Confused on how Hardware Passthrough work (Migrating from ESXi)

doestergaard

New Member
Oct 14, 2024
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In ESXi you just press the toggle and PCI passthrough is enabled and no longer visible to the host system. In Proxmox, I have set up GPU passtrough and it seems to be working. But when I take a look at my PCI list on the host system, I see that my GPU is listed and has loaded the vfio-pci kernel driver, and in my VM it is listed with the nvidia driver. Is this expected or do I need to do some additional configuration in Proxmox?

PVE version that I am running is PVE 8.2(7) and have only enabled IOMMU in BIOS.

I will be happy to provide more information if needed.

Thanks in advance guys!

pci list on proxmox node
65:00.0 VGA compatible controller: NVIDIA Corporation GP107GL [Quadro P1000] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Dell GP107GL [Quadro P1000]
Flags: bus master, fast devsel, latency 0, IRQ 263, NUMA node 0, IOMMU group 9
Memory at df000000 (32-bit, non-prefetchable) [size=16M]
Memory at 38bfe0000000 (64-bit, prefetchable) [size=256M]
Memory at 38bff0000000 (64-bit, prefetchable) [size=32M]
I/O ports at b000
Expansion ROM at e0000000 [disabled] [size=512K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Legacy Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [128] Power Budgeting <?>
Capabilities: [420] Advanced Error Reporting
Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
Capabilities: [900] Secondary PCI Express
Kernel driver in use: vfio-pci
Kernel modules: nvidiafb, nouveau

65:00.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev a1)
Subsystem: Dell GP107GL High Definition Audio Controller
Flags: bus master, fast devsel, latency 0, IRQ 262, NUMA node 0, IOMMU group 9
Memory at e0080000 (32-bit, non-prefetchable) [size=16K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Kernel driver in use: vfio-pci
Kernel modules: snd_hda_intel

pci list on vm
06:10.0 VGA compatible controller: NVIDIA Corporation GP107GL [Quadro P1000] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Dell Device 11bc
Physical Slot: 16-2
Flags: bus master, fast devsel, latency 0, IRQ 46
Memory at c1000000 (32-bit, non-prefetchable) [size=16M]
Memory at 383800000000 (64-bit, prefetchable) [size=256M]
Memory at 383810000000 (64-bit, prefetchable) [size=32M]
I/O ports at 9000
Expansion ROM at c2080000 [virtual] [disabled] [size=512K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
Kernel driver in use: nvidia
Kernel modules: nouveau, nvidia_drm, nvidia

06:10.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev a1)
Subsystem: Dell Device 11bc
Physical Slot: 16-2
Flags: bus master, fast devsel, latency 0, IRQ 22
Memory at c2000000 (32-bit, non-prefetchable) [size=16K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
 
Last edited:
One more thing; If I try to update the nvidia driver on my VM, i get an "Extraction" error. I have tried a couple of different versions - same thing. I wondered if this was due to my pci passthrough configuration.

Verifying archive integrity... OK
Uncompressing NVIDIA Accelerated Graphics Driver for Linux-x86_64 550.107.02Extraction failed.

Signal caught, cleaning up

I have enough free space on the drive.