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| author | Daniel Kurtz <djkurtz@chromium.org> | 2018-05-24 18:24:07 -0600 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2018-05-25 16:40:41 +0000 |
| commit | 7c670695fa560dee9fd7639b0ed2a2cf56889f53 (patch) | |
| tree | ba8383d9a9296c7356ae9d87df62c1d277533c51 /src/drivers/elog | |
| parent | 12173feef8a92962daf61e56db89d948d27916ef (diff) | |
| download | coreboot-7c670695fa560dee9fd7639b0ed2a2cf56889f53.tar.gz coreboot-7c670695fa560dee9fd7639b0ed2a2cf56889f53.tar.bz2 coreboot-7c670695fa560dee9fd7639b0ed2a2cf56889f53.zip | |
elog: Only log POST code from previous boot on non-S3 resume
It doesn't make sense to log post codes from a previous (failed) boot
if we are resuming from S3, since the previous boot has to have been
successful in order to enter S3 in the first place.
While we are at it, use a helper function to combine conditionals and
improve readability.
BUG=none
TEST=boot, suspend & resume grunt
Change-Id: I4f3bb8526a0c8c0ea1efd924628b33c147543b88
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-on: https://review.coreboot.org/26528
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/drivers/elog')
| -rw-r--r-- | src/drivers/elog/elog.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/src/drivers/elog/elog.c b/src/drivers/elog/elog.c index ff4f0364c5e1..d41457d5521c 100644 --- a/src/drivers/elog/elog.c +++ b/src/drivers/elog/elog.c @@ -737,6 +737,21 @@ static int elog_sync_to_nv(void) } /* + * Do not log boot count events in S3 resume or SMM. + */ +static bool elog_do_add_boot_count(void) +{ + if (ENV_SMM) + return false; + +#if IS_ENABLED(CONFIG_HAVE_ACPI_RESUME) + return !acpi_is_wakeup_s3(); +#else + return true; +#endif +} + +/* * Event log main entry point */ int elog_init(void) @@ -784,20 +799,15 @@ int elog_init(void) " shrink size %d\n", region_device_sz(&nv_dev), full_threshold, shrink_size); -#if !defined(__SMM__) - /* Log boot count event except in S3 resume */ -#if IS_ENABLED(CONFIG_HAVE_ACPI_RESUME) - if (!acpi_is_wakeup_s3()) -#endif + if (elog_do_add_boot_count()) { elog_add_event_dword(ELOG_TYPE_BOOT, boot_count_read()); #if IS_ENABLED(CONFIG_ARCH_X86) - /* Check and log POST codes from previous boot */ - if (IS_ENABLED(CONFIG_CMOS_POST)) - cmos_post_log(); + /* Check and log POST codes from previous boot */ + if (IS_ENABLED(CONFIG_CMOS_POST)) + cmos_post_log(); #endif -#endif - + } return 0; } |