Re: [Qemu-devel] [Xen-devel] [PATCH v4] igd-passthrough-i440FX: convert to realize()

[Cao jin <caoj.fnst@cn.fujitsu.com>]

Hi

On 01/11/2016 05:53 PM, Hao, Xudong wrote:
> Stefano,
>
> Patch http://marc.info/?l=qemu-devel&m=145137863501079 don't works for qemu at all, some conflict when git apply.
> Patch http://marc.info/?l=qemu-devel&m=145137863501079 is based on patch http://marc.info/?l=qemu-devel&m=145172165010604, right?
>
> I can boot up Linux VM with IGD pass-through with latest qemu (without any additional patch), guest run 3D "nexuiz" and get 180fps.
>

Because commit: 349a3b1cc is already in the latest qemu(maybe the day 
before yesterday?), so I guess that is why latest qemu works well with
igd-passthru and also the same reason for git apply conflict?

> Will try the two patch together later.
>
> Thanks,
> -Xudong
>
>
>> -----Original Message-----
>> From: Stefano Stabellini [mailto:stefano.stabellini@eu.citrix.com]
>> Sent: Friday, January 8, 2016 7:57 PM
>> To: Hao, Xudong <xudong.hao@intel.com>
>> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>; Lars Kurth
>> <lars.kurth.xen@gmail.com>; Lars Kurth <lars.kurth@citrix.com>; Cao jin
>> <caoj.fnst@cn.fujitsu.com>; xen-devel@lists.xensource.com; Stefano Stabellini
>> <Stefano.Stabellini@citrix.com>; qemu-devel@nongnu.org; Michael S. Tsirkin
>> <mst@redhat.com>
>> Subject: RE: [Xen-devel] [PATCH v4] igd-passthrough-i440FX: convert to realize()
>>
>> Since you are at it, could you please let me know how well igd passthrough
>> works without this bugfix:
>>
>> http://marc.info/?l=qemu-devel&m=145172165010604
>>
>> which is about to land in QEMU.  I guess it doesn't work at all?
>>
>> I am asking because I would like to know the level of support we need to provide
>> to igd passthrough with the latest QEMU release (2.5).
>>
>>
>> On Thu, 7 Jan 2016, Hao, Xudong wrote:
>>> Sure. I'll test it soon.
>>>
>>> Thanks,
>>> -Xudong
>>>
>>>> -----Original Message-----
>>>> From: Stefano Stabellini [mailto:stefano.stabellini@eu.citrix.com]
>>>> Sent: Wednesday, January 6, 2016 8:18 PM
>>>> To: Lars Kurth <lars.kurth.xen@gmail.com>
>>>> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>; Hao,
>>>> Xudong <xudong.hao@intel.com>; Lars Kurth <lars.kurth@citrix.com>;
>>>> Cao jin <caoj.fnst@cn.fujitsu.com>; xen-devel@lists.xensource.com;
>>>> Stefano Stabellini <Stefano.Stabellini@citrix.com>;
>>>> qemu-devel@nongnu.org; Michael S. Tsirkin <mst@redhat.com>
>>>> Subject: Re: [Xen-devel] [PATCH v4] igd-passthrough-i440FX: convert
>>>> to realize()
>>>>
>>>> Hello Xudong,
>>>>
>>>> please test this patch:
>>>>
>>>> http://marc.info/?l=qemu-devel&m=145137863501079
>>>>
>>>> with an intel graphic card assigned to a Xen guest. If everything
>>>> still works as expected, please reply with your Tested-by.
>>>>
>>>> Thanks,
>>>>
>>>> Stefano
>>>>
>>>> On Wed, 6 Jan 2016, Lars Kurth wrote:
>>>>> Hi folks,
>>>>> let me introduce you to Xudong from Intel, who is willing to help out.
>>>>> Best Regards
>>>>> Lars
>>>>>
>>>>>> On 4 Jan 2016, at 15:41, Stefano Stabellini
>>>>>> <stefano.stabellini@eu.citrix.com>
>>>> wrote:
>>>>>>
>>>>>> On Mon, 4 Jan 2016, Lars Kurth wrote:
>>>>>>> On 04/01/2016 14:47, "Stefano Stabellini"
>>>>>>> <stefano.stabellini@eu.citrix.com> wrote:
>>>>>>>
>>>>>>>> Unfortunately I don't have a setup to test this either. Maybe
>>>>>>>> Lars can find out who should be involved on the Intel side on this.
>>>>>>>
>>>>>>> I can certainly help to this and get back to you. What exactly
>>>>>>> are we asking Intel to do?
>>>>>>> It is not clear to me from this email thread
>>>>>>
>>>>>> Tiejun Chen, the author of the Intel graphic card passthrough
>>>>>> patches for QEMU, seems to have left the company. It would be
>>>>>> nice if somebody else tested this patch with an intel graphic
>>>>>> card assigned to a guest VM.
>>>>>>
>>>>>> _______________________________________________
>>>>>> Xen-devel mailing list
>>>>>> Xen-devel@lists.xen.org
>>>>>> http://lists.xen.org/xen-devel
>>>>>
>>>
>
>
> .
>

-- 
Yours Sincerely,

Cao jin