Re: [PATCH v2 0/3] Extend the vTPM proxy driver to pass locality to emulator

From: Stefan Berger
Date: Wed May 03 2017 - 19:42:19 EST

On 05/03/2017 06:38 PM, Jarkko Sakkinen wrote:
On Fri, Apr 28, 2017 at 09:02:15AM -0400, Stefan Berger wrote:
The purpose of this series of patches is to enable the passing of the locality
a command is executing in to a TPM emulator. To enable this we introduce a new
flag for the device creation ioctl that requests that the locality be prepended
to every command. For applications to check which flags the driver supports, we
add a new ioctl that returns a bitmask of supported flags.
This is a weird change proposal as you could use tpm_vtpm_proxy for
other than some TPM emulator.

I think in most cases the recipient of the TPM commands from the vtpm_proxy driver will be a TPM emulator. What do you have in mind?

- fixed return value from function in patch 3/3

Stefan Berger (3):
tpm: vtpm_proxy: Add ioctl to get supported flags
tpm: vtpm_proxy: Implement request_locality
tpm: vtpm_proxy: Add ioctl to request locality prepended to command

drivers/char/tpm/tpm_vtpm_proxy.c | 53 +++++++++++++++++++++++++++++++++++----
include/uapi/linux/vtpm_proxy.h | 15 ++++++++++-
2 files changed, 62 insertions(+), 6 deletions(-)


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