Add USB options to Input configuration

[conath]

I would like to be able to switch USB input device emulation on and off via the Input tab. Maybe a segmented control with the options "PS/2 keyboard", "PS/2 keyboard and mouse" and "USB Keyboard and Mouse" could be added to replace the "Legacy PS/2 Mode" toggle.

On that note, it would make sense to move the "USB 3 XHCI support" toggle to the Input tab as well and have all of the devices connect to this USB bus. Even better, maybe we could allow choosing UHCI, ECHI and XHCI via segmented control? (if one chooses UHCI, that might mean we have to disable the USB Sharing feature - IIRC that can only use EHCI or XHCI)

Back story (as mentioned in #3031)

UTM used to add a -device usb-kbd to the QEMU parameters unless "Legacy PS/2" was enabled in the Input tab. In an update, this was removed because UTM will always add a PS/2 keyboard for compatible guests, regardless of the USB keyboard parameter.

However this change means that guest OSs that don't support PS/2 (namely Mac OS X / macOS) now don't receive keyboard input anymore. A workaround is to add the line -device usb-kbd,bus=usb-bus.0 to the QEMU arguments tab, which restores the USB keyboard input.

[adespoton]

As an addition to this, Mac OSes (9.0.4, 10.0, 10.1) that use CUDA instead of PMU use "legacy" to enable ADB mouse and keyboard, not PS/2. And CUDA doesn't support a USB bus, so providing a workaround via USB will only make things worse.

My current solution is to grab the mouse and keyboard while OpenBIOS is still loading; this forces UTM to use the ADB mouse and keyboard, so when the SPICE devices kick in, they don't affect the already-established mouse and keyboard connections. Releasing the mouse and keyboard permanently loses them, however. Once released, you can't get them back.

[osy]

Even better, maybe we could allow choosing UHCI, ECHI and XHCI via segmented control?

What is the use case for this? I always want to make sure that any additional UI will serve 90% of the users so we don't end up with hundreds of knobs for every little thing five years down the line.

[conath]

I’m happy with the changes here, would still prefer if the USB3/2 toggle was in the Input tab or maybe Drives tab. The issue is that the USB bus affects emulated USB disk transfer speeds, and it’s not intuitive to go to the Sharing tab to change the USB bus to 3.0. (Keeping the input device on USB 2 is fine with me)

[startergo]

A workaround is to add the line -device usb-kbd,bus=usb-bus.0 to the QEMU arguments tab, which restores the USB keyboard input.

I wish it restored it. I can use the keyboard without an issue in Snow Leopard, but not in Mavericks. And if I don't force the PS/2 controller even the mouse stops working. Both of them are not attached to a USB BUS in the ioregistry. If I can get Apple Remote Desktop connected this is my only option

sudo ./pcitree.sh
#=========================================================================================
┬[0000:00]
├─00:00.0  #                [8086:29c0] [060000]          Host bridge                          : Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller
├─00:01.0  #                [1af4:1000] [020000]          Ethernet controller                  : Red Hat, Inc. Virtio network device
├─00:02.0  #                [1af4:1050] [030000] (rev 01) VGA compatible controller [VGA controller] : Red Hat, Inc. Virtio GPU
├─00:03.0  #                [8086:2415] [040100] (rev 01) Multimedia audio controller          : Intel Corporation 82801AA AC'97 Audio Controller
├─00:04.0  # g1x1           [1033:0194] [0c0330] (rev 03) USB controller [XHCI]                : NEC Corporation uPD720200 USB 3.0 Host Controller
├─00:05.0  # g1x1           [1033:0194] [0c0330] (rev 03) USB controller [XHCI]                : NEC Corporation uPD720200 USB 3.0 Host Controller
├─00:06.0  #                [1af4:1003] [078000]          Communication controller             : Red Hat, Inc. Virtio console
├─00:07.0  #                [1af4:1005] [00ff00]          Unclassified device                  : Red Hat, Inc. Virtio RNG
├─00:08.0  #                [1af4:1002] [00ff00]          Unclassified device                  : Red Hat, Inc. Virtio memory balloon
├─00:09.0  #                [8086:24cd] [0c0320] (rev 10) USB controller [EHCI]                : Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller
├─00:1d.0  #                [8086:2934] [0c0300] (rev 03) USB controller [UHCI]                : Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1
├─00:1d.1  #                [8086:2935] [0c0300] (rev 03) USB controller [UHCI]                : Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2
├─00:1d.2  #                [8086:2936] [0c0300] (rev 03) USB controller [UHCI]                : Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3
├─00:1d.7  #                [8086:293a] [0c0320] (rev 03) USB controller [EHCI]                : Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1
├─00:1f.0  #                [8086:2918] [060100] (rev 02) ISA bridge                           : Intel Corporation 82801IB (ICH9) LPC Interface Controller
├─00:1f.2  #                [8086:2922] [010601] (rev 02) SATA controller [AHCI 1.0]           : Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA Controller [AHCI mode]
└─00:1f.3  #                [8086:2930] [0c0500] (rev 02) SMBus                                : Intel Corporation 82801I (ICH9 Family) SMBus Controller

Compare the above to the working Snow Leopard Keyboard:

sudo ./pcitree.sh
#=========================================================================================
┬[0000:00]
├─00:00.0  #                [8086:29c0] [060000]          Host bridge                          : Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller
├─00:01.0  #                [8086:100e] [020000] (rev 03) Ethernet controller                  : Intel Corporation 82540EM Gigabit Ethernet Controller
├─00:02.0  #                [1af4:1050] [030000] (rev 01) VGA compatible controller [VGA controller] : Red Hat, Inc. Virtio 1.0 GPU
├─00:03.0  #                [8086:293a] [0c0320] (rev 03) USB controller [EHCI]                : Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1
├─00:04.0  #                [8086:2934] [0c0300] (rev 03) USB controller [UHCI]                : Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1
├─00:05.0  #                [8086:2935] [0c0300] (rev 03) USB controller [UHCI]                : Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2
├─00:06.0  #                [8086:2936] [0c0300] (rev 03) USB controller [UHCI]                : Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3
├─00:07.0  #                [1af4:1003] [078000]          Communication controller             : Red Hat, Inc. Virtio console
├─00:08.0  #                [1af4:1005] [00ff00]          Unclassified device                  : Red Hat, Inc. Virtio RNG
├─00:09.0  #                [1af4:1002] [00ff00]          Unclassified device                  : Red Hat, Inc. Virtio memory balloon
├─00:1d.0  #                [8086:2934] [0c0300] (rev 03) USB controller [UHCI]                : Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1
├─00:1d.1  #                [8086:2935] [0c0300] (rev 03) USB controller [UHCI]                : Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2
├─00:1d.2  #                [8086:2936] [0c0300] (rev 03) USB controller [UHCI]                : Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3
├─00:1d.7  #                [8086:293a] [0c0320] (rev 03) USB controller [EHCI]                : Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1
├─00:1f.0  #                [8086:2918] [060100] (rev 02) ISA bridge                           : Intel Corporation 82801IB (ICH9) LPC Interface Controller
├─00:1f.2  #                [8086:2922] [010601] (rev 02) SATA controller [AHCI 1.0]           : Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA Controller [AHCI mode]
└─00:1f.3  #                [8086:2930] [0c0500] (rev 02) SMBus                                : Intel Corporation 82801I (ICH9 Family) SMBus Controller

I can see that the SL's Keyboard is attached under :

├─00:1d.7  #                [8086:293a] [0c0320] (rev 03) USB controller [EHCI]                : Intel Corporation 82801I (ICH9 

[startergo]

I got it working:

Added OHCI (USB1.1) controller:

-device pci-ohci -device usb-kbd -device usb-tablet

https://en.wikibooks.org/wiki/QEMU/Devices/USB/Root#EHCI

You can always add the xHCI controller, but the order is important. the OHCI controller should be the last in the list otherwise it will not work:

-device qemu-xhci -device usb-kbd -device usb-tablet -global nec-usb-xhci.msi=off
-device pci-ohci -device usb-kbd -device usb-tablet

[startergo]

After more testing here is what I found. On Intel machine:
Mavercks as a guest OS:
A combination of Use Hypervisor, force PS2 controller and -device pci-ohci -device usb-kbd -device usb-tablet works fine. Anything else with Use Hypervisor leaves the keyboard and the mouse undetected.
Use Hypervisor turned off and -device pci-ohci -device usb-kbd -device usb-tablet or -device keyboard works fine for keyboard and mouse detection.
For 10.8.6 -device pci-ohci -device usb-kbd -device usb-tablet or -device keyboard or force PS2 controller are not required for proper detection of the keyboard and the mouse even with Use Hyervisor enabled