From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jarkko Sakkinen Subject: Re: [RFC PATCH 3/4] Implement driver for supporting multiple emulated TPMs Date: Tue, 26 Jan 2016 18:36:03 -0800 Message-ID: <20160127023603.GA23863@intel.com> References: <1452787318-29610-1-git-send-email-stefanb@us.ibm.com> <1452787318-29610-4-git-send-email-stefanb@us.ibm.com> <20160119235107.GA4307@obsidianresearch.com> <201601201439.u0KEdGB9031710@d01av04.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: <201601201439.u0KEdGB9031710-YREtIfBy6dDImUpY6SP3GEEOCMrvLtNR@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: dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org List-Id: tpmdd-devel@lists.sourceforge.net On Wed, Jan 20, 2016 at 09:39:09AM -0500, Stefan Berger wrote: > > Presumably some namespace magic can be used to make them show up as > > tpm0 in a container? > > The magic is to have the container management stack create the device pair. > From the ioctl it learns the name of the devices that were created and it then > finds out about the major/minor number of the created device and have /dev/tpm0 > with that major/minor created in the container's /dev directory. Is the device created before container launched? I would assume that this would work user space accesses through /dev/tpm0. I don't know how this would work for kernel clients. /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=267308311&iu=/4140