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From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: "Winkler, Tomas" <tomas.winkler@intel.com>
Cc: Stefan Berger <stefanb@linux.ibm.com>,
	"linux-integrity@vger.kernel.org"
	<linux-integrity@vger.kernel.org>,
	"linux-security-module@vger.kernel.org" 
	<linux-security-module@vger.kernel.org>,
	Peter Huewe <PeterHuewe@gmx.de>, Jason Gunthorpe <jgg@ziepe.ca>,
	"Struk, Tadeusz" <tadeusz.struk@intel.com>,
	Stefan Berger <stefanb@linux.vnet.ibm.com>,
	Nayna Jain <nayna@linux.ibm.com>
Subject: Re: [PATCH v10 00/17] Remove nested TPM operations
Date: Tue, 29 Jan 2019 14:33:09 +0200	[thread overview]
Message-ID: <20190129123309.GB12883@linux.intel.com> (raw)
In-Reply-To: <5B8DA87D05A7694D9FA63FD143655C1B9DA818C6@hasmsx108.ger.corp.intel.com>

On Wed, Jan 23, 2019 at 06:59:48PM +0000, Winkler, Tomas wrote:
> > 
> > On 1/23/19 1:20 PM, Jarkko Sakkinen wrote:
> > > On Wed, Jan 16, 2019 at 11:23:25PM +0200, Jarkko Sakkinen wrote:
> > >> Make the changes necessary to detach TPM space code and TPM
> > >> activation code out of the tpm_transmit() flow because of both of
> > >> these can cause nested tpm_transmit() calls. The nesteds calls make
> > >> the whole flow hard to maintain, and thus, it is better to just fix
> > >> things now before this turns into a bigger mess.
> > > Any reasons not to merge this soon?
> > 
> > I suppose v10 hasn't changed anything signinficat. So, not from my perspective.
> > Were you waiting for more Reviewed-by's?
> > 
> I'm okay, in theory I've cleaned all my concern regarding idle and
> locality . I'm just want do few more tests on Sunday.

I'm in no rush merging this piece of code, as long as it gets merged
at some point. Thomas, can you take a look at the PTT issue we are
having.

See my discussion with Linus with subject "Getting weird TPM error after
rebasing my tree to security/next-general". You have better knowledge
of the internals so I would really like to hear your feedback on that.
We need to get a fix for that for v5.0.

/Jarkko

  reply	other threads:[~2019-01-29 12:33 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-16 21:23 [PATCH v10 00/17] Remove nested TPM operations Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 01/17] tpm: use tpm_buf in tpm_transmit_cmd() as the IO parameter Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 02/17] tpm: fix invalid return value in pubek_show() Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 03/17] tpm: return 0 from pcrs_show() when tpm1_pcr_read() fails Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 04/17] tpm: print tpm2_commit_space() error inside tpm2_commit_space() Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 05/17] tpm: declare struct tpm_header Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 06/17] tpm: access command header through struct in tpm_try_transmit() Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 07/17] tpm: encapsulate tpm_dev_transmit() Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 08/17] tpm: call tpm2_flush_space() on error in tpm_try_transmit() Jarkko Sakkinen
2019-01-29 17:06   ` James Bottomley
2019-01-29 18:53     ` Jarkko Sakkinen
2019-01-29 19:02       ` James Bottomley
2019-01-29 21:11         ` Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 09/17] tpm: clean up tpm_try_transmit() error handling flow Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 10/17] tpm: move tpm_validate_commmand() to tpm2-space.c Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 11/17] tpm: move TPM space code out of tpm_transmit() Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 12/17] tpm: remove @space from tpm_transmit() Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 13/17] tpm: use tpm_try_get_ops() in tpm-sysfs.c Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 14/17] tpm: remove TPM_TRANSMIT_UNLOCKED flag Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 15/17] tpm: introduce tpm_chip_start() and tpm_chip_stop() Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 16/17] tpm: take TPM chip power gating out of tpm_transmit() Jarkko Sakkinen
2019-01-16 21:23 ` [PATCH v10 17/17] tpm: remove @flags from tpm_transmit() Jarkko Sakkinen
2019-01-23 18:20 ` [PATCH v10 00/17] Remove nested TPM operations Jarkko Sakkinen
2019-01-23 18:53   ` Stefan Berger
2019-01-23 18:59     ` Winkler, Tomas
2019-01-29 12:33       ` Jarkko Sakkinen [this message]
2019-01-29 14:16         ` Winkler, Tomas
2019-01-29 18:30           ` Jarkko Sakkinen
2019-01-29 12:31     ` Jarkko Sakkinen
2019-01-31  0:28       ` James Bottomley
2019-01-31 16:11         ` Jarkko Sakkinen
2019-01-25  1:05 ` Jerry Snitselaar
2019-01-29 12:33   ` Jarkko Sakkinen

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