From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gordan Bobic Subject: Re: usbdevice option and specifying a specific device Date: Mon, 05 Aug 2013 12:27:51 +0100 Message-ID: <53656e1e164ffe2568a9ec0116fead16@mail.shatteredsilicon.net> References: <51F6BFDD.8070500@bobich.net> <1375172598.11701.37.camel@kazak.uk.xensource.com> <51F8C9E7.20502@eu.citrix.com> <1375265575.32691.100.camel@kazak.uk.xensource.com> <51FF8B78.8070504@eu.citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <51FF8B78.8070504@eu.citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: George Dunlap Cc: Ian Campbell , "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org On Mon, 5 Aug 2013 12:24:40 +0100, George Dunlap wrote: > On 31/07/13 11:12, Ian Campbell wrote: >> On Wed, 2013-07-31 at 09:25 +0100, George Dunlap wrote: >>> On 30/07/13 09:23, Ian Campbell wrote: >>>> On Mon, 2013-07-29 at 20:17 +0100, Gordan Bobic wrote: >>>>> I'm trying to use usbdevice option in the config file (instead of >>>>> passing USB PCI devices), and the documentation says to specify >>>>> the >>>>> device in the form host:xxxx:yyyy where xxxx:yyyy is the USB >>>>> vendor:device ID. >>>>> >>>>> Except there is a problem with this - I have two identical >>>>> keyboards and >>>>> mice, one set of which I want to pass to the host, and the other >>>>> set >>>>> which I want to pass to the guest. Since the xxxx:yyyy will be >>>>> the same >>>>> for both devices of each type, how can I deterministically >>>>> specify which >>>>> I want to keep on the host and which I want to pass to the guest? >>>>> >>>>> Is there a way to use something like BusID:DeviceID instead in >>>>> order to >>>>> provide a more deterministic outcome? >>>> I think George (CCd) had some plans to improve this initial >>>> implementation in the 4.4 time frame. >>>> >>>> Since it looks like the devices which you pass are given direct to >>>> qemu's -usbdevice option it seems like host:bus.addr should work >>>> too. >>>> "Supporting" this option is perhaps just a docs patch away? >>> Yes, I think "host:bus.addr" should work as well. Let us know if >>> it >>> doesn't. >> If it does then we should add it to our docs as something which we >> support passing on to qemu. > > Gordan, did you try this? Yes, it works, but only if BusID != 8. See the bug report I posted yesterday. I will double check tonight whether the BusID=8 gets clobbered into BusID=0 at xl or qemu-dm level. Gordan