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

[Stefano Stabellini]

On Mon, 11 Jan 2016, 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. 

Very interesting, thanks for testing.


> Will try the two patch together later.

That would be useful


> > -----Original Message-----
> > From: Stefano Stabellini [mailto:address@hidden
> > Sent: Friday, January 8, 2016 7:57 PM
> > To: Hao, Xudong <address@hidden>
> > Cc: Stefano Stabellini <address@hidden>; Lars Kurth
> > <address@hidden>; Lars Kurth <address@hidden>; Cao jin
> > <address@hidden>; address@hidden; Stefano Stabellini
> > <address@hidden>; address@hidden; Michael S. Tsirkin
> > <address@hidden>
> > 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:address@hidden
> > > > Sent: Wednesday, January 6, 2016 8:18 PM
> > > > To: Lars Kurth <address@hidden>
> > > > Cc: Stefano Stabellini <address@hidden>; Hao,
> > > > Xudong <address@hidden>; Lars Kurth <address@hidden>;
> > > > Cao jin <address@hidden>; address@hidden;
> > > > Stefano Stabellini <address@hidden>;
> > > > address@hidden; Michael S. Tsirkin <address@hidden>
> > > > 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
> > > > > > <address@hidden>
> > > > wrote:
> > > > > >
> > > > > > On Mon, 4 Jan 2016, Lars Kurth wrote:
> > > > > >> On 04/01/2016 14:47, "Stefano Stabellini"
> > > > > >> <address@hidden> 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
> > > > > > address@hidden
> > > > > > http://lists.xen.org/xen-devel
> > > > >
> > >
>