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elog: add extended management engine event

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We are seeing ME disabled and ME error events on some devices
and this extended info can help with debug.

Also fix a potential issue where if the log does manage to get
completely full it will never try to shrink it because the only
call to shrink the log happens after a successful event write.
Add a check at elog init time to shrink the log size.

Change-Id: Ib81dc231f6a004b341900374e6c07962cc292031
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1739
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Duncan Laurie 2012-09-01 14:00:23 -07:00 • committed by Stefan Reinauer
commit 5c88c6f2d7
4 changed files with 59 additions and 24 deletions
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4
src/drivers/elog/elog.c
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@ -803,6 +803,10 @@ int elog_init(void)
elog_add_event_word(ELOG_TYPE_LOG_CLEAR,
elog_get_flash()->total_size);
/* Shrink the log if we are getting too full */
if (elog_get_mem()->next_event_offset >= CONFIG_ELOG_FULL_THRESHOLD)
elog_shrink();
#if CONFIG_ELOG_BOOT_COUNT && !defined(__SMM__)
/* Log boot count event except in S3 resume */
if (acpi_slp_type != 3)