Messages in this thread | | | Date | Thu, 4 May 2017 12:18:27 +0300 | From | Jarkko Sakkinen <> | Subject | Re: [PATCH v2 0/3] Extend the vTPM proxy driver to pass locality to emulator |
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On Wed, May 03, 2017 at 07:42:06PM -0400, Stefan Berger wrote: > 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?
Like using Intel SGX to implement TPM in ring-3. I've thought vtpm_tpm_proxy as generic proxy that you can also use for emulators.
/Jarkko
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