[coreboot] ACPI error booting Windows

[Matt DeVillier]

I have Windows booting on a KBL CrOS device, and looking at my tree, pretty
sure the only change I have that would potentially address that error is
adding the pcon value to the IGD ACPI OpRegion header:
https://github.com/MattDevo/coreboot/commit/3349065354709c852765555168272469797dd3f6

there were a few others but they've all since been merged upstream


On Wed, Apr 25, 2018 at 6:00 PM Alex Feinman <alexfeinman at hotmail.com>
wrote:

> I've built a Coreboot image (from the HEAD) for my custom Kaby Lake board.
> The build uses Chrome EC and is based on kblrvp3 mainboard configuration.
> Linux runs fine, but when I attempt to install Windows 10 (or boot a
> preinstalled Windows image from USB) I instantly get ACPI_BIOS_ERROR
> (0xC00000A5). There is a Microsoft document that provides a large amount of
> possible reasons for this error, however I can't even narrow it down
> because cleverly Windows 10 no longer prints the bug check parameters, at
> least not in this case.
>
> I would appreciate some pointers if possible.
>
> Thank you
> Alex
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> coreboot mailing list: coreboot at coreboot.org
> https://mail.coreboot.org/mailman/listinfo/coreboot
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