fyi, passing both pci=realloc pci=nocrs works as a workaround for me for
q35 guests.
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Title:
Unable to passthrough GPUs to guest
To manage notif
** Attachment added: "lspci.uefi.pci=realloc,pci=nocrs"
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/1849563/+attachment/5305739/+files/lspci.uefi.pci%3Drealloc%2Cpci%3Dnocrs
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Attaching a boot log using an OVMF built w/ DEBUG enabled, which adds
some more runes, such as:
PciBus: HostBridge->NotifyPhase(AllocateResources) - Out of Resources
PciBus: [01|00|00] was rejected due to resource confliction.
** Attachment added: "uefi boot log w/ OVMF DEBUG enabled"
https:
** Attachment added: "lspci.uefi"
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/1849563/+attachment/5305738/+files/lspci.uefi
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U
** Attachment added: "lspci.seabios"
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/1849563/+attachment/5305737/+files/lspci.seabios
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Titl
Discussion thread on edk2 list:
https://edk2.groups.io/g/discuss/topic/ovmf_resource_assignment/59340711?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,0,59340711
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Hi Dann, thanks a lot for your logs and pretty great bug report here.
The thread with edk2 folks is really informative!
I've been doing some research on this topic, and will share here in order to
document it.
So, first thing is about "pci=nocrs" "pci=realloc". When setting "pci=nocrs",
we are t
I retested w/ q35 and did not have an issue. Here's the command I used:
virt-install --name q35 --machine q35 --memory 4096 --boot uefi --disk
/home/ubuntu/q35.img --disk q35-seed.img --hostdev pci__34_00_0
--hostdev pci__36_00_0 --graphics none
But, by default, virt-install placed the de
Urgh, sorry - ignore comment #5. The only reason I didn't see issues is
that I hadn't yet installed nvidia-dkms in the guest :( Even with q35 I
see the "NVRM: This PCI I/O region assigned to your NVIDIA device is
invalid:" and following messages. Further, in q35 mode, pci=nocrs no
longer seems to b
What is host architecture?
Does host support gpu passthrough?
Was it enabled in Bios settings, and to the kernel commandline?
I.e. VT-d enabled in BIOS + intel_iommu=on passed on the kernel
commandline for an Intel based machine. Similarish things need to happen
on other platforms, ie. AMD. As the
** Changed in: edk2 (Ubuntu Bionic)
Status: New => Confirmed
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Title:
Unable to passthrough GPUs to guest
To manage notifications about th
As an experiment, I retried this test with focal host/guest (on the off-
chance that e.g. we were missing something from QEMU or some topology
logic in virtinst), but the results were the same.
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** Attachment added: "dmesg when booting in non-UEFI mode (OK)"
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/1849563/+attachment/5299616/+files/dmesg.seabios
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** Attachment added: "dmesg of guest after hitting issue #2 (invalid I/O
region)"
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/1849563/+attachment/5299615/+files/dmesg
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https:/
** Attachment added: "guest XML (hits issue #1, no output)"
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/1849563/+attachment/5299614/+files/foo.xml
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cpaelzer recommends that we retest w/ the q35 machine type as a next
step.
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Title:
Unable to passthrough GPUs to guest
To manage notifications a
On Thu, Nov 7, 2019 at 7:50 AM Dimitri John Ledkov
wrote:
>
> What is host architecture?
amd64 - specifically, an Nvidia DGX2 system.
> Does host support gpu passthrough?
> Was it enabled in Bios settings, and to the kernel commandline?
>
> I.e. VT-d enabled in BIOS + intel_iommu=on passed on th
The Groovy Gorilla has reached end of life, so this bug will not be
fixed for that release
** Changed in: edk2 (Ubuntu Groovy)
Status: Confirmed => Won't Fix
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** Changed in: edk2 (Ubuntu Eoan)
Status: Confirmed => Won't Fix
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Title:
Unable to passthrough GPUs to guest, due to PCI64 aperture limita
** Tags added: sts
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Title:
Unable to passthrough GPUs to guest, due to PCI64 aperture limitation
To manage notifications about this bug go to:
h
Upstream discussion: https://bugzilla.tianocore.org/show_bug.cgi?id=2796
** Summary changed:
- Unable to passthrough GPUs to guest
+ Unable to passthrough GPUs to guest, due to PCI64 aperture limitation
** No longer affects: edk2 (Ubuntu Disco)
** Also affects: edk2 (Ubuntu Groovy)
Importanc
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