diff options
| author | Jiandi An <anjiandi@codeaurora.org> | 2017-03-24 12:55:45 +0300 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2017-04-03 22:46:03 +0300 |
| commit | 08eff49d63ca2bf4cd98c4bdc07dc9d07d52f8f5 (patch) | |
| tree | 69be09a53bd37b9743e580c508f9331f4ca669e0 /drivers/char/tpm/Kconfig | |
| parent | cf8252ca7ca76fa47acf29b717bd52b738538c1e (diff) | |
| download | linux-08eff49d63ca2bf4cd98c4bdc07dc9d07d52f8f5.tar.xz | |
tpm/tpm_crb: Enable TPM CRB interface for ARM64
This enables TPM Command Response Buffer interface driver for
ARM64 and implements an ARM specific TPM CRB start method that
invokes a Secure Monitor Call (SMC) to request the TrustZone
Firmware to execute or cancel a TPM 2.0 command.
In ARM, TrustZone security extensions enable a secure software
environment with Secure Monitor mode. A Secure Monitor Call
(SMC) is used to enter the Secure Monitor mode and perform a
Secure Monitor service to communicate with TrustZone firmware
which has control over the TPM hardware.
Signed-off-by: Jiandi An <anjiandi@codeaurora.org>
Tested-by: Shanker Donthineni <shankerd@codeaurora.org>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> (on x86/PTT)
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers/char/tpm/Kconfig')
| -rw-r--r-- | drivers/char/tpm/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig index d520ac51c11c..a30352202f1f 100644 --- a/drivers/char/tpm/Kconfig +++ b/drivers/char/tpm/Kconfig @@ -136,7 +136,7 @@ config TCG_XEN config TCG_CRB tristate "TPM 2.0 CRB Interface" - depends on X86 && ACPI + depends on ACPI ---help--- If you have a TPM security chip that is compliant with the TCG CRB 2.0 TPM specification say Yes and it will be accessible |