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From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
To: Thiebaud Weksteen <tweek@google.com>
Cc: Ashley Lai <ashleydlai@gmail.com>,
	Nayna Jain <nayna@linux.vnet.ibm.com>,
	linux-efi@vger.kernel.org,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Matt Fleming <matt@codeblueprint.co.uk>,
	linux-kernel@vger.kernel.org, Matthew Garrett <mjg59@google.com>,
	tpmdd-devel@lists.sourceforge.net, peterhuewe@gmx.de,
	Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
	tpmdd@selhorst.net
Subject: Re: [PATCH v2 3/3] tpm: parse TPM event logs based on EFI table
Date: Mon, 18 Sep 2017 10:28:14 -0600	[thread overview]
Message-ID: <20170918162814.GA32721@obsidianresearch.com> (raw)
In-Reply-To: <CA+zpnLe8hgSgBbjw8zF=pvykNo9mkVcyR65KY=vFckKf+XMb=Q@mail.gmail.com>

On Mon, Sep 18, 2017 at 02:38:03PM +0200, Thiebaud Weksteen wrote:
> On Tue, Sep 12, 2017 at 10:48 AM, Thiebaud Weksteen <tweek@google.com> wrote:
> > On Mon, Sep 11, 2017 at 10:47:50AM -0600, Jason Gunthorpe wrote:
> >> On Mon, Sep 11, 2017 at 12:00:22PM +0200, Thiebaud Weksteen wrote:
> >>
> >> >     chip->bin_log_seqops.chip = chip;
> >> > -   if (chip->flags & TPM_CHIP_FLAG_TPM2)
> >> > +
> >> > +   if (log_version == EFI_TCG2_EVENT_LOG_FORMAT_TCG_2 ||
> >> > +       (!log_version && (chip->flags & TPM_CHIP_FLAG_TPM2)))
> >> >             chip->bin_log_seqops.seqops =
> >> >                     &tpm2_binary_b_measurements_seqops;
> >>
> >> Lets have all the read_log_* versions return the postitive log_version
> >> and get rid of the chip->flags check here.
> >>
> >> ie Doesn't ACPI always return the TPM 1 version?
> >
> > That is my understanding. Ashley, Nayna, could you confirm the format
> > version expected by tpm_of? Could it be both?
> >
> 
> I've changed the returned code for ACPI but not for DeviceTree.
> Without confirmation for tpm_of, I am reluctant to modify the current
> behaviour.

Move the TPM_CHIP_FLAG_TPM2 check into tpm_of to keep the current behavior
but still return the code..

Jason

  reply	other threads:[~2017-09-18 16:28 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-11 10:00 [PATCH v2 0/3] Call GetEventLog before ExitBootServices Thiebaud Weksteen
2017-09-11 10:00 ` [PATCH v2 1/3] tpm: move tpm_eventlog.h outside of drivers folder Thiebaud Weksteen
2017-09-11 10:00 ` [PATCH v2 2/3] efi: call get_event_log before ExitBootServices Thiebaud Weksteen
     [not found]   ` <20170911100022.7251-3-tweek-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2017-09-13 14:49     ` kbuild test robot
     [not found]       ` <201709132252.uZyTCtDz%fengguang.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-09-13 16:28         ` Thiebaud Weksteen via tpmdd-devel
2017-09-14 10:24     ` [tpmdd-devel] " Javier Martinez Canillas
     [not found]       ` <1f25ebdc-ab90-517f-b580-991a7cb5e25a-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-09-18 12:11         ` Thiebaud Weksteen
2017-09-18 12:49           ` Javier Martinez Canillas
2017-09-14 18:43     ` Jarkko Sakkinen
     [not found]       ` <20170914184126.eevnstwq3i6fiq4j-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-09-14 18:48         ` Matthew Garrett
2017-09-14 19:02           ` Jarkko Sakkinen
     [not found]             ` <20170914190247.rrbdzdexjjywxipf-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-09-15  4:06               ` Jarkko Sakkinen
2017-09-18 12:28               ` Thiebaud Weksteen
     [not found]                 ` <CA+zpnLfs=DhW6kgbLV63_XzmKS7VnGGE0ecbFBZ0bu4wx3Jf+w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-09-18 17:56                   ` Jarkko Sakkinen
2017-09-11 10:00 ` [PATCH v2 3/3] tpm: parse TPM event logs based on EFI table Thiebaud Weksteen
     [not found]   ` <20170911100022.7251-4-tweek-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2017-09-11 16:47     ` Jason Gunthorpe
2017-09-12  8:48       ` Thiebaud Weksteen
     [not found]         ` <20170912084851.z3ednbeojawnyxk2-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2017-09-18 12:38           ` Thiebaud Weksteen
2017-09-18 16:28             ` Jason Gunthorpe [this message]
2017-09-13 16:27     ` kbuild test robot
     [not found]       ` <201709140034.ESdZA8H8%fengguang.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-09-13 16:43         ` Thiebaud Weksteen
2017-09-14 18:47   ` Jarkko Sakkinen
     [not found]     ` <20170914184732.uiypaz4yft777oc7-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-09-18 12:33       ` Thiebaud Weksteen
     [not found] ` <20170911100022.7251-1-tweek-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2017-09-13 18:59   ` [PATCH v2 0/3] Call GetEventLog before ExitBootServices Jarkko Sakkinen
2017-11-03 15:27   ` Jarkko Sakkinen
2017-09-14 10:21 ` [tpmdd-devel] " Javier Martinez Canillas

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