USB Passthrough in Qemu without KVM?

kq6up · 06-27-2023, 03:40 PM

I am successfully running WinXP (64bit version) on a Raspberry Pi 4, I was not able to get this to work in virt-manager and I am assuming because I obviously can't do this with the hypervisor in the KVM module because the Pi is a risk processor not an x86_64 processor. Virtual manager has the best USB passthrough since it is in kernel space it just rips the USB right out and plugs it into the host regardless whether the hardware was PnP'd in Linux. Is it possible to do this in full emulation with qemu not running KVM from the commandline? I would have installed xp 64 if x86_64 was an option in virt-manager, but it was only giving me options that would be ran by KVM in hypervisor mode. I hope this makes sense, and I can get this going.

I used this article to get a USB -> UART cable to be recognized in Windows:

https://unix.stackexchange.com/quest...u-command-line

but for some reason it does not pick up the USB Soundcard that I need for a
legacy application.

Why would this work for the UART but not the USB sound interface (I tried two different ones).

Thanks in advance.

-KQ6UP

wpeckham · 06-28-2023, 10:52 AM

Quote:

Originally Posted by kq6up

I am successfully running WinXP (64bit version) on a Raspberry Pi 4, I was not able to get this to work in virt-manager and I am assuming because I obviously can't do this with the hypervisor in the KVM module because the Pi is a risk processor not an x86_64 processor. Virtual manager has the best USB passthrough since it is in kernel space it just rips the USB right out and plugs it into the host regardless whether the hardware was PnP'd in Linux. Is it possible to do this in full emulation with qemu not running KVM from the commandline? I would have installed xp 64 if x86_64 was an option in virt-manager, but it was only giving me options that would be ran by KVM in hypervisor mode. I hope this makes sense, and I can get this going.

I used this article to get a USB -> UART cable to be recognized in Windows:

https://unix.stackexchange.com/quest...u-command-line

but for some reason it does not pick up the USB Soundcard that I need for a
legacy application.

Why would this work for the UART but not the USB sound interface (I tried two different ones).

Thanks in advance.

-KQ6UP

What is the installed RPi operating system?
WinXP is the client, but what is the HOST?