PVE环境配置Intel核显SR-IOV

前言#

本文将介绍如何在Proxmox VE（PVE）环境中配置Intel核显的SR-IOV功能，让单个物理核显能够被多台虚拟机调用使用，从而提高图形处理性能，本文用的设备是 N100 的 CPU。

1
理论支持所有12代以后的 Intel 带核显的处理器
2
常见支持列表:
3
N100 N150 N200 N350 N355 8505
4
I3 12XXX 13XXX 14XXX
5
I5 12XXX 13XXX 14XXX
6
I7 12XXX 13XXX 14XXX
7
I9 12XXX 13XXX 14XXX
8
U5 245 U7 265 U9 285
9
确认支持列表Meteor-lake确认支持:
10
https://github.com/strongtz/i915-sriov-dkms/issues/210#issuecomment-2701882332
11
https://www.intel.com/content/www/us/en/ark/products/codename/232598/products-formerly-alder-laken.html
12
https://www.intel.com/content/www/us/en/ark/products/codename/238004/products-formerly-twin-lake.html
13
https://www.intel.com/content/www/us/en/ark/products/codename/147470/products-formerly-alder-lake.html
14
https://www.intel.com/content/www/us/en/ark/products/codename/215599/products-formerly-raptor-lake.html
15
https://www.intel.com/content/www/us/en/ark/products/series/241071/intel-core-ultra-processors-series-2.html
16
https://www.intel.com/content/www/us/en/ark/products/codename/90353/products-formerly-meteor-lake.html

替换默认PVE9源 PS:不带ceph源

1
wget http://share.geekxw.top/pve9yuan.sh -O pve9yuan.sh && chmod +x pve9yuan.sh && ./pve9yuan.sh
2

3
apt update

配置GRUB参数

1
nano /etc/default/grub
2
在 GRUB_CMDLINE_LINUX_DEFAULT 中添加 "i915.enable_guc=3 i915.max_vfs=7 module_blacklist=xe"
3
update-grub

安装必要的软件包

1
apt install -y build-essential git dkms sysfsutils proxmox-headers-$(uname -r) intel-gpu-tools

配置SR-IOV(这里 7 指的是虚拟显卡的数量，可以根据需要调整)

1
echo "devices/pci0000:00/0000:00:02.0/sriov_numvfs = 7" >> /etc/sysfs.conf

安装i915-sriov驱动

1
# 下载地址：https://github.com/strongtz/i915-sriov-dkms/releases
2
dpkg -i i915-sriov-dkms_*_amd64.deb

重启系统使配置生效

1
reboot

验证配置是否生效

1
lspci
2

3
# 会显示所有的虚拟核显
4
root@longtailpve:~# lspci
5
00:00.0 Host bridge: Intel Corporation Alder Lake-N Processor Host Bridge/DRAM Registers
6
00:02.0 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]
7
00:02.1 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]
8
00:02.2 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]
9
00:02.3 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]
10
00:02.4 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]
11
00:02.5 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]
12
00:02.6 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]
13
00:02.7 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]

PVE 查看显卡占用情况

1
intel_gpu_top -d sriov