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

[Stefan Berger]

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?

> > v1->v2:
> >    - 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(-)
> >
> > --
> > 2.4.3
> /Jarkko
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