From: Ken Goldman <kgoldman-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
To: tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: Question on Linux TSS architecture design (kernel vs. user space access)
Date: Wed, 23 Dec 2015 10:02:05 -0500 [thread overview]
Message-ID: <n5ed19$pqo$1@ger.gmane.org> (raw)
In-Reply-To: <20151222212348.GB9461-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
On 12/22/2015 4:23 PM, Jason Gunthorpe wrote:
>
> I'd be alarmed if it is that much. The TPM format is very amenable to
> doing this, a well designed table driven approach should be quite
> small on the rpc handling side. The key is to not overthink/overdesign
> it too much.
Let's expand on "alarmed". If that just means you're surprised, OK. If
it means the code will be rejected based solely on the size, please tell
us now.
> I have an entire tpm1.2 userpace in less than 2kloc, so I struggle to
> see why a simple resource manager would be so big.
>
> 1-2kloc is not a big deal kernel wise if it is well written and in the
> kernel style.
Similar question. Let's assume it's 5 kloc, or even more. Can it be
accepted or not?
I don't want to go down the TPM 1.2 path, where IBM funded several
projects and they were all rejected, not after any technical evaluation,
but simply based on LOC.
------------------------------------------------------------------------------
next prev parent reply other threads:[~2015-12-23 15:02 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-13 15:42 [PATCH v2 0/3] TPM 2.0 trusted key features for v4.5 Jarkko Sakkinen
2015-12-13 15:42 ` Jarkko Sakkinen
2015-12-13 15:42 ` Jarkko Sakkinen
2015-12-13 15:42 ` [PATCH v2 1/3] keys, trusted: fix: *do not* allow duplicate key options Jarkko Sakkinen
2015-12-14 13:46 ` Mimi Zohar
2015-12-14 14:54 ` Jarkko Sakkinen
2015-12-13 15:42 ` [PATCH v2 2/3] keys, trusted: select hash algorithm for TPM2 chips Jarkko Sakkinen
2015-12-13 15:42 ` Jarkko Sakkinen
2015-12-13 15:42 ` [PATCH v2 3/3] keys, trusted: seal with a TPM2 authorization policy Jarkko Sakkinen
2015-12-14 13:49 ` Mimi Zohar
2015-12-14 14:56 ` Jarkko Sakkinen
[not found] ` <20151214095830.GA21291@intel.com>
[not found] ` <C5A28EF7B98F574C85C70238C8E9ECC04E682BF197@ABGEX74E.FSC.NET>
[not found] ` <20151214112501.GA26100@intel.com>
[not found] ` <C5A28EF7B98F574C85C70238C8E9ECC04E682BF19D@ABGEX74E.FSC.NET>
[not found] ` <20151215233237.GA31965@obsidianresearch.com>
[not found] ` <201512161652.tBGGqWPG019442@d03av04.boulder.ibm.com>
[not found] ` <20151216171633.GB32594@obsidianresearch.com>
[not found] ` <201512161721.tBGHLqXh009986@d03av03.boulder.ibm.com>
[not found] ` <20151216174523.GC32594@obsidianresearch.com>
[not found] ` <201512161804.tBGI47vu000331@d01av02.pok.ibm.com>
[not found] ` <C5A28EF7B98F574C85C70238C8E9ECC04E69407545@ABGEX74E.FSC.NET>
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA5864641@EXCH2010A.sit.fraunhofer.de>
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA5864641-wI35/lLZEdT5yyJIIHUSGGSU2VBt9E6NG9Ur7JDdleE@public.gmane.org>
2015-12-18 0:57 ` Question on Linux TSS architecture design (kernel vs. user space access) Jason Gunthorpe
[not found] ` <201512171523.tBHFNlJ6013434@d03av03.boulder.ibm.com>
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA58648F1@EXCH2010A.sit.fraunhofer.de>
[not found] ` <201512171620.tBHGK3GE030569@d03av04.boulder.ibm.com>
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA586493C@EXCH2010A.sit.fraunhofer.de>
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA586493C-wI35/lLZEdT5yyJIIHUSGGSU2VBt9E6NG9Ur7JDdleE@public.gmane.org>
2015-12-18 10:06 ` Wilck, Martin
[not found] ` <C5A28EF7B98F574C85C70238C8E9ECC04E6940754C-bIoXcEM4pvRAuK1PVaBULA@public.gmane.org>
2015-12-18 10:51 ` Jarkko Sakkinen
[not found] ` <20151218105148.GA12882-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-12-18 10:53 ` Jarkko Sakkinen
[not found] ` <20151218105323.GB12882-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-12-18 11:09 ` Wilck, Martin
[not found] ` <C5A28EF7B98F574C85C70238C8E9ECC04E6940754D-bIoXcEM4pvRAuK1PVaBULA@public.gmane.org>
2015-12-18 11:41 ` Jarkko Sakkinen
[not found] ` <20151218114131.GA3287-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-12-18 14:10 ` Ken Goldman
2015-12-21 13:22 ` Fuchs, Andreas
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA586A57C-wI35/lLZEdRyXeJKmmMAp2SU2VBt9E6NG9Ur7JDdleE@public.gmane.org>
2015-12-21 14:23 ` Stefan Berger
2015-12-22 21:23 ` Jason Gunthorpe
[not found] ` <20151222212348.GB9461-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-12-23 15:02 ` Ken Goldman [this message]
2015-12-24 11:42 ` Jarkko Sakkinen
[not found] ` <20151224114241.GA5119-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-12-24 15:09 ` Ken Goldman
2016-01-02 20:39 ` Jason Gunthorpe
[not found] ` <20160102203957.GA19490-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-01-03 13:53 ` Jarkko Sakkinen
[not found] ` <20160103135346.GA4047-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-01-04 16:22 ` Fuchs, Andreas
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA5877E95-wI35/lLZEdRyXeJKmmMAp2SU2VBt9E6NG9Ur7JDdleE@public.gmane.org>
2016-01-04 18:19 ` Jarkko Sakkinen
[not found] ` <20160104181915.GA15908-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-01-04 20:06 ` Mimi Zohar
2016-01-05 9:43 ` Fuchs, Andreas
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA58784A8-wI35/lLZEdRyXeJKmmMAp2SU2VBt9E6NG9Ur7JDdleE@public.gmane.org>
2016-01-05 13:13 ` Mimi Zohar
2016-01-05 17:39 ` Jason Gunthorpe
2015-12-22 6:59 ` Jarkko Sakkinen
[not found] ` <20151222065917.GB7867-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-01-04 16:07 ` Fuchs, Andreas
2016-01-07 21:07 ` TPM2 resource manager vendor specific commands Ken Goldman
[not found] ` <201512171533.tBHFXn35003792@d03av02.boulder.ibm.com>
[not found] ` <201512171533.tBHFXn35003792-nNA/7dmquNI+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2015-12-18 11:21 ` Question on Linux TSS architecture design (kernel vs. user space access) Wilck, Martin
[not found] ` <C5A28EF7B98F574C85C70238C8E9ECC04E6940754E-bIoXcEM4pvRAuK1PVaBULA@public.gmane.org>
2015-12-18 11:51 ` Jarkko Sakkinen
[not found] ` <20151218115137.GA4774-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-12-18 11:57 ` Jarkko Sakkinen
2015-12-18 13:40 ` Stefan Berger
[not found] ` <C5A28EF7B98F574C85C70238C8E9ECC04E69407545-bIoXcEM4pvRAuK1PVaBULA@public.gmane.org>
2015-12-18 15:03 ` Kenneth Goldman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='n5ed19$pqo$1@ger.gmane.org' \
--to=kgoldman-r/jw6+rmf7hqt0dzr+alfa@public.gmane.org \
--cc=tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.