ledemon

升级到7.4.0不能用sr-iov的 用ich777的插件及最新版的驱动后，如果还不能用。可能就是因为 宿主这份 i915 是 2026.09.16 之后的版本，xelp_enable_ccs 默认是 0（CCS0 关闭）；飞牛里那份 2026.05.06 属于官方点名"隐式依赖 CCS0"的旧驱动。两头对不上，VF 在初始化时被判 wedged，媒体引擎不挂载，所以 iHD 起来就失败、影视报"获取/设置GPU失败"。 /boot/config/modprobe.d/i915.conf 自己改下文件。 i915 force_probe=4692 xelp_enable_ccs=1 blacklist i915 加上“xelp_enable_ccs=1”然后重启。搞定。

Fix Intel iGPU SR-IOV on Unraid 7.3.2My SetupUnraid 7.3.2 Kernel: 6.18.38-Unraid CPU: Intel Core i3-12100 iGPU: Intel UHD Graphics 730 (8086:4692) SR-IOV driver: i915-sriov 2026.05.06 Guests: Windows 11 and FnOS VM type: Q35 + OVMF ProblemsFnOS detected the Intel VF but could not initialize it. The guest log reported: BAR 0: can't assign; no space Windows 11 detected Intel UHD Graphics 730 but reported Code 43. CausesThere were two problems: The Q35 PCIe root-port memory window was too small for the Intel VF. Windows VBS/Hypervisor caused Code 43. Fix for Both FnOS and Windows 11Shut down the VM, then open: Unraid → VMs → Edit → XML View Change the first XML line from: <domain type='kvm'> To: <domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> Add the following lines immediately before the final </domain> line: qemu:commandline <qemu:arg value='-global'/> <qemu:arg value='pcie-root-port.mem-reserve=32M'/> </qemu:commandline> Save the XML and start the VM. FnOS also needs an i915-sriov guest driver built for its exact kernel. My FnOS configuration: Kernel: 6.18.18.c1032-trim Guest driver: i915-sriov 2026.05.06 After these changes, FnOS successfully entered SR-IOV VF mode and loaded the i915 driver. Additional Fix for Windows 11Open “Turn Windows features on or off” and disable: Hyper-V Virtual Machine Platform Windows Hypervisor Platform Then open PowerShell as Administrator and run: bcdedit /set hypervisorlaunchtype off Fully shut down the VM: shutdown /s /t 0 Wait until Unraid shows the VM as stopped, then start it again. ResultFnOS: Intel VF successfully binds to i915. Windows 11: Intel UHD Graphics 730 Code 43 disappears. Both VMs require: pcie-root-port.mem-reserve=32M Windows 11 additionally requires: hypervisorlaunchtype off