diff options
| author | Vadim Bendebury <vbendeb@chromium.org> | 2016-07-28 17:17:19 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-07-29 19:22:04 -0700 |
| commit | 3d01f46a5b38d5e3ad9fd07a32ff4011523d9c19 (patch) | |
| tree | bb03301bfcc4a9d20d3813f44b06e70960429e1e /include/system.h | |
| parent | 17276a7a7e55329e2c67486094e4a80d85b72950 (diff) | |
| download | chrome-ec-3d01f46a5b38d5e3ad9fd07a32ff4011523d9c19.tar.gz | |
HACK tpm: reset fallback counter when ready
As a temp measure until a proper solution is implemented, reset the
restart counter when the PCR_Read command is issued by the host.
This is a good indication that Chrome OS is through the boot process,
as PCR value is used to determine the boot mode.
BRANCH=none
BUG=chrome-os-partner:55667
TEST=installed the new image on a Kevin cr50 and rebooted it in normal
and recovery modes, observed on the cr50 console the message like
> system_process_retry_counter:retry counter 1
Change-Id: Ib55e161d5edbf8f6e2d387fd756b94aa53c20ed8
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/364311
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Diffstat (limited to 'include/system.h')
| -rw-r--r-- | include/system.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/system.h b/include/system.h index 39bdb95cd0..8d792123ff 100644 --- a/include/system.h +++ b/include/system.h @@ -458,4 +458,12 @@ uintptr_t system_get_fw_reset_vector(uintptr_t base); */ int system_is_reboot_warm(void); +/** + * On systems with protection from a failing RW update: read the retry counter + * and act on it. + * + * @return EC_SUCCESS if no flash write errors were encounterd. + */ +int system_process_retry_counter(void); + #endif /* __CROS_EC_SYSTEM_H */ |