Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * Copyright 2018-2019 NXP |
| 4 | */ |
| 5 | |
| 6 | #include <common.h> |
Simon Glass | ed38aef | 2020-05-10 11:40:03 -0600 | [diff] [blame] | 7 | #include <command.h> |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 8 | #include <errno.h> |
Simon Glass | 0f2af88 | 2020-05-10 11:40:05 -0600 | [diff] [blame] | 9 | #include <log.h> |
Simon Glass | 3ba929a | 2020-10-30 21:38:53 -0600 | [diff] [blame] | 10 | #include <asm/global_data.h> |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 11 | #include <asm/io.h> |
| 12 | #include <asm/arch/sci/sci.h> |
| 13 | #include <asm/mach-imx/sys_proto.h> |
| 14 | #include <asm/arch-imx/cpu.h> |
| 15 | #include <asm/arch/sys_proto.h> |
| 16 | #include <asm/arch/image.h> |
| 17 | #include <console.h> |
Oliver Graute | f46161a | 2020-11-06 09:09:29 +0100 | [diff] [blame] | 18 | #include <cpu_func.h> |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 19 | |
| 20 | DECLARE_GLOBAL_DATA_PTR; |
| 21 | |
| 22 | #define SEC_SECURE_RAM_BASE (0x31800000UL) |
| 23 | #define SEC_SECURE_RAM_END_BASE (SEC_SECURE_RAM_BASE + 0xFFFFUL) |
| 24 | #define SECO_LOCAL_SEC_SEC_SECURE_RAM_BASE (0x60000000UL) |
| 25 | |
| 26 | #define SECO_PT 2U |
| 27 | |
| 28 | static inline bool check_in_dram(ulong addr) |
| 29 | { |
| 30 | int i; |
Masahiro Yamada | f7ed78b | 2020-06-26 15:13:33 +0900 | [diff] [blame] | 31 | struct bd_info *bd = gd->bd; |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 32 | |
| 33 | for (i = 0; i < CONFIG_NR_DRAM_BANKS; ++i) { |
| 34 | if (bd->bi_dram[i].size) { |
| 35 | if (addr >= bd->bi_dram[i].start && |
| 36 | addr < (bd->bi_dram[i].start + bd->bi_dram[i].size)) |
| 37 | return true; |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | return false; |
| 42 | } |
| 43 | |
| 44 | int authenticate_os_container(ulong addr) |
| 45 | { |
| 46 | struct container_hdr *phdr; |
| 47 | int i, ret = 0; |
| 48 | int err; |
| 49 | sc_rm_mr_t mr; |
| 50 | sc_faddr_t start, end; |
| 51 | u16 length; |
| 52 | struct boot_img_t *img; |
| 53 | unsigned long s, e; |
| 54 | |
| 55 | if (addr % 4) { |
| 56 | puts("Error: Image's address is not 4 byte aligned\n"); |
| 57 | return -EINVAL; |
| 58 | } |
| 59 | |
| 60 | if (!check_in_dram(addr)) { |
| 61 | puts("Error: Image's address is invalid\n"); |
| 62 | return -EINVAL; |
| 63 | } |
| 64 | |
| 65 | phdr = (struct container_hdr *)addr; |
| 66 | if (phdr->tag != 0x87 && phdr->version != 0x0) { |
| 67 | printf("Error: Wrong container header\n"); |
| 68 | return -EFAULT; |
| 69 | } |
| 70 | |
| 71 | if (!phdr->num_images) { |
| 72 | printf("Error: Wrong container, no image found\n"); |
| 73 | return -EFAULT; |
| 74 | } |
| 75 | |
| 76 | length = phdr->length_lsb + (phdr->length_msb << 8); |
| 77 | |
| 78 | debug("container length %u\n", length); |
| 79 | memcpy((void *)SEC_SECURE_RAM_BASE, (const void *)addr, |
| 80 | ALIGN(length, CONFIG_SYS_CACHELINE_SIZE)); |
| 81 | |
Ye Li | d962d56 | 2019-10-14 23:08:46 -0700 | [diff] [blame] | 82 | err = sc_seco_authenticate(-1, SC_SECO_AUTH_CONTAINER, |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 83 | SECO_LOCAL_SEC_SEC_SECURE_RAM_BASE); |
| 84 | if (err) { |
| 85 | printf("Authenticate container hdr failed, return %d\n", |
| 86 | err); |
| 87 | ret = -EIO; |
| 88 | goto exit; |
| 89 | } |
| 90 | |
| 91 | /* Copy images to dest address */ |
| 92 | for (i = 0; i < phdr->num_images; i++) { |
| 93 | img = (struct boot_img_t *)(addr + |
| 94 | sizeof(struct container_hdr) + |
| 95 | i * sizeof(struct boot_img_t)); |
| 96 | |
Oliver Graute | 8ad653b | 2020-11-06 09:09:30 +0100 | [diff] [blame] | 97 | debug("img %d, dst 0x%x, src 0x%lux, size 0x%x\n", |
Seb Fagard | c307ad0 | 2020-03-30 17:13:31 +0200 | [diff] [blame] | 98 | i, (uint32_t) img->dst, img->offset + addr, img->size); |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 99 | |
| 100 | memcpy((void *)img->dst, (const void *)(img->offset + addr), |
| 101 | img->size); |
| 102 | |
| 103 | s = img->dst & ~(CONFIG_SYS_CACHELINE_SIZE - 1); |
Peng Fan | 194dccc | 2020-04-22 15:36:34 +0800 | [diff] [blame] | 104 | e = ALIGN(img->dst + img->size, CONFIG_SYS_CACHELINE_SIZE) - 1; |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 105 | |
| 106 | flush_dcache_range(s, e); |
| 107 | |
| 108 | /* Find the memreg and set permission for seco pt */ |
| 109 | err = sc_rm_find_memreg(-1, &mr, s, e); |
| 110 | if (err) { |
Oliver Graute | 7d7721a | 2020-11-06 09:09:31 +0100 | [diff] [blame] | 111 | printf("Error: can't find memreg for image load address 0x%llx, error %d\n", img->dst, err); |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 112 | ret = -ENOMEM; |
| 113 | goto exit; |
| 114 | } |
| 115 | |
| 116 | err = sc_rm_get_memreg_info(-1, mr, &start, &end); |
| 117 | if (!err) |
| 118 | debug("memreg %u 0x%llx -- 0x%llx\n", mr, start, end); |
| 119 | |
| 120 | err = sc_rm_set_memreg_permissions(-1, mr, SECO_PT, |
| 121 | SC_RM_PERM_FULL); |
| 122 | if (err) { |
| 123 | printf("Set permission failed for img %d, error %d\n", |
| 124 | i, err); |
| 125 | ret = -EPERM; |
| 126 | goto exit; |
| 127 | } |
| 128 | |
Ye Li | d962d56 | 2019-10-14 23:08:46 -0700 | [diff] [blame] | 129 | err = sc_seco_authenticate(-1, SC_SECO_VERIFY_IMAGE, |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 130 | (1 << i)); |
| 131 | if (err) { |
| 132 | printf("Authenticate img %d failed, return %d\n", |
| 133 | i, err); |
| 134 | ret = -EIO; |
| 135 | } |
| 136 | |
| 137 | err = sc_rm_set_memreg_permissions(-1, mr, SECO_PT, |
| 138 | SC_RM_PERM_NONE); |
| 139 | if (err) { |
| 140 | printf("Remove permission failed for img %d, err %d\n", |
| 141 | i, err); |
| 142 | ret = -EPERM; |
| 143 | } |
| 144 | |
| 145 | if (ret) |
| 146 | goto exit; |
| 147 | } |
| 148 | |
| 149 | exit: |
Ye Li | d962d56 | 2019-10-14 23:08:46 -0700 | [diff] [blame] | 150 | if (sc_seco_authenticate(-1, SC_SECO_REL_CONTAINER, 0) != SC_ERR_NONE) |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 151 | printf("Error: release container failed!\n"); |
| 152 | |
| 153 | return ret; |
| 154 | } |
| 155 | |
Simon Glass | ed38aef | 2020-05-10 11:40:03 -0600 | [diff] [blame] | 156 | static int do_authenticate(struct cmd_tbl *cmdtp, int flag, int argc, |
| 157 | char *const argv[]) |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 158 | { |
| 159 | ulong addr; |
| 160 | |
| 161 | if (argc < 2) |
| 162 | return CMD_RET_USAGE; |
| 163 | |
Simon Glass | 3ff49ec | 2021-07-24 09:03:29 -0600 | [diff] [blame^] | 164 | addr = hextoul(argv[1], NULL); |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 165 | |
| 166 | printf("Authenticate OS container at 0x%lx\n", addr); |
| 167 | |
| 168 | if (authenticate_os_container(addr)) |
| 169 | return CMD_RET_FAILURE; |
| 170 | |
| 171 | return CMD_RET_SUCCESS; |
| 172 | } |
| 173 | |
| 174 | static void display_life_cycle(u16 lc) |
| 175 | { |
| 176 | printf("Lifecycle: 0x%04X, ", lc); |
| 177 | switch (lc) { |
| 178 | case 0x1: |
| 179 | printf("Pristine\n\n"); |
| 180 | break; |
| 181 | case 0x2: |
| 182 | printf("Fab\n\n"); |
| 183 | break; |
| 184 | case 0x8: |
| 185 | printf("Open\n\n"); |
| 186 | break; |
| 187 | case 0x20: |
| 188 | printf("NXP closed\n\n"); |
| 189 | break; |
| 190 | case 0x80: |
| 191 | printf("OEM closed\n\n"); |
| 192 | break; |
| 193 | case 0x100: |
| 194 | printf("Partial field return\n\n"); |
| 195 | break; |
| 196 | case 0x200: |
| 197 | printf("Full field return\n\n"); |
| 198 | break; |
| 199 | case 0x400: |
| 200 | printf("No return\n\n"); |
| 201 | break; |
| 202 | default: |
| 203 | printf("Unknown\n\n"); |
| 204 | break; |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | #define AHAB_AUTH_CONTAINER_REQ 0x87 |
| 209 | #define AHAB_VERIFY_IMAGE_REQ 0x88 |
| 210 | |
| 211 | #define AHAB_NO_AUTHENTICATION_IND 0xee |
| 212 | #define AHAB_BAD_KEY_HASH_IND 0xfa |
| 213 | #define AHAB_INVALID_KEY_IND 0xf9 |
| 214 | #define AHAB_BAD_SIGNATURE_IND 0xf0 |
| 215 | #define AHAB_BAD_HASH_IND 0xf1 |
| 216 | |
| 217 | static void display_ahab_auth_event(u32 event) |
| 218 | { |
| 219 | u8 cmd = (event >> 16) & 0xff; |
| 220 | u8 resp_ind = (event >> 8) & 0xff; |
| 221 | |
| 222 | switch (cmd) { |
| 223 | case AHAB_AUTH_CONTAINER_REQ: |
| 224 | printf("\tCMD = AHAB_AUTH_CONTAINER_REQ (0x%02X)\n", cmd); |
| 225 | printf("\tIND = "); |
| 226 | break; |
| 227 | case AHAB_VERIFY_IMAGE_REQ: |
| 228 | printf("\tCMD = AHAB_VERIFY_IMAGE_REQ (0x%02X)\n", cmd); |
| 229 | printf("\tIND = "); |
| 230 | break; |
| 231 | default: |
| 232 | return; |
| 233 | } |
| 234 | |
| 235 | switch (resp_ind) { |
| 236 | case AHAB_NO_AUTHENTICATION_IND: |
| 237 | printf("AHAB_NO_AUTHENTICATION_IND (0x%02X)\n\n", resp_ind); |
| 238 | break; |
| 239 | case AHAB_BAD_KEY_HASH_IND: |
| 240 | printf("AHAB_BAD_KEY_HASH_IND (0x%02X)\n\n", resp_ind); |
| 241 | break; |
| 242 | case AHAB_INVALID_KEY_IND: |
| 243 | printf("AHAB_INVALID_KEY_IND (0x%02X)\n\n", resp_ind); |
| 244 | break; |
| 245 | case AHAB_BAD_SIGNATURE_IND: |
| 246 | printf("AHAB_BAD_SIGNATURE_IND (0x%02X)\n\n", resp_ind); |
| 247 | break; |
| 248 | case AHAB_BAD_HASH_IND: |
| 249 | printf("AHAB_BAD_HASH_IND (0x%02X)\n\n", resp_ind); |
| 250 | break; |
| 251 | default: |
| 252 | printf("Unknown Indicator (0x%02X)\n\n", resp_ind); |
| 253 | break; |
| 254 | } |
| 255 | } |
| 256 | |
Simon Glass | ed38aef | 2020-05-10 11:40:03 -0600 | [diff] [blame] | 257 | static int do_ahab_status(struct cmd_tbl *cmdtp, int flag, int argc, |
| 258 | char *const argv[]) |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 259 | { |
| 260 | int err; |
| 261 | u8 idx = 0U; |
| 262 | u32 event; |
| 263 | u16 lc; |
| 264 | |
| 265 | err = sc_seco_chip_info(-1, &lc, NULL, NULL, NULL); |
| 266 | if (err != SC_ERR_NONE) { |
| 267 | printf("Error in get lifecycle\n"); |
| 268 | return -EIO; |
| 269 | } |
| 270 | |
| 271 | display_life_cycle(lc); |
| 272 | |
| 273 | err = sc_seco_get_event(-1, idx, &event); |
| 274 | while (err == SC_ERR_NONE) { |
| 275 | printf("SECO Event[%u] = 0x%08X\n", idx, event); |
| 276 | display_ahab_auth_event(event); |
| 277 | |
| 278 | idx++; |
| 279 | err = sc_seco_get_event(-1, idx, &event); |
| 280 | } |
| 281 | |
| 282 | if (idx == 0) |
| 283 | printf("No SECO Events Found!\n\n"); |
| 284 | |
| 285 | return 0; |
| 286 | } |
| 287 | |
| 288 | static int confirm_close(void) |
| 289 | { |
| 290 | puts("Warning: Please ensure your sample is in NXP closed state, " |
| 291 | "OEM SRK hash has been fused, \n" |
| 292 | " and you are able to boot a signed image successfully " |
| 293 | "without any SECO events reported.\n" |
| 294 | " If not, your sample will be unrecoverable.\n" |
| 295 | "\nReally perform this operation? <y/N>\n"); |
| 296 | |
| 297 | if (confirm_yesno()) |
| 298 | return 1; |
| 299 | |
| 300 | puts("Ahab close aborted\n"); |
| 301 | return 0; |
| 302 | } |
| 303 | |
Simon Glass | ed38aef | 2020-05-10 11:40:03 -0600 | [diff] [blame] | 304 | static int do_ahab_close(struct cmd_tbl *cmdtp, int flag, int argc, |
| 305 | char *const argv[]) |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 306 | { |
Clément Péron | e61e6bc | 2020-12-21 18:31:28 +0100 | [diff] [blame] | 307 | int confirmed = argc >= 2 && !strcmp(argv[1], "-y"); |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 308 | int err; |
| 309 | u16 lc; |
| 310 | |
Clément Péron | e61e6bc | 2020-12-21 18:31:28 +0100 | [diff] [blame] | 311 | if (!confirmed && !confirm_close()) |
Peng Fan | f1e0f9f | 2019-09-25 08:11:14 +0000 | [diff] [blame] | 312 | return -EACCES; |
| 313 | |
| 314 | err = sc_seco_chip_info(-1, &lc, NULL, NULL, NULL); |
| 315 | if (err != SC_ERR_NONE) { |
| 316 | printf("Error in get lifecycle\n"); |
| 317 | return -EIO; |
| 318 | } |
| 319 | |
| 320 | if (lc != 0x20) { |
| 321 | puts("Current lifecycle is NOT NXP closed, can't move to OEM closed\n"); |
| 322 | display_life_cycle(lc); |
| 323 | return -EPERM; |
| 324 | } |
| 325 | |
| 326 | err = sc_seco_forward_lifecycle(-1, 16); |
| 327 | if (err != SC_ERR_NONE) { |
| 328 | printf("Error in forward lifecycle to OEM closed\n"); |
| 329 | return -EIO; |
| 330 | } |
| 331 | |
| 332 | printf("Change to OEM closed successfully\n"); |
| 333 | |
| 334 | return 0; |
| 335 | } |
| 336 | |
| 337 | U_BOOT_CMD(auth_cntr, CONFIG_SYS_MAXARGS, 1, do_authenticate, |
| 338 | "autenticate OS container via AHAB", |
| 339 | "addr\n" |
| 340 | "addr - OS container hex address\n" |
| 341 | ); |
| 342 | |
| 343 | U_BOOT_CMD(ahab_status, CONFIG_SYS_MAXARGS, 1, do_ahab_status, |
| 344 | "display AHAB lifecycle and events from seco", |
| 345 | "" |
| 346 | ); |
| 347 | |
| 348 | U_BOOT_CMD(ahab_close, CONFIG_SYS_MAXARGS, 1, do_ahab_close, |
| 349 | "Change AHAB lifecycle to OEM closed", |
| 350 | "" |
| 351 | ); |