Re: [Xen-devel] Intel HD Graphics 4600 Xen VGA Passthrough to Windows 7 Ultimate HVM domU

["Ren, Yongjie" <yongjie.ren@xxxxxxxxx>]

> -----Original Message-----
> From: Singapore Citizen Mr. Teo En Ming (Zhang Enming)
> [mailto:singapore.mr.teo.en.ming@xxxxxxxxx]
> Sent: Wednesday, July 24, 2013 5:04 PM
> To: Pasi Kärkkäinen
> Cc: Ren, Yongjie; xen-users@xxxxxxxxxxxxx; Zhang, Xiantao;
> xen-devel@xxxxxxxxxxxxx; Teo En Ming (Zhang Enming)
> Subject: Re: [Xen-devel] Intel HD Graphics 4600 Xen VGA Passthrough to
> Windows 7 Ultimate HVM domU
> 
> On 23/07/2013 20:03, Pasi Kärkkäinen wrote:
> > On Mon, Jul 22, 2013 at 02:57:08PM +0000, Ren, Yongjie wrote:
> >>> Any Intel engineers here who can advise?
> >>>
> >> I'm also doing some testing but seems we didn't meet a similar issue
> with yours.
> >> Which CPU are you using?
> >> My Haswell desktop CPU (Core i5-4670) doesn't have the same IGD as
> yours.
> >> And, I'll have some update after I doing more testing.
> >>
> >> Best Regards,
> >>       Yongjie (Jay)
> >>
> > Hello Yongjie,
> >
> > Can you please describe the following info about your GPU passthru
> setup:
> >
> > - Xen hypervisor version/changeset
> > - Any patches to Xen?
> > - Cmdline options to Xen
> > - dom0 linux kernel version
> > - Cmdline options to dom0 linux kernel
> > - HVM guest OS/version
> > - IGD driver version in the HVM guest
> > - dom0 configuration and settings; I assume you're using xen-pciback?
> Did you blacklist igd driver in dom0 kernel? etc.
> >
> > I think that'd be helpful for others to get a similar baseline 
> > configuration.
> >
> > Thanks,
> >
> > -- Pasi
> >
> >
> 
> Dear Yongjie,
> 
> Could you share with us your hardware and software configuration
> settings?
> 
Sure. My IGD is also Intel HD Graphics 4600. :-)

1. hypervisor version: c/s 26666 in xen-unstable.hg tree  (5 months ago)
  traditional qemu commit: 5ae58eaa967495fce99b727422054c58750d252b
  Dom0 kernel: Linux 3.8.1
N.B. I didn't use the latest traditional qemu because of the following bug:
http://bugzilla-archived.xenproject.org//bugzilla/show_bug.cgi?id=1865

2. no offline patch. (just use the code in the tree I mentioned above.)

3. hypervisor options: dom0_mem=1024M iommu=1 loglvl=all guest_loglvl=all 
unrestricted_guest=1 msi=1
  dom0 kernel options: ro root=/dev/sda1

4. HVM guest: Windows 7 Enterprise

5. IGD driver version in HVM: 9.18.10.3165
  got to: https://downloadcenter.intel.com/
  then, search "4th Generation Intel Core Processors with intel hd graphics 
4600" to download the driver.

6. use 'xl pci-assignable-add $BDF' to add the IGD as assignable.
  (it also use 'xen.pciback' driver.)

7. dom0 kernel config is attached as file 'config-3.8.1'.

8. HVM guest config file:
builder= "hvm"
name= "vga-passthrough"
memory =1024
vcpus=4
device_model_override= '/usr/lib/xen/bin/qemu-dm'
device_model_version= 'qemu-xen-traditional'
disk = [ '/images/ia32e_win7.qcow,qcow2,xvda,rw' ]
vnc=1
serial='pty'
usb = 1
usbdevice = 'tablet'
gfx_passthru=1
pci = ['00:02.0','00:1d.0','07:00.0']  #'00:02.0' is IGD; the other two are 
mouse and keyboard.

9. I can successfully assign this IGD 4600 (in Core i5-4670 CPU) to the Windows 
guest. And the IGD can work fine.
  See some attached pictures for more info.


Best Regards,
     Yongjie (Jay)

Attachment: config-3.8.1
Description: config-3.8.1

Attachment: Intel-IGD-in-Win7-guest-1.png
Description: Intel-IGD-in-Win7-guest-1.png

Attachment: Intel-IGD-in-Win7-guest-2.png
Description: Intel-IGD-in-Win7-guest-2.png

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