Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

2015-12-02 Thread Ian Campbell
On Tue, 2015-12-01 at 15:03 -0600, Doug Goldstein wrote: > This works, but might have problems in Xen 4.5. If you're using running > on Linux 3.14 or newer then you will have a problem. You need to > backport commit 9c89dc95201ffed5fead17b35754bf9440fdbdc0 if you're using > the C based xenstore and

Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

2015-12-02 Thread Ian Campbell
On Tue, 2015-12-01 at 18:52 +0100, Roger Pau Monné wrote: > El 01/12/15 a les 17.48, Iurii Mykhalskyi ha escrit: > > > Does something like the following work? If not, could you paste the > > > error when running it with -vvv. > > > > > > xl block-attach DomU > > > format=raw,vdev=hdc,access=rw,bac

Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

2015-12-02 Thread Ian Campbell
On Tue, 2015-12-01 at 17:21 +, Wei Liu wrote: > > > In dom0 we have next issue: > > /libxl: error: libxl_device.c:283:libxl__device_disk_set_backend: Disk > > vdev=xvda10 failed to stat: /dev/sda1: No such file or directory//- > > /this issue occurs due to missing /dev/sda1 device (all hardwar

Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

2015-12-01 Thread Doug Goldstein
On 12/1/15 11:05 AM, Ian Campbell wrote: > On Tue, 2015-12-01 at 18:48 +0200, Iurii Mykhalskyi wrote: >> Thanks to all for a replays, please see my answers below: >> >> On 12/01/2015 05:29 PM, Wei Liu wrote: >>> On Tue, Dec 01, 2015 at 04:58:55PM +0200, Iurii Mykhalskyi wrote: Our real usb mas

Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

2015-12-01 Thread Roger Pau Monné
El 01/12/15 a les 17.48, Iurii Mykhalskyi ha escrit: >> Does something like the following work? If not, could you paste the >> error when running it with -vvv. >> >> xl block-attach DomU >> format=raw,vdev=hdc,access=rw,backend=DomD,target=/path/to/dev > In dom0 we have next issue: > /libxl: error:

Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

2015-12-01 Thread Wei Liu
On Tue, Dec 01, 2015 at 06:48:32PM +0200, Iurii Mykhalskyi wrote: > On 12/01/2015 05:41 PM, Ian Campbell wrote: > >On Tue, 2015-12-01 at 15:29 +, Wei Liu wrote: > >>On Tue, Dec 01, 2015 at 04:58:55PM +0200, Iurii Mykhalskyi wrote: > >>>Our real usb mass-storage device are located at driver doma

Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

2015-12-01 Thread Ian Campbell
On Tue, 2015-12-01 at 18:48 +0200, Iurii Mykhalskyi wrote: > Thanks to all for a replays, please see my answers below: > > On 12/01/2015 05:29 PM, Wei Liu wrote: > > On Tue, Dec 01, 2015 at 04:58:55PM +0200, Iurii Mykhalskyi wrote: > > > Our real usb mass-storage device are located at driver domai

Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

2015-12-01 Thread Iurii Mykhalskyi
Thanks to all for a replays, please see my answers below: On 12/01/2015 05:29 PM, Wei Liu wrote: On Tue, Dec 01, 2015 at 04:58:55PM +0200, Iurii Mykhalskyi wrote: Our real usb mass-storage device are located at driver domain (DomD). So we setup second block-device backend there. To hotplug usb

Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

2015-12-01 Thread Roger Pau Monné
Hello, El 01/12/15 a les 15.58, Iurii Mykhalskyi ha escrit: > Our real usb mass-storage device are located at driver domain (DomD). So we > setup second block-device backend there. > > To hotplug usb mass-storage from DomD we use follow command: > > xl block-attach domU_id phy:/bla-bla,xvda10,w,

Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

2015-12-01 Thread Ian Campbell
On Tue, 2015-12-01 at 15:29 +, Wei Liu wrote: > On Tue, Dec 01, 2015 at 04:58:55PM +0200, Iurii Mykhalskyi wrote: > > Our real usb mass-storage device are located at driver domain (DomD). > > So we > > setup second block-device backend there. > > > > To hotplug usb mass-storage from DomD we us

Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

2015-12-01 Thread Wei Liu
On Tue, Dec 01, 2015 at 04:58:55PM +0200, Iurii Mykhalskyi wrote: > Our real usb mass-storage device are located at driver domain (DomD). So we > setup second block-device backend there. > > To hotplug usb mass-storage from DomD we use follow command: > > xl block-attach domU_id phy:/bla-bla,xvda

Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

2015-12-01 Thread Iurii Mykhalskyi
Our real usb mass-storage device are located at driver domain (DomD). So we setup second block-device backend there. To hotplug usb mass-storage from DomD we use follow command: xl block-attach domU_id phy:/bla-bla,xvda10,w,backend="DomD" There was no support of attaching block-device in runtime

Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

2015-12-01 Thread Wei Liu
On Tue, Dec 01, 2015 at 03:24:13PM +0200, Pavlo Suikov wrote: > Hi, > > got a question regarding hotplugged devices in Xen 4.5. What we currently > have is Xen 4.5, Linux in Dom0 and DomD and Android in DomU. All the > devices are configured via domain config, so they are initialized on domain > s