[Question about using downstream and multifunction IOMMU groups]

Ok, thx for your reply.

So unless I find a better solution I also just stay at this option, everything is running fine by now ^^

[Unable to passthrough GTX 1050 Ti to Win 10 (Code 43)]

Well I think on every Board it's an adventure to fix the error 43 😅

That was all I know, hope you find the solution soon!

[Unable to passthrough GTX 1050 Ti to Win 10 (Code 43)]

ok, then leave it in UEFI mode and just switch this "Other PCI Device ROM Priority" setting to Legacy, maybe this also works.

[Unable to passthrough GTX 1050 Ti to Win 10 (Code 43)]

Ok found the settings wich prevented me from installing the driver.

1. I switched back to Legacy Mode in the flash settings from Unraid

2. Go to the bios and Seach something like "Other PCI Device ROM Priority" and select Legacy only.

Then I reinstalled the graphics driver in the VM and now it works again.

 

Hope this time it helps

[Unable to passthrough GTX 1050 Ti to Win 10 (Code 43)]

No, I read an article where someone said you can fill the vendor_id up with 12 random characters from 0-F.

But funny thing, I played around and now the error 43 is back

 

I will let you know when I found that one option wich fixed the error for me

[Unable to passthrough GTX 1050 Ti to Win 10 (Code 43)]

Hey I think I solved my Error 43 with changing and adding some lines in the xml file:

first at the vendor_id type in a 12characters long ID Example: 2D76A8B352F1

then add the rest, it should end above the features closing bracket.

So the idea is to hide the VM for Nvidia, because the driver don't want to be installed on a VM I think.

 

<vendor_id state='on' value='2D76A8B352F1'/>
   </hyperv>
   <kvm>
     <hidden state='on'/>
   </kvm>
   <ioapic driver='kvm'/>
 </features>

 

Hope it helps

[Question about using downstream and multifunction IOMMU groups]

Hello,

 

I just wanted to use my HD Audio from the mainboard in a Windows VM.

Sadly I got an error everytime because of the IOMMU groups. (Attached my IOMMU groups without override)

I tried both pcie_acs_override and vfio-pci.ids parameter with modprobe.blacklist=i2c_i801,i2c_smbus.

 

So now I have both pcie_acs_override=downstream, multifunction enabled.

Only way I got it to work by now.

 

I heard that it is not recommended using both or and have almost every device in an own IOMMU group.

So what is the worst thing that can happen? Or what else can I try to get the mainboard audio to work?

Also I'm interested if it affects the performance and secruity of the VM or the whole system?

 

Thx for your time

iommu_groups.txt

[(SOLVED) GPU Passthrough Error Unknown PCI header type '127']

On 1/13/2020 at 4:47 AM, dodgypast said:

Have you updated to a BIOS based on AMD AGESA 1.0.0.4 B, that's a requirement for passthrough.

Thank you!!!

It really solved the problem with the unknown pci header type.

 

So now I started the VM with the dump file I already had.

It works! But now the next problem: No drivers will be installed.

 

So like you mentioned, I think I have to dump my own vbios.

Anything else I have to look for?

 

Edit: I dumped my own vbios but the results are the same. The device manager still shows error 43.

Here's what I already tried:

- Switched from Q and i in the Machine settings

- Added the multifunction parameter in the xml, also added following lines:

   <kvm>
      <hidden state='on'/>
   </kvm>
   <ioapic driver='kvm'/>

- Started the VM with both VNC and the GPU

 

EDIT 2: I don't know what exactly solved the problem, but it's now working with drivers on Linux and Windows.

Something what I know what I did is, I changed this parameter:

 

<vendor_id state='on' value='28a2c82d201d'/>  <ioapic driver='kvm'/>

Just type in a value with a lenghth of 12 random characters.

 

Thanks for all the replies!

[(SOLVED) GPU Passthrough Error Unknown PCI header type '127']

Well that's a good point😅

I will do that when I did the BIOS update and it's sill freezing.

Does is also work when I have only one PCIe port? Because I thought I can only dump one from the 2nd card.

Otherwise I can dump one with my PC.

[(SOLVED) GPU Passthrough Error Unknown PCI header type '127']

I followed the tutorial from Spaceinvader One and used a rom file from the techpowerup website.

Also removed the header with an hex editor. But I think I also tried the VM without any vbios files.

Once I started the VM, the display got a connection but after few seconds the VM freezes.

Maybe that's why it fails to reset.

[(SOLVED) GPU Passthrough Error Unknown PCI header type '127']

Oh OK, I just checked the Version of my BIOS and it's the F41.

On the Aorus Website there is a new one F50 with the AMD AGESA 1.0.0.4 B.

I will update the BIOS when I'm at home and let you know if it worked.

 

Thank you for that hint!

[(SOLVED) GPU Passthrough Error Unknown PCI header type '127']

Hello Unraid Community,

 

I'm new to Unraid and just built a Server with the following specs:

 

Aorus B450 Pro Wifi (because I wanted a small ITX board in s small case)

AMD Ryzen 7 2700

2x16 GB DDR4 3000 Mhz

GTX 1080

at the moment I have 500GB m.2 as cache and 3 hdd (4tb parity, 1TB and 2TB)

 

Now the Problem is that I want to passthrough the 1080 to a Windows 10 VM but I only have 1 GPU.

I saw some awesome Videos from the Spaceinvader One and tried to use a dump file for the gpu.

Now everytime I start a vm using my GPU it fails.

You can see that the monitor is getting some connections but after few seconds the VM freezes.

Also no more Monitor connections.

 

I have to force stop the VM and then when I want to restart it the following Error occurs:

Execution error

internal error: Unknown PCI header type '127' for device '0000:09:00.0' <-- This is my GPU, it also should be in an own IOMMU group

 

And after that when I want to reboot or power off my Server, the machine stays on and I have to manually turn off the power.

But only when I tried to use my GPU in a VM... strange...

 

Hope someone have some tips

I also attached my System Devices

System Devices.txt