参考链接
- NVIDIA virtual GPU for KVM guests | SUSE Linux Enterprise Server 15 SP3
- deployment-guide-vgpu-Ampere-GPU.pdf
配置过程
配置要求
- BIOS启用SRIOV
- BIOS启用Above 4G encoding
- BIOS启用Intel VT-d
更详细信息可以参考一下链接
然后启用IOMMU，添加到grub上
cat /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-default [...] intel_iommu=on [...]
假如没有上述iommu字段，那就要添加/etc/default/grub
- Intel cpu
GRUB_CMDLINE_LINUX="intel_iommu=on"
- amd cpu
GRUB_CMDLINE_LINUX="amd_iommu=on"
生成一个新的grub文件
sudo grub2-mkconfig -o /boot/grub2/grub.cfg
然后禁用 nouveau kernel module
echo"blacklist nouveau" > /etc/modprobe.d/50-blacklist.conf
重启
sudo systemctl reboot
安装
在安装依赖包前，建议先安装国内源，且把旧的源删除
zypper clean zypper ref
清理缓存
安装 kernel-default-devel
zypper update zypper install kernel-default-devel dkms zypper install -t pattern devel_C_C++ devel_kernely
切换init模式
sudo init 3
安装vGPU驱动，这个驱动跟常规的驱动不一样，跟厂商那边获取
chmod+x NVIDIA-Linux-x86_64-470.82-vgpu-kvm.run ./NVIDIA-Linux-x86_64-470.82-vgpu-kvm.run --dkms
查看是否安装成功，假如能正确显示显卡信息，则代表安装成功
localhost:~ # nvidia-smiTue Dec 716:14:42 2021+-----------------------------------------------------------------------------+| NVIDIA-SMI 470.82 Driver Version: 470.82 CUDA Version: N/A | |-------------------------------+----------------------+----------------------+| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC | | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. | | | | MIG M. | |===============================+======================+======================| | 0 NVIDIA RTX A5000 On | 00000000:18:00.0 Off | Off | | 52% 78C P0 203W / 230W | 23936MiB / 24258MiB | 89% Default | | | | N/A | +-------------------------------+----------------------+----------------------+| 1 NVIDIA RTX A5000 On | 00000000:3B:00.0 Off | Off | | 54% 78C P0 199W / 230W | 23936MiB / 24258MiB | 74% Default | | | | N/A | +-------------------------------+----------------------+----------------------++-----------------------------------------------------------------------------+| Processes: | | GPU GI CI PID Type Process name GPU Memory | | ID ID Usage | |=============================================================================| | 0 N/A N/A 14174 C+G vgpu 23936MiB | | 1 N/A N/A 14174 C+G vgpu 23936MiB | +-----------------------------------------------------------------------------+
还需要查看nvidia module
localhost:~ # lsmod | grep nvidianvidia_vgpu_vfio 6963236nvidia 353648643722mdev 286722 vfio_mdev,nvidia_vgpu_vfio vfio 409608 vfio_mdev,nvidia_vgpu_vfio,vfio_iommu_type1 drm 6144007 drm_kms_helper,drm_vram_helper,ast,nvidia,drm_ttm_helper,ttm
nvidia vGPU有两种模式：
- profile
- mig
首先A5000不支持MIG模式，以下输出信息可知
localhost:~ # nvidia-smi -i 0 -mig 1Unable to enable MIG Mode for GPU 00000000:18:00.0: Not Supported Treating as warning and moving on. All done.
所以我们需要使用的profile的配置方式
在刚安装完驱动后，先重启机器，重启后，启用显卡设备
sudo /usr/lib/nvidia/sriov-manage -e00:18:0000.0 sudo /usr/lib/nvidia/sriov-manage -e00:3b:0000.0 cd /sys/bus/pci/devices/0000:18:00.0/virtfn0/mdev_supported_types for i in *; doecho""$(cat $i/name) available: $(cat $i/avail*); doneNVIDIA RTXA5000-1B available: 0 NVIDIA RTXA5000-2B available: 0 NVIDIA RTXA5000-1Q available: 0 NVIDIA RTXA5000-2Q available: 0 NVIDIA RTXA5000-3Q available: 0 NVIDIA RTXA5000-4Q available: 0 NVIDIA RTXA5000-6Q available: 0 NVIDIA RTXA5000-8Q available: 0 NVIDIA RTXA5000-12Q available: 0 NVIDIA RTXA5000-24Q available: 0 NVIDIA RTXA5000-1A available: 0 NVIDIA RTXA5000-2A available: 0 NVIDIA RTXA5000-3A available: 0 NVIDIA RTXA5000-4A available: 0 NVIDIA RTXA5000-6A available: 0 NVIDIA RTXA5000-8A available: 0 NVIDIA RTXA5000-12A available: 0 NVIDIA RTXA5000-24A available: 0 NVIDIA RTXA5000-4C available: 0 NVIDIA RTXA5000-6C available: 0 NVIDIA RTXA5000-8C available: 0 NVIDIA RTXA5000-12C available: 0 NVIDIA RTXA5000-24C available: 0uuidgen f715f63c-0d00-4007-9c5a-b07b0c6c05de sudoecho"f715f63c-0d00-4007-9c5a-b07b0c6c05de" > nvidia-666/create sudo dmesg | tail [...] [ 3218.491843] vfio_mdev f715f63c-0d00-4007-9c5a-b07b0c6c05de: Adding to iommu group 322[ 3218.499700] vfio_mdev f715f63c-0d00-4007-9c5a-b07b0c6c05de: MDEV: group_id =322[ 3599.608540] vfio_mdev f715f63c-0d00-4007-9c5a-b07b0c6c05de: Removing from iommu group 322[ 3599.616753] vfio_mdev f715f63c-0d00-4007-9c5a-b07b0c6c05de: MDEV: detaching iommu [ 3626.345530] vfio_mdev f715f63c-0d00-4007-9c5a-b07b0c6c05de: Adding to iommu group 322[ 3626.353383] vfio_mdev f715f63c-0d00-4007-9c5a-b07b0c6c05de: MDEV: group_id =322
