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[Xen-users] Unable to add passthrough devices to my domu?

  • To: <xen-users@xxxxxxxxxxxxxxxxxxxx>
  • From: "Marc Tousignant" <myrdhn@xxxxxxxxx>
  • Date: Thu, 14 Mar 2019 12:32:01 -0400
  • Delivery-date: Thu, 14 Mar 2019 16:33:08 +0000
  • List-id: Xen user discussion <xen-users.lists.xenproject.org>
  • Thread-index: AdTagb6FQyrcANcaROes5EgMiVIYvA==

I’m attempting to start my domu where I am passing through a network card for exclusive use. But I get an error that it cannot be assigned no IOMMU, but I do have it enabled in the grub config.

Ideas, recommendations?


xl create /etc/xen/MAIL.cfg

Parsing config from /etc/xen/MAIL.cfg

libxl: error: libxl_pci.c:1200:libxl__device_pci_add: Domain 1:PCI device 0000:04:00.3 cannot be assigned - no IOMMU?

libxl: error: libxl_pci.c:1295:libxl__add_pcidevs: Domain 1:libxl_device_pci_add failed: -1

libxl: error: libxl_create.c:1514:domcreate_attach_devices: Domain 1:unable to add pci devices

libxl: error: libxl_domain.c:1000:libxl__destroy_domid: Domain 1:Non-existant domain

libxl: error: libxl_domain.c:959:domain_destroy_callback: Domain 1:Unable to destroy guest

libxl: error: libxl_domain.c:886:domain_destroy_cb: Domain 1:Destruction of domain failed


menuentry "Gentoo on Xen - kernel-genkernel-x86_64-4.20.7-aufs" {

  insmod diskfilter

  insmod mdraid09

  insmod part_msdos

  insmod part_msdos

  insmod ext2

  set root=(mduuid/39334be1a4d2eb58c44c77eb7ee19756)

  search --no-floppy --fs-uuid --set 4bf29820-58b2-48e2-a782-95ba04ec348f

  multiboot /xen.gz loglvl=all guest_loglvl=all xsave=1 iommu=1 iommu_inclusive_mapping=1 ucode=auto

  module /kernel-genkernel-x86_64-4.20.7-aufs domdadm xen-pciback.permissive xen-pciback.passthrough=1 xen-pciback.hide=(0000:04:00.0)(0000:04:00.1)(0000:04:00.2)(0000:04:00.3) real_ root=/dev/md1 rootfstype=ext4 rand_id=P0UJKUSZ

  module /initramfs-genkernel-x86_64-4.20.7-aufs

  set gfxpayload=keep


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