Hi, I was working on the work. But I was busing preparing some job interviews in the last three months, sorry for this long delay. I will update my progress in a few days.
Thanks! Bo Cao On Mon, Nov 10, 2014 at 4:37 PM, Chun Yan Liu <cy...@suse.com> wrote: > Is there any progress on this work? I didn't see new version after this. > Anyone knows the status? > > Thanks, > Chunyan > > >>> On 8/11/2014 at 04:23 AM, in message > <1407702234-22309-1-git-send-email-caobosi...@gmail.com>, Bo Cao > <caobosi...@gmail.com> wrote: > > Finally I have a workable version xl/libxl support for PVUSB. Most of > > its commands work property now, but there are still some probelm to be > > solved. > > Please take a loot and give me some advices. > > > > == What have been implemented ? == > > I have implemented libxl functions for PVUSB in libxl_usb.c. It mainly > > consists of two part: > > usbctrl_add/remove/list and usb_add/remove/list in which usbctrl denote > usb > > controller in which > > usd device can be plugged in. I don't use "ao_dev" in > > libxl_deivce_usbctrl_add since we don't need to > > execute hotplug script for usbctrl and without "ao_dev", adding default > > usbctrl for usb device > > would be easier. > > > > For the cammands to manipulate usb device such as "xl usb-attach" and "xl > > usb-detach", this patch now only > > support to specify usb devices by their interface in sysfs. Using this > > interface, we can read usb device > > information through sysfs and bind/unbind usb device. (The support for > > mapping the "lsusb" bus:addr to the > > sysfs usb interface will come later). > > > > == What needs to do next ? == > > There are two main problems to be solved. > > > > 1. PVUSB Options in VM Guest's Configuration File > > The interface in VM Guest's configuration file to add usb device is: > > "usb=[interface="1-1"]". > > But the problem is now is that after the default usbctrl is added, the > state > > of usbctrl is "2", e,g, "XenbusStateInitWait", > > waiting for xen-usbfront to connect. The xen-usbfront in VM Guest isn't > > loaded. Therefore, "sysfs_intf_write" > > will report error. Does anyone have any clue how to solve this? > > > > 2. sysfs_intf_write > > In the process of "xl usb-attach domid intf=1-1", after writing > "1-1" to > > Xenstore entry, we need to > > bind the controller of this usb device to usbback driver so that it can > be > > used by VM Guest. For exampele, > > for usb device "1-1", it's controller interface maybe "1-1:1.0", and we > > write this value to "/sys/bus/usb/driver/usbback/bind". > > But for some devices, they have two controllers, for example "1-1:1.0" > and > > "1-1:1.1". I think this means it has two functions, > > such as usbhid and usb-storage. So in this case, we bind the two > controller > > to usbback? > > > > ======== > > There maybe some errors or bugs in the codes. Feel free to tell me. > > > > Cheers, > > > > - Simon > > > > --- > > CC: George Dunlap <george.dun...@eu.citrix.com> > > CC: Ian Jackson <ian.jack...@citrix.com> > > CC: Ian Campbell <ian.campb...@citrix.com> > > CC: Pasi Kärkkäinen <pa...@iki.fi> > > CC: Lars Kurth <lars.ku...@citrix.com> > > > > > > > > _______________________________________________ > > Xen-devel mailing list > > Xen-devel@lists.xen.org > > http://lists.xen.org/xen-devel > > > >
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