diff options
| -rw-r--r-- | src/lib/tpm2_tlcl.c | 8 | ||||
| -rw-r--r-- | src/lib/tpm2_tlcl_structures.h | 10 |
2 files changed, 17 insertions, 1 deletions
diff --git a/src/lib/tpm2_tlcl.c b/src/lib/tpm2_tlcl.c index 754f835719..fde90a002a 100644 --- a/src/lib/tpm2_tlcl.c +++ b/src/lib/tpm2_tlcl.c @@ -210,7 +210,13 @@ uint32_t tlcl_read(uint32_t index, void *data, uint32_t length) case 0: break; - case 0x28b: + /* Uninitialized, returned if the space hasn't been written. */ + case TPM_RC_NV_UNINITIALIZED: + /* + * Bad index, cr50 specific value, returned if the space + * hasn't been defined. + */ + case TPM_RC_CR50_NV_UNDEFINED: return TPM_E_BADINDEX; default: diff --git a/src/lib/tpm2_tlcl_structures.h b/src/lib/tpm2_tlcl_structures.h index 2d6164b1b7..4ea20783e5 100644 --- a/src/lib/tpm2_tlcl_structures.h +++ b/src/lib/tpm2_tlcl_structures.h @@ -121,8 +121,18 @@ struct tpm_header { #define TPM_ST_NO_SESSIONS 0x8001 #define TPM_ST_SESSIONS 0x8002 +/* Values copied from tpm2/tpm_types.h */ #define RC_VER1 0x100 #define TPM_RC_INITIALIZE ((TPM_RC)(RC_VER1 + 0x000)) +#define TPM_RC_NV_UNINITIALIZED ((TPM_RC)(RC_VER1 + 0x04A)) + +/* + * Cr50 returns this code when an attempt is made to read an NV location which + * has not yet been defined. This is an aggregation of various return code + * extensions which may or may not match if a different TPM2 device is + * used. + */ +#define TPM_RC_CR50_NV_UNDEFINED 0x28b /* TPM command structures. */ |