[coreboot] minnowmax expertise needed

Zoran Stojsavljevic zoran.stojsavljevic at gmail.com
Mon Apr 17 10:40:33 CEST 2017


Hello Ron,

I have here significant problem to understand you. It is not a first
time, but I would sign/stick this misunderstanding to my ignorance.
:-(

As my best understanding is, INTEL FSP is nothing else, but stripped
to the bones BIOS, with ONLY PEI phase in the charge (NOT the entire
PEI, Platform init is selectively implemented in FSP). We have there
CPU init, PCH init, and, at the very end. Platform init.

Now, said that, I will ask the entire community the following questions:
[1] What is the definition of Coreboot (in my naive vision, minimal/a
must DXE + OS Boot Loader phase preparation - example: SeaBIOS
payload)?
[2] What does it mean in your interpretation: "single DXE"?
[3] If you are talking about MinnowMax. I assume you are talking about
ATOM BYT M/I skus, aren't you?
[4] Why, in the first place, INTEL FSP experts are NOT answering your
quest, since they (I guess) better understand what you are asking
for???
[5] What does it mean: "our own Tiano Core"? Does INTEL does NOT own
Tiano Core? Or Coreboot (Google) created its own Tiano Core???

At least, you've heard from me. ;-)

Thank you,
Zoran
_______

On 4/15/17, ron minnich <rminnich at gmail.com> wrote:
> Hi, I'm starting to look at the minnowmax firmware images. I have a rather
> odd requirement. I'd like to scrape the image down to just PEI, nothing
> more, and then have that PEI load a single DXE, which will then take over.
>
> We've had success with this on a few other EFI sytsems, but the minnowmax
> seems to be slightly special. We've done a small amount of work to
> rearrange the firmware volume and quickly learned that you can't relocate
> anything in the firmware volume ... they appear to have built it with
> hardwired pointers to things like nvram variables (why bother with a flash
> file system if you're going to do things like that ... oh well) ... so it
> looks like at minimum we need to build/burn our own tiano core to start.
>
> Anyway, if you have looked at the minnowmax, I'd like to hear from you.
>
> Thanks!
>
> ron
>



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