vfio_iommu_type1模块实现了对IOMMU(Input-Output Memory Management Unit,输入/输出内存管理单元)类型1的支持,允许虚拟机或用户空间程序直接访问和管理物理硬件资源,如PCI设备。 2. 解释allow_unsafe_interrupts参数的作用 allow_unsafe_interrupts是vfio_iommu_type1模块的一
3.虚拟机不能开机,failed to set iommu forContainer 可能的原因,vfio_iommu_type1.allow_unsafe_interrupts没有开启 开启vfio_iommu_type1.allow_unsafe_interrupts之后,虚拟机可以启动了 也可以在系统启动的时候,就开启vfio_iommu_type1.allow_unsafe_interrupts 4.虚拟机不能开机,/dev/vfio/16 Operation not per...
内核启动参数enable IOMMU BIOS 中打开,内核编译选项勾选还不够。还需要在引导程序中添加上内核启动参数 对应编辑 /etc/default/grub, 设置 GRUB_CMDLINE_LINUX= $ cat /etc/default/grub ... GRUB_CMDLINE_LINUX="intel_iommu=on iommu=pt vfio_iommu_type1.allow_unsafe_interrupts=1 rdblacklist=nouveau nou...
exit 1 fi done 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 如果硬件不支持interrupt remapping,需要执行 echo "options vfio_iommu_type1 allow_unsafe_interrupts=1" > /etc/modprobe.d/iommu_unsafe_interrupts.conf 1. 加载vfio驱动 modprobe vfio modprobe vfio-pci 1. 2. 安装OVMF引导虚拟机(OVMF...
... GRUB_CMDLINE_LINUX="intel_iommu=on iommu=pt vfio_iommu_type1.allow_unsafe_interrupts=1 rd...
} else if (cmd == VFIO_IOMMU_MAP_DMA) { struct vfio_iommu_type1_dma_map map; uint32_t mask = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE; minsz = offsetofend(struct vfio_iommu_type1_dma_map, size); if (copy_from_user(&map, (void __user *)arg, minsz)) ...
$ sudo modprobe vfio_pci $ sudo modprobe vfio_iommu_type1 allow_unsafe_interrupts Then we unbind it from its native driver:$ echo 0000:01:00.0 > /sys/bus/pci/devices/0000\:01\:00.0/driver/unbind And finally we bind it to the VFIO driver. To do that we first need to get the ...
Re: [Qemu-discuss] Error starting domain: vfio-pci Hello, I managed to isolate the error. Now I am wondering if I can ask for a change in the code or not, here the explanation:
1. Edit the /boot/grub2/grub.conf like this Add the kernel option 'intel_iommu=on' 2.Execute below commands: modprobe -r kvm_intel modprobe -r kvm modprobe kvm allow_unsafe_assigned_interrupts=1 modprobe kvm_intel 3. Generate VFs modprobe -r igb modprobe igb max_vfs=7 Reproduced steps...
append initrd=/bzroot vfio_iommu_type1.allow_unsafe_interrupts=1 pcie_aspm=off isolcpus=14-27,42-55 video=efifb:off “` Cheers! Reply Richardsays: August 15, 2021 at 8:18 am just wanted to say THANKS SO MUCH !!! This is working way better than without it, not perfect, but close ...