![]() Note: See if you like an article with a How-To approach. More information can be found at Alex Williamson's blog. To the kernel boot command line (grub or systemd-boot) options. However, this should be seen as a last optionĪs of writing, the ACS patch is part of the Proxmox VE kernel and can be invoked via Editing the kernel command line. Should that not work, you can try using Alex Williamson's ACS override patch. If you don't have dedicated IOMMU groups, you can try moving the card to another PCI slot. Make sure you enable the corresponding setting in your BIOS for this. To have separate IOMMU groups, your processor needs to have support for a feature called ACS (Access Control Services). │ class │ device │ id │ iommugroup │ vendor │ device_name │ # pvesh get /nodes/ with the name of your node. If your system doesn't support interrupt remapping, you can allow unsafe interrupts with:Įcho "options vfio_iommu_type1 allow_unsafe_interrupts=1" > /etc/modprobe.d/iommu_unsafe_nfįor working PCI passthrough, you need a dedicated IOMMU group for all PCI devices you want to assign to a VM.
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