#include <string.h>
#include <stdlib.h>
#include <limits.h>
+#include <errno.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/fcntl.h>
#include <sys/stat.h>
+#include <file/file.h>
#include <talloc/talloc.h>
#include <list/list.h>
#include <log/log.h>
#include "platform.h"
static const char *partition = "common";
-static const char *sysparams_dir = "/sys/firmware/opal/sysparams";
+static const char *sysparams_dir = "/sys/firmware/opal/sysparams/";
+static const char *devtree_dir = "/proc/device-tree/";
struct param {
char *name;
"auto-boot?",
"petitboot,network",
"petitboot,timeout",
+ "petitboot,bootdev",
+ "petitboot,language",
+ "petitboot,debug?",
NULL,
};
static void populate_network_config(struct platform_powerpc *platform,
struct config *config)
{
+ char *val, *saveptr = NULL;
const char *cval;
- char *val;
int i;
cval = get_param(platform, "petitboot,network");
val = talloc_strdup(config, cval);
for (i = 0; ; i++) {
- char *tok, *saveptr;
+ char *tok;
tok = strtok_r(i == 0 ? val : NULL, " ", &saveptr);
if (!tok)
talloc_free(val);
}
+static void populate_bootdev_config(struct platform_powerpc *platform,
+ struct config *config)
+
+{
+ const char *val;
+
+ config->boot_device = NULL;
+
+ val = get_param(platform, "petitboot,bootdev");
+ if (!val || !strlen(val))
+ return;
+
+ if (!strncmp(val, "uuid:", strlen("uuid:"))) {
+ config->boot_device = talloc_strdup(config,
+ val + strlen("uuid:"));
+
+ } else if (!strncmp(val, "mac:", strlen("mac:"))) {
+ config->boot_device = talloc_strdup(config,
+ val + strlen("mac:"));
+
+ } else {
+ pb_log("bootdev config is in an unknown format "
+ "(expected uuid:... or mac:...)");
+ }
+}
+
static void populate_config(struct platform_powerpc *platform,
struct config *config)
{
}
}
+ val = get_param(platform, "petitboot,language");
+ config->lang = val ? talloc_strdup(config, val) : NULL;
+
populate_network_config(platform, config);
+
+ populate_bootdev_config(platform, config);
+
+ if (!config->debug) {
+ val = get_param(platform, "petitboot,debug?");
+ config->debug = val && !strcmp(val, "true");
+ }
}
static char *iface_config_str(void *ctx, struct interface_config *config)
talloc_free(val);
}
+static void update_bootdev_config(struct platform_powerpc *platform,
+ struct config *config)
+{
+ char *val, *tmp = NULL;
+
+ if (!config->boot_device)
+ val = "";
+ else
+ tmp = val = talloc_asprintf(platform,
+ "uuid:%s", config->boot_device);
+
+ update_string_config(platform, "petitboot,bootdev", val);
+ talloc_free(tmp);
+}
+
static int update_config(struct platform_powerpc *platform,
struct config *config, struct config *defaults)
{
if (tmp)
talloc_free(tmp);
+ val = config->lang ?: "";
+ update_string_config(platform, "petitboot,language", val);
+
update_network_config(platform, config);
+ update_bootdev_config(platform, config);
+
return write_nvram(platform);
}
IPMI_BOOTDEV_NONE = 0x00,
IPMI_BOOTDEV_NETWORK = 0x01,
IPMI_BOOTDEV_DISK = 0x2,
+ IPMI_BOOTDEV_SAFE = 0x3,
IPMI_BOOTDEV_CDROM = 0x5,
IPMI_BOOTDEV_SETUP = 0x6,
};
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];
return 0;
}
+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);
+
+ fd = open(path, O_WRONLY);
+ if (fd < 0) {
+ pb_debug("powerpc: can't access sysparam %s for writing\n",
+ name);
+ return -1;
+ }
+
+ for (;;) {
+ errno = 0;
+ rc = write(fd, &val, sizeof(val));
+ if (rc == sizeof(val)) {
+ rc = 0;
+ break;
+ }
+
+ if (rc <= 0 && errno != EINTR) {
+ pb_log("powerpc: error updating sysparam %s: %s",
+ name, strerror(errno));
+ rc = -1;
+ break;
+ }
+ }
+
+ close(fd);
+
+ if (!rc)
+ pb_debug("powerpc: set sysparam %s: 0x%02x\n", name, val);
+
+ return rc;
+}
+
static void parse_opal_sysparams(struct config *config)
{
uint8_t next_bootdev, default_bootdev;
if (!next_valid)
next_bootdev = default_bootdev;
- /* todo: copy default to next */
-
switch (next_bootdev) {
case IPMI_BOOTDEV_NONE:
return;
case IPMI_BOOTDEV_SETUP:
config->autoboot_enabled = false;
break;
+ case IPMI_BOOTDEV_SAFE:
+ config->autoboot_enabled = false;
+ config->safe_mode = true;
+ break;
}
}
return rc;
}
+static void finalise_config(struct platform *platform __attribute__((unused)))
+{
+ /* invalidate next-boot-device setting */
+ write_bootdev_sysparam("next-boot-device", 0xff);
+}
+
+static int get_sysinfo(struct platform *p, struct system_info *sysinfo)
+{
+ struct platform_powerpc *platform = p->platform_data;
+ char *buf, *filename;
+ int len, rc;
+
+ filename = talloc_asprintf(platform, "%smodel", devtree_dir);
+ rc = read_file(platform, filename, &buf, &len);
+ if (rc == 0)
+ sysinfo->type = talloc_steal(sysinfo, buf);
+ talloc_free(filename);
+
+ filename = talloc_asprintf(platform, "%ssystem-id", devtree_dir);
+ rc = read_file(platform, filename, &buf, &len);
+ if (rc == 0)
+ sysinfo->identifier = talloc_steal(sysinfo, buf);
+ talloc_free(filename);
+
+ return 0;
+}
+
static bool probe(struct platform *p, void *ctx)
{
struct platform_powerpc *platform;
struct stat statbuf;
int rc;
- /* we need a device tree and a working nvram binary */
+ /* we need a device tree */
rc = stat("/proc/device-tree", &statbuf);
if (rc)
return false;
if (!S_ISDIR(statbuf.st_mode))
return false;
- rc = process_run_simple(ctx, "nvram", "--print-config", NULL);
- if (!WIFEXITED(rc) || WEXITSTATUS(rc) != 0)
- return false;
-
platform = talloc(ctx, struct platform_powerpc);
list_init(&platform->params);
return true;
}
+
static struct platform platform_powerpc = {
- .name = "powerpc",
- .dhcp_arch_id = 0x000e,
- .probe = probe,
- .load_config = load_config,
- .save_config = save_config,
+ .name = "powerpc",
+ .dhcp_arch_id = 0x000e,
+ .probe = probe,
+ .load_config = load_config,
+ .save_config = save_config,
+ .finalise_config = finalise_config,
+ .get_sysinfo = get_sysinfo,
};
register_platform(platform_powerpc);