diff options
| author | Tomas Winkler <tomas.winkler@intel.com> | 2018-03-10 17:15:45 +0200 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2018-03-23 10:18:06 +0200 |
| commit | 076d356460273e3c702f46fc87471b508fb55e7b (patch) | |
| tree | b19fca82f9222da0cd5bb0a30851563fe60a27c2 /drivers/char/tpm/tpm-interface.c | |
| parent | 09b17f321c15879833bbe072cf28e3f0625d3fb7 (diff) | |
| download | linux-076d356460273e3c702f46fc87471b508fb55e7b.tar.gz linux-076d356460273e3c702f46fc87471b508fb55e7b.tar.xz | |
tpm2: add longer timeouts for creation commands.
TPM2_CC_Create(0x153) and TPM2_CC_CreatePrimary (0x131) involve generation
of crypto keys which can be a computationally intensive task. The timeout
is set to 3min. Rather than increasing default timeout a new constant is
added, to not stall for too long on regular commands failures.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers/char/tpm/tpm-interface.c')
| -rw-r--r-- | drivers/char/tpm/tpm-interface.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index 43ded5dfc7d9..47aacecdc85c 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -696,6 +696,8 @@ int tpm_get_timeouts(struct tpm_chip *chip) msecs_to_jiffies(TPM2_DURATION_MEDIUM); chip->duration[TPM_LONG] = msecs_to_jiffies(TPM2_DURATION_LONG); + chip->duration[TPM_LONG_LONG] = + msecs_to_jiffies(TPM2_DURATION_LONG_LONG); chip->flags |= TPM_CHIP_FLAG_HAVE_TIMEOUTS; return 0; @@ -784,6 +786,7 @@ int tpm_get_timeouts(struct tpm_chip *chip) usecs_to_jiffies(be32_to_cpu(cap.duration.tpm_medium)); chip->duration[TPM_LONG] = usecs_to_jiffies(be32_to_cpu(cap.duration.tpm_long)); + chip->duration[TPM_LONG_LONG] = 0; /* not used under 1.2 */ /* The Broadcom BCM0102 chipset in a Dell Latitude D820 gets the above * value wrong and apparently reports msecs rather than usecs. So we |