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Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark images

From Bryan O'Donoghue <pure.logic@nexus-software.ie>
Newsgroups linux.kernel
Subject Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark images
Date 2017-03-01 15:40 +0100
Message-ID <tgdA5-4nt-1@gated-at.bofh.it> (permalink)
References (11 earlier) <tfRzz-69T-13@gated-at.bofh.it> <tfSP0-6Wr-23@gated-at.bofh.it> <tfTBo-7wT-17@gated-at.bofh.it> <tfTBo-7wT-15@gated-at.bofh.it> <tfV0v-8jJ-49@gated-at.bofh.it>
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On 28/02/17 17:42, Bryan O'Donoghue wrote:
> On 28/02/17 17:18, Andy Shevchenko wrote:
>> On Tue, Feb 28, 2017 at 6:52 PM, Bryan O'Donoghue
>>> A kernel compiled like this
>>>
>>> make menuconfig ARCH=i386
>>
>> I hope you care that it is equivalent to
>>
>> make menuconfig ARCH=i686
>>
>>> make bzImage -j 8
>>>
>>> will run just fine on Quark x1000 I do it regularly. CPUID ought to (and
>>> does) inform the runtime kernel of what to do re: MSRs etc.
>>>
>>> We won't execute xmm/mmx, we won't touch 686 specific MSRs etc, etc.
>>
>> It is i*6*86 code still.
>>
>> So, summarize, you state that
>> 1. CONFIG_SMP=y and
>> 2. CONFIG_M686=y and
>> 3. Kernel works on Quark
>>
>> Is it correct?
>
> Logically yes. It's a very long time since I looked in detail. No harm
> in checking it out though.
>
> I'll compile up the above kernel this evening (GMT) and verify.
>
>

CONFIG_SMP=y - no difference - like I say it's PF# on lock prefix
                instructions, not SMP=y that's the problem here
CONFIG_M686=y (doesnt' boot)
CONFIG_M586TSC=y does boot

So yes M686 is not bootable on this part. My point to you about having a 
custom kernel though still stands, you shouldn't have to compile a quark 
specific kernel - just a 586TSC kernel with Quark support.

For example CentOS is bootable on Quark.


---
bod

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Thread

[PATCH 0/2] efi: Enhance capsule loader to support signed Quark images Jan Kiszka <jan.kiszka@siemens.com> - 2017-02-15 19:20 +0100
  Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark images Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-02-15 19:20 +0100
    Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Jan Kiszka <jan.kiszka@siemens.com> - 2017-02-15 19:50 +0100
  [PATCH 1/2] efi/capsule: Prepare for loading images with security header Jan Kiszka <jan.kiszka@siemens.com> - 2017-02-15 19:20 +0100
  [PATCH 2/2] efi/capsule: Add support for Quark security header Jan Kiszka <jan.kiszka@siemens.com> - 2017-02-15 19:20 +0100
    Re: [PATCH 2/2] efi/capsule: Add support for Quark security header Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2017-02-17 02:40 +0100
  Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark images Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-02-15 19:50 +0100
  Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark images Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-02-15 19:50 +0100
    Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Jan Kiszka <jan.kiszka@siemens.com> - 2017-02-15 20:00 +0100
      Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Jan Kiszka <jan.kiszka@siemens.com> - 2017-02-15 20:10 +0100
        RE: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images "Kweh, Hock Leong" <hock.leong.kweh@intel.com> - 2017-02-16 04:10 +0100
          Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Jan Kiszka <jan.kiszka@siemens.com> - 2017-02-16 08:40 +0100
            Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark images Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-02-18 23:00 +0100
              Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Jan Kiszka <jan.kiszka@siemens.com> - 2017-02-19 14:40 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2017-02-20 02:40 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Jan Kiszka <jan.kiszka@siemens.com> - 2017-02-20 03:00 +0100
          Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2017-02-17 02:00 +0100
            RE: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images "Kweh, Hock Leong" <hock.leong.kweh@intel.com> - 2017-02-17 09:30 +0100
              Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Jan Kiszka <jan.kiszka@siemens.com> - 2017-02-17 10:30 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Matt Fleming <matt@codeblueprint.co.uk> - 2017-02-28 13:20 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Jan Kiszka <jan.kiszka@siemens.com> - 2017-02-28 13:30 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Matt Fleming <matt@codeblueprint.co.uk> - 2017-02-28 13:40 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark images Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-02-28 14:40 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2017-02-28 16:10 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2017-02-28 16:20 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark images Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-02-28 17:30 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark images Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-02-28 18:20 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2017-02-28 19:50 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2017-03-01 15:40 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark images Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-03-01 16:10 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2017-02-28 18:30 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark images Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-02-28 14:40 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark images Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-02-28 14:40 +0100
              Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2017-02-17 11:00 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Jan Kiszka <jan.kiszka@siemens.com> - 2017-02-17 11:20 +0100
                Re: [PATCH 0/2] efi: Enhance capsule loader to support signed Quark  images Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2017-02-17 12:50 +0100

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