Public bug reported:
I'm having issues passing Nvidia Tesla GPUs to an OVMF-mode guest. While
I can passthrough other devices to an OVMF-mode guest w/o a problem
(e.g. Mellanox Connect-X 5 VFs), I'm seeing a couple different failure
modes when passing through a GPU:
1) No output:
---------
$ virsh start virtinst; virsh console virtinst
Domain virtinst started
Connected to domain virtinst
Escape character is ^]
---------
I discovered that I'm able to avoid this by placing the device on a
different BSF in the guest.
This results in a hang:
<address type='pci' domain='0x0000' bus='0x00' slot='0x0b' function='0x0'/>
Whilst this gets us further:
<address type='pci' domain='0x0000' bus='0x05' slot='0x02'
function='0x0'/>
Though that too fails after OS boot as described next:
2) OS boots, device appears within, but the kernel is unable to
configure resources:
[ 4.744211] nvidia-nvlink: Nvlink Core is being initialized, major device
number 241
[ 4.750811] NVRM: This PCI I/O region assigned to your NVIDIA device is
invalid:
[ 4.750811] NVRM: BAR1 is 0M @ 0x0 (PCI:0000:01:02.0)
[ 4.756960] NVRM: The system BIOS may have misconfigured your GPU.
[ 4.759725] nvidia: probe of 0000:01:02.0 failed with error -1
[ 4.762347] NVRM: The NVIDIA probe routine failed for 1 device(s).
[ 4.766010] NVRM: None of the NVIDIA devices were initialized.
[ 4.769701] nvidia-nvlink: Unregistered the Nvlink Core, major device number
241
I've found that #2 can be worked around w/ 'pci=nocrs'.
Neither issue is reproducible when booting in non-UEFI mode.
I observed this with bionic's ovmf 0~20180205.c0d9813c-2ubuntu0.1, and
it is reproducible with Debian's 0~20190828.37eef910-3, and a manually
built version of the latest upstream edk2 (@412c96384). Kernel-wise, I
experimented with upgrading the guest and later the host from bionic's
4.15 GA to 5.3 hwe-edge kernel w/o any noticeable change in behavior.
** Affects: edk2 (Ubuntu)
Importance: Undecided
Status: New
** Affects: edk2 (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: edk2 (Ubuntu Disco)
Importance: Undecided
Status: New
** Affects: edk2 (Ubuntu Eoan)
Importance: Undecided
Status: New
** Affects: edk2 (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: edk2 (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: edk2 (Ubuntu Disco)
Importance: Undecided
Status: New
** Also affects: edk2 (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: edk2 (Ubuntu Eoan)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1849563
Title:
Unable to passthrough GPUs to guest
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/1849563/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
