📂 Projects > 🛡️ SRIOV VM
This project achieves high-performance Windows 11 gaming/productivity within a KVM/QEMU environment by utilizing Intel SR-IOV (Single Root I/O Virtualization). Unlike traditional GVT-g or full PCI passthrough, SR-IOV allows the physical iGPU to be split into multiple Virtual Functions (VFs), enabling the Host (Kubuntu) and Guest (Windows) to share the hardware simultaneously with near-native performance.
* CPU: Intel Ultra 7 265k (Arrow Lake-S) * Kernel: `6.19.6-x64v3-xanmod1` (Pinned/Held to match DKMS version) * Primary Driver: `i915-sriov-dkms` * iGPU PF: `0000:00:02.0` (Physical Function) * iGPU VF: `0000:00:02.1` (Virtual Function passed to VM) * GuC Status: `enable_guc=3` (Mandatory for SR-IOV)
* Name: `rsl-clone1working-igpui-clone-recovered` * OS: Windows 11 Pro * vCPU: 4 Cores (Host-Passthrough, Pinned 0-3) * Memory: 8GB (memfd, shared access) * Display: iGPU VF + Custom ROM (`/usr/share/vgabios/arrow_lake_igpu.rom`) * Storage: VirtIO SCSI (`recovered.qcow2`) * Network: VirtIO
While the SRIOV VM is running, the Host's KWin compositor can trigger iGPU Hangs during animation events (like notification popups). * Fix: Disabled Blur and Background Contrast effects in KWin. * Status: STABLE.
To prevent the `i915-sriov-dkms` driver from breaking during routine updates, the Xanmod kernel is locked via `apt-mark hold`. * Command: `sudo apt-mark hold linux-image-6.19.6-x64v3-xanmod1`
* Governor: `performance` * Mitigations: Disabled for lower latency. * PCIe ASPM: Disabled to prevent VF disconnects.
| Date | Action | Outcome |
|---|---|---|
| 2026-03-19 | Fixed `check_sriov_health.sh` path | Script now correctly detects `sriov_numvfs` |
| 2026-03-19 | Disabled KWin Blur Effects | Resolved host display crashes during notifications |
| 2026-03-19 | Applied APT Kernel Hold | Prevented accidental driver breakage from kernel updates |
| 2026-03-16 | Aligned Xanmod Kernel | Downgraded to 6.19.6 to match DKMS module support |
| 2026-03-15 | Disk/Network Migration | Boot disk moved to VirtIO SCSI; NIC moved to VirtIO |
| 2026-03-21 | npm dependency sync & DokuWiki sync | Successfully updated all project dependencies in the app/ directory. |
| 2026-03-21 | Btrfs Performance Tuning | Updated /etc/fstab with commit=60 and zstd compression. |
| 2026-03-21 | VM IOThreads & Hugepages | Added IOThread (Core 4) and Hugepage support to recovered_vm.xml. |
| 2026-03-21 | HUD Security Watcher | Added “Bright Red” VF Hijack alert to Conky HUD via security_audit.sh. |
| 2026-03-22 | Performance Verification | iGPU VF verified in guest (Status: OK), Host-Guest stability confirmed (97% Idle, 39W Pkg Power). |