- Linux Guest Installation Steps (Tested Kernel 6.2)
We will need to run the same driver under Linux guests. We can repeat the steps for installing the driver. However, when modifying command line defaults, we use i915.enable_guc=3 instead of i915.enable_guc=3 i915.max_vfs=7. Furthermore, we don't need to use sysfsutils to create any more VFs since we ARE using a VF. Once that's done, update grub and initramfs, then reboot. Once the VM is back up again, do dmesg | grep i915 to see if your VF is recognized by the kernel. Optionally, install vainfo, then do vainfo to see if the iGPU has been picked up by the VAAPI.
- Windows Guest
It is required to set the host CPU type in Proxmox to "host". I was able to get it working without further fiddling in the config files but your mileage may vary (i5-12500T with UHD 770). I've used Intel gfx version 4316 to get it working. Here's a link to download it. (https://www.intel.com/content/www/us/en/download/741626/780560/intel-arc-pro-graphics-windows.html)
- PVE Host Installation Steps (Tested Kernel 6.5 and 6.8)
- Clone this repo
- Install build tools: apt install build-* dkms
- Install the kernel and headers for desired version: apt install proxmox-headers-6.8.8-2-pve proxmox-kernel-6.8.8-2-pve (for unsigned kernel).
- Change into the root of the cloned repository and run dkms add ..
- Execute the command dkms install -m i915-sriov-dkms -v 2024.08.09 --force or dkms install -m i915-sriov-dkms -v $(cat VERSION) --force for a version-independent command.
- Once finished, the kernel commandline needs to be adjusted: nano /etc/default/grub and change GRUB_CMDLINE_LINUX_DEFAULT to intel_iommu=on i915.enable_guc=3 i915.max_vfs=7, or add to it if you have other arguments there already.
- Optionally pin the kernel version and update the boot config via proxmox-boot-tool.
- In order to enable the VFs, a sysfs attribute must be set. Install sysfsutils, then do echo "devices/pci0000:00/0000:00:02.0/sriov_numvfs = 7" > /etc/sysfs.conf, assuming your iGPU is on 00:02 bus. If not, use lspci | grep VGA to find the PCIe bus your iGPU is on.
- Reboot the system.
- When the system is back up again, you should see the number of VFs under 02:00.1 - 02:00.7. Again, assuming your iGPU is on 00:02 bus.
- You can passthrough the VFs to LXCs or VMs. However, never touch the PF which is 02:00.0 under any circumstances.
Tested kernel versions:
- Proxmox VE Host: pve-kernel-6.1.0-1-pve ~ 6.2.9-1-pve, proxmox-kernel-6.5.13-3-pve ~ 6.8.12-1-pve
- Debian 12 VM Guest: linux-image-6.5.0-0.deb12.4-amd64 ~ 6.7.12+bpo (6.1 requires custom kernel, see below)
- Ubuntu 22.04 VM Guest: linux-image-6.2.0-39-generic ~ 6.5.0-44-generic
- Gentoo VM Guest: gentoo-sources-6.1.19-gentoo ~ 6.2.11-gentoo
1、安装 dkms git
apt install build-* dkms git
2、安装头文件
apt update && apt install pve-headers-$(uname -r)
3、下载 sriov驱动
cd /usr/src
git clone https://github.com/strongtz/i915-sriov-dkms i915-sriov-dkms
4、等下载进度完成后，进入项目文件夹修改配置文件：
vi /usr/src/i915-sriov-dkms-6.5/dkms.conf
# 按需求改，比如下面
PACKAGE_NAME="i915-sriov-dkms"
PACKAGE_VERSION="6.5"
5、将项目文件夹拷贝至/usr/src目录并以i915-sriov-dkms-$PACKAGE_VERSION重命名
6、安装模块
dkms install --force -m i915-sriov-dkms -v 6.5
7、执行完毕可以通过以下命令查看状态
dkms status
8、修改grub
vi /etc/default/grub
# 注释掉现有GRUB_CMDLINE_LINUX_DEFAULT，然后粘贴下面的这行代码
GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt i915.enable_guc=3 i915.max_vfs=7"
9、更新 grub 并安装 sysfsutils
update-grub && update-initramfs -u && apt install sysfsutils -y
10、查看核显所在的总线
lspci | grep VGA
11、运行以下命令并根据需要修改 PCIe 总线编号，并指定生成VFS的数量3
echo "devices/pci0000:00/0000:00:02.0/sriov_numvfs = 3" > /etc/sysfs.conf
12、重启并通过lspci |grep VGA命令验证
13、如有报错err -2则执行命令apt install linux-modules-extra-6.X.X-X-generic
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