Re: [Xen-users] Result of Applying IGD VGA Passthrough Patches to Xen 4.4-unstable Changeset 27238

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Tue, Jul 16, 2013 at 04:00:34PM +0800, Singapore Citizen Mr. Teo En Ming 
(Zhang Enming) wrote:
> On 16/07/2013 15:24, Pasi Kärkkäinen wrote:
> >On Tue, Jul 16, 2013 at 12:31:28PM +0800, Singapore Citizen Mr. Teo En Ming 
> >(Zhang Enming) wrote:
> >>Hi,
> >>
> >>I have just applied IGD VGA Passthrough patches to Xen 4.4-unstable
> >>changeset 27238. Please refer to the 2 attached patches.
> >>
> >>1. [Xen-devel] [PATCH 2/3] V4 qemu-xen-trad: Correctly expose PCH
> >>ISA bridge for IGD passthrough
> >>Link: 
> >>http://lists.xenproject.org/archives/html/xen-devel/2013-06/msg01720.html
> >>
> >>2. [Xen-devel] [PATCH 3/3] qemu-xen-trad: IGD passthrough: Expose
> >>vendor specific pci cap on host bridge.
> >>Link: 
> >>http://lists.xenproject.org/archives/html/xen-devel/2013-02/msg00538.html
> >>
> >>These are the steps I took to patch, compile and install Xen
> >>4.4-unstable changeset 27238.
> >>
> >>cd
> >>hg clone -r 27238 http://xenbits.xensource.com/xen-unstable.hg
> >>xen-unstable.hg-cs27238
> >>cd xen-unstable.hg-cs27238
> >>sudo -s
> >>./configure
> >>make world
> >>make clean
> >>cd tools/qemu-xen-traditional-dir-remote
> >>patch -p1 < patch2of3.txt
> >>patch -p1 < patch3of3.txt
> >>cd ../..
> >>make world
> >>make install
> >>
> >>However, I still encountered problems installing Intel HD Graphics
> >>display drivers. The driver installation would auto detect the
> >>display adapter, causing the LCD monitor to blink 1-2 times. But
> >>after that, the LCD monitor goes into Power Saving mode (blank
> >>screen) forever again. I tried to destroy the Windows 8 HVM domU and
> >>restart it. Windows 8 HVM domU would start up for a few seconds,
> >>then falls back to blank LCD monitor screen forever again.
> >>
> >Did you try installing the driver *before* enabling IGD passthru? (if that's 
> >possible)
> >
> >-- Pasi
> >
> >
> 
> It's not possible. The Intel HD Graphics display driver does not
> allow me to install the graphics driver without the existence of
> Intel HD Graphics 4600 IGD.
> 
> Is there any other workaround?
> 

- Are you using qemu-traditional for sure? 
- Are there any cmdline options for the Intel driver installer to install 
without the device present? 
- Any errors in the Xen dmesg? How about qemu logs? dom0 dmesg? 


-- Pasi


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