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| author | Julius Werner <jwerner@chromium.org> | 2023-03-09 14:13:32 -0800 |
|---|---|---|
| committer | Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com> | 2023-03-15 12:16:04 +0000 |
| commit | 9082d13a642049aae3002850296b5fc53d6b687f (patch) | |
| tree | 92941c7138d27c1a502aae7f5f6dfd1494e3e7b5 | |
| parent | a7545e09ba991d563bd59aa6daa235ff414e9b5a (diff) | |
| download | vboot-9082d13a642049aae3002850296b5fc53d6b687f.tar.gz | |
tpm2_lite: Treat NV_UNINITIALIZED error as BADINDEX for TPM 2.0
This patch ports the equivalent of CB:20299 to the vboot version of the
TPM library. This should fix a problem that was observed where a created
but not written FWMP space gets a device stuck in recovery mode.
BRANCH=none
BUG=b:272310645
TEST=none
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: If0ef6fdda879b45de0444cdaeb423d01ce109e2c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/4327074
Reviewed-by: Andrey Pronin <apronin@chromium.org>
| -rw-r--r-- | firmware/lib/tpm2_lite/tlcl.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/firmware/lib/tpm2_lite/tlcl.c b/firmware/lib/tpm2_lite/tlcl.c index e81eb509..954717fe 100644 --- a/firmware/lib/tpm2_lite/tlcl.c +++ b/firmware/lib/tpm2_lite/tlcl.c @@ -525,6 +525,11 @@ uint32_t TlclRead(uint32_t index, void* data, uint32_t length) case TPM_SUCCESS: break; + /* + * 0x14a = RC_NV_UNINITIALIZED (space created but not written) + * 0x28b = RC_HANDLE(2) ("unknown handle" = space does not exist) + */ + case 0x14a: case 0x28b: return TPM_E_BADINDEX; |