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Re: [PATCH v2 0/7] efi: Enhance capsule loader to support signed Quark images

From Jan Kiszka <jan.kiszka@siemens.com>
Newsgroups linux.kernel
Subject Re: [PATCH v2 0/7] efi: Enhance capsule loader to support signed Quark images
Date 2017-03-27 13:10 +0200
Message-ID <tpAH8-75T-11@gated-at.bofh.it> (permalink)
References <toBlT-4TS-1@gated-at.bofh.it> <tpAnM-6J9-33@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 2017-03-27 12:29, Bryan O'Donoghue wrote:
> 
> 
> On 24/03/17 17:34, Jan Kiszka wrote:
>> This addresses the review feedback provided on round 1, specifically
>> - refactored queue to keep the Quark mess in
>> - only check for CSH on Quark CPUs
>> - added some smaller cleanups of the capsule loader
>> - documented capsule header / linked to original code
>>
>> See last patch for the background of the series.
>>
>> The series has been tested on the Galileo Gen2, to exclude regressions,
>> with a firmware.cap with AND without security header and the SIMATIC
>> IOT2040 which requires the header because of its mandatory secure boot.
>>
>> Jan
>>
>> Jan Kiszka (7):
>>   efi/capsule: Fix return code on failing kmap/vmap
>>   efi/capsule: Remove pr_debug on ENOMEM or EFAULT
>>   efi/capsule: Clean up pr_err/info messages
>>   efi/capsule: Adjust return type of efi_capsule_setup_info
>>   efi/capsule: Prepare for loading images with security header
>>   efi/capsule: Factor out overloadable efi_capsule_identify_image
>>   efi/capsule: Add support for Quark security header
>>
>>  arch/x86/platform/efi/quirks.c        |  95 ++++++++++++++++++++++++
>>  drivers/firmware/efi/capsule-loader.c | 136
>> +++++++++++++++++++---------------
>>  drivers/firmware/efi/capsule.c        |  21 +++++-
>>  include/linux/efi.h                   |  19 +++++
>>  4 files changed, 208 insertions(+), 63 deletions(-)
>>
> 
> BTW,
> 
> Thanks for taking the time to remove the __func__ stuff all over the place.
> 
> I'll try to test this out for you. I found that the current BSP Intel is
> releasing has some sort of GUI that downloads an image to a board (which
> completely fails for me on the Galileo I have)... not sure if you have
> different results with the stuff from the Intel website but it's
> non-functional for me :(

I found the Galileo capsules *.cap in the jar archives of the Galileo
firmware update packages, and they work.
> 
> I'd like to suggest to you adding something to Documentation describing
> how to load and trigger a capsule update. For example on Quark you need
> to use the EFI reset method to cause capsule update to work.

cat /path/to/capsule.cap > /dev/efi_capsule_loader

The reset method is auto-adjusted by the kernel when an update is
pending. So firmware update is now seriously simple. But I can write a 2
or 3-lines readme if it's preferred.

> 
> Could you add a patch to your series for Documentation detailing:
> 
> 1. Entry criteria (needing to boot in EFI reset mode)
> 1. Description of loading a capsule
> 3. Description of triggering the update (reboot)
> 4. Verifying the update succeeded (actually is this possible right now?)

dmidecode -> check BIOS version information (vendor-specific)

Jan

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Thread

[PATCH v2 0/7] efi: Enhance capsule loader to support signed Quark images Jan Kiszka <jan.kiszka@siemens.com> - 2017-03-24 18:40 +0100
  [PATCH v2 4/7] efi/capsule: Adjust return type of efi_capsule_setup_info Jan Kiszka <jan.kiszka@siemens.com> - 2017-03-24 18:40 +0100
    Re: [PATCH v2 4/7] efi/capsule: Adjust return type of efi_capsule_setup_info Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-03-24 19:50 +0100
  [PATCH v2 6/7] efi/capsule: Factor out overloadable efi_capsule_identify_image Jan Kiszka <jan.kiszka@siemens.com> - 2017-03-24 18:40 +0100
  [PATCH v2 5/7] efi/capsule: Prepare for loading images with security header Jan Kiszka <jan.kiszka@siemens.com> - 2017-03-24 18:40 +0100
    Re: [PATCH v2 5/7] efi/capsule: Prepare for loading images with  security header Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-03-24 21:30 +0100
    Re: [PATCH v2 5/7] efi/capsule: Prepare for loading images with  security header Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-03-28 16:00 +0200
      Re: [PATCH v2 5/7] efi/capsule: Prepare for loading images with  security header Jan Kiszka <jan.kiszka@siemens.com> - 2017-03-28 17:20 +0200
        Re: [PATCH v2 5/7] efi/capsule: Prepare for loading images with  security header Jan Kiszka <jan.kiszka@siemens.com> - 2017-03-28 17:50 +0200
          Re: [PATCH v2 5/7] efi/capsule: Prepare for loading images with  security header Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-03-28 18:00 +0200
            Re: [PATCH v2 5/7] efi/capsule: Prepare for loading images with  security header Jan Kiszka <jan.kiszka@siemens.com> - 2017-03-28 18:30 +0200
              Re: [PATCH v2 5/7] efi/capsule: Prepare for loading images with  security header Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-03-28 19:30 +0200
                Re: [PATCH v2 5/7] efi/capsule: Prepare for loading images with  security header Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-03-28 19:30 +0200
                Re: [PATCH v2 5/7] efi/capsule: Prepare for loading images with  security header Jan Kiszka <jan.kiszka@siemens.com> - 2017-03-30 11:10 +0200
                Re: [PATCH v2 5/7] efi/capsule: Prepare for loading images with  security header Jan Kiszka <jan.kiszka@siemens.com> - 2017-04-04 19:50 +0200
  [PATCH v2 3/7] efi/capsule: Clean up pr_err/info messages Jan Kiszka <jan.kiszka@siemens.com> - 2017-03-24 18:40 +0100
    Re: [PATCH v2 3/7] efi/capsule: Clean up pr_err/info messages Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-03-24 19:20 +0100
  [PATCH v2 2/7] efi/capsule: Remove pr_debug on ENOMEM or EFAULT Jan Kiszka <jan.kiszka@siemens.com> - 2017-03-24 18:40 +0100
    Re: [PATCH v2 2/7] efi/capsule: Remove pr_debug on ENOMEM or EFAULT Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-03-24 19:20 +0100
  [PATCH v2 1/7] efi/capsule: Fix return code on failing kmap/vmap Jan Kiszka <jan.kiszka@siemens.com> - 2017-03-24 18:40 +0100
    Re: [PATCH v2 1/7] efi/capsule: Fix return code on failing kmap/vmap Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-03-24 19:20 +0100
  [PATCH v2 7/7] efi/capsule: Add support for Quark security header Jan Kiszka <jan.kiszka@siemens.com> - 2017-03-24 18:40 +0100
    Re: [PATCH v2 7/7] efi/capsule: Add support for Quark security header Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-03-24 21:40 +0100
  Re: [PATCH v2 0/7] efi: Enhance capsule loader to support signed  Quark images Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-03-24 21:50 +0100
    Re: [PATCH v2 0/7] efi: Enhance capsule loader to support signed  Quark images Jan Kiszka <jan.kiszka@siemens.com> - 2017-03-27 13:30 +0200
  Re: [PATCH v2 0/7] efi: Enhance capsule loader to support signed  Quark images Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2017-03-27 12:50 +0200
    Re: [PATCH v2 0/7] efi: Enhance capsule loader to support signed  Quark images Jan Kiszka <jan.kiszka@siemens.com> - 2017-03-27 13:10 +0200
      Re: [PATCH v2 0/7] efi: Enhance capsule loader to support signed  Quark images Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2017-03-28 02:50 +0200

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