11 #include <asm/byteorder.h>
13 #include <file/file.h>
14 #include <talloc/talloc.h>
15 #include <list/list.h>
17 #include <process/process.h>
18 #include <types/types.h>
25 static const char *partition = "common";
26 static const char *sysparams_dir = "/sys/firmware/opal/sysparams/";
27 static const char *devtree_dir = "/proc/device-tree/";
28 static const int ipmi_timeout = 5000; /* milliseconds. */
34 struct list_item list;
37 struct platform_powerpc {
40 bool ipmi_bootdev_persistent;
41 int (*get_ipmi_bootdev)(
42 struct platform_powerpc *platform,
43 uint8_t *bootdev, bool *persistent);
44 int (*clear_ipmi_bootdev)(
45 struct platform_powerpc *platform,
47 int (*set_os_boot_sensor)(
48 struct platform_powerpc *platform);
49 void (*get_platform_versions)(struct system_info *info);
52 static const char *known_params[] = {
61 "petitboot,snapshots?",
66 #define to_platform_powerpc(p) \
67 (struct platform_powerpc *)(p->platform_data)
69 /* a partition max a max size of 64k * 16bytes = 1M */
70 static const int max_partition_size = 64 * 1024 * 16;
72 static bool param_is_known(const char *param, unsigned int len)
74 const char *known_param;
77 for (i = 0; known_params[i]; i++) {
78 known_param = known_params[i];
79 if (len == strlen(known_param) &&
80 !strncmp(param, known_param, len))
87 static int parse_nvram_params(struct platform_powerpc *platform,
90 char *pos, *name, *value;
91 unsigned int paramlen;
94 /* discard 2 header lines:
101 for (i = 0; i < len; i++) {
109 fprintf(stderr, "failure parsing nvram output\n");
113 for (pos = buf + i; pos < buf + len; pos += paramlen + 1) {
114 unsigned int namelen;
118 newline = strchr(pos, '\n');
124 paramlen = strlen(pos);
127 value = strchr(pos, '=');
131 namelen = value - name;
135 if (!param_is_known(name, namelen))
140 param = talloc(platform, struct param);
141 param->modified = false;
142 param->name = talloc_strndup(platform, name, namelen);
143 param->value = talloc_strdup(platform, value);
144 list_add(&platform->params, ¶m->list);
150 static int parse_nvram(struct platform_powerpc *platform)
152 struct process *process;
157 argv[1] = "--print-config";
158 argv[2] = "--partition";
162 process = process_create(platform);
163 process->path = "nvram";
164 process->argv = argv;
165 process->keep_stdout = true;
167 rc = process_run_sync(process);
169 if (rc || !process_exit_ok(process)) {
170 fprintf(stderr, "nvram process returned "
171 "non-zero exit status\n");
174 rc = parse_nvram_params(platform, process->stdout_buf,
175 process->stdout_len);
178 process_release(process);
182 static int write_nvram(struct platform_powerpc *platform)
184 struct process *process;
190 argv[1] = "--update-config";
192 argv[3] = "--partition";
196 process = process_create(platform);
197 process->path = "nvram";
198 process->argv = argv;
200 list_for_each_entry(&platform->params, param, list) {
203 if (!param->modified)
206 paramstr = talloc_asprintf(platform, "%s=%s",
207 param->name, param->value);
210 rc = process_run_sync(process);
212 talloc_free(paramstr);
214 if (rc || !process_exit_ok(process)) {
216 pb_log("nvram update process returned "
217 "non-zero exit status\n");
222 process_release(process);
226 static const char *get_param(struct platform_powerpc *platform,
231 list_for_each_entry(&platform->params, param, list)
232 if (!strcmp(param->name, name))
237 static void set_param(struct platform_powerpc *platform, const char *name,
242 list_for_each_entry(&platform->params, param, list) {
243 if (strcmp(param->name, name))
246 if (!strcmp(param->value, value))
249 talloc_free(param->value);
250 param->value = talloc_strdup(param, value);
251 param->modified = true;
256 param = talloc(platform, struct param);
257 param->modified = true;
258 param->name = talloc_strdup(platform, name);
259 param->value = talloc_strdup(platform, value);
260 list_add(&platform->params, ¶m->list);
263 static int parse_hwaddr(struct interface_config *ifconf, char *str)
267 if (strlen(str) != strlen("00:00:00:00:00:00"))
270 for (i = 0; i < HWADDR_SIZE; i++) {
274 byte[0] = str[i * 3 + 0];
275 byte[1] = str[i * 3 + 1];
278 x = strtoul(byte, &endp, 16);
279 if (endp != byte + 2)
282 ifconf->hwaddr[i] = x & 0xff;
288 static int parse_one_interface_config(struct config *config,
291 struct interface_config *ifconf;
294 ifconf = talloc_zero(config, struct interface_config);
296 if (!confstr || !strlen(confstr))
299 /* first token should be the mac address */
300 tok = strtok_r(confstr, ",", &saveptr);
304 if (parse_hwaddr(ifconf, tok))
307 /* second token is the method */
308 tok = strtok_r(NULL, ",", &saveptr);
309 if (!tok || !strlen(tok) || !strcmp(tok, "ignore")) {
310 ifconf->ignore = true;
312 } else if (!strcmp(tok, "dhcp")) {
313 ifconf->method = CONFIG_METHOD_DHCP;
315 } else if (!strcmp(tok, "static")) {
316 ifconf->method = CONFIG_METHOD_STATIC;
318 /* ip/mask, [optional] gateway, [optional] url */
319 tok = strtok_r(NULL, ",", &saveptr);
322 ifconf->static_config.address =
323 talloc_strdup(ifconf, tok);
325 tok = strtok_r(NULL, ",", &saveptr);
327 ifconf->static_config.gateway =
328 talloc_strdup(ifconf, tok);
331 tok = strtok_r(NULL, ",", &saveptr);
333 ifconf->static_config.url =
334 talloc_strdup(ifconf, tok);
338 pb_log("Unknown network configuration method %s\n", tok);
342 config->network.interfaces = talloc_realloc(config,
343 config->network.interfaces,
344 struct interface_config *,
345 ++config->network.n_interfaces);
347 config->network.interfaces[config->network.n_interfaces - 1] = ifconf;
355 static int parse_one_dns_config(struct config *config,
358 char *tok, *saveptr = NULL;
360 for (tok = strtok_r(confstr, ",", &saveptr); tok;
361 tok = strtok_r(NULL, ",", &saveptr)) {
363 char *server = talloc_strdup(config, tok);
365 config->network.dns_servers = talloc_realloc(config,
366 config->network.dns_servers, const char *,
367 ++config->network.n_dns_servers);
369 config->network.dns_servers[config->network.n_dns_servers - 1]
376 static void populate_network_config(struct platform_powerpc *platform,
377 struct config *config)
379 char *val, *saveptr = NULL;
383 cval = get_param(platform, "petitboot,network");
384 if (!cval || !strlen(cval))
387 val = talloc_strdup(config, cval);
392 tok = strtok_r(i == 0 ? val : NULL, " ", &saveptr);
396 if (!strncasecmp(tok, "dns,", strlen("dns,")))
397 parse_one_dns_config(config, tok + strlen("dns,"));
399 parse_one_interface_config(config, tok);
406 static int read_bootdev(void *ctx, char **pos, struct autoboot_option *opt)
408 char *delim = strchr(*pos, ' ');
409 int len, prefix = 0, rc = -1;
410 enum device_type type;
412 if (!strncmp(*pos, "uuid:", strlen("uuid:"))) {
413 prefix = strlen("uuid:");
414 opt->boot_type = BOOT_DEVICE_UUID;
415 } else if (!strncmp(*pos, "mac:", strlen("mac:"))) {
416 prefix = strlen("mac:");
417 opt->boot_type = BOOT_DEVICE_UUID;
419 type = find_device_type(*pos);
420 if (type != DEVICE_TYPE_UNKNOWN) {
422 opt->boot_type = BOOT_DEVICE_TYPE;
427 if (opt->boot_type == BOOT_DEVICE_UUID) {
429 len = (int)(delim - *pos) - prefix;
431 len = strlen(*pos) - prefix;
434 opt->uuid = talloc_strndup(ctx, *pos + prefix, len);
439 /* Always advance pointer to next option or end */
443 *pos += strlen(*pos);
448 static void populate_bootdev_config(struct platform_powerpc *platform,
449 struct config *config)
451 struct autoboot_option *opt, *new = NULL;
452 char *pos, *end, *old_dev = NULL;
453 unsigned int n_new = 0;
458 /* Check for old-style bootdev */
459 val = get_param(platform, "petitboot,bootdev");
460 if (val && strlen(val)) {
461 pos = talloc_strdup(config, val);
462 if (!strncmp(val, "uuid:", strlen("uuid:")))
463 len = strlen("uuid:");
464 else if (!strncmp(val, "mac:", strlen("mac:")))
465 len = strlen("mac:");
466 /* Make sure someone hasn't set a blank UUID */
467 if (len && *(val + len) != '\0')
468 old_dev = talloc_strdup(config, val + len);
471 /* Check for ordered bootdevs */
472 val = get_param(platform, "petitboot,bootdevs");
473 if (!val || !strlen(val)) {
476 pos = talloc_strdup(config, val);
477 end = strchr(pos, '\0');
480 while (pos && pos < end) {
481 opt = talloc(config, struct autoboot_option);
483 if (read_bootdev(config, &pos, opt)) {
484 pb_log("bootdev config is in an unknown format "
485 "(expected uuid:... or mac:...)\n");
490 new = talloc_realloc(config, new, struct autoboot_option,
498 if (!n_new && !old_dev) {
499 /* If autoboot has been disabled, clear the default options */
500 if (!config->autoboot_enabled) {
501 talloc_free(config->autoboot_opts);
502 config->n_autoboot_opts = 0;
507 conflict = old_dev && (!n_new ||
508 new[0].boot_type == BOOT_DEVICE_TYPE ||
509 /* Canonical UUIDs are 36 characters long */
510 strncmp(new[0].uuid, old_dev, 36));
513 talloc_free(config->autoboot_opts);
514 config->autoboot_opts = new;
515 config->n_autoboot_opts = n_new;
520 * Difference detected, defer to old format in case it has been updated
523 pb_debug("Old autoboot bootdev detected\n");
524 talloc_free(config->autoboot_opts);
525 config->autoboot_opts = talloc(config, struct autoboot_option);
526 config->autoboot_opts[0].boot_type = BOOT_DEVICE_UUID;
527 config->autoboot_opts[0].uuid = talloc_strdup(config, old_dev);
528 config->n_autoboot_opts = 1;
531 static void populate_config(struct platform_powerpc *platform,
532 struct config *config)
536 unsigned long timeout;
538 /* if the "auto-boot?' property is present and "false", disable auto
540 val = get_param(platform, "auto-boot?");
541 config->autoboot_enabled = !val || strcmp(val, "false");
543 val = get_param(platform, "petitboot,timeout");
545 timeout = strtoul(val, &end, 10);
547 if (timeout >= INT_MAX)
549 config->autoboot_timeout_sec = (int)timeout;
553 val = get_param(platform, "petitboot,language");
554 config->lang = val ? talloc_strdup(config, val) : NULL;
556 populate_network_config(platform, config);
558 populate_bootdev_config(platform, config);
560 if (!config->debug) {
561 val = get_param(platform, "petitboot,debug?");
562 config->debug = val && !strcmp(val, "true");
565 val = get_param(platform, "petitboot,write?");
567 config->allow_writes = !strcmp(val, "true");
569 val = get_param(platform, "petitboot,snapshots?");
571 config->disable_snapshots = !strcmp(val, "false");
573 val = get_param(platform, "petitboot,tty");
575 config->boot_tty = talloc_strdup(config, val);
578 static char *iface_config_str(void *ctx, struct interface_config *config)
582 /* todo: HWADDR size is hardcoded as 6, but we may need to handle
583 * different hardware address formats */
584 str = talloc_asprintf(ctx, "%02x:%02x:%02x:%02x:%02x:%02x,",
585 config->hwaddr[0], config->hwaddr[1],
586 config->hwaddr[2], config->hwaddr[3],
587 config->hwaddr[4], config->hwaddr[5]);
589 if (config->ignore) {
590 str = talloc_asprintf_append(str, "ignore");
592 } else if (config->method == CONFIG_METHOD_DHCP) {
593 str = talloc_asprintf_append(str, "dhcp");
595 } else if (config->method == CONFIG_METHOD_STATIC) {
596 str = talloc_asprintf_append(str, "static,%s%s%s%s%s",
597 config->static_config.address,
598 config->static_config.gateway ? "," : "",
599 config->static_config.gateway ?: "",
600 config->static_config.url ? "," : "",
601 config->static_config.url ?: "");
606 static char *dns_config_str(void *ctx, const char **dns_servers, int n)
611 str = talloc_strdup(ctx, "dns,");
612 for (i = 0; i < n; i++) {
613 str = talloc_asprintf_append(str, "%s%s",
621 static void update_string_config(struct platform_powerpc *platform,
622 const char *name, const char *value)
626 cur = get_param(platform, name);
628 /* don't set an empty parameter if it doesn't already exist */
629 if (!cur && !strlen(value))
632 set_param(platform, name, value);
635 static void update_network_config(struct platform_powerpc *platform,
636 struct config *config)
641 val = talloc_strdup(platform, "");
643 for (i = 0; i < config->network.n_interfaces; i++) {
644 char *iface_str = iface_config_str(platform,
645 config->network.interfaces[i]);
646 val = talloc_asprintf_append(val, "%s%s",
647 *val == '\0' ? "" : " ", iface_str);
648 talloc_free(iface_str);
651 if (config->network.n_dns_servers) {
652 char *dns_str = dns_config_str(platform,
653 config->network.dns_servers,
654 config->network.n_dns_servers);
655 val = talloc_asprintf_append(val, "%s%s",
656 *val == '\0' ? "" : " ", dns_str);
657 talloc_free(dns_str);
660 update_string_config(platform, "petitboot,network", val);
665 static void update_bootdev_config(struct platform_powerpc *platform,
666 struct config *config)
668 char *val = NULL, *boot_str = NULL, *tmp = NULL, *first = NULL;
669 struct autoboot_option *opt;
670 const char delim = ' ';
673 if (!config->n_autoboot_opts)
675 else if (config->autoboot_opts[0].boot_type == BOOT_DEVICE_UUID)
676 first = talloc_asprintf(config, "uuid:%s",
677 config->autoboot_opts[0].uuid);
681 for (i = 0; i < config->n_autoboot_opts; i++) {
682 opt = &config->autoboot_opts[i];
683 switch (opt->boot_type) {
684 case BOOT_DEVICE_TYPE:
685 boot_str = talloc_asprintf(config, "%s%c",
686 device_type_name(opt->type),
689 case BOOT_DEVICE_UUID:
690 boot_str = talloc_asprintf(config, "uuid:%s%c",
694 tmp = val = talloc_asprintf_append(val, "%s", boot_str);
697 update_string_config(platform, "petitboot,bootdevs", val);
698 update_string_config(platform, "petitboot,bootdev", first);
701 talloc_free(boot_str);
704 static int update_config(struct platform_powerpc *platform,
705 struct config *config, struct config *defaults)
710 if (config->autoboot_enabled == defaults->autoboot_enabled)
713 val = config->autoboot_enabled ? "true" : "false";
714 update_string_config(platform, "auto-boot?", val);
716 if (config->autoboot_timeout_sec == defaults->autoboot_timeout_sec)
719 val = tmp = talloc_asprintf(platform, "%d",
720 config->autoboot_timeout_sec);
722 if (config->ipmi_bootdev == IPMI_BOOTDEV_INVALID &&
723 platform->clear_ipmi_bootdev) {
724 platform->clear_ipmi_bootdev(platform,
725 config->ipmi_bootdev_persistent);
726 config->ipmi_bootdev = IPMI_BOOTDEV_NONE;
727 config->ipmi_bootdev_persistent = false;
730 update_string_config(platform, "petitboot,timeout", val);
734 val = config->lang ?: "";
735 update_string_config(platform, "petitboot,language", val);
737 if (config->allow_writes == defaults->allow_writes)
740 val = config->allow_writes ? "true" : "false";
741 update_string_config(platform, "petitboot,write?", val);
743 val = config->boot_tty ?: "";
744 update_string_config(platform, "petitboot,tty", val);
746 update_network_config(platform, config);
748 update_bootdev_config(platform, config);
750 return write_nvram(platform);
753 static void set_ipmi_bootdev(struct config *config, enum ipmi_bootdev bootdev,
756 config->ipmi_bootdev = bootdev;
757 config->ipmi_bootdev_persistent = persistent;
760 case IPMI_BOOTDEV_NONE:
761 case IPMI_BOOTDEV_DISK:
762 case IPMI_BOOTDEV_NETWORK:
763 case IPMI_BOOTDEV_CDROM:
766 case IPMI_BOOTDEV_SETUP:
767 config->autoboot_enabled = false;
769 case IPMI_BOOTDEV_SAFE:
770 config->autoboot_enabled = false;
771 config->safe_mode = true;
776 static int read_bootdev_sysparam(const char *name, uint8_t *val)
782 assert(strlen(sysparams_dir) + strlen(name) < sizeof(path));
783 snprintf(path, sizeof(path), "%s%s", sysparams_dir, name);
785 fd = open(path, O_RDONLY);
787 pb_debug("powerpc: can't access sysparam %s\n",
792 rc = read(fd, buf, sizeof(buf));
796 /* bootdev definitions should only be one byte in size */
798 pb_debug("powerpc: sysparam %s read returned %d\n",
803 pb_debug("powerpc: sysparam %s: 0x%02x\n", name, buf[0]);
805 if (!ipmi_bootdev_is_valid(buf[0]))
812 static int write_bootdev_sysparam(const char *name, uint8_t val)
817 assert(strlen(sysparams_dir) + strlen(name) < sizeof(path));
818 snprintf(path, sizeof(path), "%s%s", sysparams_dir, name);
820 fd = open(path, O_WRONLY);
822 pb_debug("powerpc: can't access sysparam %s for writing\n",
829 rc = write(fd, &val, sizeof(val));
830 if (rc == sizeof(val)) {
835 if (rc <= 0 && errno != EINTR) {
836 pb_log("powerpc: error updating sysparam %s: %s",
837 name, strerror(errno));
846 pb_debug("powerpc: set sysparam %s: 0x%02x\n", name, val);
851 static int clear_ipmi_bootdev_sysparams(
852 struct platform_powerpc *platform __attribute__((unused)),
856 /* invalidate default-boot-device setting */
857 write_bootdev_sysparam("default-boot-device", 0xff);
859 /* invalidate next-boot-device setting */
860 write_bootdev_sysparam("next-boot-device", 0xff);
865 static int get_ipmi_bootdev_sysparams(
866 struct platform_powerpc *platform __attribute__((unused)),
867 uint8_t *bootdev, bool *persistent)
869 uint8_t next_bootdev, default_bootdev;
870 bool next_valid, default_valid;
873 rc = read_bootdev_sysparam("next-boot-device", &next_bootdev);
874 next_valid = rc == 0;
876 rc = read_bootdev_sysparam("default-boot-device", &default_bootdev);
877 default_valid = rc == 0;
879 /* nothing valid? no need to change the config */
880 if (!next_valid && !default_valid)
883 *persistent = !next_valid;
884 *bootdev = next_valid ? next_bootdev : default_bootdev;
888 static int clear_ipmi_bootdev_ipmi(struct platform_powerpc *platform,
889 bool persistent __attribute__((unused)))
894 0x05, /* parameter selector: boot flags */
895 0x80, /* data 1: valid */
896 0x00, /* data 2: bootdev: no override */
897 0x00, /* data 3: system defaults */
898 0x00, /* data 4: no request for shared mode, mux defaults */
899 0x00, /* data 5: no instance request */
902 resp_len = sizeof(resp);
904 ipmi_transaction(platform->ipmi, IPMI_NETFN_CHASSIS,
905 IPMI_CMD_CHASSIS_SET_SYSTEM_BOOT_OPTIONS,
912 static int get_ipmi_bootdev_ipmi(struct platform_powerpc *platform,
913 uint8_t *bootdev, bool *persistent)
919 0x05, /* parameter selector: boot flags */
920 0x00, /* no set selector */
921 0x00, /* no block selector */
924 resp_len = sizeof(resp);
925 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_CHASSIS,
926 IPMI_CMD_CHASSIS_GET_SYSTEM_BOOT_OPTIONS,
931 pb_log("platform: error reading IPMI boot options\n");
935 if (resp_len != sizeof(resp)) {
936 pb_log("platform: unexpected length (%d) in "
937 "boot options response\n", resp_len);
941 pb_debug("IPMI get_bootdev response:\n");
942 for (int i = 0; i < resp_len; i++)
943 pb_debug("%x ", resp[i]);
947 pb_log("platform: non-zero completion code %d from IPMI req\n",
952 /* check for correct parameter version */
953 if ((resp[1] & 0xf) != 0x1) {
954 pb_log("platform: unexpected version (0x%x) in "
955 "boot options response\n", resp[0]);
959 /* check for valid paramters */
960 if (resp[2] & 0x80) {
961 pb_debug("platform: boot options are invalid/locked\n");
967 /* check for valid flags */
968 if (!(resp[3] & 0x80)) {
969 pb_debug("platform: boot flags are invalid, ignoring\n");
973 *persistent = resp[3] & 0x40;
974 *bootdev = (resp[4] >> 2) & 0x0f;
978 static int set_ipmi_os_boot_sensor(struct platform_powerpc *platform)
984 0x00, /* sensor number: os boot */
985 0xA9, /* operation: set everything */
986 0x00, /* sensor reading: none */
987 0x40, /* assertion mask lsb: set state 6 */
988 0x00, /* assertion mask msb: none */
989 0x00, /* deassertion mask lsb: none */
990 0x00, /* deassertion mask msb: none */
991 0x00, /* event data 1: none */
992 0x00, /* event data 2: none */
993 0x00, /* event data 3: none */
996 sensor_number = get_ipmi_sensor(platform, IPMI_SENSOR_ID_OS_BOOT);
997 if (sensor_number < 0) {
998 pb_log("Couldn't find OS boot sensor in device tree\n");
1002 req[0] = sensor_number;
1004 resp_len = sizeof(resp);
1006 ipmi_transaction(platform->ipmi, IPMI_NETFN_SE,
1007 IPMI_CMD_SENSOR_SET,
1010 ipmi_timeout); return 0;
1015 static void get_ipmi_bmc_mac(struct platform *p, uint8_t *buf)
1017 struct platform_powerpc *platform = p->platform_data;
1018 uint16_t resp_len = 8;
1020 uint8_t req[] = { 0x1, 0x5, 0x0, 0x0 };
1023 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_TRANSPORT,
1024 IPMI_CMD_TRANSPORT_GET_LAN_PARAMS,
1029 pb_debug("BMC MAC resp [%d][%d]:\n", rc, resp_len);
1031 if (rc == 0 && resp_len > 0) {
1032 for (i = 2; i < resp_len; i++) {
1033 pb_debug(" %x", resp[i]);
1034 buf[i - 2] = resp[i];
1042 * Retrieve info from the "Get Device ID" IPMI commands.
1043 * See Chapter 20.1 in the IPMIv2 specification.
1045 static void get_ipmi_bmc_versions(struct platform *p, struct system_info *info)
1047 struct platform_powerpc *platform = p->platform_data;
1048 uint16_t resp_len = 16;
1049 uint8_t resp[16], bcd;
1050 uint32_t aux_version;
1053 /* Retrieve info from current side */
1054 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_APP,
1055 IPMI_CMD_APP_GET_DEVICE_ID,
1060 pb_debug("BMC version resp [%d][%d]:\n", rc, resp_len);
1062 for (i = 0; i < resp_len; i++) {
1063 pb_debug(" %x", resp[i]);
1068 if (rc == 0 && resp_len == 16) {
1069 info->bmc_current = talloc_array(info, char *, 4);
1070 info->n_bmc_current = 4;
1072 info->bmc_current[0] = talloc_asprintf(info, "Device ID: 0x%x",
1074 info->bmc_current[1] = talloc_asprintf(info, "Device Rev: 0x%x",
1076 bcd = resp[4] & 0x0f;
1077 bcd += 10 * (resp[4] >> 4);
1078 memcpy(&aux_version, &resp[12], sizeof(aux_version));
1079 info->bmc_current[2] = talloc_asprintf(info,
1080 "Firmware version: %u.%02u.%05u",
1081 resp[3], bcd, aux_version);
1082 bcd = resp[5] & 0x0f;
1083 bcd += 10 * (resp[5] >> 4);
1084 info->bmc_current[3] = talloc_asprintf(info, "IPMI version: %u",
1087 pb_log("Failed to retrieve Device ID from IPMI\n");
1089 /* Retrieve info from golden side */
1090 memset(resp, 0, sizeof(resp));
1092 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_AMI,
1093 IPMI_CMD_APP_GET_DEVICE_ID_GOLDEN,
1098 pb_debug("BMC golden resp [%d][%d]:\n", rc, resp_len);
1100 for (i = 0; i < resp_len; i++) {
1101 pb_debug(" %x", resp[i]);
1106 if (rc == 0 && resp_len == 16) {
1107 info->bmc_golden = talloc_array(info, char *, 4);
1108 info->n_bmc_golden = 4;
1110 info->bmc_golden[0] = talloc_asprintf(info, "Device ID: 0x%x",
1112 info->bmc_golden[1] = talloc_asprintf(info, "Device Rev: 0x%x",
1114 bcd = resp[4] & 0x0f;
1115 bcd += 10 * (resp[4] >> 4);
1116 memcpy(&aux_version, &resp[12], sizeof(aux_version));
1117 info->bmc_golden[2] = talloc_asprintf(info,
1118 "Firmware version: %u.%02u.%u",
1119 resp[3], bcd, aux_version);
1120 bcd = resp[5] & 0x0f;
1121 bcd += 10 * (resp[5] >> 4);
1122 info->bmc_golden[3] = talloc_asprintf(info, "IPMI version: %u",
1125 pb_log("Failed to retrieve Golden Device ID from IPMI\n");
1128 static void get_ipmi_network_override(struct platform_powerpc *platform,
1129 struct config *config)
1131 uint16_t min_len = 12, resp_len = 53, version;
1132 const uint32_t magic_value = 0x21706221;
1133 uint8_t resp[resp_len];
1138 0x61, /* parameter selector: OEM section (network) */
1139 0x00, /* no set selector */
1140 0x00, /* no block selector */
1143 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_CHASSIS,
1144 IPMI_CMD_CHASSIS_GET_SYSTEM_BOOT_OPTIONS,
1149 pb_debug("IPMI net override resp [%d][%d]:\n", rc, resp_len);
1151 for (i = 0; i < resp_len; i++) {
1152 pb_debug(" %02x", resp[i]);
1153 if (i && (i + 1) % 16 == 0 && i != resp_len - 1)
1155 else if (i && (i + 1) % 8 == 0)
1162 pb_debug("IPMI network config option unavailable\n");
1166 if (resp_len < min_len) {
1167 pb_debug("IPMI net response too small\n");
1172 pb_log("platform: non-zero completion code %d from IPMI network req\n",
1177 /* Check for correct parameter version */
1178 if ((resp[1] & 0xf) != 0x1) {
1179 pb_log("platform: unexpected version (0x%x) in network override response\n",
1184 /* Check that the parameters are valid */
1185 if (resp[2] & 0x80) {
1186 pb_debug("platform: network override is invalid/locked\n");
1190 /* Check for valid parameters in the boot flags section */
1191 if (!(resp[3] & 0x80)) {
1192 pb_debug("platform: network override valid flag not set\n");
1195 /* Read the persistent flag; if it is set we need to save this config */
1196 persistent = resp[3] & 0x40;
1198 pb_debug("platform: network override is persistent\n");
1200 /* Check 4-byte cookie value */
1202 memcpy(&cookie, &resp[i], sizeof(cookie));
1203 cookie = __be32_to_cpu(cookie);
1204 if (cookie != magic_value) {
1205 pb_log("%s: Incorrect cookie %x\n", __func__, cookie);
1208 i += sizeof(cookie);
1210 /* Check 2-byte version number */
1211 memcpy(&version, &resp[i], sizeof(version));
1212 version = __be16_to_cpu(version);
1213 i += sizeof(version);
1215 pb_debug("Unexpected version: %u\n", version);
1219 /* Interpret the rest of the interface config */
1220 rc = parse_ipmi_interface_override(config, &resp[i], resp_len - i);
1222 if (!rc && persistent) {
1223 /* Write this new config to NVRAM */
1224 update_network_config(platform, config);
1225 rc = write_nvram(platform);
1227 pb_log("platform: Failed to save persistent interface override\n");
1231 static void get_active_consoles(struct config *config)
1234 char *fsp_prop = NULL;
1237 config->tty_list = talloc_array(config, char *, config->n_tty);
1238 if (!config->tty_list)
1241 config->tty_list[0] = talloc_asprintf(config->tty_list,
1242 "/dev/hvc0 [IPMI / Serial]");
1243 config->tty_list[1] = talloc_asprintf(config->tty_list,
1246 fsp_prop = talloc_asprintf(config, "%sfsps", devtree_dir);
1247 if (stat(fsp_prop, &sbuf) == 0) {
1248 /* FSP based machines also have a separate serial console */
1249 config->tty_list = talloc_realloc(config, config->tty_list,
1250 char *, config->n_tty + 1);
1251 if (!config->tty_list)
1253 config->tty_list[config->n_tty++] = talloc_asprintf(
1255 "/dev/hvc1 [Serial]");
1261 pb_log("Failed to allocate memory for tty_list\n");
1264 static int load_config(struct platform *p, struct config *config)
1266 struct platform_powerpc *platform = to_platform_powerpc(p);
1269 rc = parse_nvram(platform);
1273 populate_config(platform, config);
1275 if (platform->get_ipmi_bootdev) {
1276 bool bootdev_persistent;
1277 uint8_t bootdev = IPMI_BOOTDEV_INVALID;
1278 rc = platform->get_ipmi_bootdev(platform, &bootdev,
1279 &bootdev_persistent);
1280 if (!rc && ipmi_bootdev_is_valid(bootdev)) {
1281 set_ipmi_bootdev(config, bootdev, bootdev_persistent);
1286 get_ipmi_network_override(platform, config);
1288 get_active_consoles(config);
1293 static int save_config(struct platform *p, struct config *config)
1295 struct platform_powerpc *platform = to_platform_powerpc(p);
1296 struct config *defaults;
1299 defaults = talloc_zero(platform, struct config);
1300 config_set_defaults(defaults);
1302 rc = update_config(platform, config, defaults);
1304 talloc_free(defaults);
1308 static void pre_boot(struct platform *p, const struct config *config)
1310 struct platform_powerpc *platform = to_platform_powerpc(p);
1312 if (!config->ipmi_bootdev_persistent && platform->clear_ipmi_bootdev)
1313 platform->clear_ipmi_bootdev(platform, false);
1315 if (platform->set_os_boot_sensor)
1316 platform->set_os_boot_sensor(platform);
1319 static int get_sysinfo(struct platform *p, struct system_info *sysinfo)
1321 struct platform_powerpc *platform = p->platform_data;
1322 char *buf, *filename;
1325 filename = talloc_asprintf(platform, "%smodel", devtree_dir);
1326 rc = read_file(platform, filename, &buf, &len);
1328 sysinfo->type = talloc_steal(sysinfo, buf);
1329 talloc_free(filename);
1331 filename = talloc_asprintf(platform, "%ssystem-id", devtree_dir);
1332 rc = read_file(platform, filename, &buf, &len);
1334 sysinfo->identifier = talloc_steal(sysinfo, buf);
1335 talloc_free(filename);
1337 sysinfo->bmc_mac = talloc_zero_size(sysinfo, HWADDR_SIZE);
1339 get_ipmi_bmc_mac(p, sysinfo->bmc_mac);
1342 get_ipmi_bmc_versions(p, sysinfo);
1344 if (platform->get_platform_versions)
1345 platform->get_platform_versions(sysinfo);
1350 static bool probe(struct platform *p, void *ctx)
1352 struct platform_powerpc *platform;
1353 struct stat statbuf;
1357 /* we need a device tree */
1358 rc = stat("/proc/device-tree", &statbuf);
1362 if (!S_ISDIR(statbuf.st_mode))
1365 platform = talloc_zero(ctx, struct platform_powerpc);
1366 list_init(&platform->params);
1368 p->platform_data = platform;
1370 bmc_present = stat("/proc/device-tree/bmc", &statbuf) == 0;
1372 if (ipmi_present() && bmc_present) {
1373 pb_debug("platform: using direct IPMI for IPMI paramters\n");
1374 platform->ipmi = ipmi_open(platform);
1375 platform->get_ipmi_bootdev = get_ipmi_bootdev_ipmi;
1376 platform->clear_ipmi_bootdev = clear_ipmi_bootdev_ipmi;
1377 platform->set_os_boot_sensor = set_ipmi_os_boot_sensor;
1378 } else if (!stat(sysparams_dir, &statbuf)) {
1379 pb_debug("platform: using sysparams for IPMI paramters\n");
1380 platform->get_ipmi_bootdev = get_ipmi_bootdev_sysparams;
1381 platform->clear_ipmi_bootdev = clear_ipmi_bootdev_sysparams;
1384 pb_log("platform: no IPMI parameter support\n");
1388 platform->get_platform_versions = hostboot_load_versions;
1394 static struct platform platform_powerpc = {
1396 .dhcp_arch_id = 0x000e,
1398 .load_config = load_config,
1399 .save_config = save_config,
1400 .pre_boot = pre_boot,
1401 .get_sysinfo = get_sysinfo,
1404 register_platform(platform_powerpc);