the TF-A porting-guide document for more details.
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*/
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int plat_get_rotpk_info(void *cookie, void **key_ptr, unsigned int *key_len,
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unsigned int *flags)
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{
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return arm_get_rotpk_info(cookie, key_ptr, key_len, flags);
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}
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/*
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* STUB overriding the non-volatile counter reading.
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* NV counters are not implemented at this stage of development.
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* Return: 0 = success
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*/
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int plat_get_nv_ctr(void *cookie, unsigned int *nv_ctr)
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{
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*nv_ctr = DIPHDA_FW_NVCTR_VAL;
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return 0;
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}
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/*
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* STUB overriding the non-volatile counter updating.
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* NV counters are not implemented at this stage of development.
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* Return: 0 = success
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*/
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int plat_set_nv_ctr(void *cookie, unsigned int nv_ctr)
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{
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return 0;
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}
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