From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: Thiebaud Weksteen <tweek@google.com>
Cc: linux-efi@vger.kernel.org, ard.biesheuvel@linaro.org,
matt@codeblueprint.co.uk, linux-kernel@vger.kernel.org,
mjg59@google.com, tpmdd-devel@lists.sourceforge.net,
peterhuewe@gmx.de, jgunthorpe@obsidianresearch.com,
tpmdd@selhorst.net
Subject: Re: [PATCH v2 0/3] Call GetEventLog before ExitBootServices
Date: Wed, 13 Sep 2017 11:59:30 -0700 [thread overview]
Message-ID: <20170913185930.ntquiechi44l35ht@linux.intel.com> (raw)
In-Reply-To: <20170911100022.7251-1-tweek@google.com>
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 +-
I think these filenames are just awful. Now that you are introducing
completely a new file, it would make sense rename these as
* tpm_eventlog_acpi.c
* tpm_eventlog_efi.c
* tpm_eventlog_of.c
Please wait for further review comments before sending a refined patch
set. Please have renames for tpm_acpi.c and tpm_of.c in its own commit
before introducing other changes.
/Jarkko
next prev parent reply other threads:[~2017-09-13 19:00 UTC|newest]
Thread overview: 25+ 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
2017-09-13 14:49 ` kbuild test robot
2017-09-14 10:24 ` [tpmdd-devel] " Javier Martinez Canillas
2017-09-18 12:11 ` Thiebaud Weksteen
2017-09-18 12:49 ` Javier Martinez Canillas
2017-09-14 18:43 ` Jarkko Sakkinen
2017-09-14 18:48 ` Matthew Garrett
2017-09-14 19:02 ` Jarkko Sakkinen
2017-09-15 4:06 ` Jarkko Sakkinen
2017-09-18 12:28 ` Thiebaud Weksteen
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
2017-09-11 16:47 ` Jason Gunthorpe
2017-09-12 8:48 ` Thiebaud Weksteen
2017-09-18 12:38 ` Thiebaud Weksteen
2017-09-18 16:28 ` Jason Gunthorpe
2017-09-13 16:27 ` kbuild test robot
2017-09-13 16:43 ` Thiebaud Weksteen
2017-09-14 18:47 ` Jarkko Sakkinen
2017-09-18 12:33 ` Thiebaud Weksteen
2017-09-13 18:59 ` Jarkko Sakkinen [this message]
2017-09-14 10:21 ` [tpmdd-devel] [PATCH v2 0/3] Call GetEventLog before ExitBootServices Javier Martinez Canillas
2017-11-03 15:27 ` Jarkko Sakkinen
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