diff options
Diffstat (limited to 'drivers/char/tpm')
| -rw-r--r-- | drivers/char/tpm/tpm.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index 9e3c529cac8..0a08af031a5 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -40,8 +40,9 @@ enum tpm_duration { }; #define TPM_MAX_ORDINAL 243 -#define TPM_MAX_PROTECTED_ORDINAL 12 -#define TPM_PROTECTED_ORDINAL_MASK 0xFF +#define TSC_MAX_ORDINAL 12 +#define TPM_PROTECTED_COMMAND 0x00 +#define TPM_CONNECTION_COMMAND 0x40 /* * Bug workaround - some TPM's don't flush the most @@ -336,13 +337,11 @@ unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip, { int duration_idx = TPM_UNDEFINED; int duration = 0; + u8 category = (ordinal >> 24) & 0xFF; - if (ordinal < TPM_MAX_ORDINAL) + if ((category == TPM_PROTECTED_COMMAND && ordinal < TPM_MAX_ORDINAL) || + (category == TPM_CONNECTION_COMMAND && ordinal < TSC_MAX_ORDINAL)) duration_idx = tpm_ordinal_duration[ordinal]; - else if ((ordinal & TPM_PROTECTED_ORDINAL_MASK) < - TPM_MAX_PROTECTED_ORDINAL) - duration_idx = - tpm_ordinal_duration[ordinal & TPM_PROTECTED_ORDINAL_MASK]; if (duration_idx != TPM_UNDEFINED) duration = chip->vendor.duration[duration_idx]; |