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;
416 } else if (!strncmp(*pos, "mac:", strlen("mac:"))) {
417 prefix = strlen("mac:");
418 opt->boot_type = BOOT_DEVICE_UUID;
421 type = find_device_type(*pos);
422 if (type != DEVICE_TYPE_UNKNOWN) {
424 opt->boot_type = BOOT_DEVICE_TYPE;
429 if (opt->boot_type == BOOT_DEVICE_UUID) {
431 len = (int)(delim - *pos) - prefix;
435 opt->uuid = talloc_strndup(ctx, *pos + prefix, len);
438 /* Always advance pointer to next option or end */
442 *pos += strlen(*pos);
447 static void populate_bootdev_config(struct platform_powerpc *platform,
448 struct config *config)
450 struct autoboot_option *opt, *new = NULL;
451 char *pos, *end, *old_dev = NULL;
452 unsigned int n_new = 0;
456 /* Check for old-style bootdev */
457 val = get_param(platform, "petitboot,bootdev");
458 if (val && strlen(val)) {
459 pos = talloc_strdup(config, val);
460 if (!strncmp(val, "uuid:", strlen("uuid:")))
461 old_dev = talloc_strdup(config,
462 val + strlen("uuid:"));
463 else if (!strncmp(val, "mac:", strlen("mac:")))
464 old_dev = talloc_strdup(config,
465 val + strlen("mac:"));
468 /* Check for ordered bootdevs */
469 val = get_param(platform, "petitboot,bootdevs");
470 if (!val || !strlen(val)) {
473 pos = talloc_strdup(config, val);
474 end = strchr(pos, '\0');
477 while (pos && pos < end) {
478 opt = talloc(config, struct autoboot_option);
480 if (read_bootdev(config, &pos, opt)) {
481 pb_log("bootdev config is in an unknown format "
482 "(expected uuid:... or mac:...)\n");
487 new = talloc_realloc(config, new, struct autoboot_option,
495 if (!n_new && !old_dev) {
496 /* If autoboot has been disabled, clear the default options */
497 if (!config->autoboot_enabled) {
498 talloc_free(config->autoboot_opts);
499 config->n_autoboot_opts = 0;
504 conflict = old_dev && (!n_new ||
505 new[0].boot_type == BOOT_DEVICE_TYPE ||
506 /* Canonical UUIDs are 36 characters long */
507 strncmp(new[0].uuid, old_dev, 36));
510 talloc_free(config->autoboot_opts);
511 config->autoboot_opts = new;
512 config->n_autoboot_opts = n_new;
517 * Difference detected, defer to old format in case it has been updated
520 pb_debug("Old autoboot bootdev detected\n");
521 talloc_free(config->autoboot_opts);
522 config->autoboot_opts = talloc(config, struct autoboot_option);
523 config->autoboot_opts[0].boot_type = BOOT_DEVICE_UUID;
524 config->autoboot_opts[0].uuid = talloc_strdup(config, old_dev);
525 config->n_autoboot_opts = 1;
528 static void populate_config(struct platform_powerpc *platform,
529 struct config *config)
533 unsigned long timeout;
535 /* if the "auto-boot?' property is present and "false", disable auto
537 val = get_param(platform, "auto-boot?");
538 config->autoboot_enabled = !val || strcmp(val, "false");
540 val = get_param(platform, "petitboot,timeout");
542 timeout = strtoul(val, &end, 10);
544 if (timeout >= INT_MAX)
546 config->autoboot_timeout_sec = (int)timeout;
550 val = get_param(platform, "petitboot,language");
551 config->lang = val ? talloc_strdup(config, val) : NULL;
553 populate_network_config(platform, config);
555 populate_bootdev_config(platform, config);
557 if (!config->debug) {
558 val = get_param(platform, "petitboot,debug?");
559 config->debug = val && !strcmp(val, "true");
562 val = get_param(platform, "petitboot,write?");
564 config->allow_writes = !strcmp(val, "true");
566 val = get_param(platform, "petitboot,snapshots?");
568 config->disable_snapshots = !strcmp(val, "false");
570 val = get_param(platform, "petitboot,console");
572 config->boot_console = talloc_strdup(config, val);
573 /* If a full path is already set we don't want to override it */
574 config->manual_console = config->boot_console &&
575 !strchr(config->boot_console, '[');
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)
642 * Don't store IPMI overrides to NVRAM. If this was a persistent
643 * override it was already stored in NVRAM by
644 * get_ipmi_network_override()
646 if (config->network.n_interfaces &&
647 config->network.interfaces[0]->override)
650 val = talloc_strdup(platform, "");
652 for (i = 0; i < config->network.n_interfaces; i++) {
653 char *iface_str = iface_config_str(platform,
654 config->network.interfaces[i]);
655 val = talloc_asprintf_append(val, "%s%s",
656 *val == '\0' ? "" : " ", iface_str);
657 talloc_free(iface_str);
660 if (config->network.n_dns_servers) {
661 char *dns_str = dns_config_str(platform,
662 config->network.dns_servers,
663 config->network.n_dns_servers);
664 val = talloc_asprintf_append(val, "%s%s",
665 *val == '\0' ? "" : " ", dns_str);
666 talloc_free(dns_str);
669 update_string_config(platform, "petitboot,network", val);
674 static void update_bootdev_config(struct platform_powerpc *platform,
675 struct config *config)
677 char *val = NULL, *boot_str = NULL, *tmp = NULL, *first = NULL;
678 struct autoboot_option *opt;
679 const char delim = ' ';
682 if (!config->n_autoboot_opts)
684 else if (config->autoboot_opts[0].boot_type == BOOT_DEVICE_UUID)
685 first = talloc_asprintf(config, "uuid:%s",
686 config->autoboot_opts[0].uuid);
690 for (i = 0; i < config->n_autoboot_opts; i++) {
691 opt = &config->autoboot_opts[i];
692 switch (opt->boot_type) {
693 case BOOT_DEVICE_TYPE:
694 boot_str = talloc_asprintf(config, "%s%c",
695 device_type_name(opt->type),
698 case BOOT_DEVICE_UUID:
699 boot_str = talloc_asprintf(config, "uuid:%s%c",
703 tmp = val = talloc_asprintf_append(val, "%s", boot_str);
706 update_string_config(platform, "petitboot,bootdevs", val);
707 update_string_config(platform, "petitboot,bootdev", first);
710 talloc_free(boot_str);
713 static int update_config(struct platform_powerpc *platform,
714 struct config *config, struct config *defaults)
719 if (config->autoboot_enabled == defaults->autoboot_enabled)
722 val = config->autoboot_enabled ? "true" : "false";
723 update_string_config(platform, "auto-boot?", val);
725 if (config->autoboot_timeout_sec == defaults->autoboot_timeout_sec)
728 val = tmp = talloc_asprintf(platform, "%d",
729 config->autoboot_timeout_sec);
731 if (config->ipmi_bootdev == IPMI_BOOTDEV_INVALID &&
732 platform->clear_ipmi_bootdev) {
733 platform->clear_ipmi_bootdev(platform,
734 config->ipmi_bootdev_persistent);
735 config->ipmi_bootdev = IPMI_BOOTDEV_NONE;
736 config->ipmi_bootdev_persistent = false;
739 update_string_config(platform, "petitboot,timeout", val);
743 val = config->lang ?: "";
744 update_string_config(platform, "petitboot,language", val);
746 if (config->allow_writes == defaults->allow_writes)
749 val = config->allow_writes ? "true" : "false";
750 update_string_config(platform, "petitboot,write?", val);
752 if (!config->manual_console) {
753 val = config->boot_console ?: "";
754 update_string_config(platform, "petitboot,console", val);
757 update_network_config(platform, config);
759 update_bootdev_config(platform, config);
761 return write_nvram(platform);
764 static void set_ipmi_bootdev(struct config *config, enum ipmi_bootdev bootdev,
767 config->ipmi_bootdev = bootdev;
768 config->ipmi_bootdev_persistent = persistent;
771 case IPMI_BOOTDEV_NONE:
772 case IPMI_BOOTDEV_DISK:
773 case IPMI_BOOTDEV_NETWORK:
774 case IPMI_BOOTDEV_CDROM:
777 case IPMI_BOOTDEV_SETUP:
778 config->autoboot_enabled = false;
780 case IPMI_BOOTDEV_SAFE:
781 config->autoboot_enabled = false;
782 config->safe_mode = true;
787 static int read_bootdev_sysparam(const char *name, uint8_t *val)
793 assert(strlen(sysparams_dir) + strlen(name) < sizeof(path));
794 snprintf(path, sizeof(path), "%s%s", sysparams_dir, name);
796 fd = open(path, O_RDONLY);
798 pb_debug("powerpc: can't access sysparam %s\n",
803 rc = read(fd, buf, sizeof(buf));
807 /* bootdev definitions should only be one byte in size */
809 pb_debug("powerpc: sysparam %s read returned %d\n",
814 pb_debug("powerpc: sysparam %s: 0x%02x\n", name, buf[0]);
816 if (!ipmi_bootdev_is_valid(buf[0]))
823 static int write_bootdev_sysparam(const char *name, uint8_t val)
828 assert(strlen(sysparams_dir) + strlen(name) < sizeof(path));
829 snprintf(path, sizeof(path), "%s%s", sysparams_dir, name);
831 fd = open(path, O_WRONLY);
833 pb_debug("powerpc: can't access sysparam %s for writing\n",
840 rc = write(fd, &val, sizeof(val));
841 if (rc == sizeof(val)) {
846 if (rc <= 0 && errno != EINTR) {
847 pb_log("powerpc: error updating sysparam %s: %s",
848 name, strerror(errno));
857 pb_debug("powerpc: set sysparam %s: 0x%02x\n", name, val);
862 static int clear_ipmi_bootdev_sysparams(
863 struct platform_powerpc *platform __attribute__((unused)),
867 /* invalidate default-boot-device setting */
868 write_bootdev_sysparam("default-boot-device", 0xff);
870 /* invalidate next-boot-device setting */
871 write_bootdev_sysparam("next-boot-device", 0xff);
876 static int get_ipmi_bootdev_sysparams(
877 struct platform_powerpc *platform __attribute__((unused)),
878 uint8_t *bootdev, bool *persistent)
880 uint8_t next_bootdev, default_bootdev;
881 bool next_valid, default_valid;
884 rc = read_bootdev_sysparam("next-boot-device", &next_bootdev);
885 next_valid = rc == 0;
887 rc = read_bootdev_sysparam("default-boot-device", &default_bootdev);
888 default_valid = rc == 0;
890 /* nothing valid? no need to change the config */
891 if (!next_valid && !default_valid)
894 *persistent = !next_valid;
895 *bootdev = next_valid ? next_bootdev : default_bootdev;
899 static int clear_ipmi_bootdev_ipmi(struct platform_powerpc *platform,
900 bool persistent __attribute__((unused)))
905 0x05, /* parameter selector: boot flags */
906 0x80, /* data 1: valid */
907 0x00, /* data 2: bootdev: no override */
908 0x00, /* data 3: system defaults */
909 0x00, /* data 4: no request for shared mode, mux defaults */
910 0x00, /* data 5: no instance request */
913 resp_len = sizeof(resp);
915 ipmi_transaction(platform->ipmi, IPMI_NETFN_CHASSIS,
916 IPMI_CMD_CHASSIS_SET_SYSTEM_BOOT_OPTIONS,
923 static int get_ipmi_bootdev_ipmi(struct platform_powerpc *platform,
924 uint8_t *bootdev, bool *persistent)
930 0x05, /* parameter selector: boot flags */
931 0x00, /* no set selector */
932 0x00, /* no block selector */
935 resp_len = sizeof(resp);
936 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_CHASSIS,
937 IPMI_CMD_CHASSIS_GET_SYSTEM_BOOT_OPTIONS,
942 pb_log("platform: error reading IPMI boot options\n");
946 if (resp_len != sizeof(resp)) {
947 pb_log("platform: unexpected length (%d) in "
948 "boot options response\n", resp_len);
952 pb_debug("IPMI get_bootdev response:\n");
953 for (int i = 0; i < resp_len; i++)
954 pb_debug("%x ", resp[i]);
958 pb_log("platform: non-zero completion code %d from IPMI req\n",
963 /* check for correct parameter version */
964 if ((resp[1] & 0xf) != 0x1) {
965 pb_log("platform: unexpected version (0x%x) in "
966 "boot options response\n", resp[0]);
970 /* check for valid paramters */
971 if (resp[2] & 0x80) {
972 pb_debug("platform: boot options are invalid/locked\n");
978 /* check for valid flags */
979 if (!(resp[3] & 0x80)) {
980 pb_debug("platform: boot flags are invalid, ignoring\n");
984 *persistent = resp[3] & 0x40;
985 *bootdev = (resp[4] >> 2) & 0x0f;
989 static int set_ipmi_os_boot_sensor(struct platform_powerpc *platform)
995 0x00, /* sensor number: os boot */
996 0xA9, /* operation: set everything */
997 0x00, /* sensor reading: none */
998 0x40, /* assertion mask lsb: set state 6 */
999 0x00, /* assertion mask msb: none */
1000 0x00, /* deassertion mask lsb: none */
1001 0x00, /* deassertion mask msb: none */
1002 0x00, /* event data 1: none */
1003 0x00, /* event data 2: none */
1004 0x00, /* event data 3: none */
1007 sensor_number = get_ipmi_sensor(platform, IPMI_SENSOR_ID_OS_BOOT);
1008 if (sensor_number < 0) {
1009 pb_log("Couldn't find OS boot sensor in device tree\n");
1013 req[0] = sensor_number;
1015 resp_len = sizeof(resp);
1017 ipmi_transaction(platform->ipmi, IPMI_NETFN_SE,
1018 IPMI_CMD_SENSOR_SET,
1021 ipmi_timeout); return 0;
1026 static void get_ipmi_bmc_mac(struct platform *p, uint8_t *buf)
1028 struct platform_powerpc *platform = p->platform_data;
1029 uint16_t resp_len = 8;
1031 uint8_t req[] = { 0x1, 0x5, 0x0, 0x0 };
1034 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_TRANSPORT,
1035 IPMI_CMD_TRANSPORT_GET_LAN_PARAMS,
1040 pb_debug("BMC MAC resp [%d][%d]:\n", rc, resp_len);
1042 if (rc == 0 && resp_len > 0) {
1043 for (i = 2; i < resp_len; i++) {
1044 pb_debug(" %x", resp[i]);
1045 buf[i - 2] = resp[i];
1053 * Retrieve info from the "Get Device ID" IPMI commands.
1054 * See Chapter 20.1 in the IPMIv2 specification.
1056 static void get_ipmi_bmc_versions(struct platform *p, struct system_info *info)
1058 struct platform_powerpc *platform = p->platform_data;
1059 uint16_t resp_len = 16;
1060 uint8_t resp[16], bcd;
1061 uint32_t aux_version;
1064 /* Retrieve info from current side */
1065 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_APP,
1066 IPMI_CMD_APP_GET_DEVICE_ID,
1071 pb_debug("BMC version resp [%d][%d]:\n", rc, resp_len);
1073 for (i = 0; i < resp_len; i++) {
1074 pb_debug(" %x", resp[i]);
1079 if (rc == 0 && resp_len == 16) {
1080 info->bmc_current = talloc_array(info, char *, 4);
1081 info->n_bmc_current = 4;
1083 info->bmc_current[0] = talloc_asprintf(info, "Device ID: 0x%x",
1085 info->bmc_current[1] = talloc_asprintf(info, "Device Rev: 0x%x",
1087 bcd = resp[4] & 0x0f;
1088 bcd += 10 * (resp[4] >> 4);
1089 memcpy(&aux_version, &resp[12], sizeof(aux_version));
1090 info->bmc_current[2] = talloc_asprintf(info,
1091 "Firmware version: %u.%02u.%05u",
1092 resp[3], bcd, aux_version);
1093 bcd = resp[5] & 0x0f;
1094 bcd += 10 * (resp[5] >> 4);
1095 info->bmc_current[3] = talloc_asprintf(info, "IPMI version: %u",
1098 pb_log("Failed to retrieve Device ID from IPMI\n");
1100 /* Retrieve info from golden side */
1101 memset(resp, 0, sizeof(resp));
1103 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_AMI,
1104 IPMI_CMD_APP_GET_DEVICE_ID_GOLDEN,
1109 pb_debug("BMC golden resp [%d][%d]:\n", rc, resp_len);
1111 for (i = 0; i < resp_len; i++) {
1112 pb_debug(" %x", resp[i]);
1117 if (rc == 0 && resp_len == 16) {
1118 info->bmc_golden = talloc_array(info, char *, 4);
1119 info->n_bmc_golden = 4;
1121 info->bmc_golden[0] = talloc_asprintf(info, "Device ID: 0x%x",
1123 info->bmc_golden[1] = talloc_asprintf(info, "Device Rev: 0x%x",
1125 bcd = resp[4] & 0x0f;
1126 bcd += 10 * (resp[4] >> 4);
1127 memcpy(&aux_version, &resp[12], sizeof(aux_version));
1128 info->bmc_golden[2] = talloc_asprintf(info,
1129 "Firmware version: %u.%02u.%u",
1130 resp[3], bcd, aux_version);
1131 bcd = resp[5] & 0x0f;
1132 bcd += 10 * (resp[5] >> 4);
1133 info->bmc_golden[3] = talloc_asprintf(info, "IPMI version: %u",
1136 pb_log("Failed to retrieve Golden Device ID from IPMI\n");
1139 static void get_ipmi_network_override(struct platform_powerpc *platform,
1140 struct config *config)
1142 uint16_t min_len = 12, resp_len = 53, version;
1143 const uint32_t magic_value = 0x21706221;
1144 uint8_t resp[resp_len];
1149 0x61, /* parameter selector: OEM section (network) */
1150 0x00, /* no set selector */
1151 0x00, /* no block selector */
1154 rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_CHASSIS,
1155 IPMI_CMD_CHASSIS_GET_SYSTEM_BOOT_OPTIONS,
1160 pb_debug("IPMI net override resp [%d][%d]:\n", rc, resp_len);
1162 for (i = 0; i < resp_len; i++) {
1163 pb_debug(" %02x", resp[i]);
1164 if (i && (i + 1) % 16 == 0 && i != resp_len - 1)
1166 else if (i && (i + 1) % 8 == 0)
1173 pb_debug("IPMI network config option unavailable\n");
1177 if (resp_len < min_len) {
1178 pb_debug("IPMI net response too small\n");
1183 pb_log("platform: non-zero completion code %d from IPMI network req\n",
1188 /* Check for correct parameter version */
1189 if ((resp[1] & 0xf) != 0x1) {
1190 pb_log("platform: unexpected version (0x%x) in network override response\n",
1195 /* Check that the parameters are valid */
1196 if (resp[2] & 0x80) {
1197 pb_debug("platform: network override is invalid/locked\n");
1201 /* Check for valid parameters in the boot flags section */
1202 if (!(resp[3] & 0x80)) {
1203 pb_debug("platform: network override valid flag not set\n");
1206 /* Read the persistent flag; if it is set we need to save this config */
1207 persistent = resp[3] & 0x40;
1209 pb_debug("platform: network override is persistent\n");
1211 /* Check 4-byte cookie value */
1213 memcpy(&cookie, &resp[i], sizeof(cookie));
1214 cookie = __be32_to_cpu(cookie);
1215 if (cookie != magic_value) {
1216 pb_log("%s: Incorrect cookie %x\n", __func__, cookie);
1219 i += sizeof(cookie);
1221 /* Check 2-byte version number */
1222 memcpy(&version, &resp[i], sizeof(version));
1223 version = __be16_to_cpu(version);
1224 i += sizeof(version);
1226 pb_debug("Unexpected version: %u\n", version);
1230 /* Interpret the rest of the interface config */
1231 rc = parse_ipmi_interface_override(config, &resp[i], resp_len - i);
1233 if (!rc && persistent) {
1234 /* Write this new config to NVRAM */
1235 update_network_config(platform, config);
1236 rc = write_nvram(platform);
1238 pb_log("platform: Failed to save persistent interface override\n");
1242 static void get_active_consoles(struct config *config)
1245 char *fsp_prop = NULL;
1247 config->n_consoles = 2;
1248 config->consoles = talloc_array(config, char *, config->n_consoles);
1249 if (!config->consoles)
1252 config->consoles[0] = talloc_asprintf(config->consoles,
1253 "/dev/hvc0 [IPMI / Serial]");
1254 config->consoles[1] = talloc_asprintf(config->consoles,
1257 fsp_prop = talloc_asprintf(config, "%sfsps", devtree_dir);
1258 if (stat(fsp_prop, &sbuf) == 0) {
1259 /* FSP based machines also have a separate serial console */
1260 config->consoles = talloc_realloc(config, config->consoles,
1261 char *, config->n_consoles + 1);
1262 if (!config->consoles)
1264 config->consoles[config->n_consoles++] = talloc_asprintf(
1266 "/dev/hvc1 [Serial]");
1271 config->n_consoles = 0;
1272 pb_log("Failed to allocate memory for consoles\n");
1275 static int load_config(struct platform *p, struct config *config)
1277 struct platform_powerpc *platform = to_platform_powerpc(p);
1280 rc = parse_nvram(platform);
1284 populate_config(platform, config);
1286 if (platform->get_ipmi_bootdev) {
1287 bool bootdev_persistent;
1288 uint8_t bootdev = IPMI_BOOTDEV_INVALID;
1289 rc = platform->get_ipmi_bootdev(platform, &bootdev,
1290 &bootdev_persistent);
1291 if (!rc && ipmi_bootdev_is_valid(bootdev)) {
1292 set_ipmi_bootdev(config, bootdev, bootdev_persistent);
1297 get_ipmi_network_override(platform, config);
1299 get_active_consoles(config);
1304 static int save_config(struct platform *p, struct config *config)
1306 struct platform_powerpc *platform = to_platform_powerpc(p);
1307 struct config *defaults;
1310 defaults = talloc_zero(platform, struct config);
1311 config_set_defaults(defaults);
1313 rc = update_config(platform, config, defaults);
1315 talloc_free(defaults);
1319 static void pre_boot(struct platform *p, const struct config *config)
1321 struct platform_powerpc *platform = to_platform_powerpc(p);
1323 if (!config->ipmi_bootdev_persistent && platform->clear_ipmi_bootdev)
1324 platform->clear_ipmi_bootdev(platform, false);
1326 if (platform->set_os_boot_sensor)
1327 platform->set_os_boot_sensor(platform);
1330 static int get_sysinfo(struct platform *p, struct system_info *sysinfo)
1332 struct platform_powerpc *platform = p->platform_data;
1333 char *buf, *filename;
1336 filename = talloc_asprintf(platform, "%smodel", devtree_dir);
1337 rc = read_file(platform, filename, &buf, &len);
1339 sysinfo->type = talloc_steal(sysinfo, buf);
1340 talloc_free(filename);
1342 filename = talloc_asprintf(platform, "%ssystem-id", devtree_dir);
1343 rc = read_file(platform, filename, &buf, &len);
1345 sysinfo->identifier = talloc_steal(sysinfo, buf);
1346 talloc_free(filename);
1348 sysinfo->bmc_mac = talloc_zero_size(sysinfo, HWADDR_SIZE);
1350 get_ipmi_bmc_mac(p, sysinfo->bmc_mac);
1353 get_ipmi_bmc_versions(p, sysinfo);
1355 if (platform->get_platform_versions)
1356 platform->get_platform_versions(sysinfo);
1361 static bool probe(struct platform *p, void *ctx)
1363 struct platform_powerpc *platform;
1364 struct stat statbuf;
1368 /* we need a device tree */
1369 rc = stat("/proc/device-tree", &statbuf);
1373 if (!S_ISDIR(statbuf.st_mode))
1376 platform = talloc_zero(ctx, struct platform_powerpc);
1377 list_init(&platform->params);
1379 p->platform_data = platform;
1381 bmc_present = stat("/proc/device-tree/bmc", &statbuf) == 0;
1383 if (ipmi_present() && bmc_present) {
1384 pb_debug("platform: using direct IPMI for IPMI paramters\n");
1385 platform->ipmi = ipmi_open(platform);
1386 platform->get_ipmi_bootdev = get_ipmi_bootdev_ipmi;
1387 platform->clear_ipmi_bootdev = clear_ipmi_bootdev_ipmi;
1388 platform->set_os_boot_sensor = set_ipmi_os_boot_sensor;
1389 } else if (!stat(sysparams_dir, &statbuf)) {
1390 pb_debug("platform: using sysparams for IPMI paramters\n");
1391 platform->get_ipmi_bootdev = get_ipmi_bootdev_sysparams;
1392 platform->clear_ipmi_bootdev = clear_ipmi_bootdev_sysparams;
1395 pb_log("platform: no IPMI parameter support\n");
1399 platform->get_platform_versions = hostboot_load_versions;
1405 static struct platform platform_powerpc = {
1407 .dhcp_arch_id = 0x000e,
1409 .load_config = load_config,
1410 .save_config = save_config,
1411 .pre_boot = pre_boot,
1412 .get_sysinfo = get_sysinfo,
1415 register_platform(platform_powerpc);