#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 = 500; /* milliseconds */
struct param {
char *name;
struct platform_powerpc {
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);
+ int (*set_os_boot_sensor)(
+ struct platform_powerpc *platform);
};
static const char *known_params[] = {
"petitboot,network",
"petitboot,timeout",
"petitboot,bootdev",
+ "petitboot,bootdevs",
"petitboot,language",
"petitboot,debug?",
NULL,
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)) {
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;
+ const char delim = ' ';
+ 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:...)");
+ talloc_free(opt);
+ if (strchr(pos, delim))
+ continue;
+ return;
+ }
+
+ 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,
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, 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,
case IPMI_BOOTDEV_DISK:
case IPMI_BOOTDEV_NETWORK:
case IPMI_BOOTDEV_CDROM:
+ default:
break;
case IPMI_BOOTDEV_SETUP:
config->autoboot_enabled = false;
return 0;
}
+static int clear_ipmi_bootdev_ipmi(struct platform_powerpc *platform)
+{
+ 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 int load_config(struct platform *p, struct config *config)
{
struct platform_powerpc *platform = to_platform_powerpc(p);
return rc;
}
-static void finalise_config(struct platform *p, const struct config *config)
+static void pre_boot(struct platform *p, const struct config *config)
{
struct platform_powerpc *platform = to_platform_powerpc(p);
- if (config->ipmi_bootdev_persistent && platform->clear_ipmi_bootdev)
+ if (!config->ipmi_bootdev_persistent && platform->clear_ipmi_bootdev)
platform->clear_ipmi_bootdev(platform);
+
+ if (platform->set_os_boot_sensor)
+ platform->set_os_boot_sensor(platform);
}
static int get_sysinfo(struct platform *p, struct system_info *sysinfo)
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 (!stat(sysparams_dir, &statbuf)) {
+ 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;
}
.probe = probe,
.load_config = load_config,
.save_config = save_config,
- .finalise_config = finalise_config,
+ .pre_boot = pre_boot,
.get_sysinfo = get_sysinfo,
};
projects / petitboot / blobdiff