Code 43 GPU Passthrough with Nvidia: I've tried all guides and still can't get success.

P

Payden K Pringle

New Member
Nov 2, 2017
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To summarize:

1. Trying to passthrough the GPU so that I can have a Linux host to manage the computer while the users only see Windows.

2. Hardware is the following:
- AMD Athlon X4 845 CPU
- ASRock FM2A88M PRO3+ Motherboard
- 8GB of DDR3 Kingston RAM
- 120GB SSD
- Nvidia GT 710 GPU​

3. Config file for the VM on ProxMox is the following:

Code: 
        bios: ovmf
        bootdisk: virtio0
        cores: 4
        cpu: host
        efidisk0: local-lvm:vm-100-disk-2,size=128K
        hostpci0: 02:00,pcie=1,x-vga=on,romfile=GK208_BIOS_FILE.bin
        machine: q35
        memory: 7168
        name: Test-Windows
        net0: virtio=96:24:CF:B4:AA:A2,bridge=vmbr0
        numa: 0
        ostype: win10
        scsihw: virtio-scsi-pci
        smbios1: uuid=f675c872-c390-4668-9c48-423f5b4ff239
        sockets: 1
        usb0: host=6-1.2 # Mouse & Keyboard
        usb1: host=2-4 # Other
        usb2: host=3-1.2.3.4 # Physical
        usb3: host=1-1.2.3.4 # USB Ports
        virtio0: local-lvm:vm-100-disk-1,cache=writeback,size=90G

4. The BIOS bin file is parsed correctly and UEFI capable. The rom parsing instructions comes from the ProxMox Wiki.

Code: 
        root@pve-001:~/rom-parser# ./rom-parser /usr/share/kvm/GK208_BIOS_FILE.bin
            Valid ROM signature found @600h, PCIR offset 190h
                PCIR: type 0 (x86 PC-AT), vendor: 10de, device: 128b, class: 030000
                PCIR: revision 0, vendor revision: 1
            Valid ROM signature found @fc00h, PCIR offset 1ch
                PCIR: type 3 (EFI), vendor: 10de, device: 128b, class: 030000
                PCIR: revision 3, vendor revision: 0
                    EFI: Signature Valid, Subsystem: Boot, Machine: X64
            Last image

The Motherboard has the issue where it shadows the BIOS of the GPU in the first PCI-e slot. As far as I'm aware, providing a rom file is required in this situation for GPU passthrough.

5. I've followed the following guides trying a mix and match of settings:

https://forum.proxmox.com/threads/gpu-passthrough-tutorial-reference.34303/

https://forum.proxmox.com/threads/nvidia-gpu-passthrough-assistance.27237/

https://pve.proxmox.com/wiki/Pci_passthrough

https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF

https://www.reddit.com/r/VFIO/comments/5sh41p/any_other_reasons_for_nvidia_driver_code_43/

I realize this isn't Fedora 26 or RyZen, but useful info regardless:

https://level1techs.com/article/ryzen-gpu-passthrough-setup-guide-fedora-26-windows-gaming-linux

I could've easily missed a step in one of them given all the information I'm trying to combine here.

6. I have the latest Nvidia Drivers installed (version 388).

7. IOMMU is working:

Code: 
root@pve-001:~# dmesg | grep -e IOMMU
[    0.615425] AMD-Vi: IOMMU performance counters supported
[    0.617069] AMD-Vi: Found IOMMU at 0000:00:00.2 cap 0x40
[    0.618547] perf/amd_iommu: Detected AMD IOMMU #0 (2 banks, 4 counters/bank).

root@pve-001:~# find /sys/kernel/iommu_groups/ -type l
/sys/kernel/iommu_groups/7/devices/0000:00:13.2
/sys/kernel/iommu_groups/7/devices/0000:00:13.0
/sys/kernel/iommu_groups/5/devices/0000:00:11.0
/sys/kernel/iommu_groups/3/devices/0000:00:09.0
/sys/kernel/iommu_groups/11/devices/0000:00:15.2
/sys/kernel/iommu_groups/11/devices/0000:00:15.0
/sys/kernel/iommu_groups/11/devices/0000:05:00.0
/sys/kernel/iommu_groups/1/devices/0000:00:03.0
/sys/kernel/iommu_groups/1/devices/0000:02:00.1
/sys/kernel/iommu_groups/1/devices/0000:00:03.1
/sys/kernel/iommu_groups/1/devices/0000:02:00.0
/sys/kernel/iommu_groups/8/devices/0000:00:14.2
/sys/kernel/iommu_groups/8/devices/0000:00:14.0
/sys/kernel/iommu_groups/8/devices/0000:00:14.3
/sys/kernel/iommu_groups/6/devices/0000:00:12.2
/sys/kernel/iommu_groups/6/devices/0000:00:12.0
/sys/kernel/iommu_groups/4/devices/0000:00:10.0
/sys/kernel/iommu_groups/12/devices/0000:00:18.4
/sys/kernel/iommu_groups/12/devices/0000:00:18.2
/sys/kernel/iommu_groups/12/devices/0000:00:18.0
/sys/kernel/iommu_groups/12/devices/0000:00:18.5
/sys/kernel/iommu_groups/12/devices/0000:00:18.3
/sys/kernel/iommu_groups/12/devices/0000:00:18.1
/sys/kernel/iommu_groups/2/devices/0000:00:08.0
/sys/kernel/iommu_groups/10/devices/0000:00:14.5
/sys/kernel/iommu_groups/0/devices/0000:00:02.2
/sys/kernel/iommu_groups/0/devices/0000:00:02.0
/sys/kernel/iommu_groups/0/devices/0000:01:00.0
/sys/kernel/iommu_groups/9/devices/0000:00:14.4

8. The vfio-pci driver is being used correctly:

Code: 
root@pve-001:~# lspci -k
02:00.0 VGA compatible controller: NVIDIA Corporation GK208B [GeForce GT 710] (rev a1)
Subsystem: eVga.com. Corp. GK208 [GeForce GT 710B]
Kernel driver in use: vfio-pci
Kernel modules: nvidiafb, nouveau

Other relevant information:

Code: 
root@pve-001:~# pveversion -v
    proxmox-ve: 5.1-25 (running kernel: 4.13.4-1-pve)
    pve-manager: 5.1-35 (running version: 5.1-35/722cc488)
    pve-kernel-4.13.4-1-pve: 4.13.4-25
    libpve-http-server-perl: 2.0-6
    lvm2: 2.02.168-pve6
    corosync: 2.4.2-pve3
    libqb0: 1.0.1-1
    pve-cluster: 5.0-15
    qemu-server: 5.0-17
    pve-firmware: 2.0-3
    libpve-common-perl: 5.0-20
    libpve-guest-common-perl: 2.0-13
    libpve-access-control: 5.0-7
    libpve-storage-perl: 5.0-16
    pve-libspice-server1: 0.12.8-3
    vncterm: 1.5-2
    pve-docs: 5.1-12
    pve-qemu-kvm: 2.9.1-2
    pve-container: 2.0-17
    pve-firewall: 3.0-3
    pve-ha-manager: 2.0-3
    ksm-control-daemon: 1.2-2
    glusterfs-client: 3.8.8-1
    lxc-pve: 2.1.0-2
    lxcfs: 2.0.7-pve4
    criu: 2.11.1-1~bpo90
    novnc-pve: 0.6-4
    smartmontools: 6.5+svn4324-1
    zfsutils-linux: 0.7.2-pve1~bpo90

But after all that, I still get Error Code 43. Note that the Microsoft Basic Display Adapter is not listed under Display Adapters.

Is it because I'm using VirtIO? All the guides seem to be using SCSI without VirtIO. I'd like as much performance as possible, but if it's just not happening with VirtIO, I can use SCSI.

I am getting this error when I run the VM:

Code: 
kvm: -device vfio-pci,host=02:00.0,id=hostpci0,bus=ich9-pcie-port-1,addr=0x0,romfile=/usr/share/kvm/GK208_BIOS_FILE.bin: Failed to mmap 0000:02:00.0 BAR 3. Performance may be slow

I have disabled the Framebuffer in the kernel settings:
Code: 
GRUB_CMDLINE_LINUX_DEFAULT="quiet amd_iommu=on video=vesafb:off,efifb:off"

But I am still seeing BIOS messages, up to a point, on the display.
 
Last edited:
do you have a dedicated gpu for the host?
also yes, try with scsi instead of virtio, but i cannot say if this works (i guess rather not)
 
dcsapak said:
do you have a dedicated gpu for the host?
also yes, try with scsi instead of virtio, but i cannot say if this works (i guess rather not)
Click to expand...

I do not. I thought it didn't require one. None of the guides I've found specify that the host requires a GPU when passing one through to a guest. Given that ProxMox offers a WebGUI for managing nodes, I had expected that I wouldn't need a GPU for the host.

I will try out SCSI itself and see if that changes things.

My research regarding Code 43 Error is that this is Nvidia's drivers noticing that it is being virtualized. I imagine using virtio *could* be what they notice?

I've also read that using x-vga=on adds the option hv_vendor_id=proxmox to the cpu settings and that using proxmox as the hv_vendor_id doesn't always work, so I've tried manually entering the command in the Shell rather than just clicking Start on the VM and changing the hv_vendor_id from proxmox to Nvidia43FIX (or anything else really). Unfortunately that didn't solve the problem.
 
Changing my config file to this (just removing pcie=1 and changing x-vga=on to x-vga=1):

Code: 
args: -cpu 'host,+kvm_pv_unhalt,+kvm_pv_eoi,hv_vendor_id=Nvidia43FIX,kvm=off'
bios: ovmf
bootdisk: virtio0
cores: 4
cpu: host
efidisk0: local-lvm:vm-100-disk-2,size=128K
hostpci0: 02:00,x-vga=1,romfile=GK208_BIOS_FILE.bin
hotplug: 0
memory: 7168
name: Test-Windows
machine: q35
net0: virtio=96:24:CF:B4:AA:A2,bridge=vmbr0
numa: 0
onboot: 1
ostype: win10
scsihw: virtio-scsi-pci
smbios1: uuid=f675c872-c390-4668-9c48-423f5b4ff239
sockets: 1
usb0: host=6-1.2
usb1: host=2-4
usb2: host=3-1.2.3.4
usb3: host=1-1.2.3.4
virtio0: local-lvm:vm-100-disk-1,cache=writeback,size=90G

Changes the error code to the following:

Your computer's system firmware does not include enough information to properly configure and use this device. To use this device, contact your computer manufacturer to obtain a firmware or BIOS update. (Code 35)
​
I also allowed unsafe IOMMU Interupts in GRUB as it says in the Wiki:
https://pve.proxmox.com/wiki/Pci_passthrough#IOMMU_interrupt_remapping

I still have the "Failed to mmap" error however:
Code: 
kvm: -device vfio-pci,host=02:00.0,id=hostpci0.0,bus=pci.0,addr=0x10.0,multifunction=on,romfile=/usr/share/kvm/GK208_BIOS_FILE.bin: Failed to mmap 0000:02:00.0 BAR 3. Performance may be slow

Doing `cat /proc/iomem` gives me this:

Code: 
    f0000000-fed3ffff : PCI Bus 0000:00
      f0000000-f9ffffff : PCI Bus 0000:02
        f0000000-f7ffffff : 0000:02:00.0
          f0000000-f7ffffff : vfio-pci
        f8000000-f9ffffff : 0000:02:00.0
          f9000000-f92fffff : efifb
      fd000000-fe0fffff : PCI Bus 0000:02
        fd000000-fdffffff : 0000:02:00.0
          fd000000-fdffffff : vfio-pci
        fe080000-fe083fff : 0000:02:00.1
          fe080000-fe083fff : vfio-pci

Where device 02:00.0 is my GPU and 02:00.1 is the audio for it.

And after uninstalling and reinstalling the drivers, I'm back to Code 43. sigh
 
Last edited:
I used to have a PCIe passthrough setup on my arch desktop. IIRC, code 43 means hypervisor detection. Have you tried specifying the kvm=off option for your cpu?
 
Hi all! I get the same error - code 43 then I try to pass through my GTX650Ti to Win10 guest.
Could you help me to debug this issue?

My hardware:
P8Z77V-LX
i5-3470
32 Gb RAM
Gigabyte GTX650Ti (GV-N65TOC-1GI)

GRUB_DEFAULT=0
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="Proxmox Virtual Environment"
GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on video=vesafb:eek:ff,efifb:eek:ff"
GRUB_CMDLINE_LINUX=""
GRUB_DISABLE_OS_PROBER=true
GRUB_DISABLE_RECOVERY="true"

[ 0.000000] ACPI: DMAR 0x00000000DD9C1B18 000080 (v01 INTEL SNB 00000001 INTL 00000001)
[ 0.000000] DMAR: IOMMU enabled
[ 0.030892] DMAR: Host address width 36
[ 0.030893] DMAR: DRHD base: 0x000000fed90000 flags: 0x1
[ 0.030899] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap c9008020660262 ecap f0105a
[ 0.030900] DMAR: RMRR base: 0x000000dd934000 end: 0x000000dd945fff
[ 0.030902] DMAR-IR: IOAPIC id 2 under DRHD base 0xfed90000 IOMMU 0
[ 0.030903] DMAR-IR: HPET id 0 under DRHD base 0xfed90000
[ 0.030904] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping.
[ 0.031055] DMAR-IR: Enabled IRQ remapping in x2apic mode
[ 0.489852] DMAR: No ATSR found
[ 0.489918] DMAR: dmar0: Using Queued invalidation
[ 0.489926] DMAR: Setting RMRR:
[ 0.489939] DMAR: Setting identity map for device 0000:00:14.0 [0xdd934000 - 0xdd945fff]
[ 0.489952] DMAR: Setting identity map for device 0000:00:1a.0 [0xdd934000 - 0xdd945fff]
[ 0.489964] DMAR: Setting identity map for device 0000:00:1d.0 [0xdd934000 - 0xdd945fff]
[ 0.489971] DMAR: Prepare 0-16MiB unity mapping for LPC
[ 0.489977] DMAR: Setting identity map for device 0000:00:1f.0 [0x0 - 0xffffff]
[ 0.490048] DMAR: Intel(R) Virtualization Technology for Directed I/O

vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd

02:00.0 0300: 10de:11c6 (rev a1)
02:00.1 0403: 10de:0e0b (rev a1)

options vfio-pci ids=10de:11c6,10de:0e0b

hostpci0: 02:00.0,pcie=1,x-vga=on,romfile=Gigabyte.GTX650Ti.1024.130717.rom
bios: ovmf
bootdisk: virtio0
cores: 2
cpu: host
efidisk0: local:114/vm-114-disk-2.qcow2,size=128K
ide2: none,media=cdrom
machine: q35
memory: 4096
name: w10x64
net0: virtio=C2:C0:49:2E:09:1D,bridge=vmbr0
numa: 0
ostype: win10
scsihw: virtio-scsi-pci
smbios1: uuid=f1777767-6bb6-4f64-a350-cba0104f8317
sockets: 1
virtio0: local:114/vm-114-disk-1.qcow2,size=50G

lspci -v shows "Kernel driver in use: vfio-pci"

I get an error 43 before installing the driver. When I install the driver VM does not boot.

Thank you!
 
Gerus87 said:
hostpci0: 02:00.0,pcie=1,x-vga=on,romfile=Gigabyte.GTX650Ti.1024.130717.rom
Click to expand...
try with:
Code: 
hostpci0: 02:00,pcie=1,x-vga=on,romfile=Gigabyte.GTX650Ti.1024.130717.rom
instead (so that the audio part also gets passed through)
 
dcsapak said:
try with:
Code: 
hostpci0: 02:00,pcie=1,x-vga=on,romfile=Gigabyte.GTX650Ti.1024.130717.rom
instead (so that the audio part also gets passed through)
Click to expand...
Thank you to fast reply!
I tried, but it not help.
Снимок экрана от 2018-02-09 15-19-32.png

proxmox-ve: 4.4-105 (running kernel: 4.4.98-5-pve)
pve-manager: 4.4-22 (running version: 4.4-22/2728f613)
pve-kernel-4.4.35-1-pve: 4.4.35-77
pve-kernel-4.4.98-5-pve: 4.4.98-105
lvm2: 2.02.116-pve3
corosync-pve: 2.4.2-2~pve4+1
libqb0: 1.0.1-1
pve-cluster: 4.0-54
qemu-server: 4.0-115
pve-firmware: 1.1-11
libpve-common-perl: 4.0-96
libpve-access-control: 4.0-23
libpve-storage-perl: 4.0-76
pve-libspice-server1: 0.12.8-2
vncterm: 1.3-2
pve-docs: 4.4-4
pve-qemu-kvm: 2.9.1-6~pve4
pve-container: 1.0-104
pve-firewall: 2.0-33
pve-ha-manager: 1.0-41
ksm-control-daemon: 1.2-1
glusterfs-client: 3.5.2-2+deb8u3
lxc-pve: 2.0.7-4
lxcfs: 2.0.6-pve1
criu: 1.6.0-1
novnc-pve: 0.5-9
smartmontools: 6.5+svn4324-1~pve80

Linux pve 4.4.98-5-pve #1 SMP PVE 4.4.98-105 (Thu, 18 Jan 2018 10:20:04 +0100) x86_64 GNU/Linux
 
It used to be sufficient to specify kvm=off to hide KVM from the NVIDIA driver. (This masked the CPUID bits the NVIDIA driver was specifically checking.) However, drivers after 387.34 (390.x, maybe others) are making another check and this mask isn't enough anymore. You can try an earlier driver if possible.
 
try github.com/sk1080/nvidia-kvm-patcher
I have the driver 391.35 for 03-04-2018 it's the last one
 
Payden K Pringle said:
To summarize:

1. Trying to passthrough the GPU so that I can have a Linux host to manage the computer while the users only see Windows.

2. Hardware is the following:
- AMD Athlon X4 845 CPU
- ASRock FM2A88M PRO3+ Motherboard
- 8GB of DDR3 Kingston RAM
- 120GB SSD
- Nvidia GT 710 GPU​

3. Config file for the VM on ProxMox is the following:

Code: 
        bios: ovmf
        bootdisk: virtio0
        cores: 4
        cpu: host
        efidisk0: local-lvm:vm-100-disk-2,size=128K
        hostpci0: 02:00,pcie=1,x-vga=on,romfile=GK208_BIOS_FILE.bin
        machine: q35
        memory: 7168
        name: Test-Windows
        net0: virtio=96:24:CF:B4:AA:A2,bridge=vmbr0
        numa: 0
        ostype: win10
        scsihw: virtio-scsi-pci
        smbios1: uuid=f675c872-c390-4668-9c48-423f5b4ff239
        sockets: 1
        usb0: host=6-1.2 # Mouse & Keyboard
        usb1: host=2-4 # Other
        usb2: host=3-1.2.3.4 # Physical
        usb3: host=1-1.2.3.4 # USB Ports
        virtio0: local-lvm:vm-100-disk-1,cache=writeback,size=90G

4. The BIOS bin file is parsed correctly and UEFI capable. The rom parsing instructions comes from the ProxMox Wiki.

Code: 
        root@pve-001:~/rom-parser# ./rom-parser /usr/share/kvm/GK208_BIOS_FILE.bin
            Valid ROM signature found @600h, PCIR offset 190h
                PCIR: type 0 (x86 PC-AT), vendor: 10de, device: 128b, class: 030000
                PCIR: revision 0, vendor revision: 1
            Valid ROM signature found @fc00h, PCIR offset 1ch
                PCIR: type 3 (EFI), vendor: 10de, device: 128b, class: 030000
                PCIR: revision 3, vendor revision: 0
                    EFI: Signature Valid, Subsystem: Boot, Machine: X64
            Last image

The Motherboard has the issue where it shadows the BIOS of the GPU in the first PCI-e slot. As far as I'm aware, providing a rom file is required in this situation for GPU passthrough.

5. I've followed the following guides trying a mix and match of settings:

https://forum.proxmox.com/threads/gpu-passthrough-tutorial-reference.34303/

https://forum.proxmox.com/threads/nvidia-gpu-passthrough-assistance.27237/

https://pve.proxmox.com/wiki/Pci_passthrough

https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF

https://www.reddit.com/r/VFIO/comments/5sh41p/any_other_reasons_for_nvidia_driver_code_43/

I realize this isn't Fedora 26 or RyZen, but useful info regardless:

https://level1techs.com/article/ryzen-gpu-passthrough-setup-guide-fedora-26-windows-gaming-linux

I could've easily missed a step in one of them given all the information I'm trying to combine here.

6. I have the latest Nvidia Drivers installed (version 388).

7. IOMMU is working:

Code: 
root@pve-001:~# dmesg | grep -e IOMMU
[    0.615425] AMD-Vi: IOMMU performance counters supported
[    0.617069] AMD-Vi: Found IOMMU at 0000:00:00.2 cap 0x40
[    0.618547] perf/amd_iommu: Detected AMD IOMMU #0 (2 banks, 4 counters/bank).

root@pve-001:~# find /sys/kernel/iommu_groups/ -type l
/sys/kernel/iommu_groups/7/devices/0000:00:13.2
/sys/kernel/iommu_groups/7/devices/0000:00:13.0
/sys/kernel/iommu_groups/5/devices/0000:00:11.0
/sys/kernel/iommu_groups/3/devices/0000:00:09.0
/sys/kernel/iommu_groups/11/devices/0000:00:15.2
/sys/kernel/iommu_groups/11/devices/0000:00:15.0
/sys/kernel/iommu_groups/11/devices/0000:05:00.0
/sys/kernel/iommu_groups/1/devices/0000:00:03.0
/sys/kernel/iommu_groups/1/devices/0000:02:00.1
/sys/kernel/iommu_groups/1/devices/0000:00:03.1
/sys/kernel/iommu_groups/1/devices/0000:02:00.0
/sys/kernel/iommu_groups/8/devices/0000:00:14.2
/sys/kernel/iommu_groups/8/devices/0000:00:14.0
/sys/kernel/iommu_groups/8/devices/0000:00:14.3
/sys/kernel/iommu_groups/6/devices/0000:00:12.2
/sys/kernel/iommu_groups/6/devices/0000:00:12.0
/sys/kernel/iommu_groups/4/devices/0000:00:10.0
/sys/kernel/iommu_groups/12/devices/0000:00:18.4
/sys/kernel/iommu_groups/12/devices/0000:00:18.2
/sys/kernel/iommu_groups/12/devices/0000:00:18.0
/sys/kernel/iommu_groups/12/devices/0000:00:18.5
/sys/kernel/iommu_groups/12/devices/0000:00:18.3
/sys/kernel/iommu_groups/12/devices/0000:00:18.1
/sys/kernel/iommu_groups/2/devices/0000:00:08.0
/sys/kernel/iommu_groups/10/devices/0000:00:14.5
/sys/kernel/iommu_groups/0/devices/0000:00:02.2
/sys/kernel/iommu_groups/0/devices/0000:00:02.0
/sys/kernel/iommu_groups/0/devices/0000:01:00.0
/sys/kernel/iommu_groups/9/devices/0000:00:14.4

8. The vfio-pci driver is being used correctly:

Code: 
root@pve-001:~# lspci -k
02:00.0 VGA compatible controller: NVIDIA Corporation GK208B [GeForce GT 710] (rev a1)
Subsystem: eVga.com. Corp. GK208 [GeForce GT 710B]
Kernel driver in use: vfio-pci
Kernel modules: nvidiafb, nouveau

Other relevant information:

Code: 
root@pve-001:~# pveversion -v
    proxmox-ve: 5.1-25 (running kernel: 4.13.4-1-pve)
    pve-manager: 5.1-35 (running version: 5.1-35/722cc488)
    pve-kernel-4.13.4-1-pve: 4.13.4-25
    libpve-http-server-perl: 2.0-6
    lvm2: 2.02.168-pve6
    corosync: 2.4.2-pve3
    libqb0: 1.0.1-1
    pve-cluster: 5.0-15
    qemu-server: 5.0-17
    pve-firmware: 2.0-3
    libpve-common-perl: 5.0-20
    libpve-guest-common-perl: 2.0-13
    libpve-access-control: 5.0-7
    libpve-storage-perl: 5.0-16
    pve-libspice-server1: 0.12.8-3
    vncterm: 1.5-2
    pve-docs: 5.1-12
    pve-qemu-kvm: 2.9.1-2
    pve-container: 2.0-17
    pve-firewall: 3.0-3
    pve-ha-manager: 2.0-3
    ksm-control-daemon: 1.2-2
    glusterfs-client: 3.8.8-1
    lxc-pve: 2.1.0-2
    lxcfs: 2.0.7-pve4
    criu: 2.11.1-1~bpo90
    novnc-pve: 0.6-4
    smartmontools: 6.5+svn4324-1
    zfsutils-linux: 0.7.2-pve1~bpo90

But after all that, I still get Error Code 43. Note that the Microsoft Basic Display Adapter is not listed under Display Adapters.

Is it because I'm using VirtIO? All the guides seem to be using SCSI without VirtIO. I'd like as much performance as possible, but if it's just not happening with VirtIO, I can use SCSI.

I am getting this error when I run the VM:

Code: 
kvm: -device vfio-pci,host=02:00.0,id=hostpci0,bus=ich9-pcie-port-1,addr=0x0,romfile=/usr/share/kvm/GK208_BIOS_FILE.bin: Failed to mmap 0000:02:00.0 BAR 3. Performance may be slow

I have disabled the Framebuffer in the kernel settings:
Code: 
GRUB_CMDLINE_LINUX_DEFAULT="quiet amd_iommu=on video=vesafb:off,efifb:off"

But I am still seeing BIOS messages, up to a point, on the display.
Click to expand...

Hello, I had the same problem, after 16 hours, multiplicity how to (e.g. nvidia-kvm-patcher, msi mode). The problem was resolved when i try passthrough GeForce 960 instead GeForce 1050. Nothing change only video card, that all.
The latest nvidia driver worked!
960 pass trugh.png

gpu_conf.png
 
Code: 
cat /etc/modprobe.d/vfio.conf
options vfio-pci ids=10de:1c03,10de:10f1

vm conf
hostpci0: 04:00.0,x-vga=on,pcie=1
hostpci1: 04:00.1,pcie=1
machine: q35
cpu: host
balloon: 0
bios: ovmf
bootdisk: scsi0

cat /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on video=efifb:off pcie_acs_override=downstream"

my conf
 
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