X-Git-Url: http://git.ozlabs.org/?p=petitboot;a=blobdiff_plain;f=discover%2Fplatform-powerpc.c;h=7370d7dcc20a21e78dacc57e2efc8ebe7e3cdb0f;hp=e5dac9efcc8e4b2b8a8f7ef540fe78e5232e8e04;hb=8cfcec4279b229dacfb0589bc443f8a4cbd83082;hpb=9dec4ac0431895f027cfa72e8e0656d3d69e3e63 diff --git a/discover/platform-powerpc.c b/discover/platform-powerpc.c index e5dac9e..7370d7d 100644 --- a/discover/platform-powerpc.c +++ b/discover/platform-powerpc.c @@ -17,10 +17,12 @@ #include "platform.h" #include "ipmi.h" +#include "dt.h" static const char *partition = "common"; static const char *sysparams_dir = "/sys/firmware/opal/sysparams/"; static const char *devtree_dir = "/proc/device-tree/"; +static const int ipmi_timeout = 5000; /* milliseconds. */ struct param { char *name; @@ -30,7 +32,17 @@ struct param { }; struct platform_powerpc { - struct list params; + struct list params; + struct ipmi *ipmi; + bool ipmi_bootdev_persistent; + int (*get_ipmi_bootdev)( + struct platform_powerpc *platform, + uint8_t *bootdev, bool *persistent); + int (*clear_ipmi_bootdev)( + struct platform_powerpc *platform, + bool persistent); + int (*set_os_boot_sensor)( + struct platform_powerpc *platform); }; static const char *known_params[] = { @@ -38,8 +50,11 @@ static const char *known_params[] = { "petitboot,network", "petitboot,timeout", "petitboot,bootdev", + "petitboot,bootdevs", "petitboot,language", "petitboot,debug?", + "petitboot,write?", + "petitboot,snapshots?", NULL, }; @@ -164,7 +179,7 @@ static int write_nvram(struct platform_powerpc *platform) struct process *process; struct param *param; const char *argv[6]; - int rc; + int rc = 0; argv[0] = "nvram"; argv[1] = "--update-config"; @@ -329,7 +344,7 @@ out_err: static int parse_one_dns_config(struct config *config, char *confstr) { - char *tok, *saveptr; + char *tok, *saveptr = NULL; for (tok = strtok_r(confstr, ",", &saveptr); tok; tok = strtok_r(NULL, ",", &saveptr)) { @@ -377,30 +392,126 @@ static void populate_network_config(struct platform_powerpc *platform, talloc_free(val); } +static int read_bootdev(void *ctx, char **pos, struct autoboot_option *opt) +{ + char *delim = strchr(*pos, ' '); + int len, prefix = 0, rc = -1; + enum device_type type; + + if (!strncmp(*pos, "uuid:", strlen("uuid:"))) { + prefix = strlen("uuid:"); + opt->boot_type = BOOT_DEVICE_UUID; + rc = 0; + } else if (!strncmp(*pos, "mac:", strlen("mac:"))) { + prefix = strlen("mac:"); + opt->boot_type = BOOT_DEVICE_UUID; + rc = 0; + } else { + type = find_device_type(*pos); + if (type != DEVICE_TYPE_UNKNOWN) { + opt->type = type; + opt->boot_type = BOOT_DEVICE_TYPE; + rc = 0; + } + } + + if (opt->boot_type == BOOT_DEVICE_UUID) { + if (delim) + len = (int)(delim - *pos) - prefix; + else + len = strlen(*pos); + + opt->uuid = talloc_strndup(ctx, *pos + prefix, len); + } + + /* Always advance pointer to next option or end */ + if (delim) + *pos = delim + 1; + else + *pos += strlen(*pos); + + return rc; +} + static void populate_bootdev_config(struct platform_powerpc *platform, struct config *config) - { + struct autoboot_option *opt, *new = NULL; + char *pos, *end, *old_dev = NULL; + unsigned int n_new = 0; const char *val; + bool conflict; - config->boot_device = NULL; - + /* Check for old-style bootdev */ val = get_param(platform, "petitboot,bootdev"); - if (!val || !strlen(val)) - return; - - if (!strncmp(val, "uuid:", strlen("uuid:"))) { - config->boot_device = talloc_strdup(config, + if (val && strlen(val)) { + pos = talloc_strdup(config, val); + if (!strncmp(val, "uuid:", strlen("uuid:"))) + old_dev = talloc_strdup(config, val + strlen("uuid:")); - - } else if (!strncmp(val, "mac:", strlen("mac:"))) { - config->boot_device = talloc_strdup(config, + else if (!strncmp(val, "mac:", strlen("mac:"))) + old_dev = talloc_strdup(config, val + strlen("mac:")); + } + /* Check for ordered bootdevs */ + val = get_param(platform, "petitboot,bootdevs"); + if (!val || !strlen(val)) { + pos = end = NULL; } else { - pb_log("bootdev config is in an unknown format " - "(expected uuid:... or mac:...)"); + pos = talloc_strdup(config, val); + end = strchr(pos, '\0'); + } + + while (pos && pos < end) { + opt = talloc(config, struct autoboot_option); + + if (read_bootdev(config, &pos, opt)) { + pb_log("bootdev config is in an unknown format " + "(expected uuid:... or mac:...)\n"); + talloc_free(opt); + continue; + } + + new = talloc_realloc(config, new, struct autoboot_option, + n_new + 1); + new[n_new] = *opt; + n_new++; + talloc_free(opt); + + } + + if (!n_new && !old_dev) { + /* If autoboot has been disabled, clear the default options */ + if (!config->autoboot_enabled) { + talloc_free(config->autoboot_opts); + config->n_autoboot_opts = 0; + } + return; + } + + conflict = old_dev && (!n_new || + new[0].boot_type == BOOT_DEVICE_TYPE || + /* Canonical UUIDs are 36 characters long */ + strncmp(new[0].uuid, old_dev, 36)); + + if (!conflict) { + talloc_free(config->autoboot_opts); + config->autoboot_opts = new; + config->n_autoboot_opts = n_new; + return; } + + /* + * Difference detected, defer to old format in case it has been updated + * recently + */ + pb_debug("Old autoboot bootdev detected\n"); + talloc_free(config->autoboot_opts); + config->autoboot_opts = talloc(config, struct autoboot_option); + config->autoboot_opts[0].boot_type = BOOT_DEVICE_UUID; + config->autoboot_opts[0].uuid = talloc_strdup(config, old_dev); + config->n_autoboot_opts = 1; } static void populate_config(struct platform_powerpc *platform, @@ -436,6 +547,14 @@ static void populate_config(struct platform_powerpc *platform, val = get_param(platform, "petitboot,debug?"); config->debug = val && !strcmp(val, "true"); } + + val = get_param(platform, "petitboot,write?"); + if (val) + config->allow_writes = !strcmp(val, "true"); + + val = get_param(platform, "petitboot,snapshots?"); + if (val) + config->disable_snapshots = !strcmp(val, "false"); } static char *iface_config_str(void *ctx, struct interface_config *config) @@ -526,16 +645,40 @@ static void update_network_config(struct platform_powerpc *platform, static void update_bootdev_config(struct platform_powerpc *platform, struct config *config) { - char *val, *tmp = NULL; + char *val = NULL, *boot_str = NULL, *tmp = NULL, *first = NULL; + struct autoboot_option *opt; + const char delim = ' '; + unsigned int i; - if (!config->boot_device) - val = ""; + if (!config->n_autoboot_opts) + first = val = ""; + else if (config->autoboot_opts[0].boot_type == BOOT_DEVICE_UUID) + first = talloc_asprintf(config, "uuid:%s", + config->autoboot_opts[0].uuid); else - tmp = val = talloc_asprintf(platform, - "uuid:%s", config->boot_device); + first = ""; + + for (i = 0; i < config->n_autoboot_opts; i++) { + opt = &config->autoboot_opts[i]; + switch (opt->boot_type) { + case BOOT_DEVICE_TYPE: + boot_str = talloc_asprintf(config, "%s%c", + device_type_name(opt->type), + delim); + break; + case BOOT_DEVICE_UUID: + boot_str = talloc_asprintf(config, "uuid:%s%c", + opt->uuid, delim); + break; + } + tmp = val = talloc_asprintf_append(val, "%s", boot_str); + } - update_string_config(platform, "petitboot,bootdev", val); + update_string_config(platform, "petitboot,bootdevs", val); + update_string_config(platform, "petitboot,bootdev", first); talloc_free(tmp); + if (boot_str) + talloc_free(boot_str); } static int update_config(struct platform_powerpc *platform, @@ -556,6 +699,14 @@ static int update_config(struct platform_powerpc *platform, val = tmp = talloc_asprintf(platform, "%d", config->autoboot_timeout_sec); + if (config->ipmi_bootdev == IPMI_BOOTDEV_INVALID && + platform->clear_ipmi_bootdev) { + platform->clear_ipmi_bootdev(platform, + config->ipmi_bootdev_persistent); + config->ipmi_bootdev = IPMI_BOOTDEV_NONE; + config->ipmi_bootdev_persistent = false; + } + update_string_config(platform, "petitboot,timeout", val); if (tmp) talloc_free(tmp); @@ -563,6 +714,12 @@ static int update_config(struct platform_powerpc *platform, val = config->lang ?: ""; update_string_config(platform, "petitboot,language", val); + if (config->allow_writes == defaults->allow_writes) + val = ""; + else + val = config->allow_writes ? "true" : "false"; + update_string_config(platform, "petitboot,write?", val); + update_network_config(platform, config); update_bootdev_config(platform, config); @@ -570,17 +727,27 @@ static int update_config(struct platform_powerpc *platform, return write_nvram(platform); } -static void set_exclusive_devtype(struct config *config, - enum device_type devtype) +static void set_ipmi_bootdev(struct config *config, enum ipmi_bootdev bootdev, + bool persistent) { - config->n_boot_priorities = 2; - config->boot_priorities = talloc_realloc(config, - config->boot_priorities, struct boot_priority, - config->n_boot_priorities); - config->boot_priorities[0].type = devtype; - config->boot_priorities[0].priority = 0; - config->boot_priorities[1].type = DEVICE_TYPE_ANY; - config->boot_priorities[1].priority = -1; + config->ipmi_bootdev = bootdev; + config->ipmi_bootdev_persistent = persistent; + + switch (bootdev) { + case IPMI_BOOTDEV_NONE: + case IPMI_BOOTDEV_DISK: + case IPMI_BOOTDEV_NETWORK: + case IPMI_BOOTDEV_CDROM: + default: + break; + case IPMI_BOOTDEV_SETUP: + config->autoboot_enabled = false; + break; + case IPMI_BOOTDEV_SAFE: + config->autoboot_enabled = false; + config->safe_mode = true; + break; + } } static int read_bootdev_sysparam(const char *name, uint8_t *val) @@ -589,9 +756,8 @@ static int read_bootdev_sysparam(const char *name, uint8_t *val) char path[50]; int fd, rc; - strcpy(path, sysparams_dir); - assert(strlen(name) < sizeof(path) - strlen(path)); - strcat(path, name); + assert(strlen(sysparams_dir) + strlen(name) < sizeof(path)); + snprintf(path, sizeof(path), "%s%s", sysparams_dir, name); fd = open(path, O_RDONLY); if (fd < 0) { @@ -613,18 +779,10 @@ static int read_bootdev_sysparam(const char *name, uint8_t *val) pb_debug("powerpc: sysparam %s: 0x%02x\n", name, buf[0]); - switch (buf[0]) { - default: + if (!ipmi_bootdev_is_valid(buf[0])) return -1; - case IPMI_BOOTDEV_NONE: - case IPMI_BOOTDEV_NETWORK: - case IPMI_BOOTDEV_DISK: - case IPMI_BOOTDEV_SAFE: - case IPMI_BOOTDEV_CDROM: - case IPMI_BOOTDEV_SETUP: - *val = buf[0]; - } + *val = buf[0]; return 0; } @@ -633,9 +791,8 @@ static int write_bootdev_sysparam(const char *name, uint8_t val) char path[50]; int fd, rc; - strcpy(path, sysparams_dir); - assert(strlen(name) < sizeof(path) - strlen(path)); - strcat(path, name); + assert(strlen(sysparams_dir) + strlen(name) < sizeof(path)); + snprintf(path, sizeof(path), "%s%s", sysparams_dir, name); fd = open(path, O_WRONLY); if (fd < 0) { @@ -668,7 +825,23 @@ static int write_bootdev_sysparam(const char *name, uint8_t val) return rc; } -static void parse_opal_sysparams(struct config *config) +static int clear_ipmi_bootdev_sysparams( + struct platform_powerpc *platform __attribute__((unused)), + bool persistent) +{ + if (persistent) { + /* invalidate default-boot-device setting */ + write_bootdev_sysparam("default-boot-device", 0xff); + } else { + /* invalidate next-boot-device setting */ + write_bootdev_sysparam("next-boot-device", 0xff); + } + return 0; +} + +static int get_ipmi_bootdev_sysparams( + struct platform_powerpc *platform __attribute__((unused)), + uint8_t *bootdev, bool *persistent) { uint8_t next_bootdev, default_bootdev; bool next_valid, default_valid; @@ -682,30 +855,157 @@ static void parse_opal_sysparams(struct config *config) /* nothing valid? no need to change the config */ if (!next_valid && !default_valid) - return; + return -1; - if (!next_valid) - next_bootdev = default_bootdev; + *persistent = !next_valid; + *bootdev = next_valid ? next_bootdev : default_bootdev; + return 0; +} - switch (next_bootdev) { - case IPMI_BOOTDEV_NONE: - return; - case IPMI_BOOTDEV_DISK: - set_exclusive_devtype(config, DEVICE_TYPE_DISK); - break; - case IPMI_BOOTDEV_NETWORK: - set_exclusive_devtype(config, DEVICE_TYPE_NETWORK); - break; - case IPMI_BOOTDEV_CDROM: - set_exclusive_devtype(config, DEVICE_TYPE_OPTICAL); - break; - case IPMI_BOOTDEV_SETUP: - config->autoboot_enabled = false; - break; - case IPMI_BOOTDEV_SAFE: - config->autoboot_enabled = false; - config->safe_mode = true; - break; +static int clear_ipmi_bootdev_ipmi(struct platform_powerpc *platform, + bool persistent __attribute__((unused))) +{ + uint16_t resp_len; + uint8_t resp[1]; + uint8_t req[] = { + 0x05, /* parameter selector: boot flags */ + 0x80, /* data 1: valid */ + 0x00, /* data 2: bootdev: no override */ + 0x00, /* data 3: system defaults */ + 0x00, /* data 4: no request for shared mode, mux defaults */ + 0x00, /* data 5: no instance request */ + }; + + resp_len = sizeof(resp); + + ipmi_transaction(platform->ipmi, IPMI_NETFN_CHASSIS, + IPMI_CMD_CHASSIS_SET_SYSTEM_BOOT_OPTIONS, + req, sizeof(req), + resp, &resp_len, + ipmi_timeout); + return 0; +} + +static int get_ipmi_bootdev_ipmi(struct platform_powerpc *platform, + uint8_t *bootdev, bool *persistent) +{ + uint16_t resp_len; + uint8_t resp[8]; + int rc; + uint8_t req[] = { + 0x05, /* parameter selector: boot flags */ + 0x00, /* no set selector */ + 0x00, /* no block selector */ + }; + + resp_len = sizeof(resp); + rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_CHASSIS, + IPMI_CMD_CHASSIS_GET_SYSTEM_BOOT_OPTIONS, + req, sizeof(req), + resp, &resp_len, + ipmi_timeout); + if (rc) { + pb_log("platform: error reading IPMI boot options\n"); + return -1; + } + + if (resp_len != sizeof(resp)) { + pb_log("platform: unexpected length (%d) in " + "boot options response\n", resp_len); + return -1; + } + + if (resp[0] != 0) { + pb_log("platform: non-zero completion code %d from IPMI req\n", + resp[0]); + return -1; + } + + /* check for correct parameter version */ + if ((resp[1] & 0xf) != 0x1) { + pb_log("platform: unexpected version (0x%x) in " + "boot options response\n", resp[0]); + return -1; + } + + /* check for valid paramters */ + if (resp[2] & 0x80) { + pb_debug("platform: boot options are invalid/locked\n"); + return -1; + } + + *persistent = false; + + /* check for valid flags */ + if (!(resp[3] & 0x80)) { + pb_debug("platform: boot flags are invalid, ignoring\n"); + return 0; + } + + *persistent = resp[3] & 0x40; + *bootdev = (resp[4] >> 2) & 0x0f; + return 0; +} + +static int set_ipmi_os_boot_sensor(struct platform_powerpc *platform) +{ + int sensor_number; + uint16_t resp_len; + uint8_t resp[1]; + uint8_t req[] = { + 0x00, /* sensor number: os boot */ + 0xA9, /* operation: set everything */ + 0x00, /* sensor reading: none */ + 0x40, /* assertion mask lsb: set state 6 */ + 0x00, /* assertion mask msb: none */ + 0x00, /* deassertion mask lsb: none */ + 0x00, /* deassertion mask msb: none */ + 0x00, /* event data 1: none */ + 0x00, /* event data 2: none */ + 0x00, /* event data 3: none */ + }; + + sensor_number = get_ipmi_sensor(platform, IPMI_SENSOR_ID_OS_BOOT); + if (sensor_number < 0) { + pb_log("Couldn't find OS boot sensor in device tree\n"); + return -1; + } + + req[0] = sensor_number; + + resp_len = sizeof(resp); + + ipmi_transaction(platform->ipmi, IPMI_NETFN_SE, + IPMI_CMD_SENSOR_SET, + req, sizeof(req), + resp, &resp_len, + ipmi_timeout); return 0; + + return 0; +} + +static void get_ipmi_bmc_mac(struct platform *p, uint8_t *buf) +{ + struct platform_powerpc *platform = p->platform_data; + uint16_t resp_len = 8; + uint8_t resp[8]; + uint8_t req[] = { 0x1, 0x5, 0x0, 0x0 }; + int i, rc; + + rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_TRANSPORT, + IPMI_CMD_TRANSPORT_GET_LAN_PARAMS, + req, sizeof(req), + resp, &resp_len, + ipmi_timeout); + + pb_debug("BMC MAC resp [%d][%d]:\n", rc, resp_len); + + if (rc == 0 && resp_len > 0) { + for (i = 2; i < resp_len; i++) { + pb_debug(" %x", resp[i]); + buf[i - 2] = resp[i]; + } + pb_debug("\n"); } } @@ -720,7 +1020,15 @@ static int load_config(struct platform *p, struct config *config) populate_config(platform, config); - parse_opal_sysparams(config); + if (platform->get_ipmi_bootdev) { + bool bootdev_persistent; + uint8_t bootdev; + rc = platform->get_ipmi_bootdev(platform, &bootdev, + &bootdev_persistent); + if (!rc && ipmi_bootdev_is_valid(bootdev)) { + set_ipmi_bootdev(config, bootdev, bootdev_persistent); + } + } return 0; } @@ -740,10 +1048,15 @@ static int save_config(struct platform *p, struct config *config) return rc; } -static void finalise_config(struct platform *platform __attribute__((unused))) +static void pre_boot(struct platform *p, const struct config *config) { - /* invalidate next-boot-device setting */ - write_bootdev_sysparam("next-boot-device", 0xff); + struct platform_powerpc *platform = to_platform_powerpc(p); + + if (!config->ipmi_bootdev_persistent && platform->clear_ipmi_bootdev) + platform->clear_ipmi_bootdev(platform, false); + + if (platform->set_os_boot_sensor) + platform->set_os_boot_sensor(platform); } static int get_sysinfo(struct platform *p, struct system_info *sysinfo) @@ -764,6 +1077,10 @@ static int get_sysinfo(struct platform *p, struct system_info *sysinfo) sysinfo->identifier = talloc_steal(sysinfo, buf); talloc_free(filename); + sysinfo->bmc_mac = talloc_zero_size(sysinfo, HWADDR_SIZE); + if (platform->ipmi) + get_ipmi_bmc_mac(p, sysinfo->bmc_mac); + return 0; } @@ -781,10 +1098,26 @@ static bool probe(struct platform *p, void *ctx) if (!S_ISDIR(statbuf.st_mode)) return false; - platform = talloc(ctx, struct platform_powerpc); + platform = talloc_zero(ctx, struct platform_powerpc); list_init(&platform->params); p->platform_data = platform; + + if (ipmi_present()) { + pb_debug("platform: using direct IPMI for IPMI paramters\n"); + platform->ipmi = ipmi_open(platform); + platform->get_ipmi_bootdev = get_ipmi_bootdev_ipmi; + platform->clear_ipmi_bootdev = clear_ipmi_bootdev_ipmi; + platform->set_os_boot_sensor = set_ipmi_os_boot_sensor; + } else if (!stat(sysparams_dir, &statbuf)) { + pb_debug("platform: using sysparams for IPMI paramters\n"); + platform->get_ipmi_bootdev = get_ipmi_bootdev_sysparams; + platform->clear_ipmi_bootdev = clear_ipmi_bootdev_sysparams; + + } else { + pb_log("platform: no IPMI parameter support\n"); + } + return true; } @@ -795,7 +1128,7 @@ static struct platform platform_powerpc = { .probe = probe, .load_config = load_config, .save_config = save_config, - .finalise_config = finalise_config, + .pre_boot = pre_boot, .get_sysinfo = get_sysinfo, };