diff options
| author | Jon Murphy <jpmurphy@google.com> | 2023-09-05 11:43:14 -0600 |
|---|---|---|
| committer | Raul Rangel <rrangel@chromium.org> | 2023-09-28 16:55:03 +0000 |
| commit | a2f08aa5c4420053d80ca23992b9e61888976f7c (patch) | |
| tree | ec265453e1f5548edc98efcdd765fa56f7ee6cde /src/security/tpm | |
| parent | db4e93ba1a927527f4a095aa8395c31c87d2438d (diff) | |
drivers/tpm: Add tpm failure handling
Add additional failure mode logic for the TPM to enable an
automated recovery mode for GSC hangs.
BUG=b:296439237
TEST=Force the error by hard coding the return code and observe the
device entering hibernate.
BRANCH=None
Change-Id: Ieec7e9227d538130354dea8b772d0306cdda1237
Signed-off-by: Jon Murphy <jpmurphy@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77667
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/security/tpm')
| -rw-r--r-- | src/security/tpm/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/security/tpm/Kconfig b/src/security/tpm/Kconfig index 39134c1c71..c06150dacd 100644 --- a/src/security/tpm/Kconfig +++ b/src/security/tpm/Kconfig @@ -172,3 +172,12 @@ config PCR_RUNTIME_DATA default 3 endmenu # Trusted Platform Module (tpm) + +config TPM_SETUP_HIBERNATE_ON_ERR + bool + depends on EC_GOOGLE_CHROMEEC + help + Select this to force a device to hibernate on the next AP shutdown when a TPM + setup error occurs. This will cause a cold boot of the system and offer an + opportunity to recover the TPM should it be hung. This is only effective if + the Z-State brings the power rail down. |