Re: [PATCH v7 1/2] efi: export efi_capsule_supported() function symbol

[Bryan O'Donoghue <pure.logic@nexus-software.ie>]

On 07/10/15 03:01, Kweh, Hock Leong wrote:
>> -----Original Message-----
>> From: Bryan O'Donoghue [mailto:pure.logic@nexus-software.ie]
>> Sent: Tuesday, October 06, 2015 10:54 PM
>>>>
>>>> Aside from that, I'm curious which types of capsules you've used here
>>>> too - does it include the MFH header ? Keep in mind the initial
>>>> firmware that shipped with Galileo will depend on that MFH being
>> present.
>>>>
>>>>
>> http://download.intel.com/support/processors/quark/sb/quark_secureboo
>>>> t
>>>> prm_330234_001.pdf
>>>> - Section A1 - table 7 ?
>>>>
>>>> So if we boot a 4.x kernel with that initial firmware version 0.75 if
>>>> memory serves - it's important that the capsule.c code handles the MFH.
>>>>
>>>
>>> Already got agreement with Matt that Quark Security Header patch will
>>> not be upstream to mainline as it is not a standard header. So Intel
>>> will carry this patch ourselves.
>>
>> Right... so what sort of capsule are you testing with ?
>
> I am testing on Intel Galileo Gen 1 with bios version v0.7.5, v0.8.0, v1.0.1 & v1.0.2.
>
> Thanks & Regards,
> Wilson
>

Hmm.

That's pretty confusing.

The 0.75 BIOS requires the MFH as far as I remember. If the capsule you 
are using doesn't have the MFH - how is this working ?