linux-kernel - Re: [PATCH v3 4/5] efi: call get_event

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Date:   Tue, 26 Sep 2017 14:49:31 +0200
From:   Thiebaud Weksteen <tweek@...gle.com>
To:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:     linux-efi@...r.kernel.org, linux-integrity@...r.kernel.org,
        tpmdd-devel@...ts.sourceforge.net,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Matt Fleming <matt@...eblueprint.co.uk>,
        linux-kernel@...r.kernel.org, Matthew Garrett <mjg59@...gle.com>,
        peterhuewe@....de,
        Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
        tpmdd@...horst.net
Subject: Re: [PATCH v3 4/5] efi: call get_event_log before ExitBootServices

On Tue, Sep 26, 2017 at 1:45 PM, Jarkko Sakkinen
<jarkko.sakkinen@...ux.intel.com> wrote:
> On Wed, Sep 20, 2017 at 10:13:39AM +0200, Thiebaud Weksteen wrote:
>> With TPM 2.0 specification, the event logs may only be accessible by
>> calling an EFI Boot Service. Modify the EFI stub to copy the log area to
>> a new Linux-specific EFI configuration table so it remains accessible
>> once booted.
>>
>> When calling this service, it is possible to specify the expected format
>> of the logs: TPM 1.2 (SHA1) or TPM 2.0 ("Crypto Agile"). For now, only the
>> first format is retrieved.
>>
>> Signed-off-by: Thiebaud Weksteen <tweek@...gle.com>
>
> Does not apply:
>
> Applying: tpm: move tpm_eventlog.h outside of drivers folder
> Applying: tpm: rename event log provider files
> Applying: tpm: add event log format version
> Applying: efi: call get_event_log before ExitBootServices
> error: sha1 information is lacking or useless (drivers/firmware/efi/efi.c).
> error: could not build fake ancestor
> Patch failed at 0004 efi: call get_event_log before ExitBootServices
> The copy of the patch that failed is found in: .git/rebase-apply/patch
> When you have resolved this problem, run "git am --continue".
> If you prefer to skip this patch, run "git am --skip" instead.
> To restore the original branch and stop patching, run "git am --abort".
>
> Just rebased my tree to the latest security-next.

It applies fine on security/next-general which is more up-to-date.
(security/next does not include
ccc829ba3624beb9a703fc995d016b836d9eead8 on which this patch set is
based)

>
> /Jarkko