Nvidia Problem Passthrough Windows

[yamaharacer]

Hi There,

I have a confusing Problem with my passthrough setup

Passthrough with Seabios doesnt work to any Windows VM. Linux WMs work without problem.

Does anybody know why its only working with Linux VMs?

What I have recognized, when I setup vga to "vmware" of the VM config, passthrough seems to work but without correct initializing the screen which is connected to the Nvidia GPU.

Does anybody have an idea?

System
I7 3770
Asus P8Z77-V
Aus GTX750TI in PCIe Slot 2
32GB Ram

/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 intel_iommu=on iommu=pt pcie_acs_override=downstream,multifunction"
GRUB_CMDLINE_LINUX=""

/etc/modules

vfio
vfio_iommu_type1
vfio_pci

/etc/modprobe.d/vfio.conf

options vfio-pci ids=10de:1380,10de:0fbc

/etc/modprobe.d/blacklist.conf

blacklist bcma
blacklist nouveau
blacklist amdgpu
blacklist snd_hda_intel

/etc/pve/qemu-server/100.conf

balloon: 0
boot: order=ide0;ide2;net0
cores: 2
cpu: x86-64-v2-AES
hostpci0: 0000:02:00,pcie=1,x-vga=1
ide0: VM:100/vm-100-disk-0.qcow2,size=32G
ide2: VM:iso/virtio-win-0.1.240.iso,media=cdrom,size=612812K
machine: pc-q35-8.1
memory: 4096
meta: creation-qemu=8.1.2,ctime=1703576918
name: XP
net0: rtl8139=BC:24:11:C4:1C:E1,bridge=vmbr0,firewall=1
numa: 0
ostype: wxp
smbios1: uuid=1359b839-42da-404a-8902-d086dcb0d936
sockets: 1
usb1: host=1b1c:0a60
vga: none
vmgenid: a5e65079-f93d-4007-888a-be64c228044d

 

[yamaharacer]

On going steps, but no solution.

I have enabled rdp within my Windows XP VM. After that I have disabled vga again and recognized that the VM doenst boot up.

So I have added:

initcall_blacklist=sysfb_init

to

/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 intel_iommu=on iommu=pt pcie_acs_override=downstream,multifunction initcall_blacklist=sysfb_init"
GRUB_CMDLINE_LINUX=""

After that the rdp connection works and the VM starts. Under the device manager for the GPU I get Error10.

Someone an idea?

 

[yamaharacer]

Is there a way to show VM specific logs? Just want to find out why the VMs wont boot when I disable vga and only passthrough a PCIe device.