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From: Juergen Gross <jgross@suse.com>
To: Wei Liu <wei.liu2@citrix.com>
Cc: George Dunlap <dunlapg@umich.edu>,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
	Ian Jackson <ian.jackson@eu.citrix.com>,
	Chunyan Liu <cyliu@suse.com>,
	"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
Subject: Re: [PATCH 3/3] libxl: add new pvusb backend "qusb" provided by qemu
Date: Fri, 25 Mar 2016 07:09:25 +0100	[thread overview]
Message-ID: <56F4D615.3040107@suse.com> (raw)
In-Reply-To: <20160324200750.GB14940@citrix.com>

On 24/03/16 21:07, Wei Liu wrote:
> On Fri, Mar 18, 2016 at 09:24:26AM +0100, Juergen Gross wrote:
>> On 17/03/16 17:55, George Dunlap wrote:
>>> On Thu, Mar 10, 2016 at 3:00 PM, Juergen Gross <jgross@suse.com> wrote:
>>>> Add a new pvusb backend type "qusb" which is provided by qemu. It can
>>>> be selected either by specifying the type directly in the configuration
>>>> or it is selected automatically by libxl in case there is no "usbback"
>>>> driver loaded.
>>>> Signed-off-by: Juergen Gross <jgross@suse.com>
>>> Oh, last thing -- shouldn't we have a way for libxl to tell whether
>>> qemu can provide a qusb backend before we offer to start it up?
>> How? Is this possible for qdisk? Or for an emulated frame buffer?
> I don't think it is  possible at the moment. But I think you might be
> able to do it either via qmp command or parsing qemu help string. The
> latter functionality is implemented in Ian's device model deprivilege
> patch series IIRC -- but it is not yet merged either.

Won't help for qusb, as there is no qemu parameter or help text related
to the backend. It would be possible to add a qmp command to print the
supported backend types, of course.


Xen-devel mailing list

  reply	other threads:[~2016-03-25  6:09 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-10 15:00 [PATCH 0/3] libxl: add support for qemu base pvusb backend Juergen Gross
2016-03-10 15:00 ` [PATCH 1/3] libxl: make libxl__need_xenpv_qemu() operate on domain config Juergen Gross
2016-03-17 16:53   ` George Dunlap
2016-03-18  8:23     ` Juergen Gross
2016-03-10 15:00 ` [PATCH 2/3] libxl: add domain config parameter to force start of qemu Juergen Gross
2016-03-17 16:06   ` George Dunlap
2016-03-18  8:11     ` Juergen Gross
2016-03-21 14:28       ` George Dunlap
2016-03-21 14:44         ` Juergen Gross
2016-03-10 15:00 ` [PATCH 3/3] libxl: add new pvusb backend "qusb" provided by qemu Juergen Gross
2016-03-17 16:39   ` George Dunlap
2016-03-18  8:22     ` Juergen Gross
2016-03-17 16:55   ` George Dunlap
2016-03-18  8:24     ` Juergen Gross
2016-03-24 20:07       ` Wei Liu
2016-03-25  6:09         ` Juergen Gross [this message]
2016-03-29  9:45           ` George Dunlap
2016-03-29 10:35             ` Juergen Gross
2016-03-30  4:43               ` Juergen Gross

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