[coreboot] Asus KGPE-D16 with latest coreboot errors with Unsupported Hardware on Qubes 4 install missing IOMMU?

[Timothy Pearson]

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On 12/03/2018 04:35 AM, Felix Held wrote:
> Hi!
> 
> 
>> No idea why combined mode is the default, it's only useful for OSes from
>> the '90s. It's not about the type of drives (SATA vs PATA) connected but
>> how the SATA controller identifies itself to the OS.
> 
> 
> I agree that the combined mode isn't the best default, but I can't say
> that it's totally useless. In combined mode you have the first 4(?) SATA
> ports connected to an AHCI controller and the last 2(?) to a legacy
> IDE/ATA controller. I had some SATA->PATA bridge to connect a PATA
> device to a mainboard and the adapter I had only worked on SATA ports
> that were connected to a legacy IDE/ATA controller, but not on SATA
> ports connected to an AHCI controller. I didn't further debug that issue
> though, so I can't say why it didn't work on an AHCI controller.
> 
> 
> Speaking of the KGPE-D16: I still have this patch [0] in my review queue
> that is needed for coreboot to work on the board when the BMC firmware
> flash is installed, but it seems that neither Timothy nor owners of that
> board really care about that patch any more (I poked a few people about
> that patch a few times), which I find quite sad. Would be good if
> someone would address the last 3 comments and actually tests the patch
> on the real hardware, so it can be merged to fix that show-stopper.
> 
> 
> Regards
> 
> Felix

First, thanks for the patch and work on the KGPE-D16.  I've been meaning
to do a better job at helping maintain the platform, but right now life
has gotten somewhat in the way in that I haven't had proper access to
the KGPE-D16 development system in quite a while (space taken up with
Talos / Blackbird boards for the most part).

Things should settle down some after Christmas, so I'll see what I can
do to pull the old D16 dev platform back out at that time and start
testing / merging patches.  Are there any others that I should also help
take a look at?

- -- 
Timothy Pearson
Raptor Engineering
+1 (415) 727-8645 (direct line)
+1 (512) 690-0200 (switchboard)
https://www.raptorengineering.com
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