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 = 10000; /* 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[] = {
60 "petitboot,snapshots?",
62 "petitboot,http_proxy",
63 "petitboot,https_proxy",
67 #define to_platform_powerpc(p) \
68 (struct platform_powerpc *)(p->platform_data)
70 static bool param_is_known(const char *param, unsigned int len)
72 const char *known_param;
75 for (i = 0; known_params[i]; i++) {
76 known_param = known_params[i];
77 if (len == strlen(known_param) &&
78 !strncmp(param, known_param, len))
85 static int parse_nvram_params(struct platform_powerpc *platform,
88 char *pos, *name, *value;
89 unsigned int paramlen;
92 /* discard 2 header lines:
99 for (i = 0; i < len; i++) {
107 fprintf(stderr, "failure parsing nvram output\n");
111 for (pos = buf + i; pos < buf + len; pos += paramlen + 1) {
112 unsigned int namelen;
116 newline = strchr(pos, '\n');
122 paramlen = strlen(pos);
125 value = strchr(pos, '=');
129 namelen = value - name;
133 if (!param_is_known(name, namelen))
138 param = talloc(platform, struct param);
139 param->modified = false;
140 param->name = talloc_strndup(platform, name, namelen);
141 param->value = talloc_strdup(platform, value);
142 list_add(&platform->params, ¶m->list);
148 static int parse_nvram(struct platform_powerpc *platform)
150 struct process *process;
155 argv[1] = "--print-config";
156 argv[2] = "--partition";
160 process = process_create(platform);
161 process->path = "nvram";
162 process->argv = argv;
163 process->keep_stdout = true;
165 rc = process_run_sync(process);
167 if (rc || !process_exit_ok(process)) {
168 fprintf(stderr, "nvram process returned "
169 "non-zero exit status\n");
172 rc = parse_nvram_params(platform, process->stdout_buf,
173 process->stdout_len);
176 process_release(process);
180 static int write_nvram(struct platform_powerpc *platform)
182 struct process *process;
188 argv[1] = "--update-config";
190 argv[3] = "--partition";
194 process = process_create(platform);
195 process->path = "nvram";
196 process->argv = argv;
198 list_for_each_entry(&platform->params, param, list) {
201 if (!param->modified)
204 paramstr = talloc_asprintf(platform, "%s=%s",
205 param->name, param->value);
208 rc = process_run_sync(process);
210 talloc_free(paramstr);
212 if (rc || !process_exit_ok(process)) {
214 pb_log("nvram update process returned "
215 "non-zero exit status\n");
220 process_release(process);
224 static const char *get_param(struct platform_powerpc *platform,
229 list_for_each_entry(&platform->params, param, list)
230 if (!strcmp(param->name, name))
235 static void set_param(struct platform_powerpc *platform, const char *name,
240 list_for_each_entry(&platform->params, param, list) {
241 if (strcmp(param->name, name))
244 if (!strcmp(param->value, value))
247 talloc_free(param->value);
248 param->value = talloc_strdup(param, value);
249 param->modified = true;
254 param = talloc(platform, struct param);
255 param->modified = true;
256 param->name = talloc_strdup(platform, name);
257 param->value = talloc_strdup(platform, value);
258 list_add(&platform->params, ¶m->list);
261 static int parse_hwaddr(struct interface_config *ifconf, char *str)
265 if (strlen(str) != strlen("00:00:00:00:00:00"))
268 for (i = 0; i < HWADDR_SIZE; i++) {
272 byte[0] = str[i * 3 + 0];
273 byte[1] = str[i * 3 + 1];
276 x = strtoul(byte, &endp, 16);
277 if (endp != byte + 2)
280 ifconf->hwaddr[i] = x & 0xff;
286 static int parse_one_interface_config(struct config *config,
289 struct interface_config *ifconf;
292 ifconf = talloc_zero(config, struct interface_config);
294 if (!confstr || !strlen(confstr))
297 /* first token should be the mac address */
298 tok = strtok_r(confstr, ",", &saveptr);
302 if (parse_hwaddr(ifconf, tok))
305 /* second token is the method */
306 tok = strtok_r(NULL, ",", &saveptr);
307 if (!tok || !strlen(tok) || !strcmp(tok, "ignore")) {
308 ifconf->ignore = true;
310 } else if (!strcmp(tok, "dhcp")) {
311 ifconf->method = CONFIG_METHOD_DHCP;
313 } else if (!strcmp(tok, "static")) {
314 ifconf->method = CONFIG_METHOD_STATIC;
316 /* ip/mask, [optional] gateway, [optional] url */
317 tok = strtok_r(NULL, ",", &saveptr);
320 ifconf->static_config.address =
321 talloc_strdup(ifconf, tok);
323 tok = strtok_r(NULL, ",", &saveptr);
325 ifconf->static_config.gateway =
326 talloc_strdup(ifconf, tok);
329 tok = strtok_r(NULL, ",", &saveptr);
331 ifconf->static_config.url =
332 talloc_strdup(ifconf, tok);
336 pb_log("Unknown network configuration method %s\n", tok);
340 config->network.interfaces = talloc_realloc(config,
341 config->network.interfaces,
342 struct interface_config *,
343 ++config->network.n_interfaces);
345 config->network.interfaces[config->network.n_interfaces - 1] = ifconf;
353 static int parse_one_dns_config(struct config *config,
356 char *tok, *saveptr = NULL;
358 for (tok = strtok_r(confstr, ",", &saveptr); tok;
359 tok = strtok_r(NULL, ",", &saveptr)) {
361 char *server = talloc_strdup(config, tok);
363 config->network.dns_servers = talloc_realloc(config,
364 config->network.dns_servers, const char *,
365 ++config->network.n_dns_servers);
367 config->network.dns_servers[config->network.n_dns_servers - 1]
374 static void populate_network_config(struct platform_powerpc *platform,
375 struct config *config)
377 char *val, *saveptr = NULL;
381 cval = get_param(platform, "petitboot,network");
382 if (!cval || !strlen(cval))
385 val = talloc_strdup(config, cval);
390 tok = strtok_r(i == 0 ? val : NULL, " ", &saveptr);
394 if (!strncasecmp(tok, "dns,", strlen("dns,")))
395 parse_one_dns_config(config, tok + strlen("dns,"));
397 parse_one_interface_config(config, tok);
404 static int read_bootdev(void *ctx, char **pos, struct autoboot_option *opt)
406 char *delim = strchr(*pos, ' ');
407 int len, prefix = 0, rc = -1;
408 enum device_type type;
410 if (!strncmp(*pos, "uuid:", strlen("uuid:"))) {
411 prefix = strlen("uuid:");
412 opt->boot_type = BOOT_DEVICE_UUID;
413 } else if (!strncmp(*pos, "mac:", strlen("mac:"))) {
414 prefix = strlen("mac:");
415 opt->boot_type = BOOT_DEVICE_UUID;
417 type = find_device_type(*pos);
418 if (type != DEVICE_TYPE_UNKNOWN) {
420 opt->boot_type = BOOT_DEVICE_TYPE;
425 if (opt->boot_type == BOOT_DEVICE_UUID) {
427 len = (int)(delim - *pos) - prefix;
429 len = strlen(*pos) - prefix;
432 opt->uuid = talloc_strndup(ctx, *pos + prefix, len);
437 /* Always advance pointer to next option or end */
441 *pos += strlen(*pos);
446 static void populate_bootdev_config(struct platform_powerpc *platform,
447 struct config *config)
449 struct autoboot_option *opt, *new = NULL;
451 unsigned int n_new = 0;
454 /* Check for ordered bootdevs */
455 val = get_param(platform, "petitboot,bootdevs");
456 if (!val || !strlen(val)) {
459 pos = talloc_strdup(config, val);
460 end = strchr(pos, '\0');
463 while (pos && pos < end) {
464 opt = talloc(config, struct autoboot_option);
466 if (read_bootdev(config, &pos, opt)) {
467 pb_log("bootdev config is in an unknown format "
468 "(expected uuid:... or mac:...)\n");
473 new = talloc_realloc(config, new, struct autoboot_option,
482 /* If autoboot has been disabled, clear the default options */
483 if (!config->autoboot_enabled) {
484 talloc_free(config->autoboot_opts);
485 config->n_autoboot_opts = 0;
490 talloc_free(config->autoboot_opts);
491 config->autoboot_opts = new;
492 config->n_autoboot_opts = n_new;
495 static void populate_config(struct platform_powerpc *platform,
496 struct config *config)
500 unsigned long timeout;
502 /* if the "auto-boot?' property is present and "false", disable auto
504 val = get_param(platform, "auto-boot?");
505 config->autoboot_enabled = !val || strcmp(val, "false");
507 val = get_param(platform, "petitboot,timeout");
509 timeout = strtoul(val, &end, 10);
511 if (timeout >= INT_MAX)
513 config->autoboot_timeout_sec = (int)timeout;
517 val = get_param(platform, "petitboot,language");
518 config->lang = val ? talloc_strdup(config, val) : NULL;
520 populate_network_config(platform, config);
522 populate_bootdev_config(platform, config);
524 if (!config->debug) {
525 val = get_param(platform, "petitboot,debug?");
526 config->debug = val && !strcmp(val, "true");
529 val = get_param(platform, "petitboot,write?");
531 config->allow_writes = !strcmp(val, "true");
533 val = get_param(platform, "petitboot,snapshots?");
535 config->disable_snapshots = !strcmp(val, "false");
537 val = get_param(platform, "petitboot,console");
539 config->boot_console = talloc_strdup(config, val);
540 /* If a full path is already set we don't want to override it */
541 config->manual_console = config->boot_console &&
542 !strchr(config->boot_console, '[');
544 val = get_param(platform, "petitboot,http_proxy");
546 config->http_proxy = talloc_strdup(config, val);
547 val = get_param(platform, "petitboot,https_proxy");
549 config->https_proxy = talloc_strdup(config, val);
552 static char *iface_config_str(void *ctx, struct interface_config *config)
556 /* todo: HWADDR size is hardcoded as 6, but we may need to handle
557 * different hardware address formats */
558 str = talloc_asprintf(ctx, "%02x:%02x:%02x:%02x:%02x:%02x,",
559 config->hwaddr[0], config->hwaddr[1],
560 config->hwaddr[2], config->hwaddr[3],
561 config->hwaddr[4], config->hwaddr[5]);
563 if (config->ignore) {
564 str = talloc_asprintf_append(str, "ignore");
566 } else if (config->method == CONFIG_METHOD_DHCP) {
567 str = talloc_asprintf_append(str, "dhcp");
569 } else if (config->method == CONFIG_METHOD_STATIC) {
570 str = talloc_asprintf_append(str, "static,%s%s%s%s%s",
571 config->static_config.address,
572 config->static_config.gateway ? "," : "",
573 config->static_config.gateway ?: "",
574 config->static_config.url ? "," : "",
575 config->static_config.url ?: "");
580 static char *dns_config_str(void *ctx, const char **dns_servers, int n)
585 str = talloc_strdup(ctx, "dns,");
586 for (i = 0; i < n; i++) {
587 str = talloc_asprintf_append(str, "%s%s",
595 static void update_string_config(struct platform_powerpc *platform,
596 const char *name, const char *value)
600 cur = get_param(platform, name);
602 /* don't set an empty parameter if it doesn't already exist */
603 if (!cur && !strlen(value))
606 set_param(platform, name, value);
609 static void update_network_config(struct platform_powerpc *platform,
610 struct config *config)
616 * Don't store IPMI overrides to NVRAM. If this was a persistent
617 * override it was already stored in NVRAM by
618 * get_ipmi_network_override()
620 if (config->network.n_interfaces &&
621 config->network.interfaces[0]->override)
624 val = talloc_strdup(platform, "");
626 for (i = 0; i < config->network.n_interfaces; i++) {
627 char *iface_str = iface_config_str(platform,
628 config->network.interfaces[i]);
629 val = talloc_asprintf_append(val, "%s%s",
630 *val == '\0' ? "" : " ", iface_str);
631 talloc_free(iface_str);
634 if (config->network.n_dns_servers) {
635 char *dns_str = dns_config_str(platform,
636 config->network.dns_servers,
637 config->network.n_dns_servers);
638 val = talloc_asprintf_append(val, "%s%s",
639 *val == '\0' ? "" : " ", dns_str);
640 talloc_free(dns_str);
643 update_string_config(platform, "petitboot,network", val);
648 static void update_bootdev_config(struct platform_powerpc *platform,
649 struct config *config)
651 char *val = NULL, *boot_str = NULL, *tmp = NULL;
652 struct autoboot_option *opt;
653 const char delim = ' ';
656 if (!config->n_autoboot_opts)
659 for (i = 0; i < config->n_autoboot_opts; i++) {
660 opt = &config->autoboot_opts[i];
661 switch (opt->boot_type) {
662 case BOOT_DEVICE_TYPE:
663 boot_str = talloc_asprintf(config, "%s%c",
664 device_type_name(opt->type),
667 case BOOT_DEVICE_UUID:
668 boot_str = talloc_asprintf(config, "uuid:%s%c",
672 tmp = val = talloc_asprintf_append(val, "%s", boot_str);
675 update_string_config(platform, "petitboot,bootdevs", val);
678 talloc_free(boot_str);
681 static int update_config(struct platform_powerpc *platform,
682 struct config *config, struct config *defaults)
687 if (config->autoboot_enabled == defaults->autoboot_enabled)
690 val = config->autoboot_enabled ? "true" : "false";
691 update_string_config(platform, "auto-boot?", val);
693 if (config->autoboot_timeout_sec == defaults->autoboot_timeout_sec)
696 val = tmp = talloc_asprintf(platform, "%d",
697 config->autoboot_timeout_sec);
699 if (config->ipmi_bootdev == IPMI_BOOTDEV_INVALID &&
700 platform->clear_ipmi_bootdev) {
701 platform->clear_ipmi_bootdev(platform,
702 config->ipmi_bootdev_persistent);
703 config->ipmi_bootdev = IPMI_BOOTDEV_NONE;
704 config->ipmi_bootdev_persistent = false;
707 update_string_config(platform, "petitboot,timeout", val);
711 val = config->lang ?: "";
712 update_string_config(platform, "petitboot,language", val);
714 if (config->allow_writes == defaults->allow_writes)
717 val = config->allow_writes ? "true" : "false";
718 update_string_config(platform, "petitboot,write?", val);
720 if (!config->manual_console) {
721 val = config->boot_console ?: "";
722 update_string_config(platform, "petitboot,console", val);
725 val = config->http_proxy ?: "";
726 update_string_config(platform, "petitboot,http_proxy", val);
727 val = config->https_proxy ?: "";
728 update_string_config(platform, "petitboot,https_proxy", val);
730 update_network_config(platform, config);
732 update_bootdev_config(platform, config);
734 return write_nvram(platform);
737 static void set_ipmi_bootdev(struct config *config, enum ipmi_bootdev bootdev,
740 config->ipmi_bootdev = bootdev;
741 config->ipmi_bootdev_persistent = persistent;
743 if (bootdev == IPMI_BOOTDEV_SAFE)
744 config->safe_mode = true;
747 static int read_bootdev_sysparam(const char *name, uint8_t *val)
753 assert(strlen(sysparams_dir) + strlen(name) < sizeof(path));
754 snprintf(path, sizeof(path), "%s%s", sysparams_dir, name);
756 fd = open(path, O_RDONLY);
758 pb_debug("powerpc: can't access sysparam %s\n",
763 rc = read(fd, buf, sizeof(buf));
767 /* bootdev definitions should only be one byte in size */
769 pb_debug("powerpc: sysparam %s read returned %d\n",
774 pb_debug("powerpc: sysparam %s: 0x%02x\n", name, buf[0]);
776 if (!ipmi_bootdev_is_valid(buf[0]))
783 static int write_bootdev_sysparam(const char *name, uint8_t val)
788 assert(strlen(sysparams_dir) + strlen(name) < sizeof(path));
789 snprintf(path, sizeof(path), "%s%s", sysparams_dir, name);
791 fd = open(path, O_WRONLY);
793 pb_debug("powerpc: can't access sysparam %s for writing\n",
800 rc = write(fd, &val, sizeof(val));
801 if (rc == sizeof(val)) {
806 if (rc <= 0 && errno != EINTR) {
807 pb_log("powerpc: error updating sysparam %s: %s",
808 name, strerror(errno));
817 pb_debug("powerpc: set sysparam %s: 0x%02x\n", name, val);
822 static int clear_ipmi_bootdev_sysparams(
823 struct platform_powerpc *platform __attribute__((unused)),
827 /* invalidate default-boot-device setting */
828 write_bootdev_sysparam("default-boot-device", 0xff);
830 /* invalidate next-boot-device setting */
831 write_bootdev_sysparam("next-boot-device", 0xff);
836 static int get_ipmi_bootdev_sysparams(
837 struct platform_powerpc *platform __attribute__((unused)),
838 uint8_t *bootdev, bool *persistent)
840 uint8_t next_bootdev, default_bootdev;
841 bool next_valid, default_valid;
844 rc = read_bootdev_sysparam("next-boot-device", &next_bootdev);
845 next_valid = rc == 0;
847 rc = read_bootdev_sysparam("default-boot-device", &default_bootdev);
848 default_valid = rc == 0;
850 /* nothing valid? no need to change the config */
851 if (!next_valid && !default_valid)
854 *persistent = !next_valid;
855 *bootdev = next_valid ? next_bootdev : default_bootdev;
859 static int clear_ipmi_bootdev_ipmi(struct platform_powerpc *platform,
860 bool persistent __attribute__((unused)))
865 0x05, /* parameter selector: boot flags */
866 0x80, /* data 1: valid */
867 0x00, /* data 2: bootdev: no override */
868 0x00, /* data 3: system defaults */
869 0x00, /* data 4: no request for shared mode, mux defaults */
870 0x00, /* data 5: no instance request */
873 resp_len = sizeof(resp);
875 ipmi_transaction(platform->ipmi, IPMI_NETFN_CHASSIS,
876 IPMI_CMD_CHASSIS_SET_SYSTEM_BOOT_OPTIONS,
883 static int get_ipmi_bootdev_ipmi(struct platform_powerpc *platform,
884 uint8_t *bootdev, bool *persistent)
890 0x05, /* parameter selector: boot flags */
891 0x00, /* no set selector */
892 0x00, /* no block selector */
895 resp_len = sizeof(resp);
896 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_CHASSIS,
897 IPMI_CMD_CHASSIS_GET_SYSTEM_BOOT_OPTIONS,
902 pb_log("platform: error reading IPMI boot options\n");
906 if (resp_len != sizeof(resp)) {
907 pb_log("platform: unexpected length (%d) in "
908 "boot options response\n", resp_len);
912 pb_debug("IPMI get_bootdev response:\n");
913 for (int i = 0; i < resp_len; i++)
914 pb_debug("%x ", resp[i]);
918 pb_log("platform: non-zero completion code %d from IPMI req\n",
923 /* check for correct parameter version */
924 if ((resp[1] & 0xf) != 0x1) {
925 pb_log("platform: unexpected version (0x%x) in "
926 "boot options response\n", resp[0]);
930 /* check for valid paramters */
931 if (resp[2] & 0x80) {
932 pb_debug("platform: boot options are invalid/locked\n");
938 /* check for valid flags */
939 if (!(resp[3] & 0x80)) {
940 pb_debug("platform: boot flags are invalid, ignoring\n");
944 *persistent = resp[3] & 0x40;
945 *bootdev = (resp[4] >> 2) & 0x0f;
949 static int set_ipmi_os_boot_sensor(struct platform_powerpc *platform)
955 0x00, /* sensor number: os boot */
956 0xA9, /* operation: set everything */
957 0x00, /* sensor reading: none */
958 0x40, /* assertion mask lsb: set state 6 */
959 0x00, /* assertion mask msb: none */
960 0x00, /* deassertion mask lsb: none */
961 0x00, /* deassertion mask msb: none */
962 0x00, /* event data 1: none */
963 0x00, /* event data 2: none */
964 0x00, /* event data 3: none */
967 sensor_number = get_ipmi_sensor(platform, IPMI_SENSOR_ID_OS_BOOT);
968 if (sensor_number < 0) {
969 pb_log("Couldn't find OS boot sensor in device tree\n");
973 req[0] = sensor_number;
975 resp_len = sizeof(resp);
977 ipmi_transaction(platform->ipmi, IPMI_NETFN_SE,
981 ipmi_timeout); return 0;
986 static void get_ipmi_bmc_mac(struct platform *p, uint8_t *buf)
988 struct platform_powerpc *platform = p->platform_data;
989 uint16_t resp_len = 8;
991 uint8_t req[] = { 0x1, 0x5, 0x0, 0x0 };
994 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_TRANSPORT,
995 IPMI_CMD_TRANSPORT_GET_LAN_PARAMS,
1000 pb_debug("BMC MAC resp [%d][%d]:\n", rc, resp_len);
1002 if (rc == 0 && resp_len > 0) {
1003 for (i = 2; i < resp_len; i++) {
1004 pb_debug(" %x", resp[i]);
1005 buf[i - 2] = resp[i];
1013 * Retrieve info from the "Get Device ID" IPMI commands.
1014 * See Chapter 20.1 in the IPMIv2 specification.
1016 static void get_ipmi_bmc_versions(struct platform *p, struct system_info *info)
1018 struct platform_powerpc *platform = p->platform_data;
1019 uint16_t resp_len = 16;
1020 uint8_t resp[16], bcd;
1023 /* Retrieve info from current side */
1024 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_APP,
1025 IPMI_CMD_APP_GET_DEVICE_ID,
1030 pb_debug("BMC version resp [%d][%d]:\n", rc, resp_len);
1032 for (i = 0; i < resp_len; i++) {
1033 pb_debug(" %x", resp[i]);
1038 if (rc == 0 && (resp_len == 12 || resp_len == 16)) {
1039 info->bmc_current = talloc_array(info, char *, 4);
1040 info->n_bmc_current = 4;
1042 info->bmc_current[0] = talloc_asprintf(info, "Device ID: 0x%x",
1044 info->bmc_current[1] = talloc_asprintf(info, "Device Rev: 0x%x",
1046 bcd = resp[4] & 0x0f;
1047 bcd += 10 * (resp[4] >> 4);
1048 /* rev1.rev2.aux_revision */
1049 info->bmc_current[2] = talloc_asprintf(info,
1050 "Firmware version: %u.%02u",
1052 if (resp_len == 16) {
1053 info->bmc_current[2] = talloc_asprintf_append(
1054 info->bmc_current[2],
1055 ".%02x%02x%02x%02x",
1056 resp[12], resp[13], resp[14], resp[15]);
1058 bcd = resp[5] & 0x0f;
1059 bcd += 10 * (resp[5] >> 4);
1060 info->bmc_current[3] = talloc_asprintf(info, "IPMI version: %u",
1063 pb_log("Failed to retrieve Device ID from IPMI\n");
1065 /* Retrieve info from golden side */
1066 memset(resp, 0, sizeof(resp));
1068 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_AMI,
1069 IPMI_CMD_APP_GET_DEVICE_ID_GOLDEN,
1074 pb_debug("BMC golden resp [%d][%d]:\n", rc, resp_len);
1076 for (i = 0; i < resp_len; i++) {
1077 pb_debug(" %x", resp[i]);
1082 if (rc == 0 && (resp_len == 12 || resp_len == 16)) {
1083 info->bmc_golden = talloc_array(info, char *, 4);
1084 info->n_bmc_golden = 4;
1086 info->bmc_golden[0] = talloc_asprintf(info, "Device ID: 0x%x",
1088 info->bmc_golden[1] = talloc_asprintf(info, "Device Rev: 0x%x",
1090 bcd = resp[4] & 0x0f;
1091 bcd += 10 * (resp[4] >> 4);
1092 /* rev1.rev2.aux_revision */
1093 info->bmc_golden[2] = talloc_asprintf(info,
1094 "Firmware version: %u.%02u",
1096 if (resp_len == 16) {
1097 info->bmc_golden[2] = talloc_asprintf_append(
1098 info->bmc_golden[2],
1099 ".%02x%02x%02x%02x",
1100 resp[12], resp[13], resp[14], resp[15]);
1102 bcd = resp[5] & 0x0f;
1103 bcd += 10 * (resp[5] >> 4);
1104 info->bmc_golden[3] = talloc_asprintf(info, "IPMI version: %u",
1107 pb_log("Failed to retrieve Golden Device ID from IPMI\n");
1110 static void get_ipmi_network_override(struct platform_powerpc *platform,
1111 struct config *config)
1113 uint16_t min_len = 12, resp_len = 53, version;
1114 const uint32_t magic_value = 0x21706221;
1115 uint8_t resp[resp_len];
1120 0x61, /* parameter selector: OEM section (network) */
1121 0x00, /* no set selector */
1122 0x00, /* no block selector */
1125 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_CHASSIS,
1126 IPMI_CMD_CHASSIS_GET_SYSTEM_BOOT_OPTIONS,
1131 pb_debug("IPMI net override resp [%d][%d]:\n", rc, resp_len);
1133 for (i = 0; i < resp_len; i++) {
1134 pb_debug(" %02x", resp[i]);
1135 if (i && (i + 1) % 16 == 0 && i != resp_len - 1)
1137 else if (i && (i + 1) % 8 == 0)
1144 pb_debug("IPMI network config option unavailable\n");
1148 if (resp_len < min_len) {
1149 pb_debug("IPMI net response too small\n");
1154 pb_log("platform: non-zero completion code %d from IPMI network req\n",
1159 /* Check for correct parameter version */
1160 if ((resp[1] & 0xf) != 0x1) {
1161 pb_log("platform: unexpected version (0x%x) in network override response\n",
1166 /* Check that the parameters are valid */
1167 if (resp[2] & 0x80) {
1168 pb_debug("platform: network override is invalid/locked\n");
1172 /* Check for valid parameters in the boot flags section */
1173 if (!(resp[3] & 0x80)) {
1174 pb_debug("platform: network override valid flag not set\n");
1177 /* Read the persistent flag; if it is set we need to save this config */
1178 persistent = resp[3] & 0x40;
1180 pb_debug("platform: network override is persistent\n");
1182 /* Check 4-byte cookie value */
1184 memcpy(&cookie, &resp[i], sizeof(cookie));
1185 cookie = __be32_to_cpu(cookie);
1186 if (cookie != magic_value) {
1187 pb_log("%s: Incorrect cookie %x\n", __func__, cookie);
1190 i += sizeof(cookie);
1192 /* Check 2-byte version number */
1193 memcpy(&version, &resp[i], sizeof(version));
1194 version = __be16_to_cpu(version);
1195 i += sizeof(version);
1197 pb_debug("Unexpected version: %u\n", version);
1201 /* Interpret the rest of the interface config */
1202 rc = parse_ipmi_interface_override(config, &resp[i], resp_len - i);
1204 if (!rc && persistent) {
1205 /* Write this new config to NVRAM */
1206 update_network_config(platform, config);
1207 rc = write_nvram(platform);
1209 pb_log("platform: Failed to save persistent interface override\n");
1213 static void get_active_consoles(struct config *config)
1216 char *fsp_prop = NULL;
1218 config->n_consoles = 2;
1219 config->consoles = talloc_array(config, char *, config->n_consoles);
1220 if (!config->consoles)
1223 config->consoles[0] = talloc_asprintf(config->consoles,
1224 "/dev/hvc0 [IPMI / Serial]");
1225 config->consoles[1] = talloc_asprintf(config->consoles,
1228 fsp_prop = talloc_asprintf(config, "%sfsps", devtree_dir);
1229 if (stat(fsp_prop, &sbuf) == 0) {
1230 /* FSP based machines also have a separate serial console */
1231 config->consoles = talloc_realloc(config, config->consoles,
1232 char *, config->n_consoles + 1);
1233 if (!config->consoles)
1235 config->consoles[config->n_consoles++] = talloc_asprintf(
1237 "/dev/hvc1 [Serial]");
1242 config->n_consoles = 0;
1243 pb_log("Failed to allocate memory for consoles\n");
1246 static int load_config(struct platform *p, struct config *config)
1248 struct platform_powerpc *platform = to_platform_powerpc(p);
1251 rc = parse_nvram(platform);
1253 pb_log("%s: Failed to parse nvram\n", __func__);
1255 populate_config(platform, config);
1257 if (platform->get_ipmi_bootdev) {
1258 bool bootdev_persistent;
1259 uint8_t bootdev = IPMI_BOOTDEV_INVALID;
1260 rc = platform->get_ipmi_bootdev(platform, &bootdev,
1261 &bootdev_persistent);
1262 if (!rc && ipmi_bootdev_is_valid(bootdev)) {
1263 set_ipmi_bootdev(config, bootdev, bootdev_persistent);
1268 get_ipmi_network_override(platform, config);
1270 get_active_consoles(config);
1275 static int save_config(struct platform *p, struct config *config)
1277 struct platform_powerpc *platform = to_platform_powerpc(p);
1278 struct config *defaults;
1281 defaults = talloc_zero(platform, struct config);
1282 config_set_defaults(defaults);
1284 rc = update_config(platform, config, defaults);
1286 talloc_free(defaults);
1290 static void pre_boot(struct platform *p, const struct config *config)
1292 struct platform_powerpc *platform = to_platform_powerpc(p);
1294 if (!config->ipmi_bootdev_persistent && platform->clear_ipmi_bootdev)
1295 platform->clear_ipmi_bootdev(platform, false);
1297 if (platform->set_os_boot_sensor)
1298 platform->set_os_boot_sensor(platform);
1301 static int get_sysinfo(struct platform *p, struct system_info *sysinfo)
1303 struct platform_powerpc *platform = p->platform_data;
1304 char *buf, *filename;
1307 filename = talloc_asprintf(platform, "%smodel", devtree_dir);
1308 rc = read_file(platform, filename, &buf, &len);
1310 sysinfo->type = talloc_steal(sysinfo, buf);
1311 talloc_free(filename);
1313 filename = talloc_asprintf(platform, "%ssystem-id", devtree_dir);
1314 rc = read_file(platform, filename, &buf, &len);
1316 sysinfo->identifier = talloc_steal(sysinfo, buf);
1317 talloc_free(filename);
1319 sysinfo->bmc_mac = talloc_zero_size(sysinfo, HWADDR_SIZE);
1321 get_ipmi_bmc_mac(p, sysinfo->bmc_mac);
1324 get_ipmi_bmc_versions(p, sysinfo);
1326 if (platform->get_platform_versions)
1327 platform->get_platform_versions(sysinfo);
1332 static bool probe(struct platform *p, void *ctx)
1334 struct platform_powerpc *platform;
1335 struct stat statbuf;
1339 /* we need a device tree */
1340 rc = stat("/proc/device-tree", &statbuf);
1344 if (!S_ISDIR(statbuf.st_mode))
1347 platform = talloc_zero(ctx, struct platform_powerpc);
1348 list_init(&platform->params);
1350 p->platform_data = platform;
1352 bmc_present = stat("/proc/device-tree/bmc", &statbuf) == 0;
1354 if (ipmi_present() && bmc_present) {
1355 pb_debug("platform: using direct IPMI for IPMI paramters\n");
1356 platform->ipmi = ipmi_open(platform);
1357 platform->get_ipmi_bootdev = get_ipmi_bootdev_ipmi;
1358 platform->clear_ipmi_bootdev = clear_ipmi_bootdev_ipmi;
1359 platform->set_os_boot_sensor = set_ipmi_os_boot_sensor;
1360 } else if (!stat(sysparams_dir, &statbuf)) {
1361 pb_debug("platform: using sysparams for IPMI paramters\n");
1362 platform->get_ipmi_bootdev = get_ipmi_bootdev_sysparams;
1363 platform->clear_ipmi_bootdev = clear_ipmi_bootdev_sysparams;
1366 pb_log("platform: no IPMI parameter support\n");
1370 platform->get_platform_versions = hostboot_load_versions;
1376 static struct platform platform_powerpc = {
1378 .dhcp_arch_id = 0x000e,
1380 .load_config = load_config,
1381 .save_config = save_config,
1382 .pre_boot = pre_boot,
1383 .get_sysinfo = get_sysinfo,
1386 register_platform(platform_powerpc);