Passthrough issues with nvidia + XP VM

[marioawe]

Hi there,

Running into an issue with a build I am setting up, specifically passing through a GPU through to a XP VM being used offline, for retro gaming. The GPU does get recognized correctly inside the VM, but fails to start with an Error code 10. I've gone through the forum and tried several things, all to no avail.

Anyone know what I'm doing wrong here? Please let me know if I can provide any other info!

System:

CPUs	2x E5-2690 v2
Motherboard	Supermicro X9DRi-LN4F+
GPU (for modern OS)	GTX 1050
GPU (for retro OS)	GT 610
RAM	Samsung, 96GB total

/etc/default/grub

GRUB_DEFAULT=0
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet iommu=pt intel_iommu=on initcall_blacklist=sysfb_init"
GRUB_CMDLINE_LINUX=""

/etc/modules

 vfio
 vfio_iommu_type1
 vfio_pci

/etc/modprobe.d/vfio.conf

options vfio-pci ids=10de:1d01,10de:0fb8,10de:104a,10de:0e08 disable_vga=1
softdep nouveau pre: vfio-pci
softdep snd_hda_intel pre: vfio-pci

/etc/modprobe.d/blacklist.conf

blacklist nouveau
blacklist nvidia*
blacklist nvidiafb

/etc/pve/qemu-server/XPNUMHERE.conf

## SP Version%3A
#Service Pack 3
acpi: 1
agent: 0,type=isa
args: -cpu 'host,+kvm_pv_unhalt,+kvm_pv_eoi,hv_vendor_id=NV43FIX,kvm=off'
boot: order=ide0;ide1;ide2
cores: 2
cpu: host,hidden=1,flags=+pcid
hostpci0: 0000:04:00.0
hostpci1: 0000:04:00.1
ide0: local-lvm:vm-202-disk-0,cache=writeback,size=60G
ide1: local:iso/en_windows_xp_professional_with_service_pack_3_x86_cd_vl_x14-73974.iso,media=cdrom,size=603276K
ide2: local:iso/virtio-win-0.1.240.iso,media=cdrom,size=612812K
machine: pc-i440fx-8.1
memory: 4096
meta: creation-qemu=8.1.5,ctime=1708923883
name: WinXP-Games
net0: virtio=BC:24:11:5F:32:C2,bridge=vmbr0,firewall=1
numa: 0
ostype: wxp
scsihw: virtio-scsi-single
smbios1: uuid=fd3f66fa-420f-4243-b51c-9c99afd7f293
sockets: 1
tags: Games;Windows
vmgenid: 1a742af8-73a0-4e8a-9aae-da6c159294b7

 

[Neobin]

hostpci0: 0000:04:00.0
hostpci1: 0000:04:00.1

Did you already try to passthrough the GPU as one device with "All Functions" set/enabled; instead of two separate devices?

 

[marioawe]

Did you already try to passthrough the GPU as one device with "All Functions" set/enabled; instead of two separate devices?

Yes I have. I had it that way simply to test. Typically I map devices via resource mappings.

 

[marioawe]

Playing around with different settings - setting CPU to something like Core2Duo does produce slightly different behavior, in that it gave me an Error Code 12. I then disabled the VGA graphics adapter (not the 610) through Device Manager. This requires a restart which unfortunately puts me back at square 1, with it giving me Error 10 once again.

 

[marioawe]

.

To rule out bad hardware - ordered and received a 960. Works fine baremetal and in a Win 10 VM. Same issues when running in XP.

 

[marioawe]

Wanted to throw in the output of lspci -vnn in case this may help anyone rule out what I may be doing wrong.

 

[marioawe]

I know I'm kind of speaking to the wind at this point, but I still want to document what I've done in case I happen upon a solution that works for me. Working with someone else, I attempted to create the machine with the machine type Q35, to rule out machine type issues. Attempting to install, it prompts that it cannot see the storage controller, and attempting to continue, it BSODs:



It seems that BSOD comes up when it doesn't recognize the storage controller. I'm relatively familiar with slipstreaming drivers into ISOs with nLite/NTLite and added the drivers from the viostor folder from the VirtIO Windows driver ISO. This causes it to not prompt me that it doesn't see the storage controller, but still ultimately fails out with the same BSOD. Attempting any of the other controllers, the installer obviously doesn't seem to see them.

I cannot be the only person who has attempted this sort of thing, what am I doing wrong??