100 lines
3 KiB
C
100 lines
3 KiB
C
// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
|
|
/*
|
|
* When everything is terrible, tell the FSP as much as possible as to why
|
|
*
|
|
* Copyright 2013-2019 IBM Corp.
|
|
*/
|
|
|
|
#include <errorlog.h>
|
|
#include <ipmi.h>
|
|
#include <pel.h>
|
|
#include <platform.h>
|
|
#include <processor.h>
|
|
#include <sbe-p9.h>
|
|
#include <skiboot.h>
|
|
#include <stack.h>
|
|
#include <timebase.h>
|
|
#include <xscom.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)
|
|
{
|
|
/* Log eSEL event */
|
|
if (ipmi_present())
|
|
ipmi_log_terminate_event(msg);
|
|
|
|
/*
|
|
* If mpipl is supported then trigger SBE interrupt
|
|
* to initiate mpipl
|
|
*/
|
|
p9_sbe_terminate();
|
|
|
|
/*
|
|
* Trigger software xstop (OPAL TI). It will stop all the CPU threads
|
|
* moving them into quiesced state. OCC will collect all FIR data.
|
|
* Upon checkstop signal, BMC will then decide whether to reboot/IPL or
|
|
* not depending on AutoReboot policy, if any. This helps in cases
|
|
* where OPAL is crashing/terminating before host reaches to runtime.
|
|
* With OpenBMC AutoReboot policy, in such cases, it will make sure
|
|
* that system is moved to Quiesced state after 3 or so attempts to
|
|
* IPL. Without OPAL TI, OpenBMC will never know that OPAL is
|
|
* terminating and system would go into never ending IPL'ing loop.
|
|
*
|
|
* Once the system reaches to runtime, OpenBMC resets the boot counter.
|
|
* Hence next time when BMC receieves the OPAL TI, it will IPL the
|
|
* system if AutoReboot is enabled. We don't need to worry about self
|
|
* rebooting.
|
|
*/
|
|
|
|
xscom_trigger_xstop();
|
|
/*
|
|
* Control will not reach here if software xstop has been supported and
|
|
* enabled. If not supported then fallback to cec reboot path below.
|
|
*/
|
|
|
|
/* Reboot call */
|
|
if (platform.cec_reboot)
|
|
platform.cec_reboot();
|
|
|
|
while (1)
|
|
time_wait_ms(100);
|
|
}
|