[PATCH 0/3] tpm: Support boot measurements

Eddie James eajames at linux.ibm.com
Wed Jan 4 15:55:06 CET 2023


On 1/4/23 01:47, Ilias Apalodimas wrote:
> Hi Eddie,
> Thanks for the patch
>
> Looking at the patch there's a lot of code duplication with
> lib/efi_loader/efi_tcg2.c.
> Any reason why we aren't reusing that ?


Hi,

Well the EFI code can't be used directly without configuring to include 
the EFI subsystem and exporting a bunch of those functions in a header 
file somewhere, so I added the functions in the generic tpm librrary. 
Now it's a matter of doing the work to use the generic functions in the 
EFI system. I can do that in this series if necesssary, I just haven't 
gotten to it.

Thanks,

Eddie


>
> Regards
> /Ilias
>
> On Tue, 3 Jan 2023 at 22:42, Eddie James <eajames at linux.ibm.com> wrote:
>> This series adds support for measuring the boot images more generically
>> than the existing EFI support. The series includes optional measurement
>> from the bootm command.
>> Eventually the EFI code could be refactored to use the generic functions.
>>
>> Eddie James (3):
>>    tpm: Fix spelling for tpmu_ha union
>>    tpm: Support boot measurements
>>    bootm: Support boot measurement
>>
>>   boot/bootm.c       |  53 ++++
>>   cmd/bootm.c        |   2 +
>>   common/Kconfig     |   6 +
>>   include/efi_tcg2.h |  44 ---
>>   include/image.h    |   1 +
>>   include/tpm-v2.h   | 139 ++++++++-
>>   lib/tpm-v2.c       | 700 +++++++++++++++++++++++++++++++++++++++++++++
>>   7 files changed, 899 insertions(+), 46 deletions(-)
>>
>> --
>> 2.31.1
>>


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