IOMMU Group


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Hi guys,

 

Just wondering if this group would be causing any issue passing through the GTX1050ti to a VM? 


IOMMU group 1:[8086:1901] 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 07)

[10de:1c82] 01:00.0 VGA compatible controller: NVIDIA Corporation GP107 [GeForce GTX 1050 Ti] (rev a1)

[10de:0fb9] 01:00.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev a1)

That's all that is in that group but when i boot the VM i get a black screen.


  *-display UNCLAIMED       
       description: VGA compatible controller
       product: GP107 [GeForce GTX 1050 Ti]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller cap_list
       configuration: latency=0
       resources: memory:de000000-deffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:e000(size=128) memory:df000000-df07ffff
  *-display UNCLAIMED
       description: VGA compatible controller
       product: ASPEED Graphics Family
       vendor: ASPEED Technology, Inc.
       physical id: 0
       bus info: pci@0000:04:00.0
       version: 30
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi vga_controller bus_master cap_list
       configuration: latency=0
       resources: memory:dc000000-dcffffff memory:dd000000-dd01ffff ioport:d000(size=128) memory:c0000-dffff

Edited by SavageAUS
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I think I had samekind problem in past. I think adding to Syslinux Configuration append pci=noaer got my GPU passthrough working.


You get there on MAIN tab and under boot device click Flash. At left of your usb memory stick model.

 

Here is my syslinux configuration code you to get my idea:

default menu.c32
menu title Lime Technology, Inc.
prompt 0
timeout 50
label Unraid OS
  menu default
  kernel /bzimage
  append pci=noaer vfio-pci.ids=1912:0014 pcie_acs_override=downstream initrd=/bzroot
label Unraid OS GUI Mode
  kernel /bzimage
  append pcie_acs_override=downstream initrd=/bzroot,/bzroot-gui
label Unraid OS Safe Mode (no plugins, no GUI)
  kernel /bzimage
  append initrd=/bzroot unraidsafemode
label Unraid OS GUI Safe Mode (no plugins)
  kernel /bzimage
  append initrd=/bzroot,/bzroot-gui unraidsafemode
label Memtest86+
  kernel /memtest

 

I added pci=noaer at first after that append.

I'm not expert on Unraid and I might have added also: pcie_acs_override=downstream, vfio-pci.ids=1912:0014

So try with your own risk!

 

Inform me what happens! :) 

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12 hours ago, SavageAUS said:

[10de:1c82] 01:00.0 VGA compatible controller: NVIDIA Corporation GP107 [GeForce GTX 1050 Ti] (rev a1)

[10de:0fb9] 01:00.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev a1)

To me that appears to be the 1050 card and that second device is the audio controller of the same card (for the HDMI/Display-Port output). The PCI root address for both is 01:00. 

 

13 minutes ago, SavageAUS said:

I’ll try dumping the vbios later and see if that works.

That's where I would placing my bets, if it was me. 

Edited by Jcloud
  • Like 1
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