Re: [PATCH v2 3/3] tpm: vtpm_proxy: Add ioctl to request locality prepended to command

From: Jarkko Sakkinen
Date: Thu May 04 2017 - 05:20:39 EST

On Wed, May 03, 2017 at 07:40:48PM -0400, Stefan Berger wrote:
> On 05/03/2017 06:37 PM, Jarkko Sakkinen wrote:
> > On Fri, Apr 28, 2017 at 09:02:18AM -0400, Stefan Berger wrote:
> > > Add an ioctl to request that the locality be prepended to every TPM
> > > command.
> > Don't really understand this change. Why locality is prenpended?
> Commands can be executed under locality 0-3 and for some commands it is
> important to know which locality a user may have chosen. How else should we
> convey that locality to the TPM emulator ?

Why this is not in the commit message?

More scalable way to do this would be to have a set of vtpm proxy
commands. There could be a command for requesting and releasing
locality. That would be more clean.