From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jarkko Sakkinen Subject: Re: [PATCH v4 00/10] Multi-instance vTPM driver Date: Mon, 29 Feb 2016 22:48:46 +0200 Message-ID: <20160229204846.GA27210@intel.com> References: <1456766996-9300-1-git-send-email-stefanb@linux.vnet.ibm.com> <20160229202401.GA26296@intel.com> <201602292030.u1TKUgSu010507@d01av03.pok.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <201602292030.u1TKUgSu010507-CUdSWdNILC7ImUpY6SP3GEEOCMrvLtNR@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tpmdd-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: Stefan Berger Cc: tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: tpmdd-devel@lists.sourceforge.net On Mon, Feb 29, 2016 at 03:30:35PM -0500, Stefan Berger wrote: > Jarkko Sakkinen wrote on 02/29/2016 > 03:24:01 PM: > > > > > 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. > > Sorry for that. I followed your suggestion about the flags in the > vtpm-driver but moved the ops related to flag modifications under the > mutex lock. Thanks and no worries. > Stefan /Jarkko ------------------------------------------------------------------------------ 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