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From: Jarkko Sakkinen <jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
To: Thiebaud Weksteen <tweek-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
Cc: linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
	matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	mjg59-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
	tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
	peterhuewe-Mmb7MZpHnFY@public.gmane.org,
	jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org,
	tpmdd-yWjUBOtONefk1uMJSBkQmQ@public.gmane.org
Subject: Re: [PATCH v2 0/3] Call GetEventLog before ExitBootServices
Date: Fri, 3 Nov 2017 17:27:03 +0200	[thread overview]
Message-ID: <20171103152703.f224mvtg3luubqa3@linux.intel.com> (raw)
In-Reply-To: <20170911100022.7251-1-tweek-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>

On Mon, Sep 11, 2017 at 12:00:19PM +0200, Thiebaud Weksteen wrote:
> With TPM 1.2, the ACPI table ("TCPA") has two fields to recover the Event Log
> Area (LAML and LASA). These logs are useful to understand and rebuild the
> final values of PCRs.
> 
> With TPM 2.0, the ACPI table ("TPM2") does not contain these fields anymore.
> The recommended method is now to call the GetEventLog EFI protocol before
> ExitBootServices.
> 
> Implement this method within the EFI stub and create copy of the logs for the
> TPM device. This will create /sys/kernel/security/tpm0/binary_bios_measurements
> for TPM 2.0 devices (similarly to the current behaviour for TPM 1.2 devices).
> 
> -------------------------------------------------------------------------------
> 
> Patchset Changelog:
> 
> Version 2:
> - Move tpm_eventlog.h to top include directory, add commit for this.
> - Use EFI_LOADER_DATA to store the configuration table
> - Whitespace and new lines fixes
> 
> 
> Thiebaud Weksteen (3):
>   tpm: move tpm_eventlog.h outside of drivers folder
>   efi: call get_event_log before ExitBootServices
>   tpm: parse TPM event logs based on EFI table
> 
>  arch/x86/boot/compressed/eboot.c                   |  1 +
>  drivers/char/tpm/Makefile                          |  2 +-
>  drivers/char/tpm/tpm-chip.c                        |  3 +-
>  drivers/char/tpm/tpm-interface.c                   |  2 +-
>  drivers/char/tpm/tpm.h                             | 35 ++++++++--
>  drivers/char/tpm/tpm1_eventlog.c                   | 17 +++--
>  drivers/char/tpm/tpm2_eventlog.c                   |  2 +-
>  drivers/char/tpm/tpm_acpi.c                        |  2 +-
>  drivers/char/tpm/tpm_efi.c                         | 66 ++++++++++++++++++
>  drivers/char/tpm/tpm_of.c                          |  2 +-
>  drivers/firmware/efi/Makefile                      |  2 +-
>  drivers/firmware/efi/efi.c                         |  4 ++
>  drivers/firmware/efi/libstub/Makefile              |  3 +-
>  drivers/firmware/efi/libstub/tpm.c                 | 81 ++++++++++++++++++++++
>  drivers/firmware/efi/tpm.c                         | 39 +++++++++++
>  include/linux/efi.h                                | 50 +++++++++++++
>  {drivers/char/tpm => include/linux}/tpm_eventlog.h | 32 ++-------
>  17 files changed, 301 insertions(+), 42 deletions(-)
>  create mode 100644 drivers/char/tpm/tpm_efi.c
>  create mode 100644 drivers/firmware/efi/tpm.c
>  rename {drivers/char/tpm => include/linux}/tpm_eventlog.h (77%)
> 
> -- 
> 2.14.1.581.gf28d330327-goog
> 

Tested-by: Jarkko Sakkinen <jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen-VuQAYsv1560T/Km9Ha9FPA@public.gmane.org>

/Jarkko

  parent reply	other threads:[~2017-11-03 15:27 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-11 10:00 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
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 [this message]
2017-09-14 10:21 ` [tpmdd-devel] " Javier Martinez Canillas

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