OpenMediaVault pcie pass-through

[stefgrifon]

Hello,

I need your own experience.

I want to install the OpenMediaVault and i make pcie pass-through.
I have read on wikiarticle link that i must use Q35 machine https://pve.proxmox.com/wiki/Pci_passthrough .

PCIe passthrough is only supported on Q35 machines.

Can anyone advise me which configuration works better for this setup?

Thank you,
Stefanos

 

[dcsapak]

sorry but there is a bit too little information here.

the wiki page is correct that pcie passthrough requries q35, but pci passthrough also works with i440fx (you can passthrough a real pcie device as pci device most of the time)

but what do you actually pass through? what is the problem with using q35? did you already try it?

 

[stefgrifon]

sorry but there is a bit too little information here.

the wiki page is correct that pcie passthrough requries q35, but pci passthrough also works with i440fx (you can passthrough a real pcie device as pci device most of the time)

but what do you actually pass through? what is the problem with using q35? did you already try it?

Hello,

Thank you for your answer.

I tried to make an q35 with these settings.



I can finsh the installation without errors but the virtual machine cannot make boot, even if I have these settings, for this reason i ask for your opinion.

 

[virtx]

What's your CPU?

Just managed to passthrough my hard drive through PCIe on my AMD device. Following the PVE wiki and this post https://www.reddit.com/r/Proxmox/comments/cagusq/current_state_of_pci_passthrough_acs_patch/.

>Update and fix: changing GRUB_CMDLINE_LINUX_DEFAULT = "quiet pcie_acs_override=downstream,multifunction" fixed my problems and splits every PCI device into its own group. "multifunction" is the flag needed.

The official wiki https://pve.proxmox.com/wiki/Pci_passthrough missed the flag `multifunction` which I need.