Proxmox Windows 11 VM

twhiterust · Friday at 23:22

hey
So this is the first time posting on Proxmox forum so tell me if ive made any mistakes.
I am trying to make a win11 vm on my server pc (7900x cpu and a 7900xtx gpu) I have made the vm and added the gpu through pcie pass through but when I get through windows install to windows nothing shows in task manager and device manger has a code 43 for the gpu. If I try to install drivers they do install but after restarting they don't even show in device manager. Then when I try to install and drivers again I get an error 173. This is on a fresh install of the latest version of Proxmox with only 1 lxc running off it.

Thanks for any time spent on this
Thomas

uzumo · Saturday at 11:32

I don't think anyone can answer without knowing what dmesg and your settings are.

We recommend attaching long logs as files, as people will not want to read something that is difficult to read.

It is easier for people to read short settings if you paste them as code into the main text.

Code:

dmesg
lspci -nnk
cat /etc/kernel/cmdline
cat /etc/default/grub
cat /etc/modules
cat /etc/modprobe.d/*
cat /etc/pve/qemu-server/<vmid>.conf
cat /var/lib/vz/snippets/*

news · Saturday at 11:35

And add on your report, witch changes you make on the bios settings!
Not every (no) mainboard will work out of stock.

twhiterust · Saturday at 14:34

Ah thanks for suggestions.

cat /etc/default/grub
https://pastebin.com/GYiBQQ2e

cat /etc/modules
https://pastebin.com/p9AaaKJc

cat /etc/modprobe.d/*
https://pastebin.com/vMZdvfds

cat /etc/pve/qemu-server/110.conf
https://pastebin.com/tt5vtuJM
Bios Changes
CSM: Disabled
Above 4G Decoding: Enabled
Resizable BAR Support: Disabled
SR-IOV: Enabled

Thanks for the suggestions

EDIT: I followed this guide to make the vm (https://www.reddit.com/r/Proxmox/comments/15kbmyh/comment/jv72la2/)
I might of now followed it correctly though

uzumo · Saturday at 15:27

I feel like what you are referring to is outdated information.

nofb video=vesafbff video=efifbff video=simplefbff

I believe this is using the pve7.1 procedure.

I see that you have multiple settings that are the same, so why don't you clean everything up and then try the following?

There have been reports of success, so please consider using that option.
I have a feeling that this procedure also includes unnecessary settings, but if you want it to work, I think you can just set it up as is.

T

Thread 'VGA pass issues with Radeon RX 7900 XTX | kvm: VFIO_MAP_DMA failed: Invalid argument'

Nov 1, 2024

Hello,

I use proxmox with kernel:

Code:

# uname -r
6.8.12-2-pve

I have ASUS Radeon RX 7900 XTX TUF Gaming OC 24GB GDDR6 installed in PCI slot

From proxmox I can see it as:

Code:

03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Navi 31 [Radeon RX 7900 XT/7900 XTX] (rev c8)
    Subsystem: ASUSTeK Computer Inc. Navi 31 [Radeon RX 7900 XT/7900 XTX/7900M]
    Kernel driver in use: vfio-pci
    Kernel modules: amdgpu

but I also checked that it has more device, but it has not been documented on proxmox wiki:

Code:

# lspci -nnk | grep AMD
01:00.0 PCI bridge [0604]...

twhiterust · Saturday at 17:17

Man you are awesome. But now when I try to boot it says the "press any key to boot from cd or dvd" and when I press a key it just reboots and goes back to the boot from cd screen

Impact · Saturday at 17:27

Try to change the boot order in Options.

twhiterust · Saturday at 17:41

What should I change the boot order to

Impact · Saturday at 17:47

Drag scsi0 up so it's the first option. This is the default, by the way.

twhiterust · Saturday at 17:49

Still when I boot the vm the press any key to boot comes up and then it still says no bootable option or device was found.
any other idea?
thanks

Impact · Saturday at 17:55

That probably means that scsi0 is unbootable. Can you check what you see if scsi0 is your only boot option?

twhiterust · Saturday at 17:56

nothing is installed on scsi0 im still trying to boot from the cd to install win11 on to the disk

Impact · Saturday at 17:58

Ah. I see. Then leave the order as is. Did you press a key fast enough? Try mashing them.

twhiterust · Saturday at 18:24

I have tried to mash the key and still just a restart happens

uzumo · 2025-09-07T02:12:10+0200

If you have made changes, we need the information again because we cannot know without the settings after the changes have been made.
If the key doesn't work on the virtual console, you may need to check if the USB is not passed through somewhere.

twhiterust · 2025-09-07T10:27:18+0200

So ive changed the vm config to this

balloon: 4096
bios: ovmf
boot: order=ide2;scsi0;ide0;net0
cores: 12
cpu: kvm64,flags=+hv-tlbflush;+aes
efidisk0: NVMEMASS:110/vm-110-disk-0.qcow2,efitype=4m,pre-enrolled-keys=1,size=528K
hostpci0: 0000:03:00,pcie=1,rombar=0,romfile=navi31.rom,x-vga=1
ide0: local:iso/virtio-win-0.1.271.iso,media=cdrom,size=709474K
ide2: local:iso/Win11_24H2_EnglishInternational_x64.iso,media=cdrom,size=5695402K
machine: pc-q35-10.0,viommu=intel
memory: 16384
meta: creation-qemu=10.0.2,ctime=1757144159
name: Win11
net0: virtio=BC:24:11:1F:1D:96,bridge=vmbr0,firewall=1
numa: 0
ostype: win11
scsi0: NVMEMASS:110/vm-110-disk-1.qcow2,size=256G
scsihw: virtio-scsi-pci
smbios1: uuid=f151d61f-91c3-432b-84da-45ace30de0db
sockets: 1
tpmstate0: NVMEMASS:110/vm-110-disk-2.raw,size=4M,version=v2.0
vga: std
vmgenid: 5a35f87f-5aa5-4222-aa7b-282226e32980

And here's the hardware menu

The vm defo gets my keystrokes it just docent do anything after that

twhiterust · 2025-09-07T13:50:35+0200

So I have got it to boot, but now the console is just black, and if I stop the vm I have to restart the host for the vm to start again. I get the error

error writing '1' to '/sys/bus/pci/devices/0000:03:00.0/reset': Inappropriate ioctl for device
failed to reset PCI device '0000:03:00.0', but trying to continue as not all devices need a reset
swtpm_setup: Not overwriting existing state file.
kvm: ../hw/pci/pci.c:1803: pci_irq_handler: Assertion `0 <= irq_num && irq_num < PCI_NUM_PINS' failed.
stopping swtpm instance (pid 261430) due to QEMU startup error
TASK ERROR: start failed: QEMU exited with code 1

bios: ovmf
boot: order=scsi0;ide2;ide0;net0
cores: 12
cpu: kvm64,flags=+hv-tlbflush;+aes
efidisk0: NVMEMASS:120/vm-120-disk-0.qcow2,efitype=4m,pre-enrolled-keys=1,size=528K
hostpci0: 0000:03:00,pcie=1,romfile=Asus.RX7900XTX.24576.221129.rom,x-vga=1,rombar=0
ide0: local:iso/virtio-win-0.1.271.iso,media=cdrom,size=709474K
ide2: local:iso/Win11_24H2_EnglishInternational_x64.iso,media=cdrom,size=5695402K
machine: pc-q35-9.0
memory: 16384
meta: creation-qemu=10.0.2,ctime=1757234791
name: Win11Dev
net0: virtio=BC:24:11:C08:53,bridge=vmbr0,firewall=1
numa: 0
ostype: win11
scsi0: NVMEMASS:120/vm-120-disk-1.qcow2,size=256G
scsihw: virtio-scsi-pci
smbios1: uuid=30d3d19d-62f9-4607-8155-649b811ce471
sockets: 1
tpmstate0: NVMEMASS:120/vm-120-disk-2.raw,size=4M,version=v2.0
vga: std
vmgenid: 51d5e957-26f3-428e-9b2c-fa1b794f2c83
args: -cpu 'host,+kvm_pv_unhalt,+kvm_pv_eoi,hv_vendor_id=NV43FIX,kvm=off'

twhiterust · 2025-09-07T15:03:40+0200

Thank you so much for helping me, the boot problem didnt get fixed i just booted off my pxe server.
Then i could just remote in to the VM

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