Gosh - that must be slower than something that's really slow.michaln wrote:I think I can see the problem with xHCI. It's actually macOS being either too clever or too dumb (take your pick).
The quick workaround is to reduce the VM's memory size. With 3GB, I have High Sierra beta 6 VM booting with xHCI (in fact booting off of a USB3 stick).
Joking aside, I guess we have to wait for the VB developers to also emulate the behaviour that Apple now requires. Apple's forward path seems to be no more 32 bit apps so I guess all the hardware they have made that is capable of running High Sierra or later can also utilise this trick. I really doubt that they will patch their USB driver to allow it to run on VirtualBox.
For now, I'll just stick with the USB 2.0 emulation which seems to work OK with 8GB of ram assigned to the VM.
Bryan