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/* Copyright 2015 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <errorlog.h>
#include <ipmi.h>
#include <pel.h>
#include <platform.h>
#include <processor.h>
#include <skiboot.h>
#include <stack.h>
#include <timebase.h>
/* Use same attention SRC for BMC based machine */
DEFINE_LOG_ENTRY(OPAL_RC_ATTN, OPAL_PLATFORM_ERR_EVT,
OPAL_ATTN, OPAL_PLATFORM_FIRMWARE,
OPAL_ERROR_PANIC, OPAL_ABNORMAL_POWER_OFF);
/* Maximum buffer size to capture backtrace and other useful information */
#define IPMI_TI_BUFFER_SIZE (IPMI_MAX_PEL_SIZE - PEL_MIN_SIZE)
static char ti_buffer[IPMI_TI_BUFFER_SIZE];
#define STACK_BUF_ENTRIES 20
static struct bt_entry bt_buf[STACK_BUF_ENTRIES];
/* Log eSEL event with OPAL backtrace */
static void ipmi_log_terminate_event(const char *msg)
{
struct bt_metadata metadata;
unsigned int ti_len;
unsigned int ti_size;
struct errorlog *elog_buf;
/* Fill OPAL version */
ti_len = snprintf(ti_buffer, IPMI_TI_BUFFER_SIZE,
"OPAL version : %s\n", version);
/* File information */
ti_len += snprintf(ti_buffer + ti_len, IPMI_TI_BUFFER_SIZE - ti_len,
"File info : %s\n", msg);
ti_size = IPMI_TI_BUFFER_SIZE - ti_len;
/* Backtrace */
backtrace_create(bt_buf, STACK_BUF_ENTRIES, &metadata);
metadata.token = OPAL_LAST + 1;
backtrace_print(bt_buf, &metadata, ti_buffer + ti_len, &ti_size, true);
/* Create eSEL event and commit */
elog_buf = opal_elog_create(&e_info(OPAL_RC_ATTN), 0);
log_append_data(elog_buf, (char *)&ti_buffer, ti_len + ti_size);
log_commit(elog_buf);
}
void __attribute__((noreturn)) ipmi_terminate(const char *msg)
{
/* Terminate called before initializing IPMI (early abort) */
if (!ipmi_present()) {
if (platform.cec_reboot)
platform.cec_reboot();
goto out;
}
/* Log eSEL event */
ipmi_log_terminate_event(msg);
/* Reboot call */
if (platform.cec_reboot)
platform.cec_reboot();
out:
while (1)
time_wait_ms(100);
}
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