I7-14700 and Asrock z690 extreme - can't figure out PCIE passthrogh

Submitted ⁨⁨8⁩ ⁨months⁩ ago⁩ by ⁨nemanin@lemmy.world⁩ to ⁨selfhosted@lemmy.world⁩

I can’t even figure out how to tell if it’s supported or not. If it is supported, I can’t figure out how to enable it. If it is enabled, idk where I should be seeing it in proxmox!

Can anyone point me in the right direction?

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AlphaAutist@lemmy.world ⁨8⁩ ⁨months⁩ ago
It looks like it should be possible as both your cpu and motherboard support Intel VT-d

ark.intel.com/…/intel-core-i7-processor-14700-33m…

download.asrock.com/Manual/Z690 Extreme.pdf

PCIe pass through isn’t enabled by default in Proxmox and requires some manual changes to the bootloader (grub or systemd-boot) as well as loading some kernel modules. You may also need to enable VT-d in your BIOS. You can read proxmox’ guide for enabling PCIe pass through here:

pve.proxmox.com/wiki/PCI(e)_Passthrough

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- wildbus8979@sh.itjust.works ⁨8⁩ ⁨months⁩ ago
  The motherboard need to support IOMMU, not Vt-d
  
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  - possiblylinux127@lemmy.zip ⁨8⁩ ⁨months⁩ ago
    Are you sure? I though Vt-d is the Intel virtualization extension that is used my IOMMU
    
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  - nemanin@lemmy.world ⁨8⁩ ⁨months⁩ ago
    Ok. So they are different?
    
    How do I tell which motherboards support IOMMU?
    
    I can’t find it as a filter or search option on any websites…?
    
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Decronym@lemmy.decronym.xyz ⁨6⁩ ⁨months⁩ ago

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:

Fewer Letters	More Letters
NAS	Network-Attached Storage
NVMe	Non-Volatile Memory Express interface for mass storage
PCIe	Peripheral Component Interconnect Express
SATA	Serial AT Attachment interface for mass storage
SSD	Solid State Drive mass storage

[Thread #739 for this sub, first seen 6th May 2024, 05:15] [FAQ] [Full list] [Contact] [Source code]

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possiblylinux127@lemmy.zip ⁨8⁩ ⁨months⁩ ago
Start by going into your firmware setting (hold del on boot) and enabling virtualization and all extensions.

Once that’s done you can just click on add hardware and then ePCI device. If its a GPU it will require more setup.

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MonkderZweite@feddit.ch ⁨8⁩ ⁨months⁩ ago
The thing called bifurcation?

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- roofuskit@lemmy.world ⁨8⁩ ⁨months⁩ ago
  No, bifurcation is s splitting the lanes in the actual l actual slot between devices. Usually for something like an m.2 adapter board.
  
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- nemanin@lemmy.world ⁨8⁩ ⁨months⁩ ago
  Well, that’s at least part of my problem. I have no idea what it would be called so it’s hard to google. I guess the underlying technology is all ‘IOMMU’, but each motherboard manufacture and Intel and AMD all have other names for it…
  
  I’m trying to pass an HBA through to a VM for a NAS.
  
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  - MonkderZweite@feddit.ch ⁨8⁩ ⁨months⁩ ago
    Right, confused it with the splitting of lanes (M.2 x4 bays).
    
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