Can't start Raspberry Pi Zero VM due to usb-ehci added

[conath]

UTM adds the -device usb-ehci to VMs even when the system is a Raspberry Pi Zero. This is not supported and means the VM won't start.

[osy]

Can you check if -usb works? The dev branch with the USB work uses -usb now.

[conath]

I can confirm that -usb works with the raspi0 system, but verified using qemu from Terminal instead of UTM.

[fgenoese]

Has this fix been removed? It appears that usb-ehci1 is being added in the current version, see:

UTM/Managers/UTMQemuSystem.m

Line 463 in 7fd0f08

[self pushArgv:[NSString stringWithFormat:@"ich9-usb-ehci1,id=usb-controller-%d", j]];

This prevents Raspberry Pi systems being emulated. Running UTM on macOS I get the following error:
qemu-aarch64-softmmu: -device ich9-usb-ehci1,id=usb-controller-0: No 'PCI' bus found for device 'ich9-usb-ehci1'

[conath]

@fgenoese The ICH9 USB controller is added if USB sharing is selected. (This specific USB controller is required to make QEMU USB sharing work AFAIK)
So to start your VM, you will need to set the number of USB sharing ports to 0.

[fgenoese]

Thanks @conath, that worked. Just wanted to add that the field is greyed out when in console display mode saying that "USB sharing is not supported in console display mode".

A reasonable approach might be to add if !(self.configuration.displayConsoleOnly) around the whole block (starting at L450). What do you think?

[conath]

That sounds good to me.