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https://github.com/brain-hackers/u-boot-brain
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dfaec76029
Extend the instantiate_rng() function and the corresponding CAAM job descriptor to instantiate all RNG state handles. This moves the RNG instantiation code in line with the CAAM kernel driver. Previously, only the first state handle was instantiated. The second one was instantiated by the CAAM kernel driver. This works if the kernel runs in secure mode, but fails in non-secure mode since the kernel driver uses DEC0 directly instead of over the job ring interface. Instantiating all RNG state handles in u-boot removes the need for using DEC0 in the kernel driver, making it possible to use the CAAM in non-secure mode. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Reviewed-by: York Sun <york.sun@nxp.com>
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/*
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* Copyright 2014 Freescale Semiconductor, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*
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*/
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#ifndef __JOBDESC_H
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#define __JOBDESC_H
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#include <common.h>
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#include <asm/io.h>
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#include "rsa_caam.h"
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#define KEY_IDNFR_SZ_BYTES 16
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#ifdef CONFIG_CMD_DEKBLOB
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/* inline_cnstr_jobdesc_blob_dek:
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* Intializes and constructs the job descriptor for DEK encapsulation
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* using the given parameters.
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* @desc: reference to the job descriptor
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* @plain_txt: reference to the DEK
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* @enc_blob: reference where to store the blob
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* @in_sz: size in bytes of the DEK
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* @return: 0 on success, ECONSTRJDESC otherwise
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*/
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int inline_cnstr_jobdesc_blob_dek(uint32_t *desc, const uint8_t *plain_txt,
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uint8_t *enc_blob, uint32_t in_sz);
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#endif
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void inline_cnstr_jobdesc_hash(uint32_t *desc,
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const uint8_t *msg, uint32_t msgsz, uint8_t *digest,
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u32 alg_type, uint32_t alg_size, int sg_tbl);
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void inline_cnstr_jobdesc_blob_encap(uint32_t *desc, uint8_t *key_idnfr,
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uint8_t *plain_txt, uint8_t *enc_blob,
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uint32_t in_sz);
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void inline_cnstr_jobdesc_blob_decap(uint32_t *desc, uint8_t *key_idnfr,
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uint8_t *enc_blob, uint8_t *plain_txt,
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uint32_t out_sz);
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void inline_cnstr_jobdesc_rng_instantiation(uint32_t *desc, int handle);
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void inline_cnstr_jobdesc_pkha_rsaexp(uint32_t *desc,
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struct pk_in_params *pkin, uint8_t *out,
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uint32_t out_siz);
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#endif
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