From 132f7629474424418a5cdd666796ad3cfa4dc0c5 Mon Sep 17 00:00:00 2001 From: Ashley Lai Date: Wed, 22 Aug 2012 16:17:43 -0500 Subject: 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 Signed-off-by: Kent Yoder --- drivers/char/tpm/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/char/tpm/Kconfig') 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 -- cgit v1.2.3