Re: [PATCH v4 00/10] Multi-instance vTPM driver

[Jarkko Sakkinen <jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>]

On Mon, Feb 29, 2016 at 12:29:46PM -0500, Stefan Berger wrote:
> The following series of patches implements a multi-instance vTPM driver
> that can dynamically create TPM 'server' and client device pairs.
> 
> Using an ioctl on the provided /dev/vtpmx, a client-side vTPM device
> and a server side file descriptor is created. The file descriptor must
> be passed to a TPM emulator. The device driver will initialize the
> emulated TPM using TPM 1.2 or TPM 2 startup commands and it will read
> the command durations from the device in case of a TPM 1.2. The choice
> of emulated TPM device (1.2 or 2) must be provided with a flag in
> the ioctl.
> 
> The driver is based on James Morris's 'next' branch and uses several
> recently posted patches from Jason and Jarkko. Some of these patches
> needed to rebased on top of this tree.

It is kind of hard to follow what has happend between patch set
versions if you don't have a changelog in the cover letter.

/Jarkko

> 
>    Stefan
> 
> 
> Jason Gunthorpe (4):
>   tpm: Get rid of chip->pdev
>   tpm: Get rid of devname
>   tpm: Provide strong locking for device removal
>   tpm: Split out the devm stuff from tpmm_chip_alloc
> 
> Stefan Berger (6):
>   tpm: Get rid of module locking
>   tpm: Replace device number bitmap with IDR
>   tpm: Introduce TPM_CHIP_FLAG_VIRTUAL
>   tpm: Driver for supporting multiple emulated TPMs
>   tpm: Initialize TPM and get durations and timeouts
>   A test program for vTPM device creation
> 
>  drivers/char/tpm/Kconfig            |  10 +
>  drivers/char/tpm/Makefile           |   1 +
>  drivers/char/tpm/tpm-chip.c         | 221 +++++++++----
>  drivers/char/tpm/tpm-dev.c          |  15 +-
>  drivers/char/tpm/tpm-interface.c    |  50 +--
>  drivers/char/tpm/tpm-sysfs.c        |  22 +-
>  drivers/char/tpm/tpm-vtpm.c         | 613 ++++++++++++++++++++++++++++++++++++
>  drivers/char/tpm/tpm.h              |  30 +-
>  drivers/char/tpm/tpm2-cmd.c         |   8 +-
>  drivers/char/tpm/tpm_atmel.c        |  14 +-
>  drivers/char/tpm/tpm_eventlog.c     |   2 +-
>  drivers/char/tpm/tpm_eventlog.h     |   2 +-
>  drivers/char/tpm/tpm_i2c_atmel.c    |  16 +-
>  drivers/char/tpm/tpm_i2c_infineon.c |   6 +-
>  drivers/char/tpm/tpm_i2c_nuvoton.c  |  24 +-
>  drivers/char/tpm/tpm_infineon.c     |  22 +-
>  drivers/char/tpm/tpm_nsc.c          |  20 +-
>  drivers/char/tpm/tpm_tis.c          |  18 +-
>  include/uapi/linux/Kbuild           |   1 +
>  include/uapi/linux/vtpm.h           |  41 +++
>  vtpmctrl.c                          | 163 ++++++++++
>  21 files changed, 1120 insertions(+), 179 deletions(-)
>  create mode 100644 drivers/char/tpm/tpm-vtpm.c
>  create mode 100644 include/uapi/linux/vtpm.h
>  create mode 100644 vtpmctrl.c
> 
> -- 
> 2.4.3
> 

------------------------------------------------------------------------------
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140