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Resources Mapping, how to use it
I have multiple identical OptiPlex micro with iGPU pcie pass through. It works ok but I am working toward HA, live migration and a few others things. I PVE7 there wasn't anything such as resources mapping and after reading the documentation and experimenting I... Don't understand how to use it.
Anyone care to help?
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V8 can help, it introduces: Resource mappings between PCI(e) or USB devices and nodes in a cluster
Yes I got that from reading the documentation but anything explaining how to use it? I tried a few ways and it was not working as I would expect.
In the Datacenter tree, click on the "PCI Mapping" node and add the devices to be mapped. On a single-node cluster, there's only one possible host to assign the mapping to. (I don't have experience with anything else.)
In the VM you want to pass the device through, click on Hardware, use the "Add" drop-down menu, and select "PCI device". This is how I mapped in my Ethernet ports into the PfSense VM (without using the bridge).
You can also add a "Raw Device" without the mapping, apparently.
Make sure you stop and re-start the VM, not merely reboot.
The caveats and pre-requisites are discussed here: https://pve.proxmox.com/wiki/PCI_Passthroug
I tried doing this with opnsense but couldn't get it to work and ended up somehow making it happen using bridge. Is there a reason you didn't want to use the bridge?