Sieu Mun Tang | 9f22cbf | 2022-03-02 11:04:09 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2020-2022, Intel Corporation. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <arch_helpers.h> |
| 8 | #include <lib/mmio.h> |
| 9 | |
| 10 | #include "socfpga_fcs.h" |
| 11 | #include "socfpga_mailbox.h" |
| 12 | #include "socfpga_sip_svc.h" |
| 13 | |
| 14 | uint32_t intel_fcs_random_number_gen(uint64_t addr, uint64_t *ret_size, |
| 15 | uint32_t *mbox_error) |
| 16 | { |
| 17 | int status; |
| 18 | unsigned int i; |
| 19 | unsigned int resp_len = FCS_RANDOM_WORD_SIZE; |
| 20 | uint32_t random_data[FCS_RANDOM_WORD_SIZE] = {0U}; |
| 21 | |
| 22 | if (!is_address_in_ddr_range(addr, FCS_RANDOM_BYTE_SIZE)) { |
| 23 | return INTEL_SIP_SMC_STATUS_REJECTED; |
| 24 | } |
| 25 | |
| 26 | status = mailbox_send_cmd(MBOX_JOB_ID, MBOX_FCS_RANDOM_GEN, NULL, 0U, |
| 27 | CMD_CASUAL, random_data, &resp_len); |
| 28 | |
| 29 | if (status < 0) { |
| 30 | *mbox_error = -status; |
| 31 | return INTEL_SIP_SMC_STATUS_ERROR; |
| 32 | } |
| 33 | |
| 34 | if (resp_len != FCS_RANDOM_WORD_SIZE) { |
| 35 | *mbox_error = GENERIC_RESPONSE_ERROR; |
| 36 | return INTEL_SIP_SMC_STATUS_ERROR; |
| 37 | } |
| 38 | |
| 39 | *ret_size = FCS_RANDOM_BYTE_SIZE; |
| 40 | |
| 41 | for (i = 0U; i < FCS_RANDOM_WORD_SIZE; i++) { |
| 42 | mmio_write_32(addr, random_data[i]); |
| 43 | addr += MBOX_WORD_BYTE; |
| 44 | } |
| 45 | |
| 46 | flush_dcache_range(addr - *ret_size, *ret_size); |
| 47 | |
| 48 | return INTEL_SIP_SMC_STATUS_OK; |
| 49 | } |
| 50 | |
| 51 | uint32_t intel_fcs_send_cert(uint64_t addr, uint64_t size, |
| 52 | uint32_t *send_id) |
| 53 | { |
| 54 | int status; |
| 55 | |
| 56 | if (!is_address_in_ddr_range(addr, size)) { |
| 57 | return INTEL_SIP_SMC_STATUS_REJECTED; |
| 58 | } |
| 59 | |
| 60 | status = mailbox_send_cmd_async(send_id, MBOX_CMD_VAB_SRC_CERT, |
| 61 | (uint32_t *)addr, size / MBOX_WORD_BYTE, |
| 62 | CMD_DIRECT); |
| 63 | |
| 64 | if (status < 0) { |
| 65 | return INTEL_SIP_SMC_STATUS_ERROR; |
| 66 | } |
| 67 | |
| 68 | return INTEL_SIP_SMC_STATUS_OK; |
| 69 | } |
| 70 | |
| 71 | uint32_t intel_fcs_get_provision_data(uint32_t *send_id) |
| 72 | { |
| 73 | int status; |
| 74 | |
| 75 | status = mailbox_send_cmd_async(send_id, MBOX_FCS_GET_PROVISION, |
| 76 | NULL, 0U, CMD_DIRECT); |
| 77 | |
| 78 | if (status < 0) { |
| 79 | return INTEL_SIP_SMC_STATUS_ERROR; |
| 80 | } |
| 81 | |
| 82 | return INTEL_SIP_SMC_STATUS_OK; |
| 83 | } |
| 84 | |
| 85 | uint32_t intel_fcs_cryption(uint32_t mode, uint32_t src_addr, |
| 86 | uint32_t src_size, uint32_t dst_addr, |
| 87 | uint32_t dst_size, uint32_t *send_id) |
| 88 | { |
| 89 | int status; |
| 90 | uint32_t cmd; |
| 91 | |
| 92 | if (!is_address_in_ddr_range(src_addr, src_size) || |
| 93 | !is_address_in_ddr_range(dst_addr, dst_size)) { |
| 94 | return INTEL_SIP_SMC_STATUS_REJECTED; |
| 95 | } |
| 96 | |
| 97 | fcs_crypt_payload payload = { |
| 98 | FCS_CRYPTION_DATA_0, |
| 99 | src_addr, |
| 100 | src_size, |
| 101 | dst_addr, |
| 102 | dst_size }; |
| 103 | |
| 104 | if (mode != 0U) { |
| 105 | cmd = MBOX_FCS_ENCRYPT_REQ; |
| 106 | } else { |
| 107 | cmd = MBOX_FCS_DECRYPT_REQ; |
| 108 | } |
| 109 | |
| 110 | status = mailbox_send_cmd_async(send_id, cmd, (uint32_t *) &payload, |
| 111 | sizeof(fcs_crypt_payload) / MBOX_WORD_BYTE, |
| 112 | CMD_INDIRECT); |
| 113 | inv_dcache_range(dst_addr, dst_size); |
| 114 | |
| 115 | if (status < 0) { |
| 116 | return INTEL_SIP_SMC_STATUS_REJECTED; |
| 117 | } |
| 118 | |
| 119 | return INTEL_SIP_SMC_STATUS_OK; |
| 120 | } |