Hi All, 

Had been trying to get this working for last 2 days and no luck so far. 

Ryzen 3700X, 1050 Ti 4GB GPU, HD7950 3GB GPU

 

Aim is to run OSX Monterey & Windows 11 (non gaming). 

I followed guides and setup both VM's and both VM's show install prompt via VNC. However all attempts to do GPU passthrough is failing. Both VM's start properly but end up with black screen. 

 

Attempted options 

1. kernel /bzimage
   append pcie_acs_override=downstream,multifunction video=vesafb:off video=efifb:off initrd=/bzroot
2. Bios set to Legacy
3. Changing primary GPU via BIOS
4. Changing both machine types (Q35 and i440)
5.  multifunction='on' etc. 
6. Tried 3-4 VBIOS from tech power up for HD7950, was able to dump 1050Ti bios using spaceinvader tutorial. 

 

dmesg output 

 

[ 2456.113928] br0: port 2(vnet6) entered forwarding state
[ 2456.824483] vfio-pci 0000:0a:00.0: vfio_ecap_init: hiding ecap 0x19@0x270
[ 2456.824493] vfio-pci 0000:0a:00.0: vfio_ecap_init: hiding ecap 0x1b@0x2d0

lspci output

 

https://pastebin.com/wg1Lt2XG

 

t-diagnostics-20220411-2156.zip

Sounds like wrong vbios, dump your own.

 

10 hours ago, jugaadkabaap said:

kernel /bzimage
append pcie_acs_override=downstream,multifunction video=vesafb:off video=efifb:off initrd=/bzroot

correct

 

10 hours ago, jugaadkabaap said:

Bios set to Legacy

not needed, but ok

 

10 hours ago, jugaadkabaap said:

Changing primary GPU via BIOS

may be not needed but correct

 

10 hours ago, jugaadkabaap said:

Changing both machine types (Q35 and i440)

i440fx doesn't work with mac os

Moreover, in your mac os vm:

<type arch='x86_64' machine='pc-q35-6.2'>hvm</type>

Don't use 6.2, use max 6.0.

 

10 hours ago, jugaadkabaap said:

multifunction='on' etc. 

correct

 

10 hours ago, jugaadkabaap said:

Tried 3-4 VBIOS from tech power up for HD7950, was able to dump 1050Ti bios using spaceinvader tutorial.

1050ti not working with mac os monterey, max supported high sierra.

Don't use downloaded vbios

I am not really certain. Its almost 3 days and I am almost on the verge of giving up. 

I am unable to dump from HD7950, tried space invader script and it always gives cat error. I don't have a windows installation to run gpuz. 

I was able to dump the 1050Ti, but even that is not working - getting black screen. 

@ghost82 Wrt suggestions, changed to 6.0 and yes I am using Nvidia only with Win11 VM. 

I switched physical positions of GPU, tried running one gpu at a time. Every single thing leads to failure. 

Which makes me think if issue is something related to motherboard settings thats preventing gpu from being passed through. 

Motherboard is Aorus Elite Wifi X570 fwiw. 

Edit - updated MB bios to see if it helps - but no luck. 

 

Edit2 - Managed to boot into live windows and dumped rom (both HD7950 and 1050Ti) via GPUZ. 

Used the newly dumped rom's - still same issue. 

 

For AMD Card

[  435.549828] vfio-pci 0000:04:00.0: enabling device (0000 -> 0003)
[  435.550255] vfio-pci 0000:04:00.0: vfio_ecap_init: hiding ecap 0x19@0x270
[  435.550270] vfio-pci 0000:04:00.0: vfio_ecap_init: hiding ecap 0x1b@0x2d0

 

For 1050Ti

[  259.863279] vfio-pci 0000:0a:00.0: vfio_ecap_init: hiding ecap 0x19@0x900
[  259.865330] vfio-pci 0000:0a:00.0: No more image in the PCI ROM

 

Edit 3 

 

lspci -knn | grep -i -A 2 vga
 

04:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280] [1002:679a]
        Subsystem: PC Partner Limited / Sapphire Technology Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280] [174b:3000]
        Kernel driver in use: vfio-pci
--
0a:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP107 [GeForce GTX 1050 Ti] [10de:1c82] (rev a1)
        Subsystem: Micro-Star International Co., Ltd. [MSI] GP107 [GeForce GTX 1050 Ti] [1462:8c96]
        Kernel driver in use: vfio-pci

 

Both GPU's are binded to VFIO correctly. (Pls ignore if device id are opposite from earlier diasnostic file as I swapped the gpu positions)

 

Can someone help me figure what exactly is causing issues with GPU pass through ?

Edited April 13, 20224 yr by jugaadkabaap

Resolved almost all issues (except Hackintosh with HD7950 passthrough)

 

Quick summary of solution. 

 

Booted into Windows with VNC as primary & Nvidia as secondary. Installed Nvidia drivers to Windows. Passed through rom file etc. 

 

Same steps was causing issues with AMD card - windows 11 was giving code 43. Realized that for Win11 - Unraid needs OVMF as BIOS and my AMD card HD7950 doesn't have UEFI support. So flashed a custom UEFI patched rom into my GPU. Re-enabled and installed drivers. 

 

Played around with a lot of Bios settings

 

For some reason, OSX is still throwing errors. 

hi @jugaadkabaap

 

will  you be able to describe how to do a nvidia as secondary setup? 

I don't have any display if i set my video card as direct graphics for my VM, i made unraid as my main OS and my pc as a VM. . 

 

Thank you