From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: Stefan Berger <stefanb@linux.vnet.ibm.com>
Cc: tpmdd-devel@lists.sourceforge.net,
linux-security-module@vger.kernel.org,
jgunthorpe@obsidianresearch.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 0/3] Extend the vTPM proxy driver to pass locality to emulator
Date: Thu, 4 May 2017 12:18:27 +0300 [thread overview]
Message-ID: <20170504091827.6yzmttjf2kxeen4l@intel.com> (raw)
In-Reply-To: <72bacff5-5213-b114-ebf4-6e3fe7284bdc@linux.vnet.ibm.com>
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
prev parent reply other threads:[~2017-05-04 9:19 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-28 13:02 [PATCH v2 0/3] Extend the vTPM proxy driver to pass locality to emulator Stefan Berger
2017-04-28 13:02 ` [PATCH v2 1/3] tpm: vtpm_proxy: Add ioctl to get supported flags Stefan Berger
2017-05-03 22:31 ` Jarkko Sakkinen
2017-04-28 13:02 ` [PATCH v2 2/3] tpm: vtpm_proxy: Implement request_locality Stefan Berger
2017-04-28 13:02 ` [PATCH v2 3/3] tpm: vtpm_proxy: Add ioctl to request locality prepended to command Stefan Berger
2017-04-29 7:02 ` kbuild test robot
2017-05-03 22:37 ` Jarkko Sakkinen
2017-05-03 23:40 ` Stefan Berger
2017-05-04 9:17 ` Jarkko Sakkinen
2017-05-04 11:14 ` Stefan Berger
2017-05-04 18:40 ` Jarkko Sakkinen
2017-05-04 20:03 ` Stefan Berger
2017-05-08 23:43 ` Jarkko Sakkinen
2017-05-09 15:49 ` Stefan Berger
2017-05-10 12:47 ` Jarkko Sakkinen
2017-05-10 13:20 ` Stefan Berger
2017-05-10 18:33 ` Jarkko Sakkinen
2017-04-29 11:58 ` [PATCH v2 0/3] Extend the vTPM proxy driver to pass locality to emulator Jarkko Sakkinen
2017-05-03 22:38 ` Jarkko Sakkinen
2017-05-03 23:42 ` Stefan Berger
2017-05-04 9:18 ` Jarkko Sakkinen [this message]
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