#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 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[] = {
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)) {
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:
+ 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)
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;
}
return rc;
}
-static void parse_opal_sysparams(struct config *config)
+static int clear_ipmi_bootdev_sysparams(
+ struct platform_powerpc *platform __attribute__((unused)))
+{
+ /* 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;
/* 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)
+{
+ 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 */
+ 0x10, /* operation: set assertion bits */
+ 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)
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;
}
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);
+
+ 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 (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,
};