NVidia T4 Passtrought problem

DidierM

Member
Sep 29, 2020
2
0
6
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Hello
First of all, excuse me for my approximate English ;-)

I have a problem whith NVidia two Tesla4

My hardware, Dell Poweredge 740XD whit two Intel Xeon silver.
Proxmox 6.2
I want to do Microsoft rdp, with graphical softwares

I'm trying to make a passthrough for one Nvidia T4. I made the cards appear in the hardware list. For Windows 2019. see picture1.jpg
But it's no working. see picture 2

I can add my card in the hardware list see picture 3

here are my configuration files :

/etc/default/grub
GRUB_DEFAULT=0
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="Proxmox Virtual Environment"
GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt pcie_acs_override=downstream,multifonctio$
GRUB_CMDLINE_LINUX=""
GRUB_DISABLE_OS_PROBER=true


/etc/modules
vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd

/etc/modprobe.d/blacklist.conf
blacklist radeon
blacklist nouveau
blacklist nvidia

/etc/modprobe.d/iommu_unsafe_interrupts.conf
options vfio_iommu_type1 allow_unsafe_interrupts=1

/etc/modprobe.d/kvm.conf
options kvm ignore_msrs=1 report_ignored_msrs=0
options vfio_iommu_type1 allow_unsafe_interrupts=1


/etc/modprobe.d/pve-blacklist.conf
blacklist nvidiafb

/etc/modprobe.d# nano vfio.conf
options vfio-pci ids=10de:1eb8 disable_vga=1

options vfio_iommu_type1 allow_unsafe_interrupts=1


I have an error :
dmesg | grep 'remapping'
[ 11.778987] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping.
[ 11.781334] DMAR-IR: Enabled IRQ remapping in x2apic mode

lspci gives :
root@FCU-IFL1:/etc/modprobe.d# lspci -n -s d8:00
d8:00.0 0302: 10de:1eb8 (rev a1)
root@FCU-IFL1:/etc/modprobe.d# lspci -n -s 3b:00
3b:00.0 0302: 10de:1eb8 (rev a1)

I think I'm close to the solution
Thank you for your help

Didier
 

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  • picture2.jpg
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Hello

I'm moving forward.
I think the problem comes from the :

Kernel modules: nvidia and not VFIO_PCI

I am at the limit of my linux knowledge, if anyone has an answer?

Thank you in advance
 

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