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: Fri, 22 Jan 2016 14:01:11 +0200 Message-ID: <20160122120111.GA8279@intel.com> References: <201601201439.u0KEdFao027907@d03av05.boulder.ibm.com> <20160121011701.GA20361@obsidianresearch.com> <201601210301.u0L31h5r012187@d03av03.boulder.ibm.com> <20160121032115.GA26266@obsidianresearch.com> <201601210356.u0L3uP1n029818@d03av05.boulder.ibm.com> <20160121174243.GD3064@obsidianresearch.com> <201601211902.u0LJ2LbL001130@d03av01.boulder.ibm.com> <20160121193049.GA31938@obsidianresearch.com> <201601212151.u0LLpC93021986@d03av03.boulder.ibm.com> <20160121221040.GA1630@obsidianresearch.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20160121221040.GA1630-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tpmdd-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: Jason Gunthorpe Cc: dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: tpmdd-devel@lists.sourceforge.net On Thu, Jan 21, 2016 at 03:10:40PM -0700, Jason Gunthorpe wrote: > > The vTPM driver will only know about vtpm_dev->chip that it > > created and none of them is a hardware TPM. > > Right, controlfd implies that only vtpms could be shared to a IMA > namespace, which is a terrible API. This is another reason why > reserved is a terrible API. It's funny because for me the API looks robust, configurable and nice to use [1]. I could use it outside of virtualization space (I already mentioned two applications). Your criticism is for me way too abstract. I have hard time following it. This is a nice incremental step. By no means it's perfect but something that would satisfy a lot of users for things that they want do now (like me). [1] I've been still too busy to try this out in order to say the final word. > Jason /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