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

["Hao, Xudong" <xudong.hao@xxxxxxxxx>]

> -----Original Message-----
> From: Stefano Stabellini [mailto:stefano.stabellini@xxxxxxxxxxxxx]
> Sent: Monday, January 11, 2016 6:46 PM
> To: Hao, Xudong <xudong.hao@xxxxxxxxx>
> Cc: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>; Lars Kurth
> <lars.kurth.xen@xxxxxxxxx>; Lars Kurth <lars.kurth@xxxxxxxxxx>; Cao jin
> <caoj.fnst@xxxxxxxxxxxxxx>; xen-devel@xxxxxxxxxxxxxxxxxxx; Stefano Stabellini
> <Stefano.Stabellini@xxxxxxxxxx>; qemu-devel@xxxxxxxxxx; Michael S. Tsirkin
> <mst@xxxxxxxxxx>
> Subject: RE: [Xen-devel] [PATCH v4] igd-passthrough-i440FX: convert to 
> realize()
> 
> 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.
> 
The Linux VM's kernel is 3.18.

> 
> > Will try the two patch together later.
> 
> That would be useful
> 
With the two patch, Linux VM (with 3.18) boot up successfully. RHEL7.2(default 
kernel 3.10) and Windows8.1 VM boot up fail with IGD pass-through.
The result is same w/o these two patches.
 
> 
> > > -----Original Message-----
> > > From: Stefano Stabellini [mailto:stefano.stabellini@xxxxxxxxxxxxx]
> > > Sent: Friday, January 8, 2016 7:57 PM
> > > To: Hao, Xudong <xudong.hao@xxxxxxxxx>
> > > Cc: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>; Lars
> > > Kurth <lars.kurth.xen@xxxxxxxxx>; Lars Kurth
> > > <lars.kurth@xxxxxxxxxx>; Cao jin <caoj.fnst@xxxxxxxxxxxxxx>;
> > > xen-devel@xxxxxxxxxxxxxxxxxxx; Stefano Stabellini
> > > <Stefano.Stabellini@xxxxxxxxxx>; qemu-devel@xxxxxxxxxx; Michael S.
> > > Tsirkin <mst@xxxxxxxxxx>
> > > 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@xxxxxxxxxxxxx]
> > > > > Sent: Wednesday, January 6, 2016 8:18 PM
> > > > > To: Lars Kurth <lars.kurth.xen@xxxxxxxxx>
> > > > > Cc: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>; Hao,
> > > > > Xudong <xudong.hao@xxxxxxxxx>; Lars Kurth
> > > > > <lars.kurth@xxxxxxxxxx>; Cao jin <caoj.fnst@xxxxxxxxxxxxxx>;
> > > > > xen-devel@xxxxxxxxxxxxxxxxxxx; Stefano Stabellini
> > > > > <Stefano.Stabellini@xxxxxxxxxx>; qemu-devel@xxxxxxxxxx; Michael
> > > > > S. Tsirkin <mst@xxxxxxxxxx>
> > > > > 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@xxxxxxxxxxxxx>
> > > > > wrote:
> > > > > > >
> > > > > > > On Mon, 4 Jan 2016, Lars Kurth wrote:
> > > > > > >> On 04/01/2016 14:47, "Stefano Stabellini"
> > > > > > >> <stefano.stabellini@xxxxxxxxxxxxx> 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@xxxxxxxxxxxxx
> > > > > > > http://lists.xen.org/xen-devel
> > > > > >
> > > >
> >

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