diff options
| author | Keith Short <keithshort@chromium.org> | 2019-02-05 16:15:10 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-02-13 13:03:33 +0000 |
| commit | e0f340054761086e4c329a2f66bb8f5b6e13d7c9 (patch) | |
| tree | 977ba95155edd474d6d67c4bf61f58ee869c094f /src/vendorcode/google/chromeos/chromeos.h | |
| parent | 91be00ef1be29e6670599aa5e9c297854a928d07 (diff) | |
| download | coreboot-e0f340054761086e4c329a2f66bb8f5b6e13d7c9.tar.xz | |
coreboot: check Cr50 PM mode on normal boot
Under some scenarios the key ladder on the Cr50 can get disabled. If
this state is detected, trigger a reboot of the Cr50 to restore full
TPM functionality.
BUG=b:121463033
BRANCH=none
TEST=Built coreboot on sarien and grunt platforms.
TEST=Ran 'gsctool -a -m disable' and reboot. Verified coreboot sends
VENDOR_CC_IMMEDIATE_RESET command to Cr50 and that the Cr50 resets and
then the platform boots normally.
TEST=Performed Cr50 rollback to 0.0.22 which does not support the
VENDOR_CC_TPM_MODE command, confirmed that platform boots normally and
the coreboot log captures the unsupported command.
Tested-by: Keith Short <keithshort@chromium.org>
Change-Id: I70e012efaf1079d43890e909bc6b5015bef6835a
Signed-off-by: Keith Short <keithshort@chromium.org>
Reviewed-on: https://review.coreboot.org/c/31260
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Diffstat (limited to 'src/vendorcode/google/chromeos/chromeos.h')
| -rw-r--r-- | src/vendorcode/google/chromeos/chromeos.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/vendorcode/google/chromeos/chromeos.h b/src/vendorcode/google/chromeos/chromeos.h index f7e2ae9b8e..6831261dc5 100644 --- a/src/vendorcode/google/chromeos/chromeos.h +++ b/src/vendorcode/google/chromeos/chromeos.h @@ -33,8 +33,11 @@ static inline void mark_watchdog_tombstone(void) { return; } static inline void reboot_from_watchdog(void) { return; } #endif /* CONFIG_CHROMEOS */ -/* Defined as weak function in cr50_enable_update.c */ -void mainboard_cr50_update_reset(void); +/** + * Perform any platform specific actions required prior to resetting the Cr50. + * Defined as weak function in cr50_enable_update.c + */ +void mainboard_prepare_cr50_reset(void); struct romstage_handoff; |