args: Parameter modification for VM

[Aksine]

Hello Proxmox forum,

I have some questions regarding the args: parameter

For example for one of my VMs that i want to modify

here's what proxmox generates ,the raw qemu command ,removed unnecessary lines to highlight what i want to remove specifically

qm showcmd 120 --pretty
/usr/bin/kvm \
  -id 120 \
....
  -m 2048 \
  -object 'iothread,id=iothread-virtio0' \
  -device 'pci-bridge,id=pci.1,chassis_nr=1,bus=pci.0,addr=0x1e' \
  -device 'pci-bridge,id=pci.2,chassis_nr=2,bus=pci.0,addr=0x1f' \
  -device 'pci-bridge,id=pci.3,chassis_nr=3,bus=pci.0,addr=0x5' \
....

Do you know how i can delete/remove/modify this particular line -device 'pci-bridge,id=pci.2,chassis_nr=2,bus=pci.0,addr=0x1f' \with an args: override or something else ?

The only way i currently can do this is modifying the perl script as shown here:https://forum.proxmox.com/threads/igd-passthrough-and-hard-coded-pci-bridges.68285/

Thank you
Regards,Aksine

 

[fiona]

Hi,

The only way i currently can do this is modifying the perl script as shown here:https://forum.proxmox.com/threads/igd-passthrough-and-hard-coded-pci-bridges.68285/

the bug that was filed in that thread was already fixed: https://bugzilla.proxmox.com/show_bug.cgi?id=2794
So the question is why that doesn't work for you. Did you try using the legacy-igd option? Please share the VM configuration qm config 120, the full error message and the output of pveversion -v.

 

[Aksine]

Hi,

the bug that was filed in that thread was already fixed: https://bugzilla.proxmox.com/show_bug.cgi?id=2794
So the question is why that doesn't work for you. Did you try using the legacy-igd option? Please share the VM configuration qm config 120, the full error message and the output of pveversion -v.

Oh i was not aware of the legacy-igd option ,i'll give that a try to see how the configuration changes .

I actually dont have any error messages ,its just that the OVMF splash does not display ,if i dont modify the perlscript to remove the pci bridge at that location. I'll give legacy-igd option a try

just for information

qm config 120

agent: 0
args: -drive 'if=pflash,unit=0,format=raw,readonly,file=/root/bios/OVMFintelGOP/OVMF_CODE.fd' -drive 'if=pflash,unit=1,format=raw,id=drive-efidisk0,file=/root/bios/OVMFintelGOP/OVMF_VARS.fd' -device vfio-pci,host=00:02.0,id=hostdev0,bus=pci.0,addr=0x2,x-vga=on,x-igd-opregion=on,x-igd-gms=1,romfile=vbios_gvt_uefi.rom -machine dump-guest-core=on   -smp '4,sockets=1,cores=2,threads=2,maxcpus=4' -cpu host,hv-time=on,hv-relaxed=on,hv-vapic=on,hv-spinlocks=0x1fff,hv-vpindex=on,hv-runtime=on,hv-synic=on,hv-stimer=on,hv-stimer-direct=on,hv-reset=on,hv-frequencies=on,hv-reenlightenment=on,hv-tlbflush=on,hv-ipi=on,host-cache-info=on,l3-cache=off
balloon: 0
bios: seabios
boot: order=virtio0;ide2
cores: 4
cpu: host
description: idleVm=no%0AvmCpus=2,3%0AmiscCpus=0,1%0AcpuGovernor=powersave%0Ahookscript%3A isostore%3Asnippets/pinning-hook-genric.sh
hostpci0: 0000:00:14.0
hostpci1: 0000:00:1f.3
ide2: none,media=cdrom
localtime: 0
machine: pc-i440fx-7.2
memory: 2048
meta: creation-qemu=7.2.0,ctime=1689492646
name: hp1-vfio
net0: virtio=36:26:74:C2:9A:72,bridge=vmbr0
numa: 0
ostype: win11
scsihw: virtio-scsi-single
smbios1: uuid=48f9ef79-51f9-4fc2-866d-95570ea11380
sockets: 1
tablet: 0
vga: none
virtio0: local-lvm:vm-120-disk-0,cache=unsafe,iothread=1,size=35G
vmgenid: d85f8333-5e6d-4b6e-866f-272b99a3bd77

pveversion -v

proxmox-ve: 7.4-1 (running kernel: 5.15.116-1-pve)
pve-manager: 7.4-16 (running version: 7.4-16/0f39f621)
pve-kernel-5.15: 7.4-6
pve-kernel-5.15.116-1-pve: 5.15.116-1
pve-kernel-5.15.108-1-pve: 5.15.108-2
pve-kernel-5.15.102-1-pve: 5.15.102-1
ceph: 17.2.6-pve1
ceph-fuse: 17.2.6-pve1
corosync: 3.1.7-pve1
criu: 3.15-1+pve-1
glusterfs-client: 9.2-1
ifupdown2: 3.1.0-1+pmx4
ksm-control-daemon: 1.4-1
libjs-extjs: 7.0.0-1
libknet1: 1.24-pve2
libproxmox-acme-perl: 1.4.4
libproxmox-backup-qemu0: 1.3.1-1
libproxmox-rs-perl: 0.2.1
libpve-access-control: 7.4.1
libpve-apiclient-perl: 3.2-1
libpve-common-perl: 7.4-2
libpve-guest-common-perl: 4.2-4
libpve-http-server-perl: 4.2-3
libpve-rs-perl: 0.7.7
libpve-storage-perl: 7.4-3
libspice-server1: 0.14.3-2.1
lvm2: 2.03.11-2.1
lxc-pve: 5.0.2-2
lxcfs: 5.0.3-pve1
novnc-pve: 1.4.0-1
proxmox-backup-client: 2.4.3-1
proxmox-backup-file-restore: 2.4.3-1
proxmox-kernel-helper: 7.4-1
proxmox-mail-forward: 0.1.1-1
proxmox-mini-journalreader: 1.3-1
proxmox-widget-toolkit: 3.7.3
pve-cluster: 7.3-3
pve-container: 4.4-6
pve-docs: 7.4-2
pve-edk2-firmware: 3.20230228-4~bpo11+1
pve-firewall: 4.3-5
pve-firmware: 3.6-5
pve-ha-manager: 3.6.1
pve-i18n: 2.12-1
pve-qemu-kvm: 7.2.0-8
pve-xtermjs: 4.16.0-2
qemu-server: 7.4-4
smartmontools: 7.2-pve3
spiceterm: 3.2-2
swtpm: 0.8.0~bpo11+3
vncterm: 1.7-1
zfsutils-linux: 2.1.11-pv

 

[Aksine]

Alright , legacy-igd=1 does remove the pci-bridge ,however ,is there any way to pass these arguments x-igd-opregion=on,x-igd-gms=1 through proxmox ?