QEMU GPU vfio-pci pass through

@Balaton

I will do various tests to verify a small step has been made
after all it is the first time that I begin to understand a little how the drivers work.
I hope it can be useful a little

@Balaton

Inside Enhancer Software 2.2
there is a folder with this inside:
Firmware etc. etc.



And as you say, certainly those who know AmigaOS can say something.
I'm having fun with qemu.
Of course it's up to them to try to help you with emulation.
I haven't finished Elden Ring (the expansion) yet

@white
There is no difference in installing Enhancer Software on emulated virtual machine compared to real machine. I don't know how Enhancer works but I don't think you have to manually copy stuff. You'd just run the installer and let it do what it needs to install the driver files then zip the Kickstart folder after Enhancer installer modified it as needed and boot with that. That should be all that's needed. On real machine you also have to install Enhancer first before adding the RadeonRX card so that's the same on QEMU as well.

@Balaton

Now I reinstall them on qemu with sm501 I don't remember it asking for Radeon drivers, I'll try now
Or maybe I didn't install them because obviously I didn't need them or if it blocked the installer I don't remember now I'll try.


Besides, I've been using Arch for 3-4 days.
I'll do some testing.
I just started trying.

@Joerg
I downloaded the .pdf you recommended, thanks

@Balaton
I sent you a pm

@white
The aCube pdf Joerg has sent mentions you need to copy the Firmware directory to the root of the AmigaOS volume (I guess that's SYS: if you booted from the hard disk) so maybe that's at least what's missing. But to also get 3D you probably need more libs elsewhere so the Enhancer installer should take care of all that.

@Balaton

Just redone the installation Enhancer 2.2 installs everything including Radeon drivers without crashing with -sm501 I have here in front of me the Workbench screen the GPU is recognized as "Radeon HD 7900" but unfortunately it's as if everything is blocked the mouse remains blocked but now in the Workbench you can see the icons.
But not the background.
I removed multifunction=on from the command line just to do some testing and also the audio of the card.

@white

If you have the possibility, show "dmesg" (run the command in the console and paste the last few lines) from Linux after you have frozen QEMU
Maybe you will see something.

@white

Quote:

If the card is recognized under AmigaOs4.1 the drivers are already running....what else you could do is set “interrupt=yes” to “no” for the AmigaOs4.1 driver as far as I know geennaams has mentioned it somewhere here in this thread.

You can find the driver in Sys:devs/monitors/

I think you are on the right way....

@Maijestro

yes, your observation is right, the "radeon" is missing in "devs".
probably because by installing Enhancer Software 2.2 it does not detect any Radeon GPU at the time of installation.

I do not know if @Balaton can create a false way to make it believe that there is a Radeon card at the time of installation.

not yet received comments on the firmware that are inside Enhancer Software 2.2, I tried to search for them after installation but I can't find them, see screenshot above.

It would be useful to see the tooltypes of a real Radeon in DEVS
Now I'm putting these:



Should I put "Radeon.HD" in the tooltypes?

@Balaton could somehow simulate the presence of these files
but mine is just a hypothesis, I don't know the topic.

firmware: Radeon TAHITI_uvd.bin
amdgpu: POLARIS10_uvd.bin
amdgpu: POLARIS11_uvd.bin
amdgpu: POLARIS12_uvd.bin

I'll also try to modify the ISO to see what happens.

This is the card I'm using and it's TAHITI :
https://www.techpowerup.com/gpu-specs/ ... e-dual-x-r9-280x-oc.b2463

@smarkusg
Thanks for the tip.

@white
Quote:Try something like
Ideally INTERRUPT should be set to Yes, but No may help if everything is very slow on qemu with vfio pci pass-through.

@balaton
Quote:Of course more is required for 3D, HW accelerated video playback, etc., but the Enhancer Software installer will take care of it and the first step is to get 2D running adding to the Kicklayout, copying the Radeon(HD|RX).chip drivers to Kickstart, and on qemu with bboot additionally updating kickstart.zip after any changes in Kickstart.
With qemu you have the option to use sm501/2 emulation if something doesn't work and fix the Kicklayout, configuration, etc. that way, but not on real hardware for which the ACube PDF was created.
On real hardware if the contents of Kickstart or Kicklayout are wrong you don't get any display on the monitor and have boot from an install CD or USB-stick - which often (probably only exceptions X5000 and A1222 versions) don't include the Radeon HD/RX drivers (no RX driver at all, for HD in some cases a lite version limited to max. 800x600 and without any HW accelleration).