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| author | Ashley Lai <adlai@linux.vnet.ibm.com> | 2012-08-22 16:17:43 -0500 |
|---|---|---|
| committer | Kent Yoder <key@linux.vnet.ibm.com> | 2012-08-22 16:21:45 -0500 |
| commit | 132f7629474424418a5cdd666796ad3cfa4dc0c5 (patch) | |
| tree | ba789d04e7bd6c121500895f61d7087b240a1fe4 /drivers/char/tpm/Kconfig | |
| parent | 7e72fe73bfc7e4219b8dd212026c7113f4e37f91 (diff) | |
| download | lwn-132f7629474424418a5cdd666796ad3cfa4dc0c5.tar.gz lwn-132f7629474424418a5cdd666796ad3cfa4dc0c5.zip | |
drivers/char/tpm: Add new device driver to support IBM vTPM
This patch adds a new device driver to support IBM virtual TPM
(vTPM) for PPC64. IBM vTPM is supported through the adjunct
partition with firmware release 740 or higher. With vTPM
support, each lpar is able to have its own vTPM without the
physical TPM hardware.
This driver provides TPM functionalities by communicating with
the vTPM adjunct partition through Hypervisor calls (Hcalls)
and Command/Response Queue (CRQ) commands.
Signed-off-by: Ashley Lai <adlai@us.ibm.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Diffstat (limited to 'drivers/char/tpm/Kconfig')
| -rw-r--r-- | drivers/char/tpm/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig index c4aac486ade5..915875e431d2 100644 --- a/drivers/char/tpm/Kconfig +++ b/drivers/char/tpm/Kconfig @@ -73,4 +73,12 @@ config TCG_INFINEON Further information on this driver and the supported hardware can be found at http://www.trust.rub.de/projects/linux-device-driver-infineon-tpm/ +config TCG_IBMVTPM + tristate "IBM VTPM Interface" + depends on PPC64 + ---help--- + If you have IBM virtual TPM (VTPM) support say Yes and it + will be accessible from within Linux. To compile this driver + as a module, choose M here; the module will be called tpm_ibmvtpm. + endif # TCG_TPM |