Re: [Xen-devel] [BUG REPORT] My Xen 4.3-unstable Changeset 26666 Installation is Broken!

[Gordan Bobic <gordan@xxxxxxxxxx>]

On 07/27/2013 10:52 AM, Singapore Citizen Mr. Teo En Ming (Zhang Enming) 
wrote:
> On 27/07/2013 17:49, Singapore Citizen Mr. Teo En Ming (Zhang Enming)
> wrote:
> > On 26/07/2013 16:52, Ren, Yongjie wrote:
> > > > -----Original Message-----
> > > > From: Singapore Citizen Mr. Teo En Ming (Zhang Enming)
> > > > [mailto:singapore.mr.teo.en.ming@xxxxxxxxx]
> > > > Sent: Friday, July 26, 2013 4:39 PM
> > > > To: xen-devel@xxxxxxxxxxxxx; Teo En Ming (Zhang Enming); Ian Campbell;
> > > > Konrad Rzeszutek Wilk; Ren, Yongjie
> > > > Subject: [BUG REPORT] My Xen 4.3-unstable Changeset 26666 Installation
> > > > is Broken!
> > > >
> > > > Hi,
> > > >
> > > > My Xen 4.3-unstable changeset 26666 installation is broken. The
> > > > following is my bug report.
> > > >
> > > > teo-en-ming@intel-core-i5-4430-desktop:~$ sudo xl create
> > > > /etc/xen/windows7
> > > > Parsing config from /etc/xen/windows7
> > > > failed to free memory for the domain
> > > >
> > > > teo-en-ming@intel-core-i5-4430-desktop:~$ sudo xl list
> > > > libxl: error: libxl.c:557:libxl_list_domain: geting domain info list:
> > > > Permission denied
> > > > libxl_domain_infolist failed.
> > > >
> > > > teo-en-ming@intel-core-i5-4430-desktop:~$ sudo xl dmesg
> > > > libxl: error: libxl.c:4759:libxl_xen_console_read_line: reading console
> > > > ring buffer: Permission denied
> > > >
> > > > teo-en-ming@intel-core-i5-4430-desktop:~$ sudo xl info
> > > > host                   : intel-core-i5-4430-desktop
> > > > release                : 3.10.0-xen-teo.en.ming-sgp
> > > > version                : #1 SMP Sat Jul 13 00:07:55 SGT 2013
> > > > machine                : x86_64
> > > > libxl: error: libxl.c:3938:libxl_get_physinfo: getting physinfo:
> > > > Permission denied
> > > > libxl_physinfo failed.
> > > > libxl: error: libxl.c:4320:libxl_get_scheduler: getting domain info
> > > > list: Permission denied
> > > > xen_major              : 4
> > > > xen_minor              : 3
> > > > xen_extra              : -unstable
> > > > xen_version            : 4.3-unstable
> > > > xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p
> > > > hvm-3.0-x86_32
> > > > hvm-3.0-x86_32p hvm-3.0-x86_64
> > > > xen_scheduler          : (null)
> > > > xen_pagesize           : 4096
> > > > platform_params        : virt_start=0xffff800000000000
> > > > xen_changeset          : Thu Feb 28 09:22:41 2013 +0100
> > > > 26666:94ece33caae2
> > > > xen_commandline        :
> > > > cc_compiler            : gcc (Ubuntu/Linaro 4.7.3-1ubuntu1) 4.7.3
> > > > cc_compile_by          : root
> > > > cc_compile_domain      :
> > > > cc_compile_date        : Thu Jul 25 23:20:43 SGT 2013
> > > > xend_config_format     : 4
> > > >
> > > > Please let me know how to solve this bug.
> > > I don't know how to resolve it.
> > > But if you want to do IGD passthrough, you can try with Xen 4.3.0
> > > release with latest traditional qemu.
> > > It can also successful for me with Xen 4.3.0 release with latest
> > > traditional qemu.
> > >
> > > Best Regards,
> > >       Yongjie (Jay)
> > >
> > >
> > > > Thank you very much.
> > > >
> > > > --
> > > > Yours sincerely,
> > > >
> > > > Singapore Citizen Mr. Teo En Ming (Zhang Enming)
> > Hi Yongjie,
> >
> > I tried to use Xen 4.3.0 official release and Linux kernel 3.8.1 but
> > IGD passthrough is still unsuccessful. Yellow triangle with
> > exclamation mark and error code 43 still show up in Device Manager for
> > Intel HD Graphics 4600.
> >
> > I have attached my configuration files. What else can I do?
> >
> > I have also filed a bug for Xen 4.3-unstable changeset 26666 at
> > http://bugzilla-archived.xenproject.org/bugzilla/show_bug.cgi?id=1869
> Hi All,
>
> Please check through my configuration files to see if there is any error
> or mistake.
>
> Thank you very much.
Have you tried a vBAR=pBAR patch?

See here for more details:

http://www.davidgis.fr/blog/index.php?2011/12/07/860-xen-42unstable-patches-for-vga-pass-through

This is mainly aimed at Nvidia GeForce cards (GeForce drivers don't 
handle the case where vBAR != pBAR, but Quadro drivers do - I modified 
my GeForce cards to equivalent Quadros to work around the issue). But - 
it may also help with your situation. It is entirely plausible that your 
GPU is having problems finding some of it's BARs, which might also 
explain why it is stuck in a low resolution / 4-bit colour mode.
I am not sure how much you might need to adapt this and which patches 
you can skip or will have to modify for IGD instead of GeForce, but it's 
probably worth a shot.
Gordan

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel