Hi,
We are using xen-4.8 stable version. Our board has only USB-3.0.
We trying to achieve PVUSB. Added following in the DomU config file.
Applied the attached patch for USB front-end driver. Using qemu as back-end.
domu.cfg
*usbctrl=['version=2, ports=8', ]*
*usb=['1.6, controller=0, port=1']*
Attached the USB device(mouse and keyboard) using below commands.
* xl usbdev-attach domU hostbus=1 hostaddr=6 controller=0 port=1 (Mouse)*
* xl usbdev-attach debian hostbus=1 hostaddr=7 controller=0 port=1
(Keyboard)*
After executing above getting below logs.
[2.986905] synth uevent: /devices/virtual/input/input0: failed to send
uevent
[2.986919] input input0: uevent: failed to send synthetic uevent
[ 25.689516] usb 1-1: new low-speed USB device number 2 using vusb
[ 25.689664] CPU: 0 PID: 282 Comm: kworker/0:2 Not tainted
4.14.0-rc7-linaro-hikey960 #54
[ 25.689683] Hardware name: XENVM-4.8 (DT)
[ 25.689706] Workqueue: usb_hub_wq hub_event
[ 25.689721] task: 80001cd69c00 task.stack: 0954
[ 25.689743] PC is at xenhcd_gnttab_map.isra.3+0xc/0x18
[ 25.689762] LR is at xenhcd_do_request+0xe8/0x330
[ 25.689778] pc : [] lr : [] pstate:
21c5
[ 25.689800] sp : 09543950
[ 25.689811] x29: 09543950 x28: 8f8d1200
[ 25.689831] x27: 0001 x26: 0001
[ 25.689847] x25: x24: 80001da7a000
[ 25.689864] x23: x22:
[ 25.689880] x21: 80001c70b1b8 x20:
[ 25.689900] x19: 80001db64228 x18: 0010
[ 25.689918] x17: af33bb60 x16: 0020
[ 25.689935] x15: x14: 8919537f
[ 25.689954] x13: 0919538d x12: 09069df0
[ 25.689973] x11: 0858afc8 x10: 09543890
[ 25.689990] x9 : 0914a000 x8 : 80001c70b1e0
[ 25.690009] x7 : x6 : 0040
[ 25.690027] x5 : 0001 x4 : 00ce
[ 25.690043] x3 : 80001d941000 x2 : 0017
[ 25.690059] x1 : 0001 x0 : 0040
[ 25.690078] Process kworker/0:2 (pid: 282, stack limit =
0x0954)
[ 25.690100] Call trace:
[ 25.690110] Exception stack(0x09543810 to 0x09543950)
[ 25.690130] 3800: 0040
0001
[ 25.690151] 3820: 0017 80001d941000 00ce
0001
[ 25.690172] 3840: 0040 80001c70b1e0
0914a000
[ 25.690194] 3860: 09543890 0858afc8 09069df0
0919538d
[ 25.690218] 3880: 8919537f 0020
af33bb60
[ 25.690243] 38a0: 0010 80001db64228
80001c70b1b8
[ 25.690267] 38c0: 80001da7a000
[ 25.690288] 38e0: 0001 0001 8f8d1200
09543950
[ 25.690312] 3900: 0883b1f0 09543950 0883b0fc
21c5
[ 25.690333] 3920: 095439a0 081154c8
0883b1dc
[ 25.690354] 3940: 09543950 0883b0fc
[ 25.690371] [] xenhcd_gnttab_map.isra.3+0xc/0x18
[ 25.690391] [] xenhcd_urb_enqueue+0xe4/0x138
[ 25.690411] [] usb_hcd_submit_urb+0xa0/0x920
[ 25.690431] [] usb_submit_urb+0x31c/0x518
[ 25.690447] [] usb_start_wait_urb+0x54/0xd8
[ 25.690466] [] usb_control_msg+0xa4/0xf0
[ 25.690482] [] hub_port_init+0x1ec/0xa28
[ 25.690497] [] hub_event+0x7a4/0xf78
[ 25.690517] [] process_one_work+0x1cc/0x338
[ 25.690535] [] worker_thread+0x44/0x470
[ 25.690553] [] kthread+0x12c/0x130
[ 25.690571] [] ret_from_fork+0x10/0x18
Able to see that front-end is able attached these devices.
But the problem is DomU hangs.
--
Thanks & Regards
Vikram KS
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From e8a71989a8188f9f420b58e23d723d6818e794d7 Mon Sep 17 00:00:00 2001
From: Juergen Gross
Date: Mon, 13 Jun 2016 15:53:57 +0200
Subject: [PATCH 1/2] usb: Add Xen pvUSB protocol description
Patch-Mainline: Not yet, work in progress
References: fate#315712
Add the definition of pvUSB protocol used between the pvUSB frontend in
a Xen domU and the pvUSB backend i
