I look forward to testing this out. I keep a windows VM mostly for updating hardware when there's no other way. USB passthrough is a feature that doesn't always work in a stable manner with libvirt.
I think you’re referring to the ability to split a physical NVIDIA GPU into multiple virtual GPUs so that you can do full GPU pass-through with one card (without having to resort to hacks like disconnecting host sessions.)
What vm-curator provides is an easy way to use QEMU”s built in para-virtualization (virtio-vga-gl, a.k.a. virgl) in a manner that works with NVIDIA cards. This is not possible using libvirt based tools because of a bug between libvirt and NVIDIA’s Linux drivers.
No. I thought about that, but decided it would be too much of a hassle to maintain, plus it becomes legally problematic with non-FOSS, non-abandonware profiles (i.e. modern Windows and MacOS.)
Instead, for many profiles, it provides a link to the OS’s website (or archive.org) where you can download the installation media.
IOMMU pass-through is the next feature I'm working on, but I felt it was now time to release the V1. Currently, vm-curator supports:
- VM creation with over 100 different OS profiles, built for KVM and emulation
- 3D para-virtualization support using virtio-vga-gl (virgl)
- UEFI and TPM support (auto-configured for OSes that need it, like Windows 11)
- QCOWS2 Snapshot support.
- USB Pass-through support and management.
There is also a rich metadata library with ascii art, descriptions of OSes, and fun-facts.
VM Creation with IOMMU will require the following for GPU pass-through:
- a motherboard capable of proper IOMMU support.
- 2+ GPUs, plus a dummy HDMI or DP1.4 plug for the passed-through GPU
- Looking-Glass for display
VM-curator can host and manage other gpu-passthrough configurations, as the application supports editing each VM's launch script, but the above profile is what I'm planning to put into the creator system.
I have a TRX40 (Threadripper) motherboard, which will serve as an ample test-bed, but I still need to acquire a second GPU.
EnvyControl and supergfxctl support selecting between modes (integrated / hybrid / nvidia) to specify whether processes run on the iGPU or the dGPU(s).
https://github.com/bayasdev/envycontrol#hybrid
Bazzite has supergfxctl and the Nvidia modules installed in their OCI system images ("Native Containers"; ublue-os)
IIRC from (awhile ago) trying to run a Windows VM with GPU passthrough to the dGPU, a device selection gui would've helped
> After running this, the terminal will display a list of all your PCI devices, listed by their IOMMU group. Skim through the list until you find the IOMMU group that contains your dGPU.
I look forward to testing this out. I keep a windows VM mostly for updating hardware when there's no other way. USB passthrough is a feature that doesn't always work in a stable manner with libvirt.
How is this possible? I remember reading something about 3D para-virtualization not being supported on NVIDIA consumer GPUs.
I think you’re referring to the ability to split a physical NVIDIA GPU into multiple virtual GPUs so that you can do full GPU pass-through with one card (without having to resort to hacks like disconnecting host sessions.)
What vm-curator provides is an easy way to use QEMU”s built in para-virtualization (virtio-vga-gl, a.k.a. virgl) in a manner that works with NVIDIA cards. This is not possible using libvirt based tools because of a bug between libvirt and NVIDIA’s Linux drivers.
Does it fetch the hardrive inages for all these preconfigured ones from somewhere? That would be a huge timesaver.
No. I thought about that, but decided it would be too much of a hassle to maintain, plus it becomes legally problematic with non-FOSS, non-abandonware profiles (i.e. modern Windows and MacOS.)
Instead, for many profiles, it provides a link to the OS’s website (or archive.org) where you can download the installation media.
From https://news.ycombinator.com/item?id=46433355 re: quickemu, LXD snapshots and live migration, virtio-gpu-rutabaga:
> IOMMU GPU passthrough with device selection would be a helpful feature: https://www.google.com/search?q=gpu+passthrough+qemu
rutabaga_gfx does GPU paravirtualization: https://github.com/magma-gpu/rutabaga_gfx
IOMMU pass-through is the next feature I'm working on, but I felt it was now time to release the V1. Currently, vm-curator supports:
- VM creation with over 100 different OS profiles, built for KVM and emulation - 3D para-virtualization support using virtio-vga-gl (virgl) - UEFI and TPM support (auto-configured for OSes that need it, like Windows 11) - QCOWS2 Snapshot support. - USB Pass-through support and management.
There is also a rich metadata library with ascii art, descriptions of OSes, and fun-facts.
VM Creation with IOMMU will require the following for GPU pass-through: - a motherboard capable of proper IOMMU support. - 2+ GPUs, plus a dummy HDMI or DP1.4 plug for the passed-through GPU - Looking-Glass for display
VM-curator can host and manage other gpu-passthrough configurations, as the application supports editing each VM's launch script, but the above profile is what I'm planning to put into the creator system.
I have a TRX40 (Threadripper) motherboard, which will serve as an ample test-bed, but I still need to acquire a second GPU.
Systems with iGPU (CPU RAM) + dGPU (dedicated GPU RAM) support GPU passthrough IIUC.
With the proprietary Nvidia Linux module,
These environment variables cause processes to run on an Nvidia dGPU instead of the iGPU: https://download.nvidia.com/XFree86/Linux-x86_64/435.17/READ... :
EnvyControl and supergfxctl support selecting between modes (integrated / hybrid / nvidia) to specify whether processes run on the iGPU or the dGPU(s). https://github.com/bayasdev/envycontrol#hybridBazzite has supergfxctl and the Nvidia modules installed in their OCI system images ("Native Containers"; ublue-os)
IIRC from (awhile ago) trying to run a Windows VM with GPU passthrough to the dGPU, a device selection gui would've helped
Arch wiki > Supergfxctl > 5.1 Using supergfxctl for GPU passthrough (VFIO) https://wiki.archlinux.org/title/Supergfxctl#Using_supergfxc...
Linux for ROG notebooks > VFIO dGPU Passthrough Guide > VM Creation Walkthrough: https://asus-linux.org/guides/vfio-guide/#vm-creation-walkth... ;
> After running this, the terminal will display a list of all your PCI devices, listed by their IOMMU group. Skim through the list until you find the IOMMU group that contains your dGPU.
But then under "selinux considerations" it says: https://asus-linux.org/guides/vfio-guide/#selinux-considerat... :
> /etc/libvirt/qemu.conf and find this line: