gvt-linux

Intel has already confirmed that GVT-g is essentially dead and not supported on their Iris/Xe or anything newer graphics.. We can also confirm this via their own drivers source.. https://github.com/intel/gvt-linux/blob/gvt-staging/drivers/...

Not really pass through, no. If CONFIG_DRM_I915_GVT is enabled in your kernel, you can use Intel's graphics virtualization system... basically a virtio style virtual device that shares the GPU between VM and host. IMO this is way more convenient than real passthrough, where the device is only available either to the VM or the host. The downside is that you don't get full performance in the VM. "Intel GVT-g is a full GPU virtualization solution with mediated pass-through (VFIO mediated device framework based), starting from 5th generation Intel Core(TM) processors with Intel Graphics processors. GVT-g supports both Xen and KVM (a.k.a XenGT & a.k.a KVMGT). A virtual GPU instance is maintained for each VM, with part of performance critical resources directly assigned. The capability of running native graphics driver inside a VM, without hype

To be clear, I never said it was dead, only a dead end. As for GVT-g and Xe, according to a post in this[0] issue by one of the Intel devs, Rocket Lake (Xe) is not getting support and only does GVT-d. Also in the same issue, someone pointed out that Intel themselves have states as much here[1]. I hope I am proven wrong in the end and GVT-g comes to then entire Xe and ARC lineup. Intel's communication on this matter has been...lacking. 0: https://github.com/intel/gvt-linux/issues/190 1: https://www.intel.com/content/www/us/en/support/articles/000...

Based on my reading of the link you provided I don't believe support for GVT-g has been removed. You can see the GVT-Linux repository is also still receiving commits: https://github.com/intel/gvt-linux

More like did not prioritize it. https://github.com/intel/gvt-linux/issues/126

Hello, Intel GVT-g is not supported on Gen11 and Gen12 gen Intel Graphics. It's only supported on Gen9 and earlier. About Intel discrete graphics: https://github.com/intel/gvt-linux/issues/160 > Internally we have some prototype but there is no formal plan to support GVT-g on discrete GPU like DG1 and about integrated later ones: https://github.com/intel/gvt-linux/issues/126 > until now there is no plan on it. Hopefully that clarifies it a bit...

If you had asked me about NVIDIA, since I run Wayland on Linux, I would have probably been much more biased. Regarding the last point, you can learn more about it here: https://wiki.archlinux.org/index.php/Intel_GVT-g Or, on their official GitHub Wiki: https://github.com/intel/gvt-linux/wiki/GVTg_Setup_Guide AMD's similar MxGPU is only available on Radeon Pro and their Workstation graphics: https://www.amd.com/en/graphics/workstation-virtual-graphics Regarding other factors to consider, I really don't have anything else. If ECC is important, then as you mentioned Intel doesn't offer ECC on these chipsets. Additionally, AMD's advanced security features like memory guard is only available on the PRO processors, however there are versions of the 4650GE Pro and 4750GE Pro for a descent price point: https://www.amd.com/en/technologies/pro-secu

There's nothing stable that I know of, but watch out for VIRGL [0][1] (KVM). Currently only for Linux, but maybe some day Windows could support it. For Intel hardware, there's GPU virtualization called GVT-g [2], and the docs mention Windows. If you're on a desktop, GPU passthrough would be the easiest option. [0] https://virgil3d.github.io/ [1] https://www.reddit.com/r/archlinux/comments/7nmceg/kvmqemu_w... [2] https://github.com/intel/gvt-linux/wiki/GVTg_Setup_Guide