From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: Stefan Berger <stefanb-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
Cc: dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org
Subject: Re: [PATCH v5 4/5] Initialize TPM and get durations and timeouts
Date: Tue, 9 Feb 2016 11:01:52 -0700 [thread overview]
Message-ID: <20160209180152.GA17475@obsidianresearch.com> (raw)
In-Reply-To: <201602091745.u19HjeEv001740-nNA/7dmquNI+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
On Tue, Feb 09, 2016 at 12:45:37PM -0500, Stefan Berger wrote:
> And how do we unroll if tpm_chip_register fails? We just close the fd that we
> gave to user space?
Arrange for the fd to become permanently readable and read returns
error, user space will close the fd.
> I also don't see why it is a better solution than what I have here now:
>
> https://github.com/stefanberger/linux/commit/
> 954c7dece4a5c44525ca07a9569dc2f3b2b3d174
As I've said, this mucks up where we want to go with the core code,
and breaks our current invariants - the TPM hardware must be fully
operational before tpm_register is called.
Jason
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next prev parent reply other threads:[~2016-02-09 18:01 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-08 19:27 [PATCH v5 0/5] Multi-instance vTPM driver Stefan Berger
[not found] ` <1454959628-30582-1-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-02-08 19:27 ` [PATCH v5 1/5] Implement tpm_chip_free Stefan Berger
[not found] ` <1454959628-30582-2-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-02-09 5:28 ` Jason Gunthorpe
2016-02-08 19:27 ` [PATCH v5 2/5] Implement driver for supporting multiple emulated TPMs Stefan Berger
2016-02-08 19:27 ` [PATCH v5 3/5] Make tpm_startup() available Stefan Berger
[not found] ` <1454959628-30582-4-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-02-09 5:29 ` Jason Gunthorpe
[not found] ` <20160209052957.GC12657-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-09 11:22 ` Stefan Berger
2016-02-08 19:27 ` [PATCH v5 4/5] Initialize TPM and get durations and timeouts Stefan Berger
[not found] ` <1454959628-30582-5-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-02-09 5:33 ` Jason Gunthorpe
[not found] ` <20160209053323.GD12657-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-09 16:19 ` Stefan Berger
[not found] ` <201602091626.u19GQpga021574@d01av02.pok.ibm.com>
[not found] ` <201602091626.u19GQpga021574-prK0F/7GlgzImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-09 16:52 ` Jason Gunthorpe
[not found] ` <201602091745.u19HjeEv001740@d03av02.boulder.ibm.com>
[not found] ` <201602091745.u19HjeEv001740-nNA/7dmquNI+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-09 18:01 ` Jason Gunthorpe [this message]
[not found] ` <20160209180152.GA17475-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-09 18:11 ` Stefan Berger
[not found] ` <201602091812.u19ICTww018943@d03av01.boulder.ibm.com>
[not found] ` <201602091812.u19ICTww018943-Rn83F4s8Lwc+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-09 18:20 ` Jason Gunthorpe
[not found] ` <20160209182013.GA19018-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-09 19:22 ` Stefan Berger
[not found] ` <201602091922.u19JMQ6r025254@d03av05.boulder.ibm.com>
[not found] ` <201602091922.u19JMQ6r025254-3MP/CPU4Muo+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-09 19:36 ` Jason Gunthorpe
[not found] ` <20160209165228.GA14611-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-09 17:45 ` Stefan Berger
2016-02-10 3:56 ` Jarkko Sakkinen
[not found] ` <20160210035620.GB7161-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-02-10 5:15 ` Stefan Berger
[not found] ` <201602100515.u1A5FonT015847@d03av04.boulder.ibm.com>
[not found] ` <201602100515.u1A5FonT015847-2xHzGjyANq4+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-10 8:12 ` Jarkko Sakkinen
[not found] ` <201602100515.u1A5FpFi002736@d03av02.boulder.ibm.com>
[not found] ` <201602100515.u1A5FpFi002736-nNA/7dmquNI+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-10 16:28 ` Jason Gunthorpe
[not found] ` <20160210162809.GB20730-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-10 21:45 ` Stefan Berger
[not found] ` <201602102145.u1ALjSAs001597@d03av04.boulder.ibm.com>
[not found] ` <201602102145.u1ALjSAs001597-2xHzGjyANq4+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-10 22:23 ` Jason Gunthorpe
[not found] ` <20160210222313.GA7047-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-11 0:38 ` Stefan Berger
[not found] ` <201602110038.u1B0cuE0030670@d03av05.boulder.ibm.com>
[not found] ` <201602110038.u1B0cuE0030670-3MP/CPU4Muo+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-11 7:04 ` Jarkko Sakkinen
[not found] ` <20160211070426.GB9307-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-02-11 15:24 ` Stefan Berger
[not found] ` <201602111521.u1BFLS3f007520-8DuMPbUlb4HImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-11 16:51 ` Stefan Berger
[not found] ` <201602111534.u1BFYvRs019573@d01av03.pok.ibm.com>
[not found] ` <201602111534.u1BFYvRs019573-CUdSWdNILC7ImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-11 18:12 ` Jason Gunthorpe
[not found] ` <20160211181208.GA6285-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-11 19:10 ` Stefan Berger
[not found] ` <201602111911.u1BJB2nK017410@d01av03.pok.ibm.com>
[not found] ` <201602111911.u1BJB2nK017410-CUdSWdNILC7ImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-11 19:48 ` Jason Gunthorpe
[not found] ` <20160211194810.GA24211-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-11 22:10 ` Stefan Berger
[not found] ` <201602112210.u1BMAYPe015452@d03av01.boulder.ibm.com>
[not found] ` <201602112210.u1BMAYPe015452-Rn83F4s8Lwc+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-11 22:18 ` Jason Gunthorpe
[not found] ` <20160211221822.GA16304-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-11 22:26 ` Stefan Berger
[not found] ` <201602112226.u1BMQZ59031657@d01av02.pok.ibm.com>
[not found] ` <201602112226.u1BMQZ59031657-prK0F/7GlgzImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-11 23:56 ` Jason Gunthorpe
[not found] ` <20160211235611.GB16304-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-12 3:56 ` Stefan Berger
[not found] ` <201602120356.u1C3usEe002034-2xHzGjyANq4+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-12 18:13 ` Stefan Berger
[not found] ` <201602121813.u1CIDu4O015272@d01av01.pok.ibm.com>
[not found] ` <201602121813.u1CIDu4O015272-4ZtxiNBBw+3ImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-12 18:34 ` Jason Gunthorpe
[not found] ` <20160212183415.GA4289-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-14 6:37 ` Stefan Berger
[not found] ` <201602140637.u1E6baNX028563-2xHzGjyANq4+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-16 16:44 ` Stefan Berger
[not found] ` <201602161648.u1GGmdZv000468@d01av03.pok.ibm.com>
[not found] ` <201602161648.u1GGmdZv000468-CUdSWdNILC7ImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-16 18:00 ` Jason Gunthorpe
[not found] ` <20160216180028.GA4967-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-16 19:26 ` Stefan Berger
[not found] ` <201602161927.u1GJRJL6016216@d01av01.pok.ibm.com>
[not found] ` <201602161927.u1GJRJL6016216-4ZtxiNBBw+3ImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-17 4:47 ` Jason Gunthorpe
[not found] ` <20160217044750.GB25049-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-18 3:52 ` Stefan Berger
[not found] ` <201602120353.u1C3rYif023135@d01av05.pok.ibm.com>
[not found] ` <201602120353.u1C3rYif023135-8DuMPbUlb4HImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-12 18:40 ` Jason Gunthorpe
[not found] ` <20160212184051.GB4289-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-12 20:31 ` Stefan Berger
[not found] ` <201602122031.u1CKVIOp028400@d03av03.boulder.ibm.com>
[not found] ` <201602122031.u1CKVIOp028400-MijUUJkLaQs+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-12 20:39 ` Jason Gunthorpe
[not found] ` <20160212203956.GB10540-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-12 20:44 ` Stefan Berger
[not found] ` <201602122044.u1CKiMbR023495@d03av03.boulder.ibm.com>
[not found] ` <201602122044.u1CKiMbR023495-MijUUJkLaQs+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-12 21:15 ` Jason Gunthorpe
[not found] ` <20160212211538.GA20737-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-12 22:23 ` Stefan Berger
[not found] ` <201602122223.u1CMNJXl023711-4ZtxiNBBw+3ImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-12 22:47 ` Stefan Berger
[not found] ` <201602122247.u1CMlFni023527@d03av04.boulder.ibm.com>
[not found] ` <201602122247.u1CMlFni023527-2xHzGjyANq4+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-12 23:19 ` Jason Gunthorpe
[not found] ` <201602122223.u1CMNKL2004615@d03av02.boulder.ibm.com>
[not found] ` <201602122223.u1CMNKL2004615-nNA/7dmquNI+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-12 22:46 ` Jason Gunthorpe
[not found] ` <20160212224642.GA4781-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-12 23:14 ` Stefan Berger
[not found] ` <201602122314.u1CNEk6P028695@d01av01.pok.ibm.com>
[not found] ` <201602122314.u1CNEk6P028695-4ZtxiNBBw+3ImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-12 23:21 ` Jason Gunthorpe
2016-02-08 19:27 ` [PATCH v5 5/5] A test program for vTPM device creation Stefan Berger
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