F5F Stay Refreshed Software Operating Systems Unable to configure Proxmox to allow PCI devices.

Unable to configure Proxmox to allow PCI devices.

Unable to configure Proxmox to allow PCI devices.

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MarniDK
Member
59
10-24-2025, 03:44 AM
#1
you're trying to configure a virtual machine on your server using a dedicated network interface, USB hub, and graphics card. you've installed the NIC but aren't managing it properly to route traffic to your VM, and despite following all steps, you're still facing issues.
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MarniDK
10-24-2025, 03:44 AM #1

you're trying to configure a virtual machine on your server using a dedicated network interface, USB hub, and graphics card. you've installed the NIC but aren't managing it properly to route traffic to your VM, and despite following all steps, you're still facing issues.

B
BookMix
Member
207
10-24-2025, 07:19 AM
#2
Checking the details? I'm looking into the specifications. Are you sure about the iommu groups?
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BookMix
10-24-2025, 07:19 AM #2

Checking the details? I'm looking into the specifications. Are you sure about the iommu groups?

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Fire_man_boy
Member
53
10-25-2025, 11:26 PM
#3
The nic stands alone within its own category, avoiding any complications. It's a high-end model with 2x x5650 modules, evenly distributed across both chips.
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Fire_man_boy
10-25-2025, 11:26 PM #3

The nic stands alone within its own category, avoiding any complications. It's a high-end model with 2x x5650 modules, evenly distributed across both chips.

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piggyman200
Junior Member
11
10-27-2025, 10:55 AM
#4
The other drive uses a different NIC. Since the NIC is unavailable, a virtual switch is recommended.
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piggyman200
10-27-2025, 10:55 AM #4

The other drive uses a different NIC. Since the NIC is unavailable, a virtual switch is recommended.

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kungfutyla
Posting Freak
780
10-27-2025, 11:42 AM
#5
Last night I included section 9 about hardware pass-through in my PROXMOX guide. I faced a challenge with enabling IOMMU groups; initially, using pve-efiboot-tool to refresh seemed necessary, but it didn’t work. Instead, running the update-grub command resolved the issue and allowed the IOMMU groups to function as expected.
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kungfutyla
10-27-2025, 11:42 AM #5

Last night I included section 9 about hardware pass-through in my PROXMOX guide. I faced a challenge with enabling IOMMU groups; initially, using pve-efiboot-tool to refresh seemed necessary, but it didn’t work. Instead, running the update-grub command resolved the issue and allowed the IOMMU groups to function as expected.

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Zerpenn
Member
63
10-27-2025, 01:27 PM
#6
I’d prefer a separate line for it instead of jumping through several drivers, maybe I’m just different that way.
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Zerpenn
10-27-2025, 01:27 PM #6

I’d prefer a separate line for it instead of jumping through several drivers, maybe I’m just different that way.

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Vortex59_YT
Member
198
10-29-2025, 05:35 AM
#7
The overhead is significantly reduced, and using virtual NICs performs much better for most applications. Have you tested it with the GPU? Was Iommu detected in the boot log?
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Vortex59_YT
10-29-2025, 05:35 AM #7

The overhead is significantly reduced, and using virtual NICs performs much better for most applications. Have you tested it with the GPU? Was Iommu detected in the boot log?

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Pekaaa
Member
206
10-29-2025, 09:44 AM
#8
I suspect the dmesg -H output is displaying dmar: iommu enabled. I also tested the GPU and blocked all its drivers, but it still doesn’t work.
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Pekaaa
10-29-2025, 09:44 AM #8

I suspect the dmesg -H output is displaying dmar: iommu enabled. I also tested the GPU and blocked all its drivers, but it still doesn’t work.