REQ: Help understand IOMMU groups and VMs - NVidia GTX670 on ASRock AM350 Pro 4

I have a new Unraid build, my first one.

I would like to do a VM with a GPU passthru of my NVidia 670 GTX.  The board is an ASRock AM350 Pro 4 with a Ryzen 5 2400G Processor and 16 MB of RAM.  The NAS side of things seems to be set up and working.

I have tried both x16 slots and both result in the Nvidia card appearing in IOMMU group 0, so I don't seem to be able to isolate it.

Am I going to be able to pass it through given this situation?

My IOMMU groups are:

Quote

IOMMU group 0:

 

[1022:1452] 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge

[1022:15d3] 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]

[1022:15d3] 00:01.6 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]

[1022:43bb] 01:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset USB 3.1 xHCI Controller (rev 02)

Bus 001 Device 001 Port 1-0 ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 001 Device 002 Port 1-2 ID 045e:07a5 Microsoft Corp. Wireless Receiver 1461C

Bus 001 Device 003 Port 1-5 ID 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Flash Drive

Bus 002 Device 001 Port 2-0 ID 1d6b:0003 Linux Foundation 3.0 root hub

[1022:43b7] 01:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset SATA Controller (rev 02)

[1:0:0:0] disk ATA ST4000VN008-2DR1 SC60 /dev/sdb 4.00TB

[2:0:0:0] disk ATA ST4000VN008-2DR1 SC60 /dev/sdc 4.00TB

[6:0:0:0] disk ATA ST4000VN008-2DR1 SC60 /dev/sdd 4.00TB

[5:0:0:0] cd/dvd ATAPI DVD A DH16A1L KH1A /dev/sr0 1.07GB

[1022:43b2] 01:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43b2 (rev 02)

[1022:43b4] 02:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02)

[1022:43b4] 02:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02)

[1022:43b4] 02:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02)

[1022:43b4] 02:05.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02)

[1022:43b4] 02:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02)

[1022:43b4] 02:07.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02)

[1b21:0612] 07:00.0 SATA controller: ASMedia Technology Inc. ASM1062 Serial ATA Controller (rev 02)

[9:0:0:0] disk ATA Samsung SSD 840 BB6Q /dev/sde 250GB

[10ec:8168] 08:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 11)

[10de:1189] 09:00.0 VGA compatible controller: NVIDIA Corporation GK104 [GeForce GTX 670] (rev a1)

[10de:0e0a] 09:00.1 Audio device: NVIDIA Corporation GK104 HDMI Audio Controller (rev a1)

 

 

IOMMU group 1:

 

[1022:1452] 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge

[1022:15db] 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A

[1002:15dd] 0a:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] (rev c6)

[1002:15de] 0a:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller

[1022:15df] 0a:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor

[1022:15e0] 0a:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1

Bus 003 Device 001 Port 3-0 ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 004 Device 001 Port 4-0 ID 1d6b:0003 Linux Foundation 3.0 root hub

[1022:15e1] 0a:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1

Bus 005 Device 001 Port 5-0 ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 006 Device 001 Port 6-0 ID 1d6b:0003 Linux Foundation 3.0 root hub

[1022:15e3] 0a:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h HD Audio Controller

 

 

IOMMU group 2:

 

[1022:790b] 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)

[1022:790e] 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)

IOMMU group 3:[1022:15e8] 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 0

[1022:15e9] 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 1

[1022:15ea] 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 2

[1022:15eb] 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 3

[1022:15ec] 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 4

[1022:15ed] 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 5

[1022:15ee] 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 6

[1022:15ef] 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 7