Arch Linux

blastbeng

Member

Registered: 2019-11-19

Posts: 1

QEMU GPU Passthrough - group X is not viable

Hi,
I'm trying to create a VM with GPU passthrough enabled, I followed the steps on the wiki:

https://wiki.archlinux.org/index.php/PC … h_via_OVMF

but when attaching my GPU using the virt-manager and starting it I'm getting the following error:

Impossibile completare l'installazione: 'internal error: qemu unexpectedly closed the monitor: 2019-11-19T09:53:05.818684Z qemu-system-x86_64: -device vfio-pci,host=0000:01:00.0,id=hostdev0,
bus=pci.4,addr=0x0: vfio 0000:01:00.0: group 1 is not viable
Please ensure all devices within the iommu_group are bound to their vfio bus driver.'

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 75, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/createvm.py", line 2089, in _do_async_install
    guest.installer_instance.start_install(guest, meter=meter)
  File "/usr/share/virt-manager/virtinst/install/installer.py", line 542, in start_install
    domain = self._create_guest(
  File "/usr/share/virt-manager/virtinst/install/installer.py", line 491, in _create_guest
    domain = self.conn.createXML(install_xml or final_xml, 0)
  File "/usr/lib/python3.8/site-packages/libvirt.py", line 3928, in createXML
    if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirt.libvirtError: internal error: qemu unexpectedly closed the monitor: 2019-11-19T09:53:05.818684Z qemu-system-x86_64: -device vfio-pci,host=0000:01:00.0,id=hostdev0,bus=pci.4,addr=0x0:
 vfio 0000:01:00.0: group 1 is not viable
Please ensure all devices within the iommu_group are bound to their vfio bus driver.

My iommu groups are:

IOMMU Group 0:
00:00.0 Host bridge [0600]: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers [8086:3ec4] (rev 07)
IOMMU Group 1:
00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) [8086:1901] (rev 07)
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation TU106M [GeForce RTX 2060 Mobile] [10de:1f11] (rev a1)
01:00.1 Audio device [0403]: NVIDIA Corporation TU106 High Definition Audio Controller [10de:10f9] (rev a1)
01:00.2 USB controller [0c03]: NVIDIA Corporation TU106 USB 3.1 Host Controller [10de:1ada] (rev a1)
01:00.3 Serial bus controller [0c80]: NVIDIA Corporation TU106 USB Type-C Port Policy Controller [10de:1adb] (rev a1)
IOMMU Group 10:
00:1f.0 ISA bridge [0601]: Intel Corporation Device [8086:a30d] (rev 10)
00:1f.3 Audio device [0403]: Intel Corporation Cannon Lake PCH cAVS [8086:a348] (rev 10)
00:1f.4 SMBus [0c05]: Intel Corporation Cannon Lake PCH SMBus Controller [8086:a323] (rev 10)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller [8086:a324] (rev 10)
IOMMU Group 11:
02:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983 [144d:a808]
IOMMU Group 12:
03:00.0 Ethernet controller [0200]: Qualcomm Atheros Killer E2500 Gigabit Ethernet Controller [1969:e0b1] (rev 10)
IOMMU Group 2:
00:02.0 VGA compatible controller [0300]: Intel Corporation UHD Graphics 630 (Mobile) [8086:3e9b]
IOMMU Group 3:
00:12.0 Signal processing controller [1180]: Intel Corporation Cannon Lake PCH Thermal Controller [8086:a379] (rev 10)
IOMMU Group 4:
00:14.0 USB controller [0c03]: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller [8086:a36d] (rev 10)
00:14.2 RAM memory [0500]: Intel Corporation Cannon Lake PCH Shared SRAM [8086:a36f] (rev 10)
00:14.3 Network controller [0280]: Intel Corporation Wireless-AC 9560 [Jefferson Peak] [8086:a370] (rev 10)
IOMMU Group 5:
00:15.0 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH Serial IO I2C Controller #0 [8086:a368] (rev 10)
00:15.2 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH Serial IO I2C Controller #2 [8086:a36a] (rev 10)
IOMMU Group 6:
00:16.0 Communication controller [0780]: Intel Corporation Cannon Lake PCH HECI Controller [8086:a360] (rev 10)
IOMMU Group 7:
00:17.0 SATA controller [0106]: Intel Corporation Cannon Lake Mobile PCH SATA AHCI Controller [8086:a353] (rev 10)
IOMMU Group 8:
00:1d.0 PCI bridge [0604]: Intel Corporation Cannon Lake PCH PCI Express Root Port #9 [8086:a330] (rev f0)
IOMMU Group 9:
00:1d.6 PCI bridge [0604]: Intel Corporation Cannon Lake PCH PCI Express Root Port #15 [8086:a336] (rev f0)

content of /etc/modprobe.d/vfio.conf

options vfio-pci ids=10de:1f11,10de:10f9

i also have blacklisted nvidia drivers:

cat /etc/modprobe.d/blacklist-nouveau.conf 
blacklist nouveau

My startup kernel parameters:

GRUB_CMDLINE_LINUX_DEFAULT="loglevel=3 quiet nouveau.modeset=0 intel_iommu=on iommu=pt vfio-pci.ids=10de:1f11,10de:10f9"

What am i doing wrong?
I am a newbie on this, but I've been using linux (other distros) for years

Does it happen because my GPU (RTX 2060) is on the same IOMMU group with other devices?

Also I've found this: https://bbs.archlinux.org/viewtopic.php?id=230229
But I haven't understood very well

Thanks in advance

Last edited by blastbeng (2019-11-19 10:42:47)