Hi,
On 12/30/2013 05:03 PM, Stewart Adam wrote:
On 2013-12-30 10:37 AM, Hans de Goede wrote:
Hi,
On 12/29/2013 08:44 AM, Stewart Adam wrote:
Hi,
I have been attempting to attach a USB keyboard & mouse from the host to a
Windows 7 guest using QEMU's USB2 controller. The keyboard seems to attach
correctly, however I have trouble with certain mice and devices. When
starting the guest, the devices remain attached for a second or two, then
they disconnect. the libvirt logs show that it no longer sees the USB
device, and I see this in dmesg:
[ 10.876071] usb 3-13: reset full-speed USB device number 2 using xhci_hcd
[ 10.888206] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88041917f740
[ 10.888209] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88041917f800
[ 10.888210] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88041917f7c0
[ 11.041209] usb 3-14: reset full-speed USB device number 3 using xhci_hcd
[ 11.054379] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with
disabled ep ffff8800c8d559c0
[ 11.054383] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with
disabled ep ffff8800c8d55440
<repeats for some time>
[ 87.476806] usb 3-14: new full-speed USB device number 4 using xhci_hcd
[ 87.491908] usb 3-14: New USB device found, idVendor=046d, idProduct=c066
[ 87.491911] usb 3-14: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 87.491912] usb 3-14: Product: G9x Laser Mouse
[ 87.491914] usb 3-14: Manufacturer: Logitech
[ 87.491914] usb 3-14: SerialNumber: 081BB92CA70018
[ 87.494697] input: Logitech G9x Laser Mouse as
/devices/pci0000:00/0000:00:14.0/usb3/3-14/3-14:1.0/input/input16
[ 87.494994] hid-generic 0003:046D:C066.0008: input,hidraw0: USB HID
v1.11 Mouse [Logitech G9x Laser Mouse] on usb-0000:00:14.0-14/input0
[ 87.498834] input: Logitech G9x Laser Mouse as
/devices/pci0000:00/0000:00:14.0/usb3/3-14/3-14:1.1/input/input17
[ 87.499078] hid-generic 0003:046D:C066.0009: input,hiddev0,hidraw1: USB
HID v1.11 Keyboard [Logitech G9x Laser Mouse] on usb-0000:00:14.0-14/input1
As you can see the device re-attaches to the host. The device is plugged
into a USB2 port, but it appears to be controlled by Intel's XHCI controller:
00:14.0 USB controller [0c03]: Intel Corporation 8 Series/C220 Series
Chipset Family USB xHCI [8086:8c31] (rev 04)
What seems to be happening is that the guest is getting errors when talking
to the device and keeps resetting
the device. And at one point in time the many resets lead to a disconnect /
reset.
Hi Hans,
In the interim to get things working I ended up passing through the entire PCI
controller (all USB ports) to Windows and the same device doesn't reset with
the Windows native xHCI driver.
I can easily undo that and I'll run some tests again with USB redirection.
Correct, and I've written some fixes for that recently which are not in F-20 I
believe, which are related to reset handling. So I believe that this will
likely be fixed in F-21 likely (or maybe with an F-20 update, depending on
if upstream adds them to a bugfix release of the existing qemu).
So if you've a working solution for now, it may be best to just retest with
F-21.
So the problem is the many resets. What usb redirection are you using, are
you using qemu's host redirection,
or are you using spice's usb redirection. If you don't know please describe
how you're redirecting the
devices (ie which cmdline you use, or which gui options you choose).
I'm using libvirt & virt-manager as well as 'virsh attach-device' from the
command line, so if I am not mistaken this is QEMU's host USB passthrough.
If you're using qemu's host redirection code can you retry with spice's
usbredir code ?
Is this possible by tweaking libvirt? Note that I'm also running VFIO VGA
passthrough so I don't have a spice display... I don't know if that makes a
difference.
That is a bit tricky, without a spice display you need to use usbredirserver
to export the devices (a small standalone app to share a usbdevice over tcp)
and configure a tcp connection rather then a spice one when adding a usbredir
device in virt-manager (you can do this from the ui).
Regards,
Hans
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