I am using scripts to manage the host-to-guest and vise versa transitions; the repo link is here.
I followed this guide by Niteshade to setup my computer. He has a shortened version of his guide in the video description.
After starting the VM via virsh commands (virsh start win10), dmesg outputs this error in obvious relation to the GPU at the same time that the screen goes black:
[drm:amdgpu_pci_remove [amdgpu]] *ERROR* Hotplug removal is not supported
The full log output after the VM start command is entered is here:
[217103.397008] rfkill: input handler enabled
[217104.397562] Console: switching to colour dummy device 80x25
[217104.404470] [drm:amdgpu_pci_remove [amdgpu]] *ERROR* Hotplug removal is not supported
[217104.405590] [drm] amdgpu: finishing device.
[217104.552833] [drm] psp command (0x2) failed and response status is (0x117)
[217104.552835] [drm] free PSP TMR buffer
[217104.658003] [TTM] Finalizing pool allocator
[217104.697318] [TTM] Finalizing DMA pool allocator
[217104.697348] [TTM] Zone kernel: Used memory at exit: 0 KiB
[217104.697350] [TTM] Zone dma32: Used memory at exit: 0 KiB
[217104.697353] [drm] amdgpu: ttm finalized
[217104.697748] vfio-pci 0000:0f:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
[217105.018090] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation
[217119.845121] vfio-pci 0000:06:00.0: vfio_ecap_init: hiding ecap 0x19@0x200
[217120.901236] vfio-pci 0000:09:00.0: vfio_ecap_init: hiding ecap 0x1e@0x20c
[217120.929155] vfio-pci 0000:0f:00.0: vfio_ecap_init: hiding ecap 0x19@0x270
[217120.929168] vfio-pci 0000:0f:00.0: vfio_ecap_init: hiding ecap 0x1b@0x2d0
My system then becomes entirely unresponsive in the graphical sense; the only way to get it to do anything is either type the panic sequence (REISUB) or SSH into it.
This issue seems to be entirely undocumented other than a private AMD Community forum of which I do not have access to.
I'm using a Gigabyte VEGA 56 on a Gigabyte Aorus Master WiFi motherboard.
How do I solve the hotplug issue?
I'm using Ubuntu 20.04.3 LTS.
Edit: The full text version of Niteshade's guide that I followed is below
1:28 - Step 1. Update ubuntu or Elementary OS
====================================================== sudo apt-get update -y sudo apt-get upgrade -y
2:21 - Step 2. Update grub loader
Edit Grub:
sudo nano /etc/default/grub
AMD: FIND the line - GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" CHANGE
it to - GRUB_CMDLINE_LINUX_DEFAULT="amd_iommu=on iommu=pt iommu=1
video=efifb:off quiet splash"
INTEL: FIND the line - GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
CHANGE it to - GRUB_CMDLINE_LINUX_DEFAULT="intel_iommu=on iommu=pt
iommu=1 video=efifb:off quiet splash"
sudo update-grub
sudo reboot
Once rebooted, check that the grub loader loaded the paramaters with:
sudo cat /proc/cmdline
it should look similar to:
BOOT_IMAGE=/boot/vmlinuz-5.4.0-60-generic
root=UUID=0587b30a-06cf-4df2-82fe-fb8db547e1c5 ro amd_iommu=on
iommu=pt iommu=1 video=efifb:off quiet splash vt.handoff=1
5:39 - Step 3. Find Your GPU bus address and its audio component
====================================================== Now you need to find you gpu pci address run the following command:
lspci -nnk
you will have a large output to the terminal, look for your GPU
details, mine look like this: Note the address mine is in bold 06.00.0
and 06.00.1
06:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X] [1002:67df]
(rev e7)
Subsystem: XFX Pine Group Inc. Ellesmere [Radeon RX 470/480/570/580]
[1682:c580] Kernel driver in use: amdgpu Kernel modules: amdgpu
06:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI]
Ellesmere [Radeon RX 580] [1002:aaf0] Subsystem: XFX Pine Group Inc.
Ellesmere [Radeon RX 580] [1682:aaf0] Kernel driver in use:
snd_hda_intel Kernel modules: snd_hda_intel
6:42 - Step 4: Install Virtualization Software
sudo apt install qemu-kvm libvirt-clients libvirt-daemon-system
bridge-utils virt-manager ovmf
7:44 - Step 5: Configure Libvirt
====================================================== Install the virtualization software:
sudo apt install qemu-kvm libvirt-clients libvirt-daemon-system
bridge-utils virt-manager ovmf
Next update the libvirt configuration:
sudo nano /etc/libvirt/libvirtd.conf
find each of these in the file, or add them if they are not there:
#unix_sock_group = "libvirt"
#unix_sock_rw_perms = "0770"
#log_filters="1:qemu"
#log_outputs="1:file:/var/log/libvirt/libvirtd.log"
change to:
unix_sock_group = "libvirt" unix_sock_rw_perms = "0770"
log_filters="1:qemu"
log_outputs="1:file:/var/log/libvirt/libvirtd.log"
if it is not in the file, simply add it. If it is not commented out
with #, then just leave it as it is and exit the file.
Now run the following commands:
sudo usermod -a -G libvirt $(whoami) sudo systemctl start libvirtd
sudo systemctl enable libvirtd
11:03 - Step 6: Configure Qemu
edit:
sudo nano /etc/libvirt/qemu.conf
find:
#user = "root"
#group = "root"
change to:
user = "YOUR USERNAME" group = "YOUR USERNAME"
Restart Libvirt:
sudo systemctl restart libvirtd
sudo usermod -a -G kvm "YOUR USERNAME" sudo usermod -a -G libvirt
"YOUR USERNAME"
13:09 - Step 7: Create VM
Open Virtual-Manager
sudo virt-manager
During the setup of the Vm - choose the option to edit the VM before
installation
In Overview:
- set chipset to Q35
- set Bios to EUFI
In Boot:
Ensure there are no IDE drives before contuing. Then install windows
as expected.
20:40 - Step 8: Add GPU/Mouse and keyboard as passthrough
23:59 - Step 9: Setup hooks
sudo apt-get install git
sudo git clone https://gitlab.com/risingprismtv/sing...
26:19 - Step 10: Setup GPU ROM File
Website to get ROM files: https://www.techpowerup.com/vgabios/
33:45 - Step 11: Start virtual machine
