[SOLVED] Win10VM won't start with GPU Passthrough

[bujingai]

Hi guys,

I keep getting this error when trying gpu passthrough for my amd gpu

root@chenhi:~# qm start 102
kvm: -device ide-cd,bus=ide.0,unit=1,drive=drive-ide1,id=ide1,bootindex=200: Can't create IDE unit 1, bus supports only 1 units
start failed: QEMU exited with code 1
root@chenhi:~#

this is my grub

GRUB_CMDLINE_LINUX_DEFAULT="quiet amd_iommu=on pcie_acs_override=downstream,multifunction video=efifb:eek:ff"

and this is my conf file

agent: 1
balloon: 1024
bios: ovmf
bootdisk: scsi0
cores: 8
efidisk0: local-zfs:vm-102-disk-1,size=1M
hostpci0: 0c:00,pcie=1,x-vga=1
ide1: ISO:iso/virtio-win-0.1.189.iso,media=cdrom,size=488766K
ide2: ISO:iso/Windows10pro.iso,media=cdrom
machine: q35
memory: 16384
name: Windows10Pro
net0: virtio=B6:9E:4D:61:C9:6D,bridge=vmbr0,firewall=1
numa: 0
ostype: win10
scsi0: local-zfs:vm-102-disk-0,cache=writeback,size=100G
scsihw: virtio-scsi-pci
smbios1: uuid=2b35690e-ddbd-49d4-9f0a-ece47b8de98c
sockets: 1
vmgenid: 9235681e-935b-4c44-ad1d-4f8a925c435c

when i run lspci -k

0c:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Device 7340 (rev c5)
        Subsystem: Sapphire Technology Limited Device e421
        Kernel driver in use: vfio-pci
        Kernel modules: amdgpu
0c:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 HDMI Audio
        Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 HDMI Audio
        Kernel driver in use: vfio-pci
        Kernel modules: snd_hda_intel

any pros here can help?

thanks in advance

 

[LnxBil]

Have you tried to change the VM configuration as your error message suggests?