diff options
| author | Nayna Jain <nayna@linux.vnet.ibm.com> | 2017-01-30 10:59:40 +0100 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2017-02-03 21:03:14 +0100 |
| commit | 1db15344f874f656b267a79467d1e7ee6442ba09 (patch) | |
| tree | d179dbde779749998c1f62c71a8e9901e6b4c15b /drivers/char/tpm/tpm.h | |
| parent | tpm: fix RC value check in tpm2_seal_trusted (diff) | |
| download | linux-1db15344f874f656b267a79467d1e7ee6442ba09.tar.xz linux-1db15344f874f656b267a79467d1e7ee6442ba09.zip | |
tpm: implement TPM 2.0 capability to get active PCR banks
This patch implements the TPM 2.0 capability TPM_CAP_PCRS to
retrieve the active PCR banks from the TPM. This is needed
to enable extending all active banks as recommended by TPM 2.0
TCG Specification.
Signed-off-by: Nayna Jain <nayna@linux.vnet.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Kenneth Goldman <kgold@linux.vnet.ibm.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers/char/tpm/tpm.h')
| -rw-r--r-- | drivers/char/tpm/tpm.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index dbe0c5a72c67..db0398a4e3e5 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -97,6 +97,7 @@ enum tpm2_return_codes { }; enum tpm2_algorithms { + TPM2_ALG_ERROR = 0x0000, TPM2_ALG_SHA1 = 0x0004, TPM2_ALG_KEYEDHASH = 0x0008, TPM2_ALG_SHA256 = 0x000B, @@ -127,6 +128,7 @@ enum tpm2_permanent_handles { }; enum tpm2_capabilities { + TPM2_CAP_PCRS = 5, TPM2_CAP_TPM_PROPERTIES = 6, }; @@ -187,6 +189,8 @@ struct tpm_chip { const struct attribute_group *groups[3]; unsigned int groups_cnt; + + u16 active_banks[7]; #ifdef CONFIG_ACPI acpi_handle acpi_dev_handle; char ppi_version[TPM_PPI_VERSION_LEN + 1]; @@ -540,4 +544,5 @@ int tpm2_auto_startup(struct tpm_chip *chip); void tpm2_shutdown(struct tpm_chip *chip, u16 shutdown_type); unsigned long tpm2_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal); int tpm2_probe(struct tpm_chip *chip); +ssize_t tpm2_get_pcr_allocation(struct tpm_chip *chip); #endif |