I am trying to passthrough an NVIDIA GPU by choosing it in the VM setup page s but get ERROR when starting the VM:

internal error: qemu unexpectedly closed the monitor: 2021-03-06T13:18:27.827439Z qemu-system-x86_64: -device vfio-pci,host=0000:01:00.0,id=hostdev0,x-vga=on,bus=pci.4,addr=0x0,romfile=/mnt/disk3/Documents/Installed Utilities/Hardware Drivers/Computer - unRaid/HP.Quadro2000.1024.111018.rom: vfio 0000:01:00.0: group 1 is not viable Please ensure all devices within the iommu_group are bound to their vfio bus driver.

 

The IOMMU is:

IOMMU group 1:
	[8086:0c01] 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
	[8086:0c05] 00:01.1 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x8 Controller (rev 06)
 	[10de:0dd8] 01:00.0 VGA compatible controller: NVIDIA Corporation GF106GL [Quadro 2000] (rev a1)
 	[10de:0be9] 01:00.1 Audio device: NVIDIA Corporation GF106 High Definition Audio Controller (rev a1)
 	[1000:0072] 02:00.0 Serial Attached SCSI controller: Broadcom / LSI SAS2008 PCI-Express Fusion-MPT SAS-2 [Falcon] (rev 03)
		[7:0:0:0]    disk    ATA      WDC WD30EZRX-00M 0A80  /dev/sdc   3.00TB
		[7:0:1:0]    disk    ATA      WDC WD3200AAKS-0 3E01  /dev/sdd    320GB
		[7:0:2:0]    disk    ATA      WDC WD20EARS-00S 0A80  /dev/sde   2.00TB
		[7:0:3:0]    disk    ATA      TOSHIBA MD04ACA5 FP2A  /dev/sdf   5.00TB
		[7:0:4:0]    disk    ATA      TOSHIBA MD04ACA5 FP2A  /dev/sdg   5.00TB
		[7:0:5:0]    disk    ATA      HGST HDN726060AL W7JH  /dev/sdh   6.00TB
		[7:0:6:0]    disk    ATA      HGST HDN726050AL T517  /dev/sdi   5.00TB
		[7:0:7:0]    disk    ATA      ST8000VN004-2M21 SC60  /dev/sdj   8.00TB

 

My Specs are:

M/B: Supermicro X10SLL-F Version 1.02 - s/n: 0123456789
BIOS: American Megatrends Inc. Version 3.0. Dated: 04/24/2015
CPU: Intel® Xeon® CPU E3-1231 v3 @ 3.40GHz
HVM: Enabled
IOMMU: Enabled

 

How can I solve this?

Edited March 6, 20215 yr by theone

2 hours ago, theone said:

How can I solve this?

Try to pass the audio part too:
 

[10de:0be9] 01:00.1 Audio device: NVIDIA Corporation GF106 High Definition Audio Controller (rev a1)

Try enable acs override (pcie_acs_override=downstream or pcie_acs_override=downstream,multifunction).

Try to move the gpu into a different slot.

Edited March 6, 20215 yr by ghost82

I did try passing through the audio as well didn't help. 

 

Are there any possible side effects for overriding ACS? 

 

My motherboard is x10sll and I have the 8 port sata on the other slot so I cannot move the gpu to any other slot.

17 minutes ago, theone said:

Are there any possible side effects for overriding ACS? 

as far as I know, no side effects..I would give it a try with that 2 parameters I wrote (the first one or the second), it should split your iommu group..once splitted (and I hopeso) always pass the audio part too.

Edited March 6, 20215 yr by ghost82

should I start with downstream and if not then try the other options - multifunction or both? or it doesn't matter?

Just now, theone said:

should I start with downstream and if not then try the other options - multifunction or both? or it doesn't matter?

I suggest downstream then downstream,multifunction