2 * SEC Descriptor Construction Library
3 * Basic job descriptor construction
5 * Copyright 2014 Freescale Semiconductor, Inc.
7 * SPDX-License-Identifier: GPL-2.0+
12 #include "desc_constr.h"
15 #define KEY_BLOB_SIZE 32
18 void inline_cnstr_jobdesc_hash(uint32_t *desc,
19 const uint8_t *msg, uint32_t msgsz, uint8_t *digest,
20 u32 alg_type, uint32_t alg_size, int sg_tbl)
22 /* SHA 256 , output is of length 32 words */
23 uint32_t storelen = alg_size;
25 dma_addr_t dma_addr_in, dma_addr_out;
27 dma_addr_in = virt_to_phys((void *)msg);
28 dma_addr_out = virt_to_phys((void *)digest);
30 init_job_desc(desc, 0);
31 append_operation(desc, OP_TYPE_CLASS2_ALG |
32 OP_ALG_AAI_HASH | OP_ALG_AS_INITFINAL |
33 OP_ALG_ENCRYPT | OP_ALG_ICV_OFF | alg_type);
35 options = LDST_CLASS_2_CCB | FIFOLD_TYPE_MSG | FIFOLD_TYPE_LAST2;
37 options |= FIFOLDST_SGF;
39 options |= FIFOLDST_EXT;
40 append_fifo_load(desc, dma_addr_in, 0, options);
41 append_cmd(desc, msgsz);
43 append_fifo_load(desc, dma_addr_in, msgsz, options);
46 append_store(desc, dma_addr_out, storelen,
47 LDST_CLASS_2_CCB | LDST_SRCDST_BYTE_CONTEXT);
50 void inline_cnstr_jobdesc_blob_encap(uint32_t *desc, uint8_t *key_idnfr,
51 uint8_t *plain_txt, uint8_t *enc_blob,
54 dma_addr_t dma_addr_key_idnfr, dma_addr_in, dma_addr_out;
55 uint32_t key_sz = KEY_IDNFR_SZ_BYTES;
56 /* output blob will have 32 bytes key blob in beginning and
57 * 16 byte HMAC identifier at end of data blob */
58 uint32_t out_sz = in_sz + KEY_BLOB_SIZE + MAC_SIZE;
60 dma_addr_key_idnfr = virt_to_phys((void *)key_idnfr);
61 dma_addr_in = virt_to_phys((void *)plain_txt);
62 dma_addr_out = virt_to_phys((void *)enc_blob);
64 init_job_desc(desc, 0);
66 append_key(desc, dma_addr_key_idnfr, key_sz, CLASS_2);
68 append_seq_in_ptr(desc, dma_addr_in, in_sz, 0);
70 append_seq_out_ptr(desc, dma_addr_out, out_sz, 0);
72 append_operation(desc, OP_TYPE_ENCAP_PROTOCOL | OP_PCLID_BLOB);
75 void inline_cnstr_jobdesc_blob_decap(uint32_t *desc, uint8_t *key_idnfr,
76 uint8_t *enc_blob, uint8_t *plain_txt,
79 dma_addr_t dma_addr_key_idnfr, dma_addr_in, dma_addr_out;
80 uint32_t key_sz = KEY_IDNFR_SZ_BYTES;
81 uint32_t in_sz = out_sz + KEY_BLOB_SIZE + MAC_SIZE;
83 dma_addr_key_idnfr = virt_to_phys((void *)key_idnfr);
84 dma_addr_in = virt_to_phys((void *)enc_blob);
85 dma_addr_out = virt_to_phys((void *)plain_txt);
87 init_job_desc(desc, 0);
89 append_key(desc, dma_addr_key_idnfr, key_sz, CLASS_2);
91 append_seq_in_ptr(desc, dma_addr_in, in_sz, 0);
93 append_seq_out_ptr(desc, dma_addr_out, out_sz, 0);
95 append_operation(desc, OP_TYPE_DECAP_PROTOCOL | OP_PCLID_BLOB);
99 * Descriptor to instantiate RNG State Handle 0 in normal mode and
100 * load the JDKEK, TDKEK and TDSK registers
102 void inline_cnstr_jobdesc_rng_instantiation(uint32_t *desc)
106 init_job_desc(desc, 0);
108 /* INIT RNG in non-test mode */
109 append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG |
113 jump_cmd = append_jump(desc, JUMP_CLASS_CLASS1);
114 set_jump_tgt_here(desc, jump_cmd);
117 * load 1 to clear written reg:
118 * resets the done interrrupt and returns the RNG to idle.
120 append_load_imm_u32(desc, 1, LDST_SRCDST_WORD_CLRW);
122 /* generate secure keys (non-test) */
123 append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG |